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Computer Science

Computer science quizzes on programming languages, web development, data structures, databases, networking, and software fundamentals.

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Computer Science

Topics in Computer Science

AJAX
AJAX

00 Quizzes

Angular JS
Angular JS

00 Quizzes

ASP .NET
ASP .NET

00 Quizzes

Bootstrap
Bootstrap

00 Quizzes

C
C

00 Quizzes

C#
C#

00 Quizzes

C++
C++

00 Quizzes

CodeIgniter
CodeIgniter

00 Quizzes

Computer Networks
Computer Networks

01 Quizzes

CSS
CSS

01 Quizzes

Data Structures & Algorithms
Data Structures & Algorithms

02 Quizzes

Databases
Databases

01 Quizzes

Go Lang
Go Lang

00 Quizzes

HTML
HTML

01 Quizzes

Java
Java

00 Quizzes

JavaScript
JavaScript

01 Quizzes

JQuery
JQuery

00 Quizzes

Laravel
Laravel

00 Quizzes

Node JS
Node JS

00 Quizzes

Operating Systems
Operating Systems

01 Quizzes

PHP
PHP

00 Quizzes

Python
Python

01 Quizzes

React JS
React JS

00 Quizzes

React Native
React Native

00 Quizzes

Ruby on Rails
Ruby on Rails

00 Quizzes

Software Engineering
Software Engineering

01 Quizzes

Tailwind CSS
Tailwind CSS

00 Quizzes

Vue JS
Vue JS

00 Quizzes

Computer Science
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QUESTION NO 01
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Thrashing in OS terms means?

Answer: Excessive paging with little useful work
Thrashing occurs when the system spends most time swapping pages, not executing.
Shahzad Mahota
Shahzad Mahota @shahzad-mahota
302 Quizzes
2930 Questions
00 Likes
QUESTION NO 02
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Which attribute provides alternate text for images?

Answer: alt
alt describes the image for accessibility and when the image fails to load.
Shahzad Mahota
Shahzad Mahota @shahzad-mahota
302 Quizzes
2930 Questions
00 Likes
QUESTION NO 03
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Dijkstra's algorithm finds?

Answer: Shortest paths from a source in a weighted graph
Dijkstra computes shortest paths from one source (non-negative weights).
Shahzad Mahota
Shahzad Mahota @shahzad-mahota
302 Quizzes
2930 Questions
00 Likes
QUESTION NO 04
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UDP is preferred when?

Answer: Low latency matters more than reliability
UDP is lightweight; apps handle reliability if needed (e.g., streaming, DNS).
Shahzad Mahota
Shahzad Mahota @shahzad-mahota
302 Quizzes
2930 Questions
00 Likes
QUESTION NO 05
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=== compares?

Answer: Value and type
Strict equality checks type and value without coercion.
Shahzad Mahota
Shahzad Mahota @shahzad-mahota
302 Quizzes
2930 Questions
00 Likes
QUESTION NO 06
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Which traversal visits left subtree, root, then right subtree?

Answer: Inorder
Inorder is left → root → right.
Shahzad Mahota
Shahzad Mahota @shahzad-mahota
302 Quizzes
2930 Questions
00 Likes
QUESTION NO 07
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Space complexity of an in-place algorithm is typically?

Answer: O(1) extra space
In-place algorithms use constant (or very small) extra memory beyond the input.
Shahzad Mahota
Shahzad Mahota @shahzad-mahota
302 Quizzes
2930 Questions
00 Likes
QUESTION NO 08
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A semaphore is used for?

Answer: Process synchronization
Semaphores coordinate access to shared resources and signaling between processes.
Shahzad Mahota
Shahzad Mahota @shahzad-mahota
302 Quizzes
2930 Questions
00 Likes
QUESTION NO 09
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Unit testing tests?

Answer: Individual components/functions
Unit tests verify the smallