{"id":8555,"date":"2026-09-13T00:19:51","date_gmt":"2026-09-12T17:19:51","guid":{"rendered":"https:\/\/docx247.com\/?post_type=product&#038;p=8555"},"modified":"2026-09-13T13:09:35","modified_gmt":"2026-09-13T06:09:35","slug":"nguyen-ly-he-dieu-hanh-dap-an-trac-nghiem-dai-hoc-quoc-gia-ha-noi","status":"publish","type":"product","link":"https:\/\/docx247.com\/en\/tai-lieu\/nguyen-ly-he-dieu-hanh-dap-an-trac-nghiem-dai-hoc-quoc-gia-ha-noi\/","title":{"rendered":"Nguy\u00ean l\u00fd H\u1ec7 \u0111i\u1ec1u h\u00e0nh VNU \u2013 \u0110\u00e1p \u00e1n tr\u1eafc nghi\u1ec7m \u0110\u1ea1i h\u1ecdc Qu\u1ed1c gia H\u00e0 N\u1ed9i (File DOCX)"},"content":{"rendered":"<p><strong>\ud83d\udcd8 NGUY\u00caN L\u00dd H\u1ec6 \u0110I\u1ec0U H\u00c0NH VNU \u2013 \u0110\u00c1P \u00c1N TR\u1eaeC NGHI\u1ec6M \u0110\u1ea0I H\u1eccC QU\u1ed0C GIA H\u00c0 N\u1ed8I<\/strong><\/p>\n<p><strong>\ud83d\udc41 XEM TR\u01af\u1edaC 20\u201330% N\u1ed8I DUNG<\/strong><\/p>\n<p>Ng\u01b0\u1eddi d\u00f9ng c\u00f3 th\u1ec3 xem tr\u01b0\u1edbc kho\u1ea3ng 20\u201330% n\u1ed9i dung c\u1ee7a t\u00e0i li\u1ec7u 156 trang tr\u01b0\u1edbc khi quy\u1ebft \u0111\u1ecbnh t\u1ea3i b\u1ea3n \u0111\u1ea7y \u0111\u1ee7.<\/p>\n<p>Ph\u1ea7n xem tr\u01b0\u1edbc gi\u00fap ki\u1ec3m tra:<\/p>\n<ul>\n<li>C\u1ea5u tr\u00fac t\u00e0i li\u1ec7u.<\/li>\n<li>C\u00e1ch tr\u00ecnh b\u00e0y.<\/li>\n<li>D\u1ea1ng c\u00e2u h\u1ecfi.<\/li>\n<li>C\u00e1ch b\u1ed1 tr\u00ed \u0111\u00e1p \u00e1n.<\/li>\n<li>M\u1ed9t ph\u1ea7n n\u1ed9i dung th\u1ef1c t\u1ebf c\u1ee7a t\u00e0i li\u1ec7u.<\/li>\n<\/ul>\n<p><strong>\ud83d\udce5 NH\u1eacN FILE DOCX \u0110\u1ea6Y \u0110\u1ee6<\/strong><\/p>\n<p>Sau khi thanh to\u00e1n th\u00e0nh c\u00f4ng, ng\u01b0\u1eddi d\u00f9ng c\u00f3 th\u1ec3 t\u1ea3i file DOCX \u0111\u1ea7y \u0111\u1ee7 156 trang v\u1ec1 m\u00e1y \u0111\u1ec3 s\u1eed d\u1ee5ng trong qu\u00e1 tr\u00ecnh h\u1ecdc t\u1eadp, luy\u1ec7n t\u1eadp v\u00e0 \u00f4n thi.<\/p>\n<p><strong>\ud83d\udcb3 THANH TO\u00c1N QUA VNPAY<\/strong><\/p>\n<p>Thanh to\u00e1n nhanh ch\u00f3ng, thu\u1eadn ti\u1ec7n qua VNPAY. Sau khi giao d\u1ecbch th\u00e0nh c\u00f4ng, h\u1ec7 th\u1ed1ng cung c\u1ea5p t\u00e0i li\u1ec7u \u0111\u1ec3 ng\u01b0\u1eddi d\u00f9ng t\u1ea3i xu\u1ed1ng.<\/p>\n<p><strong>\ud83c\udfaf \u00d4N \u0110\u00daNG TR\u1eccNG T\u00c2M \u2013 TRA C\u1ee8U NHANH \u2013 TI\u1ebeT KI\u1ec6M TH\u1edcI GIAN<\/strong><\/p>\n<p>T\u00e0i li\u1ec7u \u0110\u00e1p \u00e1n tr\u1eafc nghi\u1ec7m Nguy\u00ean l\u00fd H\u1ec7 \u0111i\u1ec1u h\u00e0nh VNU \u2013 \u0110\u1ea1i h\u1ecdc Qu\u1ed1c gia H\u00e0 N\u1ed9i g\u1ed3m 156 trang, \u0111\u01b0\u1ee3c chu\u1ea9n b\u1ecb nh\u1eb1m h\u1ed7 tr\u1ee3 sinh vi\u00ean luy\u1ec7n t\u1eadp c\u00e2u h\u1ecfi, ki\u1ec3m tra \u0111\u00e1p \u00e1n, h\u1ec7 th\u1ed1ng h\u00f3a ki\u1ebfn th\u1ee9c tr\u1ecdng t\u00e2m v\u00e0 h\u1ed7 tr\u1ee3 \u00f4n t\u1eadp, \u00f4n thi hi\u1ec7u qu\u1ea3.<\/p>\n<p>\ud83d\udcbb Nguy\u00ean l\u00fd H\u1ec7 \u0111i\u1ec1u h\u00e0nh l\u00e0 m\u00f4n h\u1ecdc cung c\u1ea5p ki\u1ebfn th\u1ee9c n\u1ec1n t\u1ea3ng v\u1ec1 c\u00e1ch h\u1ec7 \u0111i\u1ec1u h\u00e0nh qu\u1ea3n l\u00fd v\u00e0 \u0111i\u1ec1u ph\u1ed1i c\u00e1c t\u00e0i nguy\u00ean c\u1ee7a h\u1ec7 th\u1ed1ng m\u00e1y t\u00ednh. N\u1ed9i dung th\u01b0\u1eddng li\u00ean quan \u0111\u1ebfn ti\u1ebfn tr\u00ecnh, lu\u1ed3ng, l\u1eadp l\u1ecbch CPU, \u0111\u1ed3ng b\u1ed9 h\u00f3a, deadlock, qu\u1ea3n l\u00fd b\u1ed9 nh\u1edb, b\u1ed9 nh\u1edb \u1ea3o, h\u1ec7 th\u1ed1ng t\u1ec7p, thi\u1ebft b\u1ecb v\u00e0o\/ra, l\u01b0u tr\u1eef, b\u1ea3o v\u1ec7 v\u00e0 an to\u00e0n h\u1ec7 th\u1ed1ng.<\/p>\n<p>Vi\u1ec7c n\u1eafm ch\u1eafc c\u00e1c nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng gi\u00fap ng\u01b0\u1eddi h\u1ecdc hi\u1ec3u m\u1ed1i quan h\u1ec7 gi\u1eefa ph\u1ea7n c\u1ee9ng, h\u1ec7 \u0111i\u1ec1u h\u00e0nh v\u00e0 ch\u01b0\u01a1ng tr\u00ecnh \u1ee9ng d\u1ee5ng; \u0111\u1ed3ng th\u1eddi h\u00ecnh th\u00e0nh n\u1ec1n t\u1ea3ng \u0111\u1ec3 ti\u1ebfp c\u1eadn c\u00e1c m\u00f4n chuy\u00ean s\u00e2u h\u01a1n v\u1ec1 h\u1ec7 th\u1ed1ng m\u00e1y t\u00ednh, m\u1ea1ng, l\u1eadp tr\u00ecnh h\u1ec7 th\u1ed1ng v\u00e0 an to\u00e0n th\u00f4ng tin.<\/p>\n<p>T\u00e0i li\u1ec7u gi\u00fap sinh vi\u00ean ch\u1ee7 \u0111\u1ed9ng r\u00e0 so\u00e1t ki\u1ebfn th\u1ee9c, ph\u00e1t hi\u1ec7n nh\u1eefng n\u1ed9i dung c\u00f2n ch\u01b0a ch\u1eafc, luy\u1ec7n t\u1eadp c\u00e1c d\u1ea1ng c\u00e2u h\u1ecfi tr\u1eafc nghi\u1ec7m v\u00e0 chu\u1ea9n b\u1ecb t\u1ed1t h\u01a1n cho ki\u1ec3m tra ho\u1eb7c thi k\u1ebft th\u00fac h\u1ecdc ph\u1ea7n.<\/p>\n<p><strong>\u2705 T\u00c0I LI\u1ec6U H\u1ed6 TR\u1ee2:<\/strong><\/p>\n<ul>\n<li>Luy\u1ec7n t\u1eadp c\u00e2u h\u1ecfi tr\u1eafc nghi\u1ec7m theo t\u1eebng nh\u00f3m ki\u1ebfn th\u1ee9c.<\/li>\n<li>Ki\u1ec3m tra v\u00e0 \u0111\u1ed1i chi\u1ebfu \u0111\u00e1p \u00e1n nhanh ch\u00f3ng.<\/li>\n<li>H\u1ec7 th\u1ed1ng ki\u1ebfn th\u1ee9c Nguy\u00ean l\u00fd H\u1ec7 \u0111i\u1ec1u h\u00e0nh.<\/li>\n<li>C\u1ee7ng c\u1ed1 ki\u1ebfn th\u1ee9c v\u1ec1 ti\u1ebfn tr\u00ecnh v\u00e0 lu\u1ed3ng.<\/li>\n<li>\u00d4n t\u1eadp c\u00e1c thu\u1eadt to\u00e1n l\u1eadp l\u1ecbch CPU.<\/li>\n<li>H\u1ec7 th\u1ed1ng ki\u1ebfn th\u1ee9c v\u1ec1 \u0111\u1ed3ng b\u1ed9 h\u00f3a ti\u1ebfn tr\u00ecnh.<\/li>\n<li>Ph\u00e2n bi\u1ec7t semaphore, mutex v\u00e0 c\u00e1c c\u01a1 ch\u1ebf \u0111\u1ed3ng b\u1ed9.<\/li>\n<li>\u00d4n t\u1eadp deadlock v\u00e0 c\u00e1c ph\u01b0\u01a1ng ph\u00e1p x\u1eed l\u00fd.<\/li>\n<li>C\u1ee7ng c\u1ed1 ki\u1ebfn th\u1ee9c qu\u1ea3n l\u00fd b\u1ed9 nh\u1edb.<\/li>\n<li>H\u1ec7 th\u1ed1ng ki\u1ebfn th\u1ee9c v\u1ec1 b\u1ed9 nh\u1edb \u1ea3o.<\/li>\n<li>\u00d4n t\u1eadp c\u00e1c thu\u1eadt to\u00e1n thay th\u1ebf trang.<\/li>\n<li>C\u1ee7ng c\u1ed1 ki\u1ebfn th\u1ee9c v\u1ec1 h\u1ec7 th\u1ed1ng t\u1ec7p.<\/li>\n<li>\u00d4n t\u1eadp qu\u1ea3n l\u00fd thi\u1ebft b\u1ecb v\u00e0o\/ra v\u00e0 l\u01b0u tr\u1eef.<\/li>\n<li>H\u1ec7 th\u1ed1ng ki\u1ebfn th\u1ee9c v\u1ec1 b\u1ea3o v\u1ec7 v\u00e0 an to\u00e0n h\u1ec7 th\u1ed1ng.<\/li>\n<li>Nh\u1eadn di\u1ec7n nh\u1eefng ph\u1ea7n ki\u1ebfn th\u1ee9c c\u00f2n y\u1ebfu.<\/li>\n<li>Ti\u1ebft ki\u1ec7m th\u1eddi gian t\u1ef1 t\u1ed5ng h\u1ee3p c\u00e2u h\u1ecfi v\u00e0 \u0111\u00e1p \u00e1n.<\/li>\n<li>H\u1ed7 tr\u1ee3 \u00f4n t\u1eadp, \u00f4n thi hi\u1ec7u qu\u1ea3.<\/li>\n<\/ul>\n<p><strong>\ud83d\udcc4 FILE DOCX 156 TRANG THU\u1eacN TI\u1ec6N S\u1eec D\u1ee4NG<\/strong><\/p>\n<p>T\u00e0i li\u1ec7u \u0111\u01b0\u1ee3c cung c\u1ea5p d\u01b0\u1edbi \u0111\u1ecbnh d\u1ea1ng DOCX g\u1ed3m 156 trang, thu\u1eadn ti\u1ec7n \u0111\u1ec3:<\/p>\n<ul>\n<li>T\u1ea3i v\u00e0 l\u01b0u tr\u1eef tr\u00ean m\u00e1y t\u00ednh.