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TCS Interview Questions, Process, and Tips

Updated 10 Apr 2025

Top TCS Interview Questions and Answers

  • Q1. How charging protocol works in electric vehicle and what is purpose of charging pin at charging inlet
  • Q2. What is basic function of firewall.
  • Q3. What is the difference between Software Development Life Cycle (SDLC) and Software Testing Life Cycle (STLC)?
View all 154 questions

TCS Interview Experiences

346 interviews found

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

(1 Question)

How do you reverse a string in Java?

  • Q1. Just asked few basic questions on java language
Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(1 Question)

  • Q1. Angular pipeline

System Engineer Interview Questions Asked at Other Companies for Experienced

asked in Infosys
Q1. Quick Sort Problem Statement You are provided with an array of in ... read more
Q2. What is Matlab, which tools you have used to perform development ... read more
asked in Siemens
Q3. what is the disadvantage or drawback in S7 controller?
Q4. What is IPSEC VPN? Different between phase 1 and Phase 2
Q5. Difference between HTTP and HTTPS, What is UDP and TCP, Port numb ... read more
Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(1 Question)

  • Q1. Which are the locators used im selenium
Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Aptitude Test 

Aptitude test was bit easy, it took 3hrs with coding included

Round 2 - Technical 

(2 Questions)

  • Q1. They asked me about basics of python and SQL queries
  • Q2. Operators, list, tuple and sql queries
Round 3 - HR 

(1 Question)

  • Q1. HR asked about shift timings and job location

TCS interview questions for designations

 Assistant System Engineer

 (387)

 System Engineer Hardware

 (68)

 System Software Engineer

 (3)

 Junior System Engineer

 (2)

 System Engineer Analyst

 (2)

 Linux System Engineer

 (1)

 IT System Engineer

 (8)

 System Support Engineer

 (1)

Interview experience
4
Good
Difficulty level
Easy
Process Duration
2-4 weeks
Result
Selected Selected

I applied via LinkedIn and was interviewed in Dec 2023. There were 4 interview rounds.

Round 1 - HR 

(2 Questions)

  • Q1. About skills experiences and other background information
  • Q2. Profile shortlist
Round 2 - Technical 

(2 Questions)

  • Q1. Power BI desktop and service questions, Dax, about previous projects
  • Q2. SQL related questions
Round 3 - Behavioral 

(2 Questions)

  • Q1. More in depth on project related tasks and other technical questions
  • Q2. Scenario based questions
Round 4 - HR 

(1 Question)

  • Q1. Background and salary discussion

Interview Preparation Tips

Topics to prepare for TCS System Engineer interview:
  • Power Bi
  • SQL
  • Dax
  • Communication

Get interview-ready with Top TCS Interview Questions

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

(3 Questions)

  • Q1. Basic Pysthon and Sql question
  • Q2. Diff b/w list and tuple
  • Ans. 

    List is mutable, tuple is immutable in Python.

    • List can be modified, tuple cannot be modified

    • List uses square brackets [], tuple uses parentheses ()

    • List is slower than tuple for iteration and indexing

    • List is used for homogeneous elements, tuple for heterogeneous elements

  • Answered by AI
  • Q3. Use of cascade, joins
  • Ans. 

    Cascade and joins are used in database management to establish relationships between tables and retrieve data efficiently.

    • Cascade is used to automatically perform a certain action on related records when a primary record is modified or deleted.

    • Joins are used to combine rows from two or more tables based on a related column between them.

    • Types of joins include inner join, outer join, left join, and right join.

    • Example: SE...

  • Answered by AI

Skills evaluated in this interview

Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
-
Round 1 - One-on-one 

(1 Question)

  • Q1. Eg. Testing basics
Round 2 - Technical 

(1 Question)

  • Q1. Skills related questions
Round 3 - HR 

(1 Question)

  • Q1. Salary negotiation wrt market

Interview Preparation Tips

Interview preparation tips for other job seekers - Be ready with basics of what you are applying for.
Always be for sure regarding the salary and location and get that confirmation in mail from the HR, not just verbal confirmation.
Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I appeared for an interview in Mar 2024.

Round 1 - Technical 

(2 Questions)

  • Q1. Based on my worked projects
  • Q2. Java based deeply
Round 2 - Behavioral 

(1 Question)

  • Q1. Situation based
Round 3 - HR 

(2 Questions)

  • Q1. Tell us About yourself
  • Ans. 

    I am a dedicated and experienced System Engineer with a strong background in network infrastructure and troubleshooting.

    • Over 5 years of experience in designing, implementing, and maintaining network systems

    • Proficient in troubleshooting network issues and optimizing system performance

    • Skilled in working with various operating systems and network protocols

    • Certified in Cisco networking technologies such as CCNA and CCNP

    • Str...

  • Answered by AI
  • Q2. Why do you want to join tcs
  • Ans. 

    I want to join TCS because of its reputation for innovation, global presence, and opportunities for career growth.

    • TCS is known for its cutting-edge technology solutions and innovation in the IT industry

    • TCS has a strong global presence with offices in multiple countries, providing opportunities for international exposure

    • TCS offers a wide range of projects and clients, allowing for diverse learning experiences and career...

  • Answered by AI
Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(4 Questions)

  • Q1. What's the use of cascade
  • Ans. 

    Cascade is a technique used in engineering to control multiple processes or systems in a sequential manner.

    • Cascade is used to ensure that the output of one system becomes the input of another system.

    • It helps in achieving better control and coordination between interconnected systems.

    • Cascade control is commonly used in industries like chemical processing, power generation, and water treatment.

    • An example of cascade contr...

  • Answered by AI
  • Q2. Query optimization
  • Q3. Spark architecture
  • Q4. List vs tuple in python
  • Ans. 

    List is mutable, tuple is immutable in Python.

    • List can be modified, tuple cannot be modified

    • List uses square brackets [], tuple uses parentheses ()

    • List is used for collections of items that may change, tuple is used for fixed collections

  • Answered by AI

Skills evaluated in this interview

System Engineer Interview Questions & Answers

user image Anupama Bali

posted on 28 Feb 2025

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

(1 Question)

  • Q1. Java fundamental

TCS Interview FAQs

How many rounds are there in TCS System Engineer interview for experienced candidates?
TCS interview process for experienced candidates usually has 2-3 rounds. The most common rounds in the TCS interview process for experienced candidates are Technical, HR and Aptitude Test.
What are the top questions asked in TCS System Engineer interview for experienced candidates?

Some of the top questions asked at the TCS System Engineer interview for experienced candidates -

  1. How charging protocol works in electric vehicle and what is purpose of charging...read more
  2. What is basic function of firewall. ...read more
  3. What is the difference between Software Development Life Cycle (SDLC) and Softw...read more
How long is the TCS System Engineer interview process?

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

Tell us how to improve this page.

TCS Interview Process

based on 247 interviews

5 Interview rounds

  • Technical Round - 1
  • Technical Round - 2
  • HR Round - 1
  • HR Round - 2
  • HR Round - 3
View more
TCS System Engineer Salary
based on 1.1L salaries
₹1 L/yr - ₹9 L/yr
6% more than the average System Engineer Salary in India
View more details

TCS System Engineer Reviews and Ratings

based on 12.9k reviews

3.7/5

Rating in categories

3.4

Skill development

3.9

Work-life balance

2.6

Salary

4.6

Job security

3.6

Company culture

2.5

Promotions

3.3

Work satisfaction

Explore 12.9k Reviews and Ratings
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