Extramarks Education System Engineer Interview Questions and Answers

Q1. How to manage and configure postfix mail server.
Ans. 
Postfix mail server can be managed and configured using configuration files and command line tools.
• Edit the main configuration file /etc/postfix/main.cf to make changes to the server settings

• Use postconf command to view or change configuration parameters

• Restart the postfix service after making changes for them to take effect

• Utilize tools like postmap to manage lookup tables for postfix

• Monitor mail server logs for troub
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Q2. OS go to maintenance mode, how to fix it.
Ans. 
To fix an OS in maintenance mode, reboot the system, check for any recent changes or updates, run diagnostics, and restore from a backup if necessary.
• Reboot the system to see if it resolves the issue

• Check for any recent changes or updates that may have caused the OS to go into maintenance mode

• Run diagnostics to identify any hardware or software issues

• Restore the OS from a backup if needed
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Aptitude test is to test the Individual skill

Q1. How many programing language you know
Ans. 
I know multiple programming languages
• I am proficient in Java and Python

• I have basic knowledge of C++ and JavaScript

• I am currently learning Ruby and Swift
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Q1. What are your salary expectations?
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Q2. Why should we hire you?
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Q3. Tell me about yourself.
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