Teceze Consultancy Services IT Supporter Interview Questions and Answers

Held at the cafeteria

It was average but scenario based

Q1. What is VPN and how it works
Ans. 
VPN stands for Virtual Private Network, which allows users to securely connect to a private network over the internet.
• VPN encrypts data to ensure secure communication over public networks

• It masks the user's IP address to maintain anonymity

• VPN can be used to access region-restricted websites or services

• Common VPN protocols include OpenVPN, L2TP/IPsec, and IKEv2
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Q2. What are the IP classes
Ans. 
IP classes are a way to categorize IP addresses based on their network size and structure.
• There are five classes of IP addresses: A, B, C, D, and E.

• Classes A, B, and C are commonly used for assigning IP addresses to devices.

• Class D is reserved for multicast addresses.

• Class E is reserved for experimental use.

• Each class has a different range of possible IP addresses.
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