<\/li>\n<li>T\u00ecm ki\u1ebfm nhanh t\u1eeb kh\u00f3a.<\/li>\n<li>Tra c\u1ee9u c\u00e2u h\u1ecfi v\u00e0 \u0111\u00e1p \u00e1n.<\/li>\n<li>S\u1eed d\u1ee5ng b\u1eb1ng Microsoft Word ho\u1eb7c ph\u1ea7n m\u1ec1m h\u1ed7 tr\u1ee3 DOCX.<\/li>\n<li>Ghi ch\u00fa v\u00e0 \u0111\u00e1nh d\u1ea5u n\u1ed9i dung khi \u00f4n t\u1eadp.<\/li>\n<li>\u00d4n t\u1eadp nhi\u1ec1u l\u1ea7n khi c\u1ea7n.<\/li>\n<\/ul>\n<p><strong>\ud83c\udf93 T\u00c0I LI\u1ec6U PH\u00d9 H\u1ee2P V\u1edaI:<\/strong><\/p>\n<ul>\n<li>Sinh vi\u00ean \u0110\u1ea1i h\u1ecdc Qu\u1ed1c gia H\u00e0 N\u1ed9i \u0111ang h\u1ecdc m\u00f4n Nguy\u00ean l\u00fd H\u1ec7 \u0111i\u1ec1u h\u00e0nh.<\/li>\n<li>Sinh vi\u00ean ng\u00e0nh C\u00f4ng ngh\u1ec7 th\u00f4ng tin.<\/li>\n<li>Sinh vi\u00ean ng\u00e0nh Khoa h\u1ecdc m\u00e1y t\u00ednh.<\/li>\n<li>Sinh vi\u00ean ng\u00e0nh H\u1ec7 th\u1ed1ng th\u00f4ng tin.<\/li>\n<li>Sinh vi\u00ean c\u00e1c ng\u00e0nh k\u1ef9 thu\u1eadt m\u00e1y t\u00ednh v\u00e0 ng\u00e0nh li\u00ean quan.<\/li>\n<li>Sinh vi\u00ean c\u1ea7n c\u1ee7ng c\u1ed1 ki\u1ebfn th\u1ee9c v\u1ec1 h\u1ec7 \u0111i\u1ec1u h\u00e0nh.<\/li>\n<li>Sinh vi\u00ean c\u1ea7n luy\u1ec7n t\u1eadp c\u00e2u h\u1ecfi tr\u1eafc nghi\u1ec7m.<\/li>\n<li>Sinh vi\u00ean c\u1ea7n ki\u1ec3m tra v\u00e0 \u0111\u1ed1i chi\u1ebfu \u0111\u00e1p \u00e1n.<\/li>\n<li>Sinh vi\u00ean chu\u1ea9n b\u1ecb ki\u1ec3m tra gi\u1eefa k\u1ef3 ho\u1eb7c thi k\u1ebft th\u00fac h\u1ecdc ph\u1ea7n.<\/li>\n<li>Ng\u01b0\u1eddi h\u1ecdc c\u1ea7n t\u00e0i li\u1ec7u h\u1ed7 tr\u1ee3 \u00f4n t\u1eadp, \u00f4n thi hi\u1ec7u qu\u1ea3.<\/li>\n<\/ul>\n<p><strong>\ud83d\udd0e T\u1eea KH\u00d3A LI\u00caN QUAN:<\/strong><\/p>\n<ul>\n<li>VNU<\/li>\n<li>\u0110\u1ea1i h\u1ecdc Qu\u1ed1c gia H\u00e0 N\u1ed9i<\/li>\n<li>Nguy\u00ean l\u00fd H\u1ec7 \u0111i\u1ec1u h\u00e0nh VNU<\/li>\n<li>Nguy\u00ean l\u00fd H\u1ec7 \u0111i\u1ec1u h\u00e0nh VNU \u0111\u00e1p \u00e1n<\/li>\n<li>m\u00f4n Nguy\u00ean l\u00fd H\u1ec7 \u0111i\u1ec1u h\u00e0nh VNU<\/li>\n<li>\u0111\u00e1p \u00e1n m\u00f4n Nguy\u00ean l\u00fd H\u1ec7 \u0111i\u1ec1u h\u00e0nh VNU<\/li>\n<li>\u0111\u00e1p \u00e1n Nguy\u00ean l\u00fd H\u1ec7 \u0111i\u1ec1u h\u00e0nh VNU<\/li>\n<li>tr\u1eafc nghi\u1ec7m Nguy\u00ean l\u00fd H\u1ec7 \u0111i\u1ec1u h\u00e0nh VNU<\/li>\n<li>\u0111\u00e1p \u00e1n tr\u1eafc nghi\u1ec7m Nguy\u00ean l\u00fd H\u1ec7 \u0111i\u1ec1u h\u00e0nh VNU<\/li>\n<li>tr\u1eafc nghi\u1ec7m m\u00f4n Nguy\u00ean l\u00fd H\u1ec7 \u0111i\u1ec1u h\u00e0nh VNU<\/li>\n<li>Nguy\u00ean l\u00fd H\u1ec7 \u0111i\u1ec1u h\u00e0nh \u0110\u1ea1i h\u1ecdc Qu\u1ed1c gia H\u00e0 N\u1ed9i<\/li>\n<li>Nguy\u00ean l\u00fd H\u1ec7 \u0111i\u1ec1u h\u00e0nh \u0110\u1ea1i h\u1ecdc Qu\u1ed1c gia H\u00e0 N\u1ed9i \u0111\u00e1p \u00e1n<\/li>\n<li>m\u00f4n Nguy\u00ean l\u00fd H\u1ec7 \u0111i\u1ec1u h\u00e0nh \u0110\u1ea1i h\u1ecdc Qu\u1ed1c gia H\u00e0 N\u1ed9i<\/li>\n<li>\u0111\u00e1p \u00e1n m\u00f4n Nguy\u00ean l\u00fd H\u1ec7 \u0111i\u1ec1u h\u00e0nh \u0110\u1ea1i h\u1ecdc Qu\u1ed1c gia H\u00e0 N\u1ed9i<\/li>\n<li>\u0111\u00e1p \u00e1n Nguy\u00ean l\u00fd H\u1ec7 \u0111i\u1ec1u h\u00e0nh \u0110\u1ea1i h\u1ecdc Qu\u1ed1c gia H\u00e0 N\u1ed9i<\/li>\n<li>tr\u1eafc nghi\u1ec7m Nguy\u00ean l\u00fd H\u1ec7 \u0111i\u1ec1u h\u00e0nh \u0110\u1ea1i h\u1ecdc Qu\u1ed1c gia H\u00e0 N\u1ed9i<\/li>\n<li>\u0111\u00e1p \u00e1n tr\u1eafc nghi\u1ec7m Nguy\u00ean l\u00fd H\u1ec7 \u0111i\u1ec1u h\u00e0nh \u0110\u1ea1i h\u1ecdc Qu\u1ed1c gia H\u00e0 N\u1ed9i<\/li>\n<li>tr\u1eafc nghi\u1ec7m m\u00f4n Nguy\u00ean l\u00fd H\u1ec7 \u0111i\u1ec1u h\u00e0nh \u0110\u1ea1i h\u1ecdc Qu\u1ed1c gia H\u00e0 N\u1ed9i<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\ud83d\udcd8 \u0110\u00e1p \u00e1n tr\u1eafc nghi\u1ec7m Nguy\u00ean l\u00fd H\u1ec7 \u0111i\u1ec1u h\u00e0nh VNU \u2013 \u0110\u1ea1i h\u1ecdc Qu\u1ed1c gia H\u00e0 N\u1ed9i (File DOCX 156 trang).<\/p>\n<p>\u2705 H\u1ed7 tr\u1ee3 luy\u1ec7n t\u1eadp c\u00e2u h\u1ecfi, ki\u1ec3m tra \u0111\u00e1p \u00e1n, h\u1ec7 th\u1ed1ng ki\u1ebfn th\u1ee9c h\u1ec7 \u0111i\u1ec1u h\u00e0nh v\u00e0 h\u1ed7 tr\u1ee3 \u00f4n t\u1eadp, \u00f4n thi hi\u1ec7u qu\u1ea3.<\/p>\n<p>\ud83d\udc41 Xem tr\u01b0\u1edbc kho\u1ea3ng 20\u201330% n\u1ed9i dung c\u1ee7a to\u00e0n b\u1ed9 t\u00e0i li\u1ec7u.<\/p>\n<p>\ud83d\udcb3 Thanh to\u00e1n thu\u1eadn ti\u1ec7n qua VNPAY.<\/p>\n<p>\ud83d\udce5 Nh\u1eadn file DOCX \u0111\u1ea7y \u0111\u1ee7 sau khi thanh to\u00e1n th\u00e0nh c\u00f4ng.<\/p>\n","protected":false},"featured_media":8481,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"product_brand":[314],"product_cat":[134,24,50],"product_tag":[5662,5663,5664,4642,5665,5431,5666,5656,5667,5657,5668,5658,5669,5659,5670,5660,5671,5661],"class_list":["post-8555","product","type-product","status-publish","has-post-thumbnail","product_brand-docx247-com","product_cat-dai-hoc-quoc-gia-ha-noi","product_cat-ky-thuat-cong-nghe","product_cat-dap-an-trac-nghiem","product_tag-dap-an-trac-nghiem-nguyen-ly-he-dieu-hanh-vnu","product_tag-trac-nghiem-mon-nguyen-ly-he-dieu-hanh-vnu","product_tag-nguyen-ly-he-dieu-hanh-dai-hoc-quoc-gia-ha-noi","product_tag-vnu","product_tag-nguyen-ly-he-dieu-hanh-dai-hoc-quoc-gia-ha-noi-dap-an","product_tag-dai-hoc-quoc-gia-ha-noi","product_tag-mon-nguyen-ly-he-dieu-hanh-dai-hoc-quoc-gia-ha-noi","product_tag-nguyen-ly-he-dieu-hanh-vnu","product_tag-dap-an-mon-nguyen-ly-he-dieu-hanh-dai-hoc-quoc-gia-ha-noi","product_tag-nguyen-ly-he-dieu-hanh-vnu-dap-an","product_tag-dap-an-nguyen-ly-he-dieu-hanh-dai-hoc-quoc-gia-ha-noi","product_tag-mon-nguyen-ly-he-dieu-hanh-vnu","product_tag-trac-nghiem-nguyen-ly-he-dieu-hanh-dai-hoc-quoc-gia-ha-noi","product_tag-dap-an-mon-nguyen-ly-he-dieu-hanh-vnu","product_tag-dap-an-trac-nghiem-nguyen-ly-he-dieu-hanh-dai-hoc-quoc-gia-ha-noi","product_tag-dap-an-nguyen-ly-he-dieu-hanh-vnu","product_tag-trac-nghiem-mon-nguyen-ly-he-dieu-hanh-dai-hoc-quoc-gia-ha-noi","product_tag-trac-nghiem-nguyen-ly-he-dieu-hanh-vnu","first","instock","downloadable","virtual","purchasable","product-type-simple"],"acf":{"document_info":{"filetype":"docx","page_count":"156","other_info":[{"title":"Lo\u1ea1i t\u00e0i li\u1ec7u","description":"\u0110\u00e1p \u00e1n tr\u1eafc nghi\u1ec7m"},{"title":"D\u00e0nh cho","description":"Sinh vi\u00ean \u0110\u1ea1i h\u1ecdc Qu\u1ed1c gia H\u00e0 N\u1ed9i (VNU)"},{"title":"\u0110\u1ecbnh d\u1ea1ng t\u00e0i li\u1ec7u","description":"DOCX"},{"title":"S\u1ed1 trang","description":"156 trang"},{"title":"Xem tr\u01b0\u1edbc","description":"Kho\u1ea3ng 20\u201330% n\u1ed9i dung c\u1ee7a to\u00e0n b\u1ed9 t\u00e0i li\u1ec7u"},{"title":"Thanh to\u00e1n","description":"VNPAY"},{"title":"Ngu\u1ed3n","description":"DOCX247.COM"}]},"document_demo":8556,"additional_content":"<h2>Nguy\u00ean l\u00fd H\u1ec7 \u0111i\u1ec1u h\u00e0nh VNU \u2013 N\u1ed9i dung tr\u1ecdng t\u00e2m<\/h2>\n<p>H\u1ec7 \u0111i\u1ec1u h\u00e0nh l\u00e0 l\u1edbp ph\u1ea7n m\u1ec1m \u0111\u00f3ng vai tr\u00f2 trung gian gi\u1eefa ph\u1ea7n c\u1ee9ng m\u00e1y t\u00ednh, ch\u01b0\u01a1ng tr\u00ecnh \u1ee9ng d\u1ee5ng v\u00e0 ng\u01b0\u1eddi s\u1eed d\u1ee5ng.