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TCS Network Engineer Interview Questions, Process, and Tips

Updated 21 Feb 2025

Top TCS Network Engineer Interview Questions and Answers

  • Q1. When two or more computers or communicating devices are in a room, on a floor in a building or in a campus, if connected is said to be connected on a LAN.
  • Q2. What is a Local Area Network?
  • Q3. 3. How DHCP works ? 4. What is APIPA IP addressing ? 5. Tell me about EIGRP ?
View all 17 questions

TCS Network Engineer Interview Experiences

25 interviews found

Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-
Round 1 - One-on-one 

(2 Questions)

  • Q1. What is LSA7 ?
  • Q2. What is Area in ospf?
Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(3 Questions)

  • Q1. What is ospf,vlan,bgp,tcp
  • Ans. 

    OSPF, VLAN, BGP, and TCP are all important networking protocols used in the field of network engineering.

    • OSPF (Open Shortest Path First) is a routing protocol used to determine the best path for data packets in a network.

    • VLAN (Virtual Local Area Network) is a method of creating multiple virtual networks within a single physical network.

    • BGP (Border Gateway Protocol) is an exterior gateway protocol used to exchange routi...

  • Answered by AI
  • Q2. Stp,eigrp,osi,technical
  • Q3. Current job experiance

Skills evaluated in this interview

Network Engineer Interview Questions Asked at Other Companies

asked in Movate
Q1. TCP/IP layers, why is transport needed for communication? What is ... read more
Q2. Study MPLS deeply: 1. What is MPLS ? 2. Purpose of MPLS ? 3. What ... read more
asked in Wipro
Q3. What is Stp and how it is work? What is root bridge
Q4. What is BGP? What is spilit horizon rule? How you configure BGP r ... read more
asked in BT Group
Q5. What is tenant and types? What will happen if we use same subnet ... read more
Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(2 Questions)

  • Q1. OSFP and its states
  • Ans. 

    OSPF (Open Shortest Path First) is a routing protocol used in IP networks to determine the best path for data packets.

    • OSPF has four states: Down, Init, 2-Way, Exstart, Exchange, Loading, and Full.

    • During the Down state, the router does not have any information about its neighbors.

    • In the Init state, the router sends Hello packets to discover neighbors.

    • The 2-Way state is when bidirectional communication is established bet...

  • Answered by AI
  • Q2. BGP, MPLS, VPN, Routers and Switches configuration, IOS upgrades

Skills evaluated in this interview

Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Coding Test 

Prepare the techinical

Round 2 - Coding Test 

Technically questions

Round 3 - HR 

(2 Questions)

  • Q1. Basic questions
  • Q2. Basic questions 2
Round 4 - One-on-one 

(2 Questions)

  • Q1. Payroll and ctc
  • Q2. Benefits and advantages
  • Ans. 

    Benefits and advantages of being a Network Engineer include high demand, competitive salary, opportunities for growth, and job security.

    • High demand for network engineers in various industries

    • Competitive salary compared to other IT roles

    • Opportunities for growth and advancement in the field

    • Job security due to the increasing reliance on technology and networks

    • Ability to work on cutting-edge technologies and projects

  • Answered by AI

TCS interview questions for designations

 L2 Network Engineer

 (2)

 Trainee Network Engineer

 (1)

 Network Engineer L1

 (1)

 Senior Network Engineer

 (1)

 Network Administrator

 (14)

 Network Analyst

 (1)

 Network Security Engineer

 (2)

 Network Support Engineer - Network Administration

 (1)

Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
Selected Selected

I applied via Recruitment Consulltant and was interviewed in Mar 2024. There was 1 interview round.

Round 1 - Technical 

(5 Questions)

  • Q1. Tell about SD-WAN architechture
  • Ans. 

    SD-WAN architecture is a software-defined approach to managing wide area networks.

    • SD-WAN uses software to control the connectivity, management, and services between data centers and remote branches.

    • It allows for centralized control and automation of network traffic.

    • SD-WAN can prioritize critical applications and optimize bandwidth usage.

    • Examples of SD-WAN vendors include Cisco, VMware, and Silver Peak.

  • Answered by AI
  • Q2. Explain STP selection process
  • Ans. 

    STP selection process determines the root bridge and designated ports in a network.

    • STP selection process starts by electing a root bridge based on the lowest bridge ID.

    • Each switch then determines the best path to the root bridge.

    • Designated ports are selected on each segment based on the lowest path cost to the root bridge.

    • Non-designated ports are put in blocking state to prevent loops in the network.

  • Answered by AI
  • Q3. How BR & DBR elected
  • Q4. OSPF LSA types & uses
  • Ans. 

    OSPF LSA types include Router LSA, Network LSA, Summary LSA, and ASBR Summary LSA, each serving different purposes in OSPF routing.

    • Router LSA: Describes the router's directly connected links.

    • Network LSA: Represents multi-access networks and lists all routers connected to the network.

