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TRC NGHIM LINUX

1. Phn quan trng nht ca h iu hnh Linux l: a. File System

b. Services

c. Kernel d. Shell

2. S phin bn kernel ca Linux c g c bit a. S chn l phin bn n nh b. S l l phin bn th nghim c. Khng quan trng d. Cu a v b ng

3. Khi ci RedHat Linux ch no th cc partion DOS b xo ht a. Workstation

b. Server

c. Workstation and Server

d. Khng ci no ng

4. Kin trc Kernel Linux l : a. Static

b. Microkernel

c. Distributed

d. Monolithic

5. Tc gi ca phin bn h iu hnh Linux u tin l ? a. Bill Gates

b. Linus Tolvards

c. Alan Turing

d. Pascal

6. lit k cc file c trong th mc hin hnh ta dng lnh:

a. lnh ls b. lnh df c. lnh du d. lnh cp

7. lit k y thng tin ca cc file c trong th mc hin hnh theo ta dng lnh ls vi tham s a. a x

b. l c. x d. n

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8. lit k cc file n trong th mc hin hnh theo ta dng lnh ls vi tham s a. b b. a c. l d. n

9. chuyn sang mt th mc khc ta dng lnh a. Lnh cdir b. Lnh cd c. Lnh mkdir d. Lnh dir

10. Mt user c username l sinhvien v home directory ca anh ta l /home/sinhvien. tr v home dir ca anh ta 1 cch nhanh nht, anh ta phi dng lnh a. cd

b. cd /home/sinhvien

c. cd / ; cd home ; cd sinhvien

d. cd /home/sinhvien

11. chp mt file /tmp/hello.txt vo th mc /tmp/hello/ ta phi lm lnh no sau y: a. copy /tmp/hello.txt /tmp/hello/

b. cp tmp/hello.txt /tmp/hello c. cp /tmp/hello /tmp/hello

d. cp /tmp/hello.txt /tmp/hello

12. xem ni dung mt tp tin vn bn trong Linux ta c th dng lnh no sau y a. cat

b. less

c. more

d. c 3 lnh trn

13. c ni dung mt a CD trong Linux ta phi lm th no ?

a. Phi mount trc b. eject cdrom

c. cd /mnt/cdrom

d. Khng c c CD rom

14. Lm th no c mt a mm trong Linux

a. mount /dev/fd0 b. mount /dev/cdrom

c. Khng cn lm g c, ch vic c t a:

15. Tp tin no cha cc mount point mc nh khi h thng boot ln: a. /etc/mtab

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b. /etc/mount.conf

c. /etc/fstab d. /etc/modules.conf

16. Tp tin no cha thng tin cc file system ang c mount a. /etc/mntab

b. /etc/mount.conf

c. /etc/fstab

d. /etc/modules.conf

17. Tp tin sau y c thuc tnh nh th no ? -rwx--x--x hello.sh a. 077

b. 644

c. 755

d. 711

18. thit lp thuc tnh cho mt tp tin hello.sh vi cc yu cu sau: Ch s hu c quyn c ghi, nhm c c, thc thi, other ch c th ta lm lnh no di y.

a. chmod 665

b. chmod 654

c. chmod 653

d. chmod 754

19. Tp tin c du chm . Pha trc c c tnh g c bit: V d: .hello.txt a. Tp tin n b. Thc thi c. Khng thy c vi lnh ls

20. Lnh no cho php ta to mt account user mi trn h thng a. Lnh adduser b. Lnh useradd c. lnh passwd d. Cu a v b ng

21. Sau khi nh lnh useradd sinhvien. Hi user c account l sinhvien c th login vo h thng c cha ?

a. c

b. Khng

22. Tp tin /etc/passwd cha thng tin g ca users h thng a. Cha profile ca ngi dng

b. Cha uid,gid, home directory, shell c. Cha password ca ngi dng d. Cha tp shadow ca ngi dng

