Linux certification sample question paper with answer set 11.
- You want to enable a service service-name for current run level (run level 5). Which command will you use to do so?
- runlevel service-name on
- enable service-name
- chkconfig service-name on
- chkconfig service-name enable
Answer — chkconfig service-name on
- Which directories contain the boot time scripts for the run level 5?
Answer — /etc/rc.d/rc5.d
- A runlevel script has the line #chkconfig 345 25 75. What is the meaning of this line?
- It is a comment
- It denotes that the script will run in runlevel 3,4,5
- It denotes that the script will run in runlevel 3, 4, 5 and the start priority is 25 and the stop priority is 75.
- The line gives an error
Answer — It denotes that the script will run in runlevel 3, 4, 5 and the start priority is 25 and the stop priority is 75.
- A user ran command badblocks -w on a device containing important data files. What will be the problem?
- No problem
- Data on the device will be erased
- Data on device will not be erased
- -w is invalid option to badblocks command
Answer — Data on the device will be erased
- You have downloaded a package in tar.gz format. How will you uncompress the file?
- Using tar xvf
- Using gunzip followed by tar xvf
- Using tar xvf followed by gunzip
- Using bzip2 followed by tar xvf
Answer — Using gunzip followed by tar xvf
- You want to create a user account john. The mail box of john should lie in the directory /var/temp.What line will you add in the file /etc/login.defs?
Answer — MAIL_DIR=/var/temp
- What does free command do?
- Frees RAM memory
- Frees swap memory
- gives the amount of free and used memory space of the system
- gives the amount of free and used memory of a filesystem
Answer — gives the amount of free and used memory space of the system
- Which command is used to print the processor type of a system?
- uname -r
- uname -n
- uname -p
- uname -k
Answer — uname -p
- A user wants to see the filename of a module currently loaded into the kernel. what should he do?
- modinfo modulename
- infomod modulename
- lsmod modulename
- modprobe modulename
Answer — modinfo modulename
- System administrator wants to allow the user Mac to access the at facility. What system administrator does?
- Add name on mac in /etc/at.allow
- Add name on mac in /etc/at
- don’t add name on mac in /etc/at.deny
- any of the above
Answer — Add name on mac in /etc/at.allow