<\/p>\n<p>H\u1ec7 \u0111i\u1ec1u h\u00e0nh ch\u1ecbu tr\u00e1ch nhi\u1ec7m qu\u1ea3n l\u00fd t\u00e0i nguy\u00ean, \u0111i\u1ec1u ph\u1ed1i ho\u1ea1t \u0111\u1ed9ng c\u1ee7a CPU, b\u1ed9 nh\u1edb, thi\u1ebft b\u1ecb v\u00e0o\/ra, h\u1ec7 th\u1ed1ng t\u1ec7p v\u00e0 cung c\u1ea5p m\u00f4i tr\u01b0\u1eddng \u0111\u1ec3 c\u00e1c ch\u01b0\u01a1ng tr\u00ecnh \u0111\u01b0\u1ee3c th\u1ef1c thi.<\/p>\n<p>T\u00e0i li\u1ec7u \u0110\u00e1p \u00e1n tr\u1eafc nghi\u1ec7m Nguy\u00ean l\u00fd H\u1ec7 \u0111i\u1ec1u h\u00e0nh VNU g\u1ed3m 156 trang, h\u1ed7 tr\u1ee3 sinh vi\u00ean luy\u1ec7n t\u1eadp c\u00e2u h\u1ecfi, ki\u1ec3m tra ki\u1ebfn th\u1ee9c, \u0111\u1ed1i chi\u1ebfu \u0111\u00e1p \u00e1n v\u00e0 h\u1ed7 tr\u1ee3 \u00f4n t\u1eadp, \u00f4n thi hi\u1ec7u qu\u1ea3.<\/p>\n<h3>1. T\u1ed5ng quan v\u1ec1 h\u1ec7 \u0111i\u1ec1u h\u00e0nh<\/h3>\n<p>Sinh vi\u00ean c\u1ea7n n\u1eafm:<\/p>\n<ul>\n<li>Kh\u00e1i ni\u1ec7m h\u1ec7 \u0111i\u1ec1u h\u00e0nh.<\/li>\n<li>Vai tr\u00f2 c\u1ee7a h\u1ec7 \u0111i\u1ec1u h\u00e0nh.<\/li>\n<li>Qu\u1ea3n l\u00fd t\u00e0i nguy\u00ean.<\/li>\n<li>Cung c\u1ea5p m\u00f4i tr\u01b0\u1eddng th\u1ef1c thi.<\/li>\n<li>Giao ti\u1ebfp gi\u1eefa ng\u01b0\u1eddi d\u00f9ng v\u00e0 m\u00e1y t\u00ednh.<\/li>\n<li>Quan h\u1ec7 gi\u1eefa ph\u1ea7n c\u1ee9ng v\u00e0 ph\u1ea7n m\u1ec1m.<\/li>\n<li>C\u00e1c th\u00e0nh ph\u1ea7n c\u01a1 b\u1ea3n c\u1ee7a h\u1ec7 \u0111i\u1ec1u h\u00e0nh.<\/li>\n<\/ul>\n<p>H\u1ec7 \u0111i\u1ec1u h\u00e0nh v\u1eeba qu\u1ea3n l\u00fd t\u00e0i nguy\u00ean v\u1eeba cung c\u1ea5p c\u00e1c d\u1ecbch v\u1ee5 c\u1ea7n thi\u1ebft \u0111\u1ec3 ch\u01b0\u01a1ng tr\u00ecnh ho\u1ea1t \u0111\u1ed9ng.<\/p>\n<h3>2. Ch\u1ee9c n\u0103ng c\u1ee7a h\u1ec7 \u0111i\u1ec1u h\u00e0nh<\/h3>\n<p>C\u00e1c ch\u1ee9c n\u0103ng c\u01a1 b\u1ea3n c\u00f3 th\u1ec3 g\u1ed3m:<\/p>\n<ul>\n<li>Qu\u1ea3n l\u00fd CPU.<\/li>\n<li>Qu\u1ea3n l\u00fd ti\u1ebfn tr\u00ecnh.<\/li>\n<li>Qu\u1ea3n l\u00fd b\u1ed9 nh\u1edb.<\/li>\n<li>Qu\u1ea3n l\u00fd thi\u1ebft b\u1ecb.<\/li>\n<li>Qu\u1ea3n l\u00fd t\u1ec7p.<\/li>\n<li>Qu\u1ea3n l\u00fd l\u01b0u tr\u1eef.<\/li>\n<li>B\u1ea3o v\u1ec7 h\u1ec7 th\u1ed1ng.<\/li>\n<li>Cung c\u1ea5p giao di\u1ec7n ng\u01b0\u1eddi d\u00f9ng.<\/li>\n<li>Qu\u1ea3n l\u00fd t\u00e0i nguy\u00ean d\u00f9ng chung.<\/li>\n<\/ul>\n<h3>3. C\u00e1c lo\u1ea1i h\u1ec7 \u0111i\u1ec1u h\u00e0nh<\/h3>\n<p>Sinh vi\u00ean c\u1ea7n ph\u00e2n bi\u1ec7t:<\/p>\n<ul>\n<li>H\u1ec7 \u0111i\u1ec1u h\u00e0nh x\u1eed l\u00fd theo l\u00f4.<\/li>\n<li>H\u1ec7 \u0111i\u1ec1u h\u00e0nh \u0111a ch\u01b0\u01a1ng.<\/li>\n<li>H\u1ec7 \u0111i\u1ec1u h\u00e0nh chia s\u1ebb th\u1eddi gian.<\/li>\n<li>H\u1ec7 \u0111i\u1ec1u h\u00e0nh \u0111a nhi\u1ec7m.<\/li>\n<li>H\u1ec7 \u0111i\u1ec1u h\u00e0nh \u0111a x\u1eed l\u00fd.<\/li>\n<li>H\u1ec7 \u0111i\u1ec1u h\u00e0nh th\u1eddi gian th\u1ef1c.<\/li>\n<li>H\u1ec7 \u0111i\u1ec1u h\u00e0nh ph\u00e2n t\u00e1n.<\/li>\n<li>H\u1ec7 \u0111i\u1ec1u h\u00e0nh m\u1ea1ng.<\/li>\n<li>H\u1ec7 \u0111i\u1ec1u h\u00e0nh cho thi\u1ebft b\u1ecb di \u0111\u1ed9ng.<\/li>\n<\/ul>\n<h3>4. C\u1ea5u tr\u00fac h\u1ec7 \u0111i\u1ec1u h\u00e0nh<\/h3>\n<p>C\u00e1c m\u00f4 h\u00ecnh c\u00f3 th\u1ec3 g\u1ed3m:<\/p>\n<ul>\n<li>C\u1ea5u tr\u00fac \u0111\u01a1n kh\u1ed1i.<\/li>\n<li>C\u1ea5u tr\u00fac ph\u00e2n l\u1edbp.<\/li>\n<li>Microkernel.<\/li>\n<li>Module.<\/li>\n<li>H\u1ec7 th\u1ed1ng lai.<\/li>\n<li>M\u00e1y \u1ea3o.<\/li>\n<\/ul>\n<p>Sinh vi\u00ean c\u1ea7n hi\u1ec3u \u01b0u \u0111i\u1ec3m v\u00e0 h\u1ea1n ch\u1ebf c\u01a1 b\u1ea3n c\u1ee7a t\u1eebng c\u00e1ch t\u1ed5 ch\u1ee9c.<\/p>\n<h3>5. Kernel<\/h3>\n<p>Kernel l\u00e0 th\u00e0nh ph\u1ea7n trung t\u00e2m c\u1ee7a h\u1ec7 \u0111i\u1ec1u h\u00e0nh.<\/p>\n<p>C\u00e1c n\u1ed9i dung c\u1ea7n ch\u00fa \u00fd:<\/p>\n<ul>\n<li>Ch\u1ebf \u0111\u1ed9 kernel.<\/li>\n<li>Ch\u1ebf \u0111\u1ed9 ng\u01b0\u1eddi d\u00f9ng.<\/li>\n<li>Qu\u1ea3n l\u00fd t\u00e0i nguy\u00ean.<\/li>\n<li>X\u1eed l\u00fd ng\u1eaft.<\/li>\n<li>Qu\u1ea3n l\u00fd ti\u1ebfn tr\u00ecnh.<\/li>\n<li>Qu\u1ea3n l\u00fd b\u1ed9 nh\u1edb.<\/li>\n<li>\u0110i\u1ec1u khi\u1ec3n thi\u1ebft b\u1ecb.<\/li>\n<\/ul>\n<h3>6. System Call<\/h3>\n<p>System call cho ph\u00e9p ch\u01b0\u01a1ng tr\u00ecnh ng\u01b0\u1eddi d\u00f9ng y\u00eau c\u1ea7u d\u1ecbch v\u1ee5 t\u1eeb h\u1ec7 \u0111i\u1ec1u h\u00e0nh.<\/p>\n<p>C\u00e1c nh\u00f3m system call c\u00f3 th\u1ec3 li\u00ean quan \u0111\u1ebfn:<\/p>\n<ul>\n<li>\u0110i\u1ec1u khi\u1ec3n ti\u1ebfn tr\u00ecnh.<\/li>\n<li>Qu\u1ea3n l\u00fd t\u1ec7p.<\/li>\n<li>Qu\u1ea3n l\u00fd thi\u1ebft b\u1ecb.<\/li>\n<li>Th\u00f4ng tin h\u1ec7 th\u1ed1ng.<\/li>\n<li>Giao ti\u1ebfp.<\/li>\n<li>B\u1ea3o v\u1ec7.<\/li>\n<\/ul>\n<p>Sinh vi\u00ean c\u1ea7n ph\u00e2n bi\u1ec7t system call v\u1edbi l\u1eddi g\u1ecdi h\u00e0m th\u00f4ng th\u01b0\u1eddng c\u1ee7a ch\u01b0\u01a1ng tr\u00ecnh.<\/p>\n<h3>7. Kh\u00e1i ni\u1ec7m ti\u1ebfn tr\u00ecnh<\/h3>\n<p>Ti\u1ebfn tr\u00ecnh l\u00e0 m\u1ed9t ch\u01b0\u01a1ng tr\u00ecnh \u0111ang \u0111\u01b0\u1ee3c th\u1ef1c thi.<\/p>\n<p>Sinh vi\u00ean c\u1ea7n n\u1eafm:<\/p>\n<ul>\n<li>Program v\u00e0 process.<\/li>\n<li>Tr\u1ea1ng th\u00e1i ti\u1ebfn tr\u00ecnh.<\/li>\n<li>B\u1ed9 \u0111\u1ebfm ch\u01b0\u01a1ng tr\u00ecnh.<\/li>\n<li>Thanh ghi.<\/li>\n<li>Stack.<\/li>\n<li>Heap.<\/li>\n<li>Kh\u00f4ng gian \u0111\u1ecba ch\u1ec9.<\/li>\n<li>T\u00e0i nguy\u00ean c\u1ee7a ti\u1ebfn tr\u00ecnh.<\/li>\n<\/ul>\n<h3>8. Tr\u1ea1ng th\u00e1i ti\u1ebfn tr\u00ecnh<\/h3>\n<p>C\u00e1c tr\u1ea1ng th\u00e1i th\u01b0\u1eddng g\u1eb7p:<\/p>\n<ul>\n<li>New.<\/li>\n<li>Ready.<\/li>\n<li>Running.<\/li>\n<li>Waiting ho\u1eb7c Blocked.<\/li>\n<li>Terminated.<\/li>\n<\/ul>\n<p>Sinh vi\u00ean c\u1ea7n hi\u1ec3u nguy\u00ean nh\u00e2n l\u00e0m ti\u1ebfn tr\u00ecnh chuy\u1ec3n t\u1eeb tr\u1ea1ng th\u00e1i n\u00e0y sang tr\u1ea1ng th\u00e1i kh\u00e1c.<\/p>\n<h3>9. Process Control Block<\/h3>\n<p>PCB l\u01b0u tr\u1eef th\u00f4ng tin c\u1ea7n thi\u1ebft \u0111\u1ec3 h\u1ec7 \u0111i\u1ec1u h\u00e0nh qu\u1ea3n l\u00fd m\u1ed9t ti\u1ebfn tr\u00ecnh.<\/p>\n<p>Th\u00f4ng tin c\u00f3 th\u1ec3 g\u1ed3m:<\/p>\n<ul>\n<li>Process ID.<\/li>\n<li>Tr\u1ea1ng th\u00e1i.<\/li>\n<li>Program counter.<\/li>\n<li>Thanh ghi CPU.<\/li>\n<li>Th\u00f4ng tin l\u1eadp l\u1ecbch.<\/li>\n<li>Th\u00f4ng tin b\u1ed9 nh\u1edb.