Tag: linux

Questions Related to linux

  1. Mount the main partition, edit the /etc/passwd file to remove the root password, reboot.

  2. Mount the root partition, edit the /etc/passwd file to remove the root password, reboot.

  3. Mount the main partition, edit the /tmp/passwd file to remove the root password, reboot

  4. Mount the root partition, edit the /etc/passwds file to remove the root password, reboot

  5. none of the above


Correct Option: B
Explanation:

To recover the root password, the user needs to boot the system using a boot disk floppy. Then, they need to mount the root partition and edit the /etc/passwd file to remove the root password. Option C is the correct answer.

Option A is incorrect because it does not provide any solution to recover the root password.

Option B is incorrect because it suggests to mount the main partition instead of the root partition. Editing the /etc/passwd file of the main partition will not affect the root password.

Option D is incorrect because it suggests to edit the /tmp/passwd file instead of the /etc/passwd file. The /tmp directory is used for temporary files, and editing the /tmp/passwd file will not affect the root password.

Option E is incorrect because it suggests to edit the /etc/passwds file instead of the /etc/passwd file. There is no such file as /etc/passwds, so this option is invalid.

The Answer is: C. Mount the root partition, edit the /etc/passwd file to remove the root password, reboot.

Users on your network cannot print to a Linux printer. You decide to restart the printer daemon, which command would achieve that?

  1. topq printer-name

  2. enable printer-name

  3. restart printer-name

  4. up printer-name


Correct Option: C
Explanation:

To solve this question, the user needs to know the basic command to restart a printer daemon in Linux.

Now, let's go through each option and explain why it is right or wrong:

A. topq printer-name: This option is incorrect because the command "topq" is not a valid command in Linux. It does not exist and cannot be used to restart a printer daemon.

B. enable printer-name: This option is incorrect because the command "enable" is used to enable a printer, not restart the printer daemon. It does not restart the printer daemon.

C. restart printer-name: This option is incorrect because the command "restart" is not the correct command to restart a printer daemon in Linux. The correct command to restart the printer daemon is "systemctl restart cups".

D. up printer-name: This option is incorrect because the command "up" is not a valid command to restart a printer daemon. It does not exist in Linux.

The correct answer is:

The Answer is: C. restart printer-name

Which file does Linux use to resolve hostnames?

  1. /etc/hostname.conf

  2. /etc/dns.conf

  3. /etc/host.conf

  4. /etc/resolve.conf


Correct Option: C

AI Explanation

To answer this question, you need to understand how Linux resolves hostnames.

Linux uses the /etc/host.conf file to resolve hostnames. This file contains the configuration settings for the hostname resolution process.

Let's go through each option to understand why it is correct or incorrect:

Option A) /etc/hostname.conf - This option is incorrect because Linux does not use the /etc/hostname.conf file to resolve hostnames.

Option B) /etc/dns.conf - This option is incorrect because Linux does not use the /etc/dns.conf file to resolve hostnames.

Option C) /etc/host.conf - This option is correct. Linux uses the /etc/host.conf file to resolve hostnames. This file contains the configuration settings for the hostname resolution process.

Option D) /etc/resolve.conf - This option is incorrect. While the /etc/resolve.conf file exists in Linux systems, it is used to configure the DNS (Domain Name System) resolver, not for hostname resolution.

The correct answer is C) /etc/host.conf. This option is correct because Linux uses the /etc/host.conf file to resolve hostnames.

  1. Terminal Interpreter

  2. The command to change the time

  3. The command to compare text files

  4. A newsreader


Correct Option: D
  1. Something you do to a watermelon

  2. A command to delete multiple files

  3. A network bit format

  4. A command shell


Correct Option: D

What is the DOS LPT1 port in Linux?

  1. /dev/lpt0

  2. /dev/lpt1

  3. /dev/lp0

  4. /dev/lp1

  5. DOSLPT1


Correct Option: C

AI Explanation

To answer this question, we need to understand the concept of the DOS LPT1 port and its equivalent in Linux.

In DOS (Disk Operating System), LPT1 is a parallel port used for connecting printers or other parallel devices. In Linux, parallel ports are represented as device files under the /dev directory.

The correct answer is option C) /dev/lp0. In Linux, the equivalent device file for the DOS LPT1 port is /dev/lp0. This means that if you want to access the parallel port in Linux, you would use /dev/lp0 instead of LPT1.

Option A) /dev/lpt0 - This option is incorrect because the correct device file for the DOS LPT1 port in Linux is /dev/lp0, not /dev/lpt0.

Option B) /dev/lpt1 - This option is incorrect because the correct device file for the DOS LPT1 port in Linux is /dev/lp0, not /dev/lpt1.

Option C) /dev/lp0 - This option is correct because the device file /dev/lp0 is the equivalent of the DOS LPT1 port in Linux.

Option D) /dev/lp1 - This option is incorrect because the correct device file for the DOS LPT1 port in Linux is /dev/lp0, not /dev/lp1.

Option E) DOSLPT1 - This option is incorrect because the equivalent device file in Linux is not called DOSLPT1. In Linux, it is represented as /dev/lp0.

The correct answer is option C) /dev/lp0. This option is correct because it represents the equivalent device file for the DOS LPT1 port in Linux.

  1. The directory name contains illegal characters

  2. You are not logged in as root

  3. The hard disk is full

  4. The directory is not empty

  5. None are likely problems


Correct Option: D