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23. Tp tin /etc/shadow cha thng tin g ca users h thng a. Cha profile ca ngi dng b. Cha uid,gid, home directory, shell

c. Cha password ca ngi dng d. Cha login name

24. Trong h thng Linux user no c quyn cao nht a. User administrator

b. User root

c. User admin

d. User c UID=0

25. H thng Linux c my Run Level chnh a. C 7 Run Level

b. C 6 Run Level c. C 5 Run Level

d. C 4 Run Level

26. Run level no l shutdown v halt h thng a. Level 6

b. Level 0 c. Level 3

d. Level 5

27. Run level no l reboot h thng

a. Level 6 b. Level 0

c. Level 3

d. Level 5

28. Run level no lm h thng chy full mode with X window a. Level 6

b. Level 0

c. Level 3

d. Level 5

29. run level no h thng khng i hi ta phi nhp username password login

a. Level 1 b. Level 3

c. Level 5

d. Khng c level no

30. Chng trnh son tho vn bn no l ph bin nht trong hh Linux: a. vi

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b. Word

c. Emacs

d. Pico

31. Chng trnh son tho no sau y khng s dng giao din ho a. emacs

b. latex

c. vi d. kword

32. Emacs l mt chng trnh a. son tho vn bn b. Cng c lp trnh c. Email client

d. Tt c cc tnh nng trn

33. Trong vi, vo mode edit insert ta phi dng lnh no : a. Dng phm F4

b. ESC-:i c. ESC-:q

d. ESC-:x

34. Trong vi, thot khng cn hi li ta phi dng lnh no :

a. ESC-:q! b. ESC-wq

c. ESC-w!

d. ESC-!

35. xem cc tin trnh hin c trong h thng Linux ta dng lnh no a. Lnh ls b. Lnh ps c. Lnh cs d. Lnh ds

36. xem chi tit cc tin trnh ang chy trong h thng ta dng lnh ps vi cc tham s no sau y a. ef

b. ax c. axf d. C 3 cu u ng

37. Mi tin trnh chy trong h thng Linux c c trng bi :

a. PID b. PUID

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c. PGUID

d. GUID

38. Tham s PPIUD dng ch: a. Properly process ID

b. Parent process ID

c. Papa Process ID

d. Khng ci no ng

39. dng mt tin trnh ta dng lnh no : a. stop

b. kill

c. shutdown

d. halt

40. iu g xy ra vi mt tin trnh khi ta kill tin trnh cha ca n a. Khng c g nh hng b. Tin trnh con s cht theo c. Chng trnh s c li file cu hnh d. S c mt tin trnh con mi sinh ra

41. kill ht cc tin trnh c tn l vi ta dng lnh no a. kill 9 vi b. kill HUP vi c. killall HUP vi d. killall 9 vi

42. thit lp a ch IP cho mt my Linux ta s dng lnh no trong cc lnh sau y a. ipconfig

b. ifconfig c. netstat

d. route

43. xem trng thi cc port ang m ca mt my Linux ta s dng lnh no trong cc lnh sau y a. ipconfig

b. ifconfig

c. netstat d. route

44. xem cc thng tin v bng routing trong h thng Linux ta s dng lnh no trong cc lnh sau y a. ifconfig

b. netstat -nr

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c. route n

d. b v c ng

45. thit lp a ch IP cho card mng eth0 dng lnh ifconfig, ta phi thc hin lnh no sau y a. ifconfig eth0 172.16.10.11/ 255.255.255.0

b. ifconfig eth0 172.16.10.11 netmask 255.255.255.0 c. ifconfig eth0 172.16.10.11 mask 255.255.255.0

d. ifconfig eth0 172.16.10.11 mask 255.255.255.0

46. tm thi stop mt card mng ta dng lnh no a. ifconfig eth0 up

b. ifconfig eth0 stop

c. ifconfig eth0 start

d. ifconfig eth0 down

47. Gi s ta mun thm vo bng routing mt con ng mi: qua mng 192.168.10.0/24 th phi qua gateway 172.16.10.140 ta lm cch no:

a. route add net 192.168.10.0 netmask 255.255.255.0 gw 172.16.10.140 b. route add net 192.168.10.0 mask 255.255.255.0 gw 172.16.10.140 netmask 255.255.255.0

c. route add net 192.168.10.0/25 gw 172.16.10.140 d. route add net 192.168.10.0 netmask 255.255.255.0 gw 172.16.10.0

