TCS NQT Technical Interview Questions 2022 | 200+ Most Asked Questions

If you are preparing for TCS NQT Technical Interview Questions so you are in the right place. After heavy research and after talking to 100s of candidates we have collected some of the most asked questions asked during the TCS NQT Interview, and we are damm sure if you will prepare these questions before your interview, you can crack any Technical Interview. So if you have an interview in a few days and don't have much time to prepare from basics, just prepare these questions.





What is TCS NQT 2022? 

TCS NQT is an assessment of various levels to test candidate on core cognitive process required sills for entry level job. It is organized by  TCS- Tata Consultancy Services

Key Points About TCS NQT :

  • Apply for an entry-level role in any corporate with the NQT Score
  • NQT (Cognitive Skills) is a prerequisite for all the tests
  • Two-year validity of NQT Score
  • Candidates with NQT Score will be eligible to apply on the TCS iON Job Listing Portal
  • Conducted online (at home) and physical In-Centre at TCS iON Authorised Exam Centres

Who can apply for TCS NQT 2022?

Candidates eligible to apply for the TCS National Qualifier Test should meet the below eligibility criteria:

  • UG, PG, and Diploma students who are in their pre-final, final year or have passed out
  • Students with any degree and specialization/ discipline
  • Freshers with less than 2 years of experience

So we have divided Interview Questions in 6 Different Parts:

  1. Basic Introduction and HR Questions.
  2. OOPs and Technical Questions.
  3. DBMS and SQL Questions.
  4. Data Structure.
  5. Programming Questions
  6. Domain Questions for NON-IT Students. 

1- Basic Introduction Questions of TCS NQT Interview.


1) Tell us something about yourself.
2) Do you wish to change your domain? If yes, why?
3) what do you know about TCS?
4) What are your expectations from the company?

5) Will you be comfortable relocating?
6) What is it like to live in Delhi (your state)?
7) Tell me something about the most memorable day of 
your life?
8) What are your strengths?
9) What are your weaknesses?

10) Why should we hire you?
11) Is there anything which makes you different from 
other candidates?
12) What are your views on demonetization?

13) Tell me about your daily routine?
14) Mention any five qualities that a person should have
for this profile?

15) Speak on any topic of your interest for at least 
5 minutes.
16) Describe the experience of visiting any place 
during your vacations.
17) Do you have any prior work experience? If so 
tell us about your last job and why you left it.
18) What are your hobbies?
19) What quality do you think a leader should have?
20) Have you applied anywhere before applying here
How many job offers have you received before this?

2- OOPS and Technical Questions of TCS NQT Interview.


1) What is the primary difference between C and Java?
2) Name four storage classes available in C
3) Memory Allocation in C/C++
4) Explain static variable.
5) How to print an address?
6) Explain function overloading concept.
7) Define the term's classes and objects.
8) Define macros.
9) Tell me different HeaderFiles and their use in c++
10) Differentiate structure and arrays.
11) List out some areas in which data structure is 
applied extensively.
12) How can you reuse code written in C++ 
programming language?
13) Name various deadlock prevention techniques.
14) Difference betweek \n and Endl
15) Significace of ";" ?
16) You are creating a function which can accept a 
variable number of arguments. Which header
file you will include?
17) What do you mean by data abstraction? Explain
three levels of data abstractions.
18) Explain what command-line argument in C is?
19) Explain the concept of cache memory.
20) Explain the difference between pass by reference 
and pass by value.
21) What is a pointer?
22) Differentiate between null and void pointer

23) What is operator overloading?
24) What are the different types of inheritance 
available in C++?
25) What is the difference and similarity between
C and C++?
26) What is the difference between a Clustered index
and non-clustered index?
27) Explain conditional statements.
28) Explain the difference between the foreign key and
the referenced key.
29) Explain the difference between C and C++?
30) What is an array?
31) Explain memory allocation in C.
32) What is a clustered index?
33) What do you mean by debugger?
34) What is the main difference between const char *p
and char const *p?
35) Explain Memory Alignment.
36) Explain conversion constructor.
37) Explain the concept of Tree.
38) What is data warehousing? Why should we use 
data warehousing?
39) How many types of recursions are there in C?
40) Explain compiler and interpreter.
41) Explain scope of a variable.
42) What is a user-defined exception in Java 
programming?
43) Explain garbage collector.
44) What is enumeration?
45) What do you mean by static identifier?
46) Explain encryption.
47) What is decryption?
48) What is a digital signature?
49) Name the basic principles of OOPS.
50) Define Polymorphism.
51) What is SDLC?

3-  DBMS and SQL Questions.

1) What are the differences between a DBMS and 
RDBMS?
2) Explain the terms database and DBMS. Also, 
mention the different types of DBMS.
4) What are the advantages of DBMS?
5) Mention the different languages present in DBMS
6) What do you understand by query optimization?
7) Do we consider NULL values the same as that of
blank space or zero?
8) What do you understand by aggregation and 
atomicity?
9) What is purpose of SQL
10) What is SQL
11) What is MySql
12) What are the different levels of abstraction in the 
DBMS?
13) What is an entity-relationship model?
14) What do you understand by the terms Entity, Entity
Type, and Entity Set in DBMS?
15) What is meant by normalization and 
denormalization?
16) What are ACID Propertiess
17) Write a Query to remove data of duplicate 
elements in a table.
18) Write a Query to Insert New Record in a Table
19) What is Truncate Command?
20) What is Drop and Delete Command?
21) What is DML, DDL, DQL ?
22) What does ODBC in a database stand for
23) What is main Difference between Union and ALL?
24) What is TCL in DBMS?
25) What does ODBC in a database stand for?

