operating systems Online Quiz - 31

Description: operating systems Online Quiz - 31
Number of Questions: 20
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Tags: operating systems
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Choose which is not a display manager xdm , gdm , kdm , ldm , lxdm , adm

  1. lxdm & ldm

  2. ldm & adm

  3. adm & lxdm

  4. xdm & adm

Correct Option: B

What is the difference between Hard Link and Soft Link?

  1. Hard links share the same data blocks on the hard disk.Where as for soft link seperate file is created.

  2. Hard link: Associate two or more file names with the same inode.Where as soft Link is a small file pointing to another file.

  3. Both as same in case of implementation, only difference is in the size of new file created.

  4. Hard Link create a new seperate file and that is not related with old file.A soft link contains the path to the target file instead of a physical location on the hard disk.

Correct Option: B

What is "dselect" in Linux Operating System?

  1. It is a package manager for Debian Systems.

  2. It is a package manager for Red Hat Systems.

  3. Command to uninstall programs.

  4. Command to un-select any selection.

Correct Option: A
  1. Base Windows system in LINUX.

  2. A low-level interface which communicates between base system,network and Higher level programs.

  3. A program which provides GUI to LINUX Systems.

  4. Its a replacement for Windows Manager.

Correct Option: B
  1. There is no such command in LINUX OS.

  2. Probe a module into kernel.

  3. To determine card's chipset Information.

  4. None of the Above.

Correct Option: C
  1. "libraryname.a" and "libraryname.a.version"

  2. "libraryname.a" and "libraryname.so.version"

  3. "libraryname" and "libraryname.so.version"

  4. There exist only one file for one shared library.

Correct Option: B
  1. Error : syntax used with awk is wrong.

  2. prints names of logged-in users and time of login.

  3. Display output of who with $1 and $5 at the end.

  4. None of the above.

Correct Option: B
  1. Execute "ls" and "date" command at 12pm on 31st July.

  2. Execute "ls" and "date" command at 12pm on 31st July and mail output to owner of task.(User who had initiated that at command)

  3. Execute "ls" and "date" command at 12pm on 31st July and mail output to root.

  4. Execute "ls" and "date" command at 12pm on 31st July but no output.

Correct Option: B
  1. Change the inode number of the file

  2. Change the inodes count.

  3. Change the content of the file.

  4. change the file permission

Correct Option: A
  1. Send the mail to spamwebsite owner

  2. Block 25 port in the firewall

  3. Change the port number of SMTP

  4. Clean the system with anti

Correct Option: D

What is SELINUX?

  1. Firewall

  2. Remote support

  3. Access rules

  4. Virus Scanner

Correct Option: C

What is the use of /etc/nsswitch.conf file?

  1. DNS resolution

  2. Name resolution priority

  3. Host configuration.

  4. backup Configuration

Correct Option: B
  1. Use nmap command

  2. Modify the port number in /etc/hosts file.

  3. Modify the port number in /etc/services file

  4. Modify the port number in /etc/resolv.conf file

Correct Option: C
  1. Dynamic DNS

  2. Root DNS

  3. CNAME

  4. Mail exchanger

Correct Option: D
  1. use access file

  2. use mail file

  3. Configure single domain

  4. use netstat command

Correct Option: A

how to convert shell script to binary file

  1. using java

  2. shc

  3. Change the permission of script.

  4. using VB

Correct Option: B

what is the command used for recovering deleted files?

  1. find

  2. dump

  3. get

  4. grep

Correct Option: D
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