48. Khai bo default gw 172.16.8.2 cho 1 my Linux s dnglm lnh no: a. route add net default gw 172.16.8.2 b. route add net 0.0.0.0 netmask 0.0.0.0 gw 172.16.8.2 c. route add net 0.0.0.0 netmask 255.255.255.255 gw 172.16.8.2

d. Cu a v b ng

49. xem ti ca h thng Linux ta dng lnh no

a. Lnh top b. Lnh free c. Lnh performance d. Khng th bit

50. Tp tin no trong Linux nh ngha cc port cho cc dch v chy trong n a. /etc/service

b. /etc/services c. /etc/ports.conf

d. /etc/httpd.conf

51. Dch v SMTP chy port no a. 22

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b. 23

c. 24

d. 25

52. Dch v www chy port no a. 53

b. 80 c. 110

d. 443

53. Dch v no cho php ta truyn file qua mng a. http

b. ftp c. uucp

d. mc

54. Lm th no login t xa qua mng vo mt my Linux a. Dng telnet

b. Dng ssh

c. Dng rlogin

d. C 3 cch trn

55. Dch v SSH trong Linux l g ? a. Secure Socket Shell

b. Secure Shell c. Samba Shell

d. Khng l dch v g c

56. Lnh no dng ci t gi phn mm packagename.rpm? a. rpm evh packagename.rpm b. rpm ivh packagename.rpm c. rpm q packagename.rpm d. rpm qa *.rpm

57. thay i cc la chn gn kt (mount) t ng cho mt h thng tp tin cc b, ta cn sa i ni dung tp tin no? a. /etc/filesystems

b. /etc/fstab c. /etc/group

d. /etc/mnttab

58. Trong dch v httpd (Apache), xy dng my Web o, ta cn ch khi dn no? a. Directory

b. VirtualMachine

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c. VirtualHost d. Tt c u sai

59. thay i tn ng nhp ca ti khon user thnh newuser, ta dng lnh? a. userchange name newuser user b. passwd n newuser user

c. usermode l newuser user d. usermode m user newuser

60. ch lit k danh sch cc tp tin c k t cui cng trong tn l ? th mc hin hnh, ta dng lnh? a. ls *? b. ls*\?

c. ls *[?]

d. Tt c u sai

61. Tp tin no cha nh x tn-a ch IP cc b? a. /etc/host.conf

b. /etc/hosts c. /etc/resolv.conf

d. /etc/named.conf

62. Lnh no c s dng cho ngi dng thit lp lch ca ring h? a. vi ~/.crontab

b. cp /etc/crontab

c. crontab v

d. crontab e

63. chp ni dung file1 vo cui file2, s dng lnh? a. cat file1 file2

b. more file1 2> file2

c. cat file1 >> file2 d. copy file1 >> file2

64. Lnh no bit y ng dn ca th mc hin hnh?

a. pwd b. path

c. echo path

d. Khng cu no ng

65. thc hin phn gii ngc cho cc my thuc mng 192.168.20.0, ta cn nh ngha zone c tn? a. 192.168.20.in-addr.arpa

b. 192.168.20.0.in-addr.arpa

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c. 20.168.192.in-addr.arpa

d. Tt c u ng

66. hy b lnh ang thi hnh, ta thc hin:

a. Nhn Ctrl + C b. Nhn Ctrl + D c. Nhn Ctrl + Z d. Nhn Ctrl + S

67. xem ni dung ca tp tin vn bn, ta dng lnh: a. more

b. less

c. cat

d. Tt c u ng

68. to tp tin new cha ni dung ca hai tp tin data v odd, ta dng lnh: a. cp data odd > new

b. cp data odd >> new

c. cat data odd > new d. Tt c u ng

69. /doc l mt th mc, lnh no sai trong cc lnh di y? a. ln s /doc mydoc b. ln /doc mydoc

c. rm rf /doc

d. cp s /doc mydoc

70. xem hng dn cch dng lnh ls, ta thc hin lnh:

a. help ls

b. list ls

c. man ls

d. doc ls

71. Lnh no xa tp tin c tn l -abc

a. rm f abc b. rm i abc c. rm -- -abc d. rm \ -abc

72. Lnh no tng ng vi lnh sau mkdir p /file/doc/priv? a. mkdir parent /priv/doc/file

b. mkdir /file /doc /priv c. mkdir /priv /doc /file

d. mkdir p /priv/doc/file

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73. Trong trnh son tho vi, lnh no dng ghi v thot? a. wq

b. wq!