    • Summary LSA: Summarizes routes from one area to another.

    • ASBR Summary LSA: Summarizes external routes injected into OSPF by an ASBR.

    • LSA typ...

  • Answered by AI
  • Q5. What are the BGP states
  • Ans. 

    BGP states refer to the different stages a BGP session goes through during establishment and maintenance.

    • Idle state: Initial state when BGP process starts

    • Connect state: Attempting to establish a TCP connection

    • OpenSent state: Sending an OPEN message to peer

    • OpenConfirm state: Waiting for an OPEN message from peer

    • Established state: BGP peers are fully synchronized and exchanging routing information

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Understand the basic concepts

Skills evaluated in this interview

Get interview-ready with Top TCS Interview Questions

Network Engineer Interview Questions & Answers

user image Sanjana Saxena

posted on 8 Jun 2024

Interview experience
3
Average
Difficulty level
-
Process Duration
-
Result
-
Round 1 - One-on-one 

(2 Questions)

  • Q1. What is data link layer and network layer
  • Ans. 

    Data link layer is responsible for node-to-node communication, while network layer is responsible for end-to-end communication.

    • Data link layer operates at Layer 2 of the OSI model and is responsible for framing, error detection, and flow control.

    • Network layer operates at Layer 3 of the OSI model and is responsible for logical addressing, routing, and path determination.

    • Examples of data link layer protocols include Ethe...

  • Answered by AI
  • Q2. What is the difference between firewall and router
  • Ans. 

    Firewall filters traffic based on security rules, while router forwards data packets between networks.

    • Firewall is used to block or allow traffic based on security rules, while router is used to forward data packets between networks

    • Firewall operates at the network layer (Layer 3) or above, while router operates at the network layer (Layer 3)

    • Firewall can inspect and filter traffic based on IP addresses, ports, protocols,...

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Good communication skills and be confident.

Skills evaluated in this interview

Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
No response

I was interviewed in Aug 2024.

Round 1 - HR 

(2 Questions)

  • Q1. How to work in previous company
  • Q2. How to wor your Rool and contribution
  • Ans. 

    I work with my team to design, implement, and maintain network infrastructure to ensure optimal performance and security.

    • Collaborate with team members to plan and design network infrastructure

    • Implement network solutions based on project requirements

    • Monitor and troubleshoot network issues to ensure optimal performance

    • Contribute to network security by implementing best practices and protocols

    • Document network configuratio

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Approach the good Communication skill
Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(2 Questions)

  • Q1. About tcpip dns osi f5
  • Q2. Dns dhcp lan wan
Interview experience
5
Excellent
Difficulty level
Easy
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Naukri.com and was interviewed in Mar 2024. There was 1 interview round.

Round 1 - Technical 

(1 Question)

  • Q1. What is the programming language
  • Ans. 

    Programming language is a set of instructions that tells a computer how to perform specific tasks.

    • Programming languages are used to create software, websites, and applications.

    • Examples of programming languages include Java, Python, C++, and JavaScript.

    • Each programming language has its own syntax and rules for writing code.

  • Answered by AI

Network Engineer Interview Questions & Answers

user image Akash Chandran

posted on 9 May 2024

Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
-

I applied via Campus Placement

Round 1 - Technical 

(1 Question)

  • Q1. Switch firewall router
Round 2 - HR 

(1 Question)

  • Q1. Interview experience

TCS Interview FAQs

How many rounds are there in TCS Network Engineer interview?
TCS interview process usually has 1-2 rounds. The most common rounds in the TCS interview process are Technical, Resume Shortlist and HR.
How to prepare for TCS Network Engineer interview?
Go through your CV in detail and study all the technologies mentioned in your CV. Prepare at least two technologies or languages in depth if you are appearing for a technical interview at TCS. The most common topics and skills that interviewers at TCS expect are Network Engineering, Switching, Routing, Networking and Firewall.
What are the top questions asked in TCS Network Engineer interview?

Some of the top questions asked at the TCS Network Engineer interview -

  1. When two or more computers or communicating devices are in a room, on a floor i...read more
  2. What is a Local Area Netwo...read more
  3. 3. How DHCP works ? 4. What is APIPA IP addressing ? 5. Tell me about EIGR...read more
How long is the TCS Network Engineer interview process?

The duration of TCS Network Engineer interview process can vary, but typically it takes about less than 2 weeks to complete.

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TCS Network Engineer Interview Process

based on 22 interviews

2 Interview rounds

  • Technical Round
  • HR Round
View more
TCS Network Engineer Salary
based on 1.6k salaries
₹2 L/yr - ₹10 L/yr
27% more than the average Network Engineer Salary in India
View more details

TCS Network Engineer Reviews and Ratings

based on 157 reviews

3.8/5

Rating in categories

3.6

Skill development

3.7

Work-life balance

2.9

Salary

4.5

Job security

3.7

Company culture

2.7

Promotions

3.4

Work satisfaction

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