HP Global e-Business Operations Interview Questions, Process, and Tips

Q1. How many run level in Linux?
Ans. 
There are 7 run levels in Linux.
• Run levels are numbered from 0 to 6 in Linux.

• Each run level has a specific purpose and defines the state of the system.

• Run level 0 is used for system shutdown, while run level 6 is used for system reboot.

• Run level 1 is known as the single-user mode, used for system maintenance and troubleshooting.

• Run levels 2 to 5 are multi-user modes with different configurations.

• Run level 3 is typicall...read more
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Q2. How to add user and create directory in Linux?
Ans. 
To add a user and create a directory in Linux, you can use the 'useradd' command to create the user and 'mkdir' command to create the directory.
• Use the 'useradd' command followed by the username to create a new user. For example: 'useradd john'

• To create a directory, use the 'mkdir' command followed by the directory name. For example: 'mkdir /home/john'

• You can also specify additional options with the 'useradd' command, ...read more
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Q3. How to give permission to directory and file?
Ans. 
To give permission to a directory and file, you can use the chmod command in Linux or the Set-ACL command in Windows.
• In Linux, use the chmod command followed by the permission code and the directory/file name.

• In Windows, use the Set-ACL command followed by the directory/file name and the desired permissions.

• Permission codes in Linux include read (r), write (w), and execute (x) for owner, group, and others.

• In Windows, p...read more
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Q4. How to rename directory?
Ans. 
To rename a directory, use the 'mv' command followed by the current directory name and the desired new name.
• Use the 'mv' command followed by the current directory name and the desired new name

• Make sure you have the necessary permissions to rename the directory

• If the directory is located in a different location, provide the full path to the directory
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Q5. How to give ip and see ip address
Ans. 
To give and see IP address, use the command 'ipconfig' on Windows or 'ifconfig' on Linux/Mac.
• On Windows, open Command Prompt and type 'ipconfig'. Look for 'IPv4 Address' under the network adapter you're interested in.

• On Linux/Mac, open Terminal and type 'ifconfig'. Look for 'inet' or 'inet addr' under the network adapter you want to check.

• Alternatively, you can use the 'hostname -I' command on Linux/Mac to quickly see ...read more
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Q6. Where is locate user's password in linux
Ans. 
The user's password in Linux is stored in the /etc/shadow file.
• The /etc/shadow file contains the encrypted passwords for all the users on the system.

• Each line in the /etc/shadow file represents a user and their password information.

• The password field in the /etc/shadow file contains the encrypted password.

• The password is stored in a hashed format to enhance security.

• Only the root user or users with sufficient privilege
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Q7. What is port number of telne,sshd
Ans. 
The port number of telnet is 23 and the port number of sshd is 22.
• The port number of telnet is 23.

• The port number of sshd (Secure Shell Daemon) is 22.
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1 hour test with questions on logical reasoning mostly

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