CSS Computer Science MCQs 2025 Paper-I

Report a question

Computer Science Past Paper MCQs

Computer Science-I 2025 MCQs

1 / 20

Which type of software testing is used to confirm whether the software is according to customer’s requirements?

a) Performance testing

b) Acceptance testing

c) Regression testing

d) None of these

2 / 20

What is the degree of leaf node in a tree?

a) 0

b) 1

c) 2

d) None of these

3 / 20

Which optimization method involves minimizing the memory access count in a program?

a) Constant folding

b) Register allocation

c) Instruction scheduling

d) None of these

4 / 20

How is the head node deleted in a doubly circular linked list?

a) By adjusting the prev pointer of the new head node to null.

b) By setting the next pointer of prev node to point to new head.

c) By pointing the next pointer of last node to null.

d) None of these

5 / 20

Which of the following is commonly used for measuring the performance of supercomputers?

a) Gigahertz (GHz)

b) Teraflops (Tflops)

c) Petabyte (PB)

d) None of these

6 / 20

What is the output of the following code?

int main() {

int a = 40;

int* ptr = &a;

int& ref = *ptr;

ref = 60; cout << a;}

a) 40

b) 60

c) Error

d) None of these

7 / 20

What is meant by refactoring code in SDLC?

a) To modify the functionality of software

b) To improve the code quality

c) To find out bugs in a software

d) None of these

8 / 20

Which programming language uses the concept of ‘def’ function?

a) Python

b) Java

c) C#

d) None of these

9 / 20

What is the main purpose of using a virus?

a) To get passwords

b) To delete data

c) To corrupt files

d) None of these

10 / 20

Which technique works by selecting the local optimal choice at each step?

a) Dynamic Programming

b) Divide and Conquer

c) Greedy Algorithm

d) None of these

11 / 20

What is the correct data structure for implementing Huffman algorithm?

a) Priority queue

b) Linked list

c) Binary Tree

d) None of these

12 / 20

Which software development model uses iterative cycles and continuous development?

a) Agile model

b) Spiral model

c) V - model

d) None of these

13 / 20

Which phase of compiler is responsible for abstract syntax tree (AST) generation?

a) Syntax analysis

b) Semantic analysis

c) Lexical analysis

d) None of these

14 / 20

Which asymptotic notation gives the strict upper bound for a function?

a) Omega notation

b) Big O notation

c) Theta notation

d) None of these

15 / 20

What is the main goal of Capability Maturity Model Integration (CMMI)?

a) To enhance maturity of software process

b) To increase the quality of software

c) To provide user friendly experience

d) None of these

16 / 20

The process of deleting an element from an empty stack is called:

a) Overflow

b) Deletion

c) Underflow

d) None of these

17 / 20

What is the role of parser?

a) To check logical errors

b) To find syntax errors

c) To identify run - time errors

d) None of these

18 / 20

Which of the following is the false statement in C language?

a) static a = 10;

b) static int func (int);

c) static static int a;

d) None of these

19 / 20

Which one of the following is the fastest way of searching for a given key?

a) Sorted array

b) Linked list

c) Binary search tree

d) None of these

20 / 20

What is the time complexity of searching for an element in a hash table?

a) O(1)

b) O(n)

c) O(nlogn)

d) None of these

Your score is

The average score is 50%

Exit

How was the test? Please submit your Rating and give feedback!

CSS Computer Science-I MCQs - 2025

Leave a Reply Cancel reply