<\/li>\n<li>Th\u00f4ng tin I\/O.<\/li>\n<li>Th\u00f4ng tin t\u00e0i nguy\u00ean.<\/li>\n<\/ul>\n<h3>10. Chuy\u1ec3n \u0111\u1ed5i ng\u1eef c\u1ea3nh<\/h3>\n<p>Context switch x\u1ea3y ra khi CPU chuy\u1ec3n t\u1eeb th\u1ef1c thi m\u1ed9t ti\u1ebfn tr\u00ecnh ho\u1eb7c lu\u1ed3ng sang m\u1ed9t ti\u1ebfn tr\u00ecnh ho\u1eb7c lu\u1ed3ng kh\u00e1c.<\/p>\n<p>Sinh vi\u00ean c\u1ea7n hi\u1ec3u:<\/p>\n<ul>\n<li>L\u01b0u tr\u1ea1ng th\u00e1i.<\/li>\n<li>Kh\u00f4i ph\u1ee5c tr\u1ea1ng th\u00e1i.<\/li>\n<li>Chi ph\u00ed chuy\u1ec3n \u0111\u1ed5i.<\/li>\n<li>Quan h\u1ec7 v\u1edbi l\u1eadp l\u1ecbch.<\/li>\n<li>Ng\u1eaft v\u00e0 chuy\u1ec3n \u0111\u1ed5i ng\u1eef c\u1ea3nh.<\/li>\n<\/ul>\n<p>Context switch t\u1ea1o chi ph\u00ed qu\u1ea3n l\u00fd v\u00ec trong th\u1eddi gian \u0111\u00f3 CPU kh\u00f4ng tr\u1ef1c ti\u1ebfp th\u1ef1c hi\u1ec7n c\u00f4ng vi\u1ec7c h\u1eefu \u00edch c\u1ee7a ti\u1ebfn tr\u00ecnh ng\u01b0\u1eddi d\u00f9ng.<\/p>\n<h3>11. Lu\u1ed3ng \u2013 Thread<\/h3>\n<p>Thread l\u00e0 \u0111\u01a1n v\u1ecb th\u1ef1c thi b\u00ean trong ti\u1ebfn tr\u00ecnh.<\/p>\n<p>Sinh vi\u00ean c\u1ea7n ph\u00e2n bi\u1ec7t:<\/p>\n<ul>\n<li>Process.<\/li>\n<li>Thread.<\/li>\n<li>Single-thread.<\/li>\n<li>Multithread.<\/li>\n<li>T\u00e0i nguy\u00ean d\u00f9ng chung.<\/li>\n<li>Stack ri\u00eang c\u1ee7a t\u1eebng thread.<\/li>\n<li>L\u1ee3i \u00edch c\u1ee7a \u0111a lu\u1ed3ng.<\/li>\n<\/ul>\n<h3>12. \u0110a lu\u1ed3ng<\/h3>\n<p>C\u00e1c l\u1ee3i \u00edch c\u00f3 th\u1ec3 g\u1ed3m:<\/p>\n<ul>\n<li>T\u0103ng kh\u1ea3 n\u0103ng \u0111\u00e1p \u1ee9ng.<\/li>\n<li>Chia s\u1ebb t\u00e0i nguy\u00ean.<\/li>\n<li>T\u1eadn d\u1ee5ng h\u1ec7 th\u1ed1ng nhi\u1ec1u l\u00f5i.<\/li>\n<li>H\u1ed7 tr\u1ee3 th\u1ef1c hi\u1ec7n nhi\u1ec1u c\u00f4ng vi\u1ec7c \u0111\u1ed3ng th\u1eddi.<\/li>\n<li>Gi\u1ea3m chi ph\u00ed so v\u1edbi t\u1ea1o nhi\u1ec1u ti\u1ebfn tr\u00ecnh trong m\u1ed9t s\u1ed1 tr\u01b0\u1eddng h\u1ee3p.<\/li>\n<\/ul>\n<h3>13. L\u1eadp l\u1ecbch CPU<\/h3>\n<p>CPU scheduling quy\u1ebft \u0111\u1ecbnh ti\u1ebfn tr\u00ecnh n\u00e0o trong h\u00e0ng \u0111\u1ee3i s\u1eb5n s\u00e0ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng CPU.<\/p>\n<p>C\u00e1c ti\u00eau ch\u00ed c\u00f3 th\u1ec3 g\u1ed3m:<\/p>\n<ul>\n<li>CPU utilization.<\/li>\n<li>Throughput.<\/li>\n<li>Turnaround time.<\/li>\n<li>Waiting time.<\/li>\n<li>Response time.<\/li>\n<li>Fairness.<\/li>\n<\/ul>\n<h3>14. First Come First Served \u2013 FCFS<\/h3>\n<p>FCFS th\u1ef1c hi\u1ec7n ti\u1ebfn tr\u00ecnh theo th\u1ee9 t\u1ef1 \u0111\u1ebfn.<\/p>\n<p>Sinh vi\u00ean c\u1ea7n hi\u1ec3u:<\/p>\n<ul>\n<li>Nguy\u00ean t\u1eafc ho\u1ea1t \u0111\u1ed9ng.<\/li>\n<li>H\u00e0ng \u0111\u1ee3i.<\/li>\n<li>Waiting time.<\/li>\n<li>Turnaround time.<\/li>\n<li>\u01afu \u0111i\u1ec3m \u0111\u01a1n gi\u1ea3n.<\/li>\n<li>Hi\u1ec7n t\u01b0\u1ee3ng convoy effect.<\/li>\n<\/ul>\n<h3>15. Shortest Job First \u2013 SJF<\/h3>\n<p>SJF \u01b0u ti\u00ean ti\u1ebfn tr\u00ecnh c\u00f3 th\u1eddi gian CPU burst nh\u1ecf h\u01a1n.<\/p>\n<p>C\u00e1c n\u1ed9i dung c\u1ea7n ch\u00fa \u00fd:<\/p>\n<ul>\n<li>SJF kh\u00f4ng \u01b0u ti\u00ean.<\/li>\n<li>Phi\u00ean b\u1ea3n c\u00f3 \u01b0u ti\u00ean.<\/li>\n<li>Shortest Remaining Time.<\/li>\n<li>Waiting time.<\/li>\n<li>Kh\u00f3 kh\u0103n trong d\u1ef1 \u0111o\u00e1n CPU burst.<\/li>\n<\/ul>\n<h3>16. Priority Scheduling<\/h3>\n<p>Priority Scheduling l\u1ef1a ch\u1ecdn ti\u1ebfn tr\u00ecnh d\u1ef1a tr\u00ean m\u1ee9c \u01b0u ti\u00ean.<\/p>\n<p>Sinh vi\u00ean c\u1ea7n n\u1eafm:<\/p>\n<ul>\n<li>Priority.<\/li>\n<li>Preemptive.<\/li>\n<li>Non-preemptive.<\/li>\n<li>Starvation.<\/li>\n<li>Aging.<\/li>\n<\/ul>\n<p>Aging c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 gi\u1ea3m t\u00ecnh tr\u1ea1ng ti\u1ebfn tr\u00ecnh \u01b0u ti\u00ean th\u1ea5p ph\u1ea3i ch\u1edd qu\u00e1 l\u00e2u.<\/p>\n<h3>17. Round Robin<\/h3>\n<p>Round Robin s\u1eed d\u1ee5ng time quantum \u0111\u1ec3 chia th\u1eddi gian CPU gi\u1eefa c\u00e1c ti\u1ebfn tr\u00ecnh.<\/p>\n<p>C\u00e1c n\u1ed9i dung c\u1ea7n ch\u00fa \u00fd:<\/p>\n<ul>\n<li>Time quantum.<\/li>\n<li>Ready queue.<\/li>\n<li>Preemption.<\/li>\n<li>Response time.<\/li>\n<li>\u1ea2nh h\u01b0\u1edfng c\u1ee7a k\u00edch th\u01b0\u1edbc quantum.<\/li>\n<\/ul>\n<p>Quantum qu\u00e1 l\u1edbn c\u00f3 th\u1ec3 khi\u1ebfn Round Robin g\u1ea7n v\u1edbi FCFS, c\u00f2n quantum qu\u00e1 nh\u1ecf l\u00e0m t\u0103ng chi ph\u00ed context switch.<\/p>\n<h3>18. \u0110\u1ed3ng b\u1ed9 h\u00f3a ti\u1ebfn tr\u00ecnh<\/h3>\n<p>Khi nhi\u1ec1u ti\u1ebfn tr\u00ecnh ho\u1eb7c lu\u1ed3ng truy c\u1eadp d\u1eef li\u1ec7u d\u00f9ng chung, c\u1ea7n c\u01a1 ch\u1ebf \u0111\u1ed3ng b\u1ed9 \u0111\u1ec3 duy tr\u00ec t\u00ednh \u0111\u00fang \u0111\u1eafn.<\/p>\n<p>Sinh vi\u00ean c\u1ea7n n\u1eafm:<\/p>\n<ul>\n<li>Shared data.<\/li>\n<li>Race condition.<\/li>\n<li>Critical section.<\/li>\n<li>Mutual exclusion.<\/li>\n<li>Synchronization.<\/li>\n<\/ul>\n<h3>19. Critical Section<\/h3>\n<p>Critical section l\u00e0 ph\u1ea7n m\u00e3 truy c\u1eadp t\u00e0i nguy\u00ean ho\u1eb7c d\u1eef li\u1ec7u d\u00f9ng chung.<\/p>\n<p>M\u1ed9t gi\u1ea3i ph\u00e1p ph\u00f9 h\u1ee3p th\u01b0\u1eddng c\u1ea7n xem x\u00e9t:<\/p>\n<ul>\n<li>Mutual exclusion.<\/li>\n<li>Progress.<\/li>\n<li>Bounded waiting.<\/li>\n<\/ul>\n<h3>20. Mutex<\/h3>\n<p>Mutex \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 ki\u1ec3m so\u00e1t quy\u1ec1n truy c\u1eadp \u0111\u1ed9c quy\u1ec1n v\u00e0o t\u00e0i nguy\u00ean d\u00f9ng chung.<\/p>\n<p>Sinh vi\u00ean c\u1ea7n hi\u1ec3u:<\/p>\n<ul>\n<li>Lock.<\/li>\n<li>Unlock.<\/li>\n<li>Mutual exclusion.<\/li>\n<li>Ch\u1ee7 s\u1edf h\u1eefu kh\u00f3a.<\/li>\n<li>Tranh ch\u1ea5p t\u00e0i nguy\u00ean.<\/li>\n<\/ul>\n<h3>21. Semaphore<\/h3>\n<p>Semaphore l\u00e0 m\u1ed9t c\u01a1 ch\u1ebf \u0111\u1ed3ng b\u1ed9 h\u00f3a.<\/p>\n<p>C\u00e1c n\u1ed9i dung c\u1ea7n n\u1eafm:<\/p>\n<ul>\n<li>Binary semaphore.<\/li>\n<li>Counting semaphore.<\/li>\n<li>Wait.<\/li>\n<li>Signal.<\/li>\n<li>\u0110\u1ed3ng b\u1ed9 ti\u1ebfn tr\u00ecnh.<\/li>\n<li>Qu\u1ea3n l\u00fd t\u00e0i nguy\u00ean c\u00f3 s\u1ed1 l\u01b0\u1ee3ng gi\u1edbi h\u1ea1n.<\/li>\n<\/ul>\n<p>C\u1ea7n ph\u00e2n bi\u1ec7t semaphore v\u1edbi mutex trong c\u00e1ch s\u1eed d\u1ee5ng v\u00e0 \u00fd ngh\u0129a.<\/p>\n<h3>22. C\u00e1c b\u00e0i to\u00e1n \u0111\u1ed3ng b\u1ed9 kinh \u0111i\u1ec3n<\/h3>\n<p>C\u00e1c b\u00e0i to\u00e1n th\u01b0\u1eddng d\u00f9ng \u0111\u1ec3 minh h\u1ecda c\u00f3 th\u1ec3 g\u1ed3m:<\/p>\n<ul>\n<li>Producer \u2013 Consumer.<\/li>\n<li>Readers \u2013 Writers.<\/li>\n<li>Dining Philosophers.