4- Data Structure Questions of TCS Technical Round.

1) What is a Data Structure ?
2) How many type of Data Structure are there?
3) What is an Array?
4) What is an Structure?
5) What is LinkedList?
6) What is Insertion and Deletion.
7) In what areas do data structures are applied?
8) What is LIFO?
9) What is FIFO?
10) What is Queue 
11) What is Binary Tree?
12) Which data structures are applied when dealing 
with a recursive function?
13) What is Stack
14) What is Merge Sort?
15) What is Quick Sort?
16) What is Circular Linkedlist
17) Differenciate NULL &. VOID?
18) What is PUSH and POP Operation? 
19) How do you insert a new item in a binary search 
tree?
20) What is Multi Dimensional Array?
21) What is Linear and Non Linear Data Structure?
22) How does variable declaration affect memory 
allocation?

5- Programming and Coding Question.

1) Write a Program to Print Number Entered by User
2) Write a Program to Add Two Numbers
3) Write a Program to Find Quotient and Remainder
4) Write a Program to Find Size of int, float, double and 
char in Your System
5) Write a Program to Swap Two Numbers
6) Write a Program to Check Whether Number is Even
or Odd
7) Write a Program to Check Whether a character is 
Vowel or Consonant.
8) Write a Program to Find Largest Number Among 
Three Numbers
9) Write a Program to Find All Roots of a Quadratic 
Equation
10) Write a Program to Calculate Sum of Natural 
Numbers
11) Write a Program to Check Leap Year
12) Write a Program to Find Factorial
13) Write a Program to Generate Multiplication Table
14) Write a Program to Display Fibonacci Series
15) Write a Program to Find GCD
16) Write a Program to Find LCM
17) Write a Program to Reverse a Number
18) Write a Program to Calculate Power of a Number
19) Increment ++ and Decrement -- Operator 
Overloading in Write a Programming
20) Write a Program to Subtract Complex Number 
Using Operator Overloading
21) Write a Program to Find ASCII Value of a Character
22) Write a Program to Multiply two Numbers
23) Write a Program to Check Whether a Number is 
Palindrome or Not
24) Write a Program to Check Whether a Number is 
Prime or Not
25) Write a Program to Display Prime Numbers 
Between Two Intervals
26) Write a Program to Check Armstrong Number
27) Write a Program to Display Armstrong Number 
Between Two Intervals
28) Write a Program to Display Factors of a Number
29) Write a Programs To Create Pyramid and Pattern
30) Write a Program to Find G.C.D Using Recursion
31) Write a Program to Convert Binary Number to 
Decimal and vice-versa
32) Write a Program to Convert Octal Number to 
Decimal and vice-versa
33) Write a Program to Convert Binary Number to 
Octal and vice-versa
34) Write a program to Reverse a Sentence Using 
Recursion
35) Write a Program to Calculate Power Using 
Recursion
36) Write a Program to Calculate Average of Numbers
Using Arrays
37) Write a Program to Find Largest Element of an Array
38) Write a Program to Calculate Standard Deviation
39) Write a Program to Add Two Matrix Using 
Multi-dimensional Arrays
40) Write a Program to Multiply Two Matrix Using 
Multi-dimensional Arrays
41) Program to Access Elements of an Array 
Using Pointer
42) Write a Program to Swap Numbers in Cyclic 
Order Using Call by Reference
43) Write a Program to Find the Frequency of 
Characters in a String
44) Write a Program to Find the Number of Vowels, 
Consonants, Digits and White Spaces in a String
45) Write a Program to Remove all Characters in a 
String Except Alphabets.
46) Write a Program to Find the Length of a String
47) Write a Program to Concatenate Two Strings
48) Write a Program to Copy Strings
49) Write a Program to Sort Elements in
Lexicographical Order (Dictionary Order)
50) Write a Program for Binary Search

6- Domain Questions for NON-IT Students.

Mechanical
What is the difference between petrol engine and 
diesel engine?
How will you define the calorific value of a fuel?
What is the meaning of auto-ignition temperature?
What is cavitation in pumps?
How will you define the Coefficient of Performance?
How are pipe diameters and pressure drop related?
What are orthotropic materials?
Define buckling factor?
Could you enlist at least one utility of a spark plug, of 
course, other than its use in petrol engines?
What is pitting? How it is caused.
What is Principle of Mecahnical Refregration

ECE
What is Electronics?
What is communication?
What is the difference between Electronics and 
Electrical?
What is latch
What is diode?
What is transistor?
What is sampling?
What is the principle of microwave?
What is rheostat.
What is modulation? And where it is utilized?
flip- flops
Logic Gates


EEE
What is the difference between Electronics 
and Electrical?
What happens when two positively charged material 
is placed together?
Mention what are the different kind of cables used
for transmissions?
Mention what is the difference between generator 
and alternator?
Mention what are the different colors on wires 
indicates?
Mention what are the types of semi-conductors?
Explain what rectifiers is and what are the types 
of rectifiers?

So These are all the questions, that we have collected, if you want to share your experience so you can mail us your ideas in the contact form here. 

For any Doubt you can comment. Share this TCS NQT technical Question Cheat sheet with your friends. 

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