Netaxis IT Solutions Linux Administrator Interview Questions and Answers

Basic Linux Question

Q1. What is ftp port number?
Ans. 
FTP port number is 21.
• FTP port number is used for transferring files over a network.

• It is a default port number for FTP protocol.

• FTP clients connect to port 21 on the server to initiate a file transfer.

• FTP servers listen on port 21 for incoming connections.
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Q2. What is DHCP and how its working?
Ans. 
DHCP stands for Dynamic Host Configuration Protocol. It is a network protocol that automatically assigns IP addresses to devices on a network.
• DHCP server assigns IP addresses to devices on a network

• It also provides other network configuration information such as subnet mask and default gateway

• DHCP uses a lease mechanism to manage IP address assignments

• DHCP operates on the client-server model

• Example: When a device conne...read more
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Q3. What is Domain name System?
Ans. 
Domain Name System (DNS) is a system that translates domain names to IP addresses, allowing users to access websites using human-readable names.
• DNS is like a phone book for the internet, translating domain names (like google.com) to IP addresses (like 172.217.3.206).

• DNS servers store records of domain names and their corresponding IP addresses.

• DNS helps users access websites by resolving domain names to IP addresses in...read more
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