<\/li>\n<\/ul>\n<p>Sinh vi\u00ean n\u00ean hi\u1ec3u v\u1ea5n \u0111\u1ec1 \u0111\u1ed3ng b\u1ed9 c\u1ea7n gi\u1ea3i quy\u1ebft thay v\u00ec ch\u1ec9 h\u1ecdc thu\u1ed9c m\u00e3 gi\u1ea3.<\/p>\n<h3>23. Deadlock<\/h3>\n<p>Deadlock l\u00e0 tr\u1ea1ng th\u00e1i m\u1ed9t nh\u00f3m ti\u1ebfn tr\u00ecnh ch\u1edd l\u1eabn nhau v\u00e0 kh\u00f4ng th\u1ec3 ti\u1ebfp t\u1ee5c th\u1ef1c thi.<\/p>\n<p>C\u00e1c \u0111i\u1ec1u ki\u1ec7n th\u01b0\u1eddng \u0111\u01b0\u1ee3c xem x\u00e9t:<\/p>\n<ul>\n<li>Mutual exclusion.<\/li>\n<li>Hold and wait.<\/li>\n<li>No preemption.<\/li>\n<li>Circular wait.<\/li>\n<\/ul>\n<h3>24. X\u1eed l\u00fd Deadlock<\/h3>\n<p>C\u00e1c chi\u1ebfn l\u01b0\u1ee3c c\u00f3 th\u1ec3 g\u1ed3m:<\/p>\n<ul>\n<li>Deadlock prevention.<\/li>\n<li>Deadlock avoidance.<\/li>\n<li>Deadlock detection.<\/li>\n<li>Recovery.<\/li>\n<li>B\u1ecf qua deadlock trong m\u1ed9t s\u1ed1 h\u1ec7 th\u1ed1ng.<\/li>\n<\/ul>\n<p>Sinh vi\u00ean c\u1ea7n ph\u00e2n bi\u1ec7t ph\u00f2ng ng\u1eeba, tr\u00e1nh v\u00e0 ph\u00e1t hi\u1ec7n deadlock.<\/p>\n<h3>25. Thu\u1eadt to\u00e1n Banker<\/h3>\n<p>Banker&#x27;s Algorithm \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong nghi\u00ean c\u1ee9u tr\u00e1nh deadlock.<\/p>\n<p>C\u00e1c kh\u00e1i ni\u1ec7m c\u1ea7n hi\u1ec3u:<\/p>\n<ul>\n<li>Available.<\/li>\n<li>Maximum.<\/li>\n<li>Allocation.<\/li>\n<li>Need.<\/li>\n<li>Safe state.<\/li>\n<li>Safe sequence.<\/li>\n<\/ul>\n<p>Ng\u01b0\u1eddi h\u1ecdc c\u1ea7n bi\u1ebft c\u00e1ch x\u00e1c \u0111\u1ecbnh h\u1ec7 th\u1ed1ng c\u00f3 \u0111ang \u1edf tr\u1ea1ng th\u00e1i an to\u00e0n hay kh\u00f4ng.<\/p>\n<h3>26. Qu\u1ea3n l\u00fd b\u1ed9 nh\u1edb<\/h3>\n<p>H\u1ec7 \u0111i\u1ec1u h\u00e0nh ch\u1ecbu tr\u00e1ch nhi\u1ec7m qu\u1ea3n l\u00fd vi\u1ec7c s\u1eed d\u1ee5ng b\u1ed9 nh\u1edb ch\u00ednh.<\/p>\n<p>C\u00e1c n\u1ed9i dung c\u01a1 b\u1ea3n:<\/p>\n<ul>\n<li>Kh\u00f4ng gian \u0111\u1ecba ch\u1ec9.<\/li>\n<li>\u0110\u1ecba ch\u1ec9 logic.<\/li>\n<li>\u0110\u1ecba ch\u1ec9 v\u1eadt l\u00fd.<\/li>\n<li>Ph\u00e2n b\u1ed5 b\u1ed9 nh\u1edb.<\/li>\n<li>Thu h\u1ed3i b\u1ed9 nh\u1edb.<\/li>\n<li>B\u1ea3o v\u1ec7 v\u00f9ng nh\u1edb.<\/li>\n<li>Chia s\u1ebb b\u1ed9 nh\u1edb.<\/li>\n<\/ul>\n<h3>27. Ph\u00e2n v\u00f9ng b\u1ed9 nh\u1edb<\/h3>\n<p>C\u00e1c ph\u01b0\u01a1ng ph\u00e1p c\u00f3 th\u1ec3 g\u1ed3m:<\/p>\n<ul>\n<li>Fixed partitioning.<\/li>\n<li>Variable partitioning.<\/li>\n<li>First Fit.<\/li>\n<li>Best Fit.<\/li>\n<li>Worst Fit.<\/li>\n<li>Ph\u00e2n m\u1ea3nh trong.<\/li>\n<li>Ph\u00e2n m\u1ea3nh ngo\u00e0i.<\/li>\n<\/ul>\n<p>Sinh vi\u00ean c\u1ea7n hi\u1ec3u nguy\u00ean nh\u00e2n h\u00ecnh th\u00e0nh fragmentation v\u00e0 t\u00e1c \u0111\u1ed9ng c\u1ee7a n\u00f3.<\/p>\n<h3>28. Paging<\/h3>\n<p>Paging chia kh\u00f4ng gian \u0111\u1ecba ch\u1ec9 v\u00e0 b\u1ed9 nh\u1edb v\u1eadt l\u00fd th\u00e0nh c\u00e1c \u0111\u01a1n v\u1ecb c\u00f3 k\u00edch th\u01b0\u1edbc c\u1ed1 \u0111\u1ecbnh.<\/p>\n<p>C\u00e1c kh\u00e1i ni\u1ec7m c\u1ea7n n\u1eafm:<\/p>\n<ul>\n<li>Page.<\/li>\n<li>Frame.<\/li>\n<li>Page table.<\/li>\n<li>Page number.<\/li>\n<li>Offset.<\/li>\n<li>Address translation.<\/li>\n<\/ul>\n<p>Paging gi\u00fap gi\u1ea3m m\u1ed9t s\u1ed1 v\u1ea5n \u0111\u1ec1 c\u1ee7a ph\u00e2n m\u1ea3nh ngo\u00e0i nh\u01b0ng v\u1eabn ph\u00e1t sinh chi ph\u00ed qu\u1ea3n l\u00fd b\u1ea3ng trang.<\/p>\n<h3>29. Segmentation<\/h3>\n<p>Segmentation chia kh\u00f4ng gian \u0111\u1ecba ch\u1ec9 theo c\u00e1c \u0111\u01a1n v\u1ecb logic.<\/p>\n<p>Sinh vi\u00ean c\u1ea7n ch\u00fa \u00fd:<\/p>\n<ul>\n<li>Segment.<\/li>\n<li>Segment table.<\/li>\n<li>Base.<\/li>\n<li>Limit.<\/li>\n<li>Kh\u00f4ng gian \u0111\u1ecba ch\u1ec9 logic.<\/li>\n<li>B\u1ea3o v\u1ec7 v\u00e0 chia s\u1ebb.<\/li>\n<\/ul>\n<h3>30. B\u1ed9 nh\u1edb \u1ea3o<\/h3>\n<p>Virtual memory cho ph\u00e9p ch\u01b0\u01a1ng tr\u00ecnh s\u1eed d\u1ee5ng kh\u00f4ng gian \u0111\u1ecba ch\u1ec9 c\u00f3 th\u1ec3 l\u1edbn h\u01a1n l\u01b0\u1ee3ng b\u1ed9 nh\u1edb v\u1eadt l\u00fd hi\u1ec7n c\u00f3.<\/p>\n<p>C\u00e1c n\u1ed9i dung c\u1ea7n hi\u1ec3u:<\/p>\n<ul>\n<li>Demand paging.<\/li>\n<li>Page fault.<\/li>\n<li>Backing store.<\/li>\n<li>Page replacement.<\/li>\n<li>Working set.<\/li>\n<li>Thrashing.<\/li>\n<\/ul>\n<h3>31. Demand Paging<\/h3>\n<p>Trong demand paging, trang ch\u1ec9 \u0111\u01b0\u1ee3c \u0111\u01b0a v\u00e0o b\u1ed9 nh\u1edb khi c\u1ea7n thi\u1ebft.<\/p>\n<p>Khi trang c\u1ea7n truy c\u1eadp ch\u01b0a c\u00f3 trong b\u1ed9 nh\u1edb, h\u1ec7 th\u1ed1ng c\u00f3 th\u1ec3 ph\u00e1t sinh page fault.<\/p>\n<p>Sinh vi\u00ean c\u1ea7n hi\u1ec3u quy tr\u00ecnh:<\/p>\n<ul>\n<li>Ph\u00e1t hi\u1ec7n page fault.<\/li>\n<li>Ki\u1ec3m tra t\u00ednh h\u1ee3p l\u1ec7.<\/li>\n<li>T\u00ecm frame.<\/li>\n<li>\u0110\u1ecdc trang t\u1eeb l\u01b0u tr\u1eef.<\/li>\n<li>C\u1eadp nh\u1eadt page table.<\/li>\n<li>Ti\u1ebfp t\u1ee5c th\u1ef1c thi.<\/li>\n<\/ul>\n<h3>32. Thu\u1eadt to\u00e1n thay th\u1ebf trang FIFO<\/h3>\n<p>FIFO thay th\u1ebf trang \u0111\u00e3 \u1edf trong b\u1ed9 nh\u1edb l\u00e2u nh\u1ea5t.<\/p>\n<p>Sinh vi\u00ean c\u1ea7n ch\u00fa \u00fd:<\/p>\n<ul>\n<li>Page fault.<\/li>\n<li>Th\u1ee9 t\u1ef1 trang.<\/li>\n<li>S\u1ed1 frame.<\/li>\n<li>Belady&#x27;s anomaly.<\/li>\n<\/ul>\n<p>Kh\u00f4ng ph\u1ea3i t\u0103ng s\u1ed1 frame lu\u00f4n l\u00e0m gi\u1ea3m s\u1ed1 page fault v\u1edbi FIFO.<\/p>\n<h3>33. Thu\u1eadt to\u00e1n thay th\u1ebf trang Optimal<\/h3>\n<p>Optimal thay th\u1ebf trang c\u00f3 l\u1ea7n s\u1eed d\u1ee5ng ti\u1ebfp theo xa nh\u1ea5t trong t\u01b0\u01a1ng lai.<\/p>\n<p>\u0110\u00e2y th\u01b0\u1eddng \u0111\u01b0\u1ee3c d\u00f9ng l\u00e0m c\u01a1 s\u1edf so s\u00e1nh v\u00ec cho k\u1ebft qu\u1ea3 l\u00fd t\u01b0\u1edfng, nh\u01b0ng kh\u00f3 \u00e1p d\u1ee5ng tr\u1ef1c ti\u1ebfp trong th\u1ef1c t\u1ebf do h\u1ec7 th\u1ed1ng kh\u00f4ng bi\u1ebft ch\u00ednh x\u00e1c t\u01b0\u01a1ng lai.<\/p>\n<h3>34. Thu\u1eadt to\u00e1n LRU<\/h3>\n<p>LRU thay th\u1ebf trang l\u00e2u nh\u1ea5t ch\u01b0a \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng.<\/p>\n<p>Sinh vi\u00ean c\u1ea7n hi\u1ec3u:<\/p>\n<ul>\n<li>Recent use.<\/li>\n<li>Page reference.<\/li>\n<li>Chi ph\u00ed theo d\u00f5i.<\/li>\n<li>Quan h\u1ec7 gi\u1eefa LRU v\u00e0 locality.<\/li>\n<\/ul>\n<h3>35. Thrashing<\/h3>\n<p>Thrashing x\u1ea3y ra khi h\u1ec7 th\u1ed1ng d\u00e0nh qu\u00e1 nhi\u1ec1u th\u1eddi gian x\u1eed l\u00fd page fault v\u00e0 trao \u0111\u1ed5i trang thay v\u00ec th\u1ef1c thi ch\u01b0\u01a1ng tr\u00ecnh.<\/p>\n<p>C\u00e1c nguy\u00ean nh\u00e2n c\u00f3 th\u1ec3 li\u00ean quan \u0111\u1ebfn:<\/p>\n<ul>\n<li>Thi\u1ebfu frame.<\/li>\n<li>Qu\u00e1 nhi\u1ec1u ti\u1ebfn tr\u00ecnh.<\/li>\n<li>Working set kh\u00f4ng \u0111\u01b0\u1ee3c \u0111\u00e1p \u1ee9ng.<\/li>\n<li>T\u1ea7n su\u1ea5t page fault cao.