Linux Interview Questions for Experienced

How to check UID for user?.

Explain passwd file in Linux.

What is crontab and explain each filed for crontab?.

What is @ in crontab and when we are using?.

Explain sudoer file in Linux.

What is DHCP server?.

Explain Yum server.

What is Kernal?.

What is Grub?.

What is NFS and How to Build NFS server?

What is router and switch?.

How to create user with syntax?.

What is yum config file?.

What is DNS?.

What is service name for DNS?.

How to check Kernel version?.

How to check port connection?.

How to find subnet?.

What is main file for NFS?.

How to build server?.