TCS iON Softwaretest Engineer Interview Questions and Answers

Topics:
Basis mathematics
Reasoning
Verbal

1hr aptitude and 2 hr coding

Q1. What is hub and router
Ans. 
A hub is a networking device that connects multiple devices in a network, while a router is a networking device that forwards data packets between computer networks.
• Hub operates at physical layer of OSI model

• Hub broadcasts data to all devices in the network

• Router operates at network layer of OSI model

• Router forwards data packets based on IP addresses

• Example of hub: Ethernet hub

• Example of router: Wi-Fi router
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Q2. Difference between switch and router
Ans. 
Switch is used to connect devices within a network, while a router is used to connect different networks together.
• Switch operates at layer 2 of the OSI model, while router operates at layer 3.

• Switch forwards data based on MAC addresses, while router forwards data based on IP addresses.

• Switch is typically used in LANs, while router is used to connect LANs or WANs.

• Switches are faster in forwarding data within a network, ...read more
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3 rounds of aptitude

Two coding questions are given

Medium and logical thinking

Easy, have to think for 2 mins and should talk about the topic

Q1. Generic questions and technical
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I am fresher i completed my graduation MCA in Visvesvaraya Technological University Kalaburgi