Altnix Technologies 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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Test conducted in paper (40 question ).
Candidate details are filled in form.these are attached with resume.

Q1. Ssh port number? Difference between rpm and yum? Remove text file in Linux? Chmod use?
Ans. 
SSH port number is 22 by default. RPM is a package manager for Red Hat-based systems, while YUM is a higher-level package manager that uses RPM as its backend. To remove a text file in Linux, you can use the 'rm' command. Chmod is a command used to change the permissions of a file or directory.
• SSH port number is typically 22, but it can be changed in the SSH server configuration file.

• RPM is a low-level package manager ...read more
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Q1. Project and course completion certificate
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