c. :wq d. :qw

74. Lnh no tng ng vi lnh sau chmod u+rwx,g=rx,o-rwx myfile a. chmod 027 myfile

b. chmod 757 myfile

c. chmod 750 myfile d. Khng cu no ng

75. chuyn v th mc ch ca ngi dng hin hnh, ta dng lnh? a. pwd

b. cd ~ c. cd ..

d. cd /home

76. Trong RedHat Linux, tn ti khon ngi dng: a. L duy nht b. Phn bit ch thng vi ch hoa c. Khng c bt u bng mt k s

d. Tt c u ng

77. Tp tin no cha khai bo a ch my ch DNS? a. /etc/named

b. /etc/resolv.conf

c. /etc/sysconfig/resolv.conf

78. Lnh no tng ng vi lnh sau chown sales myfile

a. chown sales:sales myfile b. chgroup sales:sales myfile

c. chgrp sales myfile

d. chmod sales myfile

79. Tp tin /etc/sysconfig/network c cha thng tin v:

a. Tn my tnh v default gateway b. Cc thit b c s dng kt ni mng c. Cc script dng trong kt ni PPP v SLIP d. Trng thi ca mng

80. kha ti khon user, ta dng lnh? a. usermod L user

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b. passwd l user c. A v B u sai d. A v B u ng

81. Tin trnh init: a. Lun c PID = 1;

b. Khng th kt thc c c. Gi khi ng cc tin trnh khc d. Tt c u ng

82. Tp tin no c s dng thay i mc thi hnh mc nh (default runlevel)? a. /etc/grub.conf

b. /etc/runlevel

c. /etc/inittab

d. /etc/init.conf

83. Trong trnh son tho vi, chuyn v ch lnh, ta nhn: a. ESC

b. INS

c. Ctrl + Shift

d. Tt c u sai

84. C th to mt Symbolic Link ch ti mt tp tin khng tn ti hay khng? a. C

b. Khng

c. Ty trng hp d. Tt c u sai

85. Tp tin script no cha khai bo nh tuyn? a. /etc/sysconfig/network

b. /etc/sysconfig/route

c. /etc/sysconfig/static-routes

d. /etc/sysconfig/network-scripts/routes

86. Khi to mt ti khon ngi dng, thng tin no bt buc phi c cung cp? a. Tn y (Full Name) b. Tn ng nhp c. M nhn din ti khon (UID) d. Shell

87. Nu mun xem crond c cu hnh khi ng mc thi hnh (runlevel) no, ta thi hnh lnh? a. chkconfig -list -crond

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b. chkconfig -l crond

c. chkconfig --list crond

d. chkconfig crond

88. /xyz l mt symbolic link ca /tmp/dir, lnh no sau y cho php ta chuyn vo th mc /tmp/dir? a. cd L /xyz b. cd P /xyz

c. cd /xyz

d. Tt c u sai

89. bt ngay lp tc chc nng chuyn gi tin (IP Forward), ta thc hin: a. Sa ni dung tp tin /etc/sysctl.conf b. Thi hnh lnh echo 1> /proc/sys/net/ipv4/ip_forward c. Thi hnh lnh echo 1> net.ipv4.ip_forward d. Thi hnh lnh ./proc/sys/net/ipv4/ip_forward=1

90. Cho bit ngha ca mt mc t crond nh sau: 10 5 * * * /bin/foo a. Thc thi /bin/foo vo lc 10:05 sng mi ngy b. Thc thi /bin/foo vo 10 thng 5 hng nm c. Thc thi /bin/foo vo lc 5:10 sng mi ngy d. Khng cu no ng

91. xem thng tin v phn chia a cng trn h thng, ta dng lnh: a. fdisk /dev/had

b. fdisk /dev/sc

c. list /dev/had

d. fdisk l

92. kim tra dung lng a cng cn trng, ta dng lnh: a. du a b. df a c. df

d. du

93. kt thc tin trnh c PID=1, ta thi hnh lnh: a. kill 15 1 b. kill 9 1 c. kill p 1 d. Khng c lnh no

94. Th mc /dev cha: a. Cc tp tin dng pht trin h thng

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b. Cc tp tin rc, tm thi c. Cc tp tin i din trng thi hin hnh ca h thng d. Cc tp tin i din thit b

95. to thm mt a ch IP 192.168.10.5/24 cho giao tip mng eth0, ta dng lnh a. alias eth0 192.168.10.5 up

b. ifconfig eth1:0 192.168.10.5 netmask 255.255.255.0 up

c. ifconfig eth0:0 192.168.10.5

d. if-cfg eth0:0 192.168.10.5

96. Trong tp tin khai bo cc tham s cho zone, bn ghi SOA: a. Bt buc phi c b. c t ty trong tp tin c. c php khai bo nhiu ln d. Tt c u ng

97. sao chp tt c ni dung c trong th mc /dir vo th mc /tmp, thi hnh lnh: a. cp r /dir /tmp b. cp a /dir /tmp c. cp --parents /dir /tmp

d. Tt c u ng

98. Chng trnh no dng kim tra cu hnh dch v DNS? a. dnscheck

b. BIND

c. nslookup

d. resolve

99. Trong tp tin httpd.conf khai bo no di y l sai: a. Alias /image/ /ftp/pub

b. DocumentRoot /var/www/html

c. ServerRoot /etc/httpd

d. DirectoryIndex index.cgi

100.Lnh no dng xa ton b th mc /dir a. rm f /dir b. rm r /dir c. rmdir /dir

d. rmdir p /dir

101. tm tt c cc s khc nhau gia hai tp tin, ta dng lnh: a. cmp

b. diff

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c. wc

b. Tt c u sai

102. Cu trc inode trong extfs, bao gm: a. 10 con tr b. 13 con tr c. 16 con tr d. Khng cu no ng

103. Lnh no dng lit k danh sch tt c cc tp tin c tn phn m rng khng cha cc k t trong khong t x n w trong th mc hin hnh a. ls *.!x | .!w

b. ls *.[!x-w]

c. ls ! *.[xz]

d. ls *.[!xw]

104. to ti khon ngi dng abc l thnh vin ca nhm group, ta dng lnh: a. useradd g group abc b. useradd G group abc c. useradd m group abc d. useradd group abc

105 : C t nht bao nhiu patition cn c to ra khi ta ci t LINUX a. 1

b. 2

c. Ln hn 2

106 : File no trong s cc file di y cha cc bin mi trng khi s dng Bash Shell

a. ~/.profile

b. /bash

c. /etc/profile

d. ~/bash

107 :Tt c cc nhm c lit k trong file /etc/group .Mi mt nhm c th hin trn mt dng.Hy xc nh trt t ng ca cc trng trn thc th ny : a. groupname, password, GID, member list

b. GID, groupname, password, member list

c. groupname, GID, password, member list

d. GID, member list, groupname, password

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108 : Bn s dng lnh sau useradd m sapa song user sapa khng ng nhp vo c. ng nhp c ta phi lm g ? a. Cn ng k mt khu cho user sapa bng lnh password sapa b. Phi to th mc home cho sapa v to quyn cho php truy cp. c. Bn cn bin tp li file /etc/passwd v ng k shell cho acount sapa d. Tn ngi dng nh hn 5 k t.

109: Bn to mt user sinhvien mi bng cch thm vo /etc/passwd file mt dng nh sau sinhvien:abcdef:501:501:tensinhvien:/home/sinhvien:/bin/bash

Sau sinh vien gp bn v ni khng logon vo h thng c. Bn kim tra v thy tn user v mt khu u ng .iu g xy ra? a. UID v GID ging nhau b. Bn khng g khong trng hoc ngoc kp vo nhng v tr cn thit. c. Bn khng th nhp mt khu trc tip .Cn dng lnh passwd command ng k mt khu cho user. d. Tn ngi dng qu ngn, ti thi n phi c di 6 k t.