<\/li>\n<\/ul>\n<h3>36. H\u1ec7 th\u1ed1ng t\u1ec7p<\/h3>\n<p>File system t\u1ed5 ch\u1ee9c v\u00e0 qu\u1ea3n l\u00fd d\u1eef li\u1ec7u tr\u00ean thi\u1ebft b\u1ecb l\u01b0u tr\u1eef.<\/p>\n<p>Sinh vi\u00ean c\u1ea7n n\u1eafm:<\/p>\n<ul>\n<li>File.<\/li>\n<li>Directory.<\/li>\n<li>Metadata.<\/li>\n<li>File name.<\/li>\n<li>File type.<\/li>\n<li>File size.<\/li>\n<li>Permissions.<\/li>\n<li>Storage location.<\/li>\n<\/ul>\n<h3>37. C\u00e1c thao t\u00e1c tr\u00ean t\u1ec7p<\/h3>\n<p>C\u00e1c thao t\u00e1c c\u00f3 th\u1ec3 g\u1ed3m:<\/p>\n<ul>\n<li>Create.<\/li>\n<li>Open.<\/li>\n<li>Read.<\/li>\n<li>Write.<\/li>\n<li>Append.<\/li>\n<li>Seek.<\/li>\n<li>Close.<\/li>\n<li>Delete.<\/li>\n<li>Rename.<\/li>\n<\/ul>\n<p>H\u1ec7 \u0111i\u1ec1u h\u00e0nh cung c\u1ea5p giao di\u1ec7n \u0111\u1ec3 ch\u01b0\u01a1ng tr\u00ecnh th\u1ef1c hi\u1ec7n c\u00e1c thao t\u00e1c n\u00e0y.<\/p>\n<h3>38. C\u1ea5u tr\u00fac th\u01b0 m\u1ee5c<\/h3>\n<p>C\u00e1c m\u00f4 h\u00ecnh c\u00f3 th\u1ec3 g\u1ed3m:<\/p>\n<ul>\n<li>Single-level directory.<\/li>\n<li>Two-level directory.<\/li>\n<li>Tree-structured directory.<\/li>\n<li>Graph directory.<\/li>\n<\/ul>\n<p>Sinh vi\u00ean c\u1ea7n hi\u1ec3u c\u00e1ch t\u1ed5 ch\u1ee9c t\u1ec7p v\u00e0 \u0111\u01b0\u1eddng d\u1eabn trong h\u1ec7 th\u1ed1ng.<\/p>\n<h3>39. Ph\u00e2n b\u1ed5 kh\u00f4ng gian t\u1ec7p<\/h3>\n<p>C\u00e1c ph\u01b0\u01a1ng ph\u00e1p c\u00f3 th\u1ec3 g\u1ed3m:<\/p>\n<ul>\n<li>Contiguous allocation.<\/li>\n<li>Linked allocation.<\/li>\n<li>Indexed allocation.<\/li>\n<\/ul>\n<p>M\u1ed7i ph\u01b0\u01a1ng ph\u00e1p c\u00f3 \u01b0u \u0111i\u1ec3m v\u00e0 h\u1ea1n ch\u1ebf v\u1ec1 t\u1ed1c \u0111\u1ed9 truy c\u1eadp, ph\u00e2n m\u1ea3nh v\u00e0 kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng t\u1ec7p.<\/p>\n<h3>40. Qu\u1ea3n l\u00fd kh\u00f4ng gian tr\u1ed1ng<\/h3>\n<p>C\u00e1c ph\u01b0\u01a1ng ph\u00e1p c\u00f3 th\u1ec3 g\u1ed3m:<\/p>\n<ul>\n<li>Bit map.<\/li>\n<li>Linked list.<\/li>\n<li>Grouping.<\/li>\n<li>Counting.<\/li>\n<\/ul>\n<p>M\u1ee5c ti\u00eau l\u00e0 x\u00e1c \u0111\u1ecbnh v\u00e0 qu\u1ea3n l\u00fd c\u00e1c block ch\u01b0a \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng tr\u00ean thi\u1ebft b\u1ecb l\u01b0u tr\u1eef.<\/p>\n<h3>41. Qu\u1ea3n l\u00fd thi\u1ebft b\u1ecb v\u00e0o\/ra<\/h3>\n<p>C\u00e1c n\u1ed9i dung c\u1ea7n hi\u1ec3u:<\/p>\n<ul>\n<li>I\/O device.<\/li>\n<li>Device controller.<\/li>\n<li>Device driver.<\/li>\n<li>Interrupt.<\/li>\n<li>Buffer.<\/li>\n<li>Cache.<\/li>\n<li>Spooling.<\/li>\n<\/ul>\n<p>H\u1ec7 \u0111i\u1ec1u h\u00e0nh cung c\u1ea5p l\u1edbp tr\u1eebu t\u01b0\u1ee3ng \u0111\u1ec3 ch\u01b0\u01a1ng tr\u00ecnh kh\u00f4ng ph\u1ea3i tr\u1ef1c ti\u1ebfp x\u1eed l\u00fd \u0111\u1eb7c \u0111i\u1ec3m ph\u1ea7n c\u1ee9ng c\u1ee7a t\u1eebng thi\u1ebft b\u1ecb.<\/p>\n<h3>42. Interrupt<\/h3>\n<p>Ng\u1eaft cho ph\u00e9p CPU ph\u1ea3n \u1ee9ng v\u1edbi c\u00e1c s\u1ef1 ki\u1ec7n t\u1eeb ph\u1ea7n c\u1ee9ng ho\u1eb7c h\u1ec7 th\u1ed1ng.<\/p>\n<p>Sinh vi\u00ean c\u1ea7n hi\u1ec3u:<\/p>\n<ul>\n<li>Interrupt request.<\/li>\n<li>Interrupt handler.<\/li>\n<li>L\u01b0u tr\u1ea1ng th\u00e1i.<\/li>\n<li>X\u1eed l\u00fd ng\u1eaft.<\/li>\n<li>Kh\u00f4i ph\u1ee5c th\u1ef1c thi.<\/li>\n<\/ul>\n<h3>43. DMA<\/h3>\n<p>Direct Memory Access cho ph\u00e9p m\u1ed9t s\u1ed1 thi\u1ebft b\u1ecb truy\u1ec1n d\u1eef li\u1ec7u v\u1edbi b\u1ed9 nh\u1edb m\u00e0 kh\u00f4ng y\u00eau c\u1ea7u CPU x\u1eed l\u00fd t\u1eebng \u0111\u01a1n v\u1ecb d\u1eef li\u1ec7u.<\/p>\n<p>DMA gi\u00fap gi\u1ea3m t\u1ea3i cho CPU trong c\u00e1c thao t\u00e1c truy\u1ec1n d\u1eef li\u1ec7u l\u1edbn.<\/p>\n<h3>44. Qu\u1ea3n l\u00fd l\u01b0u tr\u1eef<\/h3>\n<p>C\u00e1c n\u1ed9i dung c\u00f3 th\u1ec3 g\u1ed3m:<\/p>\n<ul>\n<li>HDD.<\/li>\n<li>SSD.<\/li>\n<li>Block.<\/li>\n<li>Sector.<\/li>\n<li>Disk scheduling.<\/li>\n<li>Storage hierarchy.<\/li>\n<li>Hi\u1ec7u n\u0103ng l\u01b0u tr\u1eef.<\/li>\n<\/ul>\n<h3>45. L\u1eadp l\u1ecbch \u0111\u0129a<\/h3>\n<p>C\u00e1c thu\u1eadt to\u00e1n th\u01b0\u1eddng \u0111\u01b0\u1ee3c nghi\u00ean c\u1ee9u c\u00f3 th\u1ec3 g\u1ed3m:<\/p>\n<ul>\n<li>FCFS.<\/li>\n<li>SSTF.<\/li>\n<li>SCAN.<\/li>\n<li>C-SCAN.<\/li>\n<li>LOOK.<\/li>\n<li>C-LOOK.<\/li>\n<\/ul>\n<p>Sinh vi\u00ean c\u1ea7n hi\u1ec3u m\u1ee5c ti\u00eau gi\u1ea3m th\u1eddi gian di chuy\u1ec3n v\u00e0 t\u0103ng hi\u1ec7u qu\u1ea3 truy c\u1eadp thi\u1ebft b\u1ecb l\u01b0u tr\u1eef.<\/p>\n<h3>46. B\u1ea3o v\u1ec7 h\u1ec7 th\u1ed1ng<\/h3>\n<p>Protection li\u00ean quan \u0111\u1ebfn ki\u1ec3m so\u00e1t quy\u1ec1n truy c\u1eadp t\u00e0i nguy\u00ean.<\/p>\n<p>C\u00e1c n\u1ed9i dung c\u1ea7n ch\u00fa \u00fd:<\/p>\n<ul>\n<li>User.<\/li>\n<li>Process.<\/li>\n<li>Resource.<\/li>\n<li>Permission.<\/li>\n<li>Access control.<\/li>\n<li>Authentication.<\/li>\n<li>Authorization.<\/li>\n<\/ul>\n<h3>47. Quy\u1ec1n truy c\u1eadp<\/h3>\n<p>C\u00e1c quy\u1ec1n th\u01b0\u1eddng li\u00ean quan \u0111\u1ebfn:<\/p>\n<ul>\n<li>Read.<\/li>\n<li>Write.<\/li>\n<li>Execute.<\/li>\n<li>Create.<\/li>\n<li>Delete.<\/li>\n<li>Modify.<\/li>\n<\/ul>\n<p>H\u1ec7 \u0111i\u1ec1u h\u00e0nh c\u1ea7n x\u00e1c \u0111\u1ecbnh ch\u1ee7 th\u1ec3 n\u00e0o \u0111\u01b0\u1ee3c ph\u00e9p th\u1ef1c hi\u1ec7n thao t\u00e1c n\u00e0o tr\u00ean t\u00e0i nguy\u00ean.<\/p>\n<h3>48. An to\u00e0n h\u1ec7 \u0111i\u1ec1u h\u00e0nh<\/h3>\n<p>C\u00e1c v\u1ea5n \u0111\u1ec1 c\u1ea7n ch\u00fa \u00fd:<\/p>\n<ul>\n<li>X\u00e1c th\u1ef1c ng\u01b0\u1eddi d\u00f9ng.<\/li>\n<li>Ki\u1ec3m so\u00e1t quy\u1ec1n.<\/li>\n<li>B\u1ea3o v\u1ec7 b\u1ed9 nh\u1edb.<\/li>\n<li>B\u1ea3o v\u1ec7 t\u1ec7p.<\/li>\n<li>M\u00e3 \u0111\u1ed9c.<\/li>\n<li>T\u1ea5n c\u00f4ng h\u1ec7 th\u1ed1ng.<\/li>\n<li>C\u1eadp nh\u1eadt b\u1ea3o m\u1eadt.<\/li>\n<li>Nh\u1eadt k\u00fd h\u1ec7 th\u1ed1ng.<\/li>\n<\/ul>\n<h3>49. M\u00e1y \u1ea3o<\/h3>\n<p>Virtual machine t\u1ea1o m\u00f4i tr\u01b0\u1eddng m\u00e1y t\u00ednh \u0111\u01b0\u1ee3c tr\u1eebu t\u01b0\u1ee3ng h\u00f3a b\u1eb1ng ph\u1ea7n m\u1ec1m.<\/p>\n<p>Sinh vi\u00ean c\u1ea7n hi\u1ec3u:<\/p>\n<ul>\n<li>Virtualization.<\/li>\n<li>Host.<\/li>\n<li>Guest.<\/li>\n<li>Hypervisor.<\/li>\n<li>Isolation.<\/li>\n<li>Chia s\u1ebb t\u00e0i nguy\u00ean v\u1eadt l\u00fd.<\/li>\n<\/ul>\n<h3>50. H\u1ec7 \u0111i\u1ec1u h\u00e0nh Linux v\u00e0 Unix<\/h3>\n<p>Khi t\u00ecm hi\u1ec3u h\u1ec7 \u0111i\u1ec1u h\u00e0nh th\u1ef1c t\u1ebf, sinh vi\u00ean c\u00f3 th\u1ec3 g\u1eb7p:<\/p>\n<ul>\n<li>Kernel.<\/li>\n<li>Shell.<\/li>\n<li>Process.<\/li>\n<li>User.<\/li>\n<li>Permission.<\/li>\n<li>File system.<\/li>\n<li>Command line.<\/li>\n<li>Directory.<\/li>\n<li>System call.