Ti liu trc nghim H iu hnh

Cu hi trc nghim (H iu hnh)1. H iu hnh l phn mm 1. lun lun phi c my tnh hot ng 2. iu khin thit b phn cng 3. *qun l v phn phi ti nguyn my tnh phc v cho cc ng dng 4. Tt c cc cu trn u ng 2. H iu hnh thit k theo kiu microkernel c tt c cc c trng sau ngoi tr 1. vic m rng chc nng s d dng 2. ch nhng chc nng c bn mi c hin thc trong kernel 3. phn ln cc dch v c hin thc trong user space 4. *giao tip gia client v service provider c thc hin thng qua c ch shared memory 3. Vic truyn thng s t chng trnh ng dng n h iu hnh c th thc hin bng cch lu thng s trong 1. cc thanh ghi 2. stack 3. vng nh trong b nh chnh 4. *Tt c cc cu trn u ng 4. u im chnh ca time-sharing system so vi multiprogrammed system. 1. Chi ph qun l cc process nh hn 2. Tng hiu sut ca CPU 3. *Thi gian p ng (response time) nh hn 4. Gim burst time ca process 5. Trong ngn ng C: &a s cho bit 1. *a ch bin a trong khng gian nh ca process 2. a ch hin ti ca bin a trong RAM 3. a ch thc ca bin a 4. cha bit!!! 6. K thut Overlay c p dng khi:Nng Hnh Phc Trang 1

Ti liu trc nghim H iu hnh1. khng cn vng nh chy chng trnh. 2. *chng trnh c kch thc ln hn vng nh. 3. chng trnh c kch thc nh hn vng nh. 7. Khi b nh c hin tng phn mnh(fragmentation) qua nhiu th HH s: 1. *tin hnh thu gom nhng Hole nh thnh Hole ln hn. 2. loi b bt mt s process. 3. treo my. 8. Vi mt h thng a chng trnh th b nh s: 1. h iu hnh c np. 2. h iu hnh v mt process. 3. *h iu hnh v nhiu process. 9. Mt trang b nh c qun l bi: 1. mt phn t trong bn trang. 2. PR (present bit). 3. *PF(page frame number). 10. Trong k thut phn trang(Paging)khi b nh thc y th HH s: 1. tin hnh np li cc trang. 2. *thc hin chin lc thay th trang. 3. loi b cc trang b li. 11. Process l g: 1. mt chng trnh lu trn a. 2. *mt chng trnh np vo b nh v ang c CPU thc thi. 3. mt chng trnh c np vo b nh. 12. Trng thi BLOCKED ca mt process l do: 1. ang ch nhp xut. 2. ang ch mt s kin no cha xy ra. 3. *c 2 u ng. 13. Hnh ng no HH s thc thi mt process mi sinh ra: 1. cp CPU ngay cho process. 2. Giao ngay cc ti nguyn m process cn. 3. *To ngay khi PCB qun l process. 14. u tin ca cc process cho bit: 1. Process s dng CPU nhiu hay t.Nng Hnh Phc Trang 2

Ti liu trc nghim H iu hnh2. Process chim nhiu hay t vng nh. 3. *tm quan trng ca prcess. 15. Khi mt process chun b vo hay ra khi mt vng Critical Section th phi: 1. xin php HH. 2. pht c hiu khi vo v ch khi ra. 3. *c hai trn. 16. Hng i dnh cho cc process xp hng ch nhp xut c gi l: 1. Busy-Waitting buffer. 2. *Ready queue. 3. Waitting queue. 17. Gii thut no sau y gi nhau: 1. Gii thut an ton gi gii thut nh bng. 2. Gii thut nh bng gi gii thut an ton. 3. *Hai gii thut trn chy c lp. 18. K thut nhp xut no sau y lam CPU t bn rn nht: 1. Busy_waitting. 2. INterrup. 3. *DMA. 19. Trong Linux,lnh no sau y cho php uninstall phn mm apache: 1. rpm -i apache. 2. *rpm -e apache. 3. rpm -u apache. 20. Trong Linux mun ngng lnh ping ta phi nhn phm : 1. Ctrl+Break. 2. Ctrl+D. 3. *Ctrl+C. 21. Trong Linux lnh ps -aux cho kt qu tng ng vi thao tc no sau y trong MS-Windows: 1. Start/Shutdown. 2. Start/Run ri g cmd. 3. *m chng trnh Task Manager. 22. H iu hnh l: 1. l phn mm ch qun l cc phn cng.Nng Hnh Phc Trang 3

Ti liu trc nghim H iu hnh2. *phn mm trung gian gia cc chng trnh ng dng v cc phn cng my tnh. 3. c 2 cu trn u ng. 23. Trong h thng file Ext2 cc thng tin c bn ca mt partition c lu ti vng: 1. *Super Block. 2. Group Descriptor. 3. c 2 vng trn. 24. Trong Ext2,th mc /root c qun l bi: 1. Inode s 1. 2. *Inode s 2. 3. c 2 cu trn u sai.

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