1) Which command is used to count the total number of lines, words and characters contained in a file?
A) count
B) ls
C) wc
D) None of the above
Ans: C) wc
2) Which command is used to find the kernel version?
A) Kernel
B) uname –r
C) uname –v
D) version
Ans: B) uname -r
3) Which of the following command is used to create file Linux?
A) cat
B) touch
C) echo
D) all of the above
Ans: D) all of the above
4) Which command is used to change the permission of file?
A) chmod
B) chown
C) mv
D) umask
Ans: A) chmod
5) Out of following, which is not the communication command?
A) ping
B) telnet
C) mesg
D) grep
Ans: D) grep
6) Where system and mail logs are found in Linux?
A) /var/log/
B) /etc/log/
C) /mail/
D) All of the above
Ans: A) /var/log/
7) How many standard run levels are present in Linux?
A) 6
B) 7
C) 1
D) 3
Ans: B) 7
8) Where we will found the record of new user created by superuser?
A) /etc/default/
B) /etc/passwd/
C) /etc/default/useradd/
D) /etc/
Ans: B) /etc/passwd
9) How to check the password aging of any user?
A) chown –l <username>
B) chage –l <username>
C) chage –r <username>
D) option B and C
Ans: B) chage –l <username>
10) Which port is being utilized for File Transfer Protocol (FTP)?
A) 22
B) 21
C) 17
D) 39
Ans: B) 21
11) Which port is being utilized for HyperText Transfer Protocol (HTTP) for World Wide Web (WWW) services?
A) 80
B) 102
C) 101
D) None of the above
Ans: A) 80
12) Which service allows remote hosts to mount file systems over a network?
A) ssh
B) NFS
C) DNS
D) DHCP
Ans: B) NFS
13) Where the kernel parameters are defined in Linux?
A) /etc/sysctl.conf
B) /etc/proc/
C) /var/
D) Both B and C
Ans: A) /etc/sysctl.conf
14) Where we can find the CPU information in Linux?
A) /etc/sysctl.conf
B) /etc/proc/cpuinfo
C) /proc/cpuinfo
D) None of the above
Ans: C) /proc/cpuinfo
15) Which directory is for temporarily mounted file systems?
A) /lib/
B) /etc/
C) /proc/
D) /mnt/
Ans: D) /mnt/
16) What is the significance of /usr?
A) Stores temporary files.
B) Stores application programs
C) Stores log files, mails & other data
D) This is root directory
Ans: B) Stores application program
17) Which of the following command is used for back up in Linux?
A) mv
B) cp
C) rsync
D) None of the above
Ans: C) rsync
18) Proc file system provides information about?
A) Processes
B) Processor
C) Pseudo File System
D) Proxy Server
Ans: A) Processes
19) The files of /proc directory are
A) Stored in secondary memory
B) Generated by the kernel
C) IP address of the system
D) None of the above
Ans: B) Generated by the kernel
20) How to run the process in background?
A) &
B) *
C) !
D) ?
Ans: A) &
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