<\/li>\n<\/ul>\n<p>Vi\u1ec7c li\u00ean h\u1ec7 ki\u1ebfn th\u1ee9c l\u00fd thuy\u1ebft v\u1edbi Linux ho\u1eb7c Unix gi\u00fap ng\u01b0\u1eddi h\u1ecdc hi\u1ec3u r\u00f5 h\u01a1n c\u00e1ch c\u00e1c nguy\u00ean l\u00fd h\u1ec7 \u0111i\u1ec1u h\u00e0nh \u0111\u01b0\u1ee3c tri\u1ec3n khai trong th\u1ef1c t\u1ebf.<\/p>\n<h2>C\u00e1ch \u00f4n Nguy\u00ean l\u00fd H\u1ec7 \u0111i\u1ec1u h\u00e0nh VNU hi\u1ec7u qu\u1ea3<\/h2>\n<h3>B\u01b0\u1edbc 1: Chia ki\u1ebfn th\u1ee9c th\u00e0nh t\u1eebng nh\u00f3m<\/h3>\n<p>C\u00f3 th\u1ec3 chia th\u00e0nh:<\/p>\n<ul>\n<li>T\u1ed5ng quan h\u1ec7 \u0111i\u1ec1u h\u00e0nh.<\/li>\n<li>Process v\u00e0 Thread.<\/li>\n<li>CPU Scheduling.<\/li>\n<li>Synchronization.<\/li>\n<li>Deadlock.<\/li>\n<li>Memory Management.<\/li>\n<li>Virtual Memory.<\/li>\n<li>File System.<\/li>\n<li>I\/O.<\/li>\n<li>Storage.<\/li>\n<li>Protection v\u00e0 Security.<\/li>\n<\/ul>\n<h3>B\u01b0\u1edbc 2: Ph\u00e2n bi\u1ec7t c\u00e1c kh\u00e1i ni\u1ec7m d\u1ec5 nh\u1ea7m<\/h3>\n<p>C\u1ea7n \u0111\u1eb7c bi\u1ec7t ch\u00fa \u00fd:<\/p>\n<ul>\n<li>Program v\u00e0 Process.<\/li>\n<li>Process v\u00e0 Thread.<\/li>\n<li>Preemptive v\u00e0 Non-preemptive.<\/li>\n<li>Mutex v\u00e0 Semaphore.<\/li>\n<li>Deadlock prevention v\u00e0 avoidance.<\/li>\n<li>Paging v\u00e0 Segmentation.<\/li>\n<li>Logical address v\u00e0 Physical address.<\/li>\n<li>Page v\u00e0 Frame.<\/li>\n<li>Internal fragmentation v\u00e0 External fragmentation.<\/li>\n<li>File v\u00e0 Directory.<\/li>\n<\/ul>\n<h3>B\u01b0\u1edbc 3: Luy\u1ec7n c\u00e1c b\u00e0i to\u00e1n l\u1eadp l\u1ecbch<\/h3>\n<p>\u0110\u1ed1i v\u1edbi CPU Scheduling n\u00ean luy\u1ec7n:<\/p>\n<ul>\n<li>FCFS.<\/li>\n<li>SJF.<\/li>\n<li>SRTF.<\/li>\n<li>Priority.<\/li>\n<li>Round Robin.<\/li>\n<\/ul>\n<p>C\u1ea7n t\u00ednh v\u00e0 ph\u00e2n bi\u1ec7t:<\/p>\n<ul>\n<li>Waiting time.<\/li>\n<li>Turnaround time.<\/li>\n<li>Response time.<\/li>\n<li>Th\u1ee9 t\u1ef1 th\u1ef1c thi.<\/li>\n<\/ul>\n<h3>B\u01b0\u1edbc 4: Luy\u1ec7n b\u00e0i to\u00e1n qu\u1ea3n l\u00fd b\u1ed9 nh\u1edb<\/h3>\n<p>N\u00ean luy\u1ec7n:<\/p>\n<ul>\n<li>First Fit.<\/li>\n<li>Best Fit.<\/li>\n<li>Worst Fit.<\/li>\n<li>Paging.<\/li>\n<li>Address translation.<\/li>\n<li>Page table.<\/li>\n<li>Page replacement.<\/li>\n<\/ul>\n<h3>B\u01b0\u1edbc 5: Luy\u1ec7n c\u00e1c thu\u1eadt to\u00e1n thay th\u1ebf trang<\/h3>\n<p>C\u1ea7n th\u1ef1c h\u00e0nh:<\/p>\n<ul>\n<li>FIFO.<\/li>\n<li>Optimal.<\/li>\n<li>LRU.<\/li>\n<\/ul>\n<p>V\u1edbi m\u1ed7i b\u00e0i, n\u00ean x\u00e1c \u0111\u1ecbnh:<\/p>\n<ul>\n<li>Chu\u1ed7i tham chi\u1ebfu trang.<\/li>\n<li>S\u1ed1 frame.<\/li>\n<li>Tr\u1ea1ng th\u00e1i b\u1ed9 nh\u1edb sau m\u1ed7i l\u1ea7n truy c\u1eadp.<\/li>\n<li>T\u1ed5ng s\u1ed1 page fault.<\/li>\n<\/ul>\n<h3>B\u01b0\u1edbc 6: T\u1ef1 l\u00e0m c\u00e2u h\u1ecfi tr\u01b0\u1edbc khi xem \u0111\u00e1p \u00e1n<\/h3>\n<p>\u0110\u1ecdc t\u1eebng c\u00e2u h\u1ecfi v\u00e0 t\u1ef1 l\u1ef1a ch\u1ecdn ph\u01b0\u01a1ng \u00e1n tr\u01b0\u1edbc.<\/p>\n<p>Sau \u0111\u00f3 m\u1edbi ki\u1ec3m tra \u0111\u00e1p \u00e1n v\u00e0 x\u00e1c \u0111\u1ecbnh nguy\u00ean nh\u00e2n n\u1ebfu tr\u1ea3 l\u1eddi sai.<\/p>\n<h3>B\u01b0\u1edbc 7: Ph\u00e2n lo\u1ea1i c\u00e1c c\u00e2u tr\u1ea3 l\u1eddi sai<\/h3>\n<p>C\u00f3 th\u1ec3 chia th\u00e0nh:<\/p>\n<ul>\n<li>Sai kh\u00e1i ni\u1ec7m.<\/li>\n<li>Nh\u1ea7m thu\u1eadt to\u00e1n.<\/li>\n<li>Nh\u1ea7m tr\u1ea1ng th\u00e1i ti\u1ebfn tr\u00ecnh.<\/li>\n<li>Nh\u1ea7m c\u00e1ch l\u1eadp l\u1ecbch.<\/li>\n<li>Nh\u1ea7m \u0111\u1ed3ng b\u1ed9 h\u00f3a.<\/li>\n<li>Nh\u1ea7m \u0111i\u1ec1u ki\u1ec7n deadlock.<\/li>\n<li>Sai t\u00ednh to\u00e1n b\u1ed9 nh\u1edb.<\/li>\n<li>Sai thu\u1eadt to\u00e1n thay th\u1ebf trang.<\/li>\n<li>Nh\u1ea7m c\u1ea5u tr\u00fac h\u1ec7 th\u1ed1ng t\u1ec7p.<\/li>\n<\/ul>\n<h3>B\u01b0\u1edbc 8: K\u1ebft h\u1ee3p t\u00e0i li\u1ec7u ch\u00ednh th\u1ee9c<\/h3>\n<p>T\u00e0i li\u1ec7u tr\u1eafc nghi\u1ec7m n\u00ean \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng c\u00f9ng:<\/p>\n<ul>\n<li>Gi\u00e1o tr\u00ecnh.<\/li>\n<li>Slide b\u00e0i gi\u1ea3ng.<\/li>\n<li>\u0110\u1ec1 c\u01b0\u01a1ng h\u1ecdc ph\u1ea7n.<\/li>\n<li>T\u00e0i li\u1ec7u do gi\u1ea3ng vi\u00ean cung c\u1ea5p.<\/li>\n<li>C\u00e1c t\u00e0i li\u1ec7u h\u1ecdc t\u1eadp ch\u00ednh th\u1ee9c kh\u00e1c.<\/li>\n<\/ul>\n<p>Vi\u1ec7c k\u1ebft h\u1ee3p nhi\u1ec1u ngu\u1ed3n gi\u00fap ng\u01b0\u1eddi h\u1ecdc hi\u1ec3u b\u1ea3n ch\u1ea5t c\u01a1 ch\u1ebf ho\u1ea1t \u0111\u1ed9ng c\u1ee7a h\u1ec7 \u0111i\u1ec1u h\u00e0nh thay v\u00ec ch\u1ec9 ghi nh\u1edb \u0111\u00e1p \u00e1n.<\/p>\n<h2>Xem tr\u01b0\u1edbc t\u00e0i li\u1ec7u Nguy\u00ean l\u00fd H\u1ec7 \u0111i\u1ec1u h\u00e0nh VNU<\/h2>\n<p>Ng\u01b0\u1eddi d\u00f9ng c\u00f3 th\u1ec3 xem tr\u01b0\u1edbc kho\u1ea3ng 20\u201330% n\u1ed9i dung c\u1ee7a t\u00e0i li\u1ec7u 156 trang tr\u01b0\u1edbc khi quy\u1ebft \u0111\u1ecbnh t\u1ea3i b\u1ea3n \u0111\u1ea7y \u0111\u1ee7.<\/p>\n<p>Ph\u1ea7n xem tr\u01b0\u1edbc gi\u00fap ki\u1ec3m tra:<\/p>\n<ul>\n<li>C\u1ea5u tr\u00fac t\u00e0i li\u1ec7u.<\/li>\n<li>D\u1ea1ng c\u00e2u h\u1ecfi.<\/li>\n<li>C\u00e1ch tr\u00ecnh b\u00e0y.<\/li>\n<li>C\u00e1ch b\u1ed1 tr\u00ed \u0111\u00e1p \u00e1n.<\/li>\n<li>M\u1ed9t ph\u1ea7n n\u1ed9i dung th\u1ef1c t\u1ebf c\u1ee7a t\u00e0i li\u1ec7u.<\/li>\n<\/ul>\n<p>File preview \u0111\u01b0\u1ee3c tool t\u1ef1 x\u00e1c \u0111\u1ecbnh:<\/p>\n<p>nguyen-ly-he-dieu-hanh-dap-an-trac-nghiem-dai-hoc-quoc-gia-ha-noi-preview.docx<\/p>\n<h2>T\u1ea3i \u0111\u00e1p \u00e1n tr\u1eafc nghi\u1ec7m Nguy\u00ean l\u00fd H\u1ec7 \u0111i\u1ec1u h\u00e0nh VNU<\/h2>\n<p>Quy tr\u00ecnh nh\u1eadn t\u00e0i li\u1ec7u:<\/p>\n<ol>\n<li>Xem tr\u01b0\u1edbc kho\u1ea3ng 20\u201330% n\u1ed9i dung.<\/li>\n<li>Ki\u1ec3m tra t\u00e0i li\u1ec7u c\u00f3 ph\u00f9 h\u1ee3p v\u1edbi nhu c\u1ea7u.<\/li>\n<li>Ch\u1ecdn t\u1ea3i t\u00e0i li\u1ec7u.<\/li>\n<li>Thanh to\u00e1n qua VNPAY.<\/li>\n<li>H\u1ec7 th\u1ed1ng x\u00e1c nh\u1eadn giao d\u1ecbch th\u00e0nh c\u00f4ng.<\/li>\n<li>Nh\u1eadn quy\u1ec1n t\u1ea3i file DOCX \u0111\u1ea7y \u0111\u1ee7 156 trang.<\/li>\n<\/ol>\n<p>\ud83d\udce5 Sau khi thanh to\u00e1n th\u00e0nh c\u00f4ng, ng\u01b0\u1eddi d\u00f9ng c\u00f3 th\u1ec3 t\u1ea3i t\u00e0i li\u1ec7u \u0111\u1ea7y \u0111\u1ee7 v\u1ec1 m\u00e1y \u0111\u1ec3 s\u1eed d\u1ee5ng trong qu\u00e1 tr\u00ecnh h\u1ecdc t\u1eadp.<\/p>\n<p><strong>\ud83d\udc49 NH\u1ea4N \u201cT\u1ea2I XU\u1ed0NG NGAY\u201d \u0110\u1ec2 NH\u1eacN FILE \u0110\u1ea6Y \u0110\u1ee6.<\/strong><\/p>\n<h2>L\u1ee3i \u00edch khi s\u1eed d\u1ee5ng t\u00e0i li\u1ec7u Nguy\u00ean l\u00fd H\u1ec7 \u0111i\u1ec1u h\u00e0nh VNU<\/h2>\n<p>\u2705 File DOCX 156 trang thu\u1eadn ti\u1ec7n tra c\u1ee9u.<\/p>\n<p>\u2705 Luy\u1ec7n t\u1eadp c\u00e2u h\u1ecfi tr\u1eafc nghi\u1ec7m theo t\u1eebng nh\u00f3m ki\u1ebfn th\u1ee9c.