110 : M file /etc/passwd ta thy c cc dng .Trt t no sau y ca cc trng l ng: a. username, UID, GID, home directory, command, comment

b. username, UID, GID, comment, home directory, command

c. UID, username, GID, home directory, comment, command

d. username, UID, group name, GID, home directory, comment

111 : Bn c mt my tnh v ang ci Windows98 v mun ci thm Linux trn song bn khng cn khng gian a cng ci t.Bng cch no ti u nht bn c th thc hin cng vic trn a. S dng Disk Manager thay i li kch thc (resize ) ca partition cha Windows 98.

b. Phn hoch li a cng t u; ci li Windows 98 v sau ci Linux. c. Khng th ci Windows 98 v Linux trn cng mt my tnh. d. To mt directory trong Windows 98 v ci Linux vo directory ny.

112 :Bn ang ci Linux ln my tnh ca bn.Bn mun c 5 partitions khc nhau v to ra c 4 partition.Cn partition th 5 khng cch no to ra c.iu g xy ra : a. Hard drive ca bn khng ch to hn 4 partition. b. Bn phi to swap partition . c. Bn to ra 4 primary partitions. d. Linux khng cho php to hn 4 partitions.

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113 : Quan st file /etc/passwd , bn thy trong trng password cha k hiu x. ngha ca k t ny l g? a. Password c m ho. b. Bn ang s dng shadow password. c. Tt c passwords u rng. d. Tt c passwords u ht hn.

114 : Sau khi Dung ri khi cng ty ,bn dng lnh userdel dung xo user ny.Mu tin ca user ny trong file etc/passwd b xo , tuy vy trong home directory c th vn cn th mc ca user ny. Bn c th dng lnh no sau y khng nh home directory cng b xo? a. userdel m dung b. userdel u dung c. userdel l dung d. userdel r dung

115 : Bn Dung c username l sapa.Bn y ni rng qun mt mt khu ng nhp.Lnh no s gip bn Dung reset li mt khu ca mnh. a. passwd Dung

b. resetpassw

c. su sapa

d. passwd sapa

116 : File no xc nh tt c cc user trn h thng ca bn a. /etc/passwd

b. /etc/users

c. /etc/password

d. /etc/user.conf

117 : Nhng user name no sau y khng ng a. Theresa Hadden

b. thadden

c. TheresaH

d. T.H.

118 : Dung lng nh nht cho php i vi cc swap partition l : a. 16 MB

b. 64 MB

c. 128 MB

d. 256 MB

119 : My tnh ca bn c hai a cng IDE v bn ang ci Linux trn chng.Mi a cng bn chia thnh hai patitions .Cc partition trn my ca bn c tn l g :

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a. hda1, hda2, hda3, hda4

b. hda1, hda2, hdb1, hdb2

c. sda1, sda2, sda1, sdb2

d. sda1, sda2, sda3, sda4

120 .Hy cho bit chng trnh sau y xut ra ni dung no ng : #!/bin/sh

myvar="Chao ban"

echo $myvar

echo 'message : $myvar'

echo "message : $myvar"

echo "message :\$myvar"

echo Nhap noi dung text

read myvar

echo '$myvar' se la $myvar

exit 0

a.

Chao ban

message : $mayvar

message : Chao ban

message : $myvar

Nhap noi dung text

Mot ngay dep troi

$myvar se la Mot ngay dep troi

b.

message : $mayvar

Chao ban

message : Chao ban

message : $myvar

Nhap noi dung text

Mot ngay dep troi

$myvar se la Mot ngay dep troi

c.

Nhap noi dung text

message : $mayvar

message : Chao ban

message : $myvar

Chao ban

Mot ngay dep troi

$myvar se la Mot ngay dep troi

d.

Chao ban

Nhap noi dung text

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message : $mayvar

message : $myvar

message : Chao ban

Mot ngay dep troi

$myvar se la Mot ngay dep troi