Metclouds Technologies Interview Questions and Answers

Basic linux commands

Q1. Linux Commands for basic linux operations
Ans. 
Essential Linux commands for file management, system monitoring, and process control.
• ls: List directory contents. Example: 'ls -l' for detailed view.

• cd: Change directory. Example: 'cd /home/user' to navigate to user directory.

• cp: Copy files or directories. Example: 'cp file.txt /backup/' to copy file.

• mv: Move or rename files. Example: 'mv oldname.txt newname.txt' to rename.

• rm: Remove files or directories. Example: 'rm ...read more
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Q1. DNS resolution and ports
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Q1. IPv6 related questions
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Q1. Hosting related questions
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Q2. Different ports used in linux
Ans. 
Linux uses various ports for different services and applications.
• Port 22: SSH (Secure Shell)

• Port 80: HTTP (Hypertext Transfer Protocol)

• Port 443: HTTPS (HTTP Secure)

• Port 25: SMTP (Simple Mail Transfer Protocol)

• Port 53: DNS (Domain Name System)

• Port 3306: MySQL database

• Port 5432: PostgreSQL database
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