<\/p>\n<p>\u2705 Ki\u1ec3m tra v\u00e0 \u0111\u1ed1i chi\u1ebfu \u0111\u00e1p \u00e1n thu\u1eadn ti\u1ec7n.<\/p>\n<p>\u2705 H\u1ec7 th\u1ed1ng ki\u1ebfn th\u1ee9c Nguy\u00ean l\u00fd H\u1ec7 \u0111i\u1ec1u h\u00e0nh.<\/p>\n<p>\u2705 C\u1ee7ng c\u1ed1 ki\u1ebfn th\u1ee9c v\u1ec1 ti\u1ebfn tr\u00ecnh v\u00e0 lu\u1ed3ng.<\/p>\n<p>\u2705 \u00d4n t\u1eadp c\u00e1c thu\u1eadt to\u00e1n l\u1eadp l\u1ecbch CPU.<\/p>\n<p>\u2705 C\u1ee7ng c\u1ed1 \u0111\u1ed3ng b\u1ed9 h\u00f3a v\u00e0 deadlock.<\/p>\n<p>\u2705 H\u1ec7 th\u1ed1ng ki\u1ebfn th\u1ee9c qu\u1ea3n l\u00fd b\u1ed9 nh\u1edb.<\/p>\n<p>\u2705 \u00d4n t\u1eadp b\u1ed9 nh\u1edb \u1ea3o v\u00e0 thay th\u1ebf trang.<\/p>\n<p>\u2705 C\u1ee7ng c\u1ed1 ki\u1ebfn th\u1ee9c v\u1ec1 h\u1ec7 th\u1ed1ng t\u1ec7p.<\/p>\n<p>\u2705 \u00d4n t\u1eadp thi\u1ebft b\u1ecb v\u00e0o\/ra v\u00e0 l\u01b0u tr\u1eef.<\/p>\n<p>\u2705 H\u1ec7 th\u1ed1ng ki\u1ebfn th\u1ee9c b\u1ea3o v\u1ec7 v\u00e0 an to\u00e0n h\u1ec7 th\u1ed1ng.<\/p>\n<p>\u2705 Ph\u00e1t hi\u1ec7n nh\u1eefng n\u1ed9i dung c\u00f2n y\u1ebfu.<\/p>\n<p>\u2705 Ti\u1ebft ki\u1ec7m th\u1eddi gian t\u1ef1 t\u1ed5ng h\u1ee3p t\u00e0i li\u1ec7u.<\/p>\n<p>\u2705 H\u1ed7 tr\u1ee3 \u00f4n t\u1eadp, \u00f4n thi hi\u1ec7u qu\u1ea3.<\/p>\n<h2>T\u00e0i li\u1ec7u Nguy\u00ean l\u00fd H\u1ec7 \u0111i\u1ec1u h\u00e0nh VNU ph\u00f9 h\u1ee3p v\u1edbi ai?<\/h2>\n<p>T\u00e0i li\u1ec7u ph\u00f9 h\u1ee3p v\u1edbi:<\/p>\n<ul>\n<li>Sinh vi\u00ean \u0110\u1ea1i h\u1ecdc Qu\u1ed1c gia H\u00e0 N\u1ed9i.<\/li>\n<li>Sinh vi\u00ean \u0111ang h\u1ecdc m\u00f4n Nguy\u00ean l\u00fd H\u1ec7 \u0111i\u1ec1u h\u00e0nh.<\/li>\n<li>Sinh vi\u00ean ng\u00e0nh C\u00f4ng ngh\u1ec7 th\u00f4ng tin.<\/li>\n<li>Sinh vi\u00ean ng\u00e0nh Khoa h\u1ecdc m\u00e1y t\u00ednh.<\/li>\n<li>Sinh vi\u00ean ng\u00e0nh H\u1ec7 th\u1ed1ng th\u00f4ng tin.<\/li>\n<li>Sinh vi\u00ean c\u00e1c ng\u00e0nh k\u1ef9 thu\u1eadt m\u00e1y t\u00ednh v\u00e0 ng\u00e0nh li\u00ean quan.<\/li>\n<li>Sinh vi\u00ean c\u1ea7n luy\u1ec7n t\u1eadp c\u00e2u h\u1ecfi tr\u1eafc nghi\u1ec7m.<\/li>\n<li>Sinh vi\u00ean c\u1ea7n ki\u1ec3m tra v\u00e0 \u0111\u1ed1i chi\u1ebfu \u0111\u00e1p \u00e1n.<\/li>\n<li>Sinh vi\u00ean chu\u1ea9n b\u1ecb ki\u1ec3m tra ho\u1eb7c thi k\u1ebft th\u00fac h\u1ecdc ph\u1ea7n.<\/li>\n<li>Ng\u01b0\u1eddi h\u1ecdc c\u1ea7n t\u00e0i li\u1ec7u h\u1ed7 tr\u1ee3 \u00f4n t\u1eadp, \u00f4n thi hi\u1ec7u qu\u1ea3.<\/li>\n<\/ul>\n<h2>L\u01b0u \u00fd khi s\u1eed d\u1ee5ng t\u00e0i li\u1ec7u<\/h2>\n<p>T\u00e0i li\u1ec7u \u0111\u01b0\u1ee3c cung c\u1ea5p nh\u1eb1m h\u1ed7 tr\u1ee3 h\u1ecdc t\u1eadp, luy\u1ec7n t\u1eadp v\u00e0 \u00f4n thi.<\/p>\n<p>T\u00e0i li\u1ec7u \u0111\u00e1p \u00e1n tr\u1eafc nghi\u1ec7m kh\u00f4ng thay th\u1ebf gi\u00e1o tr\u00ecnh, b\u00e0i gi\u1ea3ng, \u0111\u1ec1 c\u01b0\u01a1ng h\u1ecdc ph\u1ea7n ho\u1eb7c c\u00e1c t\u00e0i li\u1ec7u ch\u00ednh th\u1ee9c c\u1ee7a c\u01a1 s\u1edf \u0111\u00e0o t\u1ea1o.<\/p>\n<p>Ng\u01b0\u1eddi h\u1ecdc n\u00ean t\u1ef1 l\u00e0m c\u00e2u h\u1ecfi tr\u01b0\u1edbc khi xem \u0111\u00e1p \u00e1n v\u00e0 \u0111\u1ed1i chi\u1ebfu nh\u1eefng n\u1ed9i dung ch\u01b0a ch\u1eafc ch\u1eafn v\u1edbi t\u00e0i li\u1ec7u h\u1ecdc t\u1eadp ch\u00ednh th\u1ee9c.<\/p>\n<p>Kh\u00f4ng n\u00ean ch\u1ec9 h\u1ecdc thu\u1ed9c \u0111\u00e1p \u00e1n. Vi\u1ec7c hi\u1ec3u c\u00e1ch ti\u1ebfn tr\u00ecnh \u0111\u01b0\u1ee3c l\u1eadp l\u1ecbch, c\u00e1ch b\u1ed9 nh\u1edb \u0111\u01b0\u1ee3c qu\u1ea3n l\u00fd, c\u01a1 ch\u1ebf \u0111\u1ed3ng b\u1ed9 h\u00f3a, deadlock, b\u1ed9 nh\u1edb \u1ea3o v\u00e0 h\u1ec7 th\u1ed1ng t\u1ec7p s\u1ebd gi\u00fap ng\u01b0\u1eddi h\u1ecdc x\u1eed l\u00fd t\u1ed1t h\u01a1n khi c\u00e2u h\u1ecfi \u0111\u01b0\u1ee3c di\u1ec5n \u0111\u1ea1t theo c\u00e1ch kh\u00e1c.<\/p>\n<p>\u0110\u1ed1i v\u1edbi nh\u1eefng c\u00e2u h\u1ecfi c\u00f3 thu\u1eadt to\u00e1n ho\u1eb7c t\u00ednh to\u00e1n, ng\u01b0\u1eddi h\u1ecdc n\u00ean th\u1ef1c hi\u1ec7n l\u1ea1i t\u1eebng b\u01b0\u1edbc thay v\u00ec ch\u1ec9 ghi nh\u1edb k\u1ebft qu\u1ea3 cu\u1ed1i c\u00f9ng.<\/p>\n<h2>K\u1ebft lu\u1eadn v\u1ec1 Nguy\u00ean l\u00fd H\u1ec7 \u0111i\u1ec1u h\u00e0nh VNU<\/h2>\n<p>Nguy\u00ean l\u00fd H\u1ec7 \u0111i\u1ec1u h\u00e0nh VNU \u2013 \u0110\u00e1p \u00e1n tr\u1eafc nghi\u1ec7m \u0110\u1ea1i h\u1ecdc Qu\u1ed1c gia H\u00e0 N\u1ed9i (File DOCX 156 trang) l\u00e0 t\u00e0i li\u1ec7u h\u1ed7 tr\u1ee3 sinh vi\u00ean luy\u1ec7n t\u1eadp c\u00e2u h\u1ecfi, ki\u1ec3m tra \u0111\u00e1p \u00e1n, h\u1ec7 th\u1ed1ng h\u00f3a ki\u1ebfn th\u1ee9c v\u00e0 h\u1ed7 tr\u1ee3 \u00f4n t\u1eadp, \u00f4n thi hi\u1ec7u qu\u1ea3.<\/p>\n<p>C\u00e1c n\u1ed9i dung v\u1ec1 ti\u1ebfn tr\u00ecnh, lu\u1ed3ng, l\u1eadp l\u1ecbch CPU, \u0111\u1ed3ng b\u1ed9 h\u00f3a, deadlock, qu\u1ea3n l\u00fd b\u1ed9 nh\u1edb, b\u1ed9 nh\u1edb \u1ea3o, h\u1ec7 th\u1ed1ng t\u1ec7p, thi\u1ebft b\u1ecb v\u00e0o\/ra, l\u01b0u tr\u1eef v\u00e0 b\u1ea3o v\u1ec7 h\u1ec7 th\u1ed1ng l\u00e0 nh\u1eefng nh\u00f3m ki\u1ebfn th\u1ee9c ng\u01b0\u1eddi h\u1ecdc n\u00ean ch\u00fa \u00fd trong qu\u00e1 tr\u00ecnh \u00f4n t\u1eadp.<\/p>\n<p>Vi\u1ec7c k\u1ebft h\u1ee3p t\u00e0i li\u1ec7u tr\u1eafc nghi\u1ec7m v\u1edbi gi\u00e1o tr\u00ecnh, b\u00e0i gi\u1ea3ng v\u00e0 \u0111\u1ec1 c\u01b0\u01a1ng h\u1ecdc ph\u1ea7n gi\u00fap ng\u01b0\u1eddi h\u1ecdc ch\u1ee7 \u0111\u1ed9ng h\u01a1n trong qu\u00e1 tr\u00ecnh h\u1ecdc t\u1eadp v\u00e0 h\u1ea1n ch\u1ebf vi\u1ec7c ch\u1ec9 ghi nh\u1edb \u0111\u00e1p \u00e1n m\u1ed9t c\u00e1ch m\u00e1y m\u00f3c.<\/p>\n<p>\ud83d\udc41 Xem tr\u01b0\u1edbc kho\u1ea3ng 20\u201330% n\u1ed9i dung.<\/p>\n<p>\ud83d\udcb3 Thanh to\u00e1n thu\u1eadn ti\u1ec7n qua VNPAY.<\/p>\n<p>\ud83d\udce5 Nh\u1eadn file DOCX \u0111\u1ea7y \u0111\u1ee7 156 trang sau khi thanh to\u00e1n th\u00e0nh c\u00f4ng.<\/p>"},"_links":{"self":[{"href":"https:\/\/docx247.com\/en\/wp-json\/wp\/v2\/product\/8555","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/docx247.com\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/docx247.com\/en\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/docx247.com\/en\/wp-json\/wp\/v2\/comments?post=8555"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docx247.com\/en\/wp-json\/wp\/v2\/media\/8481"}],"wp:attachment":[{"href":"https:\/\/docx247.com\/en\/wp-json\/wp\/v2\/media?parent=8555"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/docx247.com\/en\/wp-json\/wp\/v2\/product_brand?post=8555"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/docx247.com\/en\/wp-json\/wp\/v2\/product_cat?post=8555"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/docx247.com\/en\/wp-json\/wp\/v2\/product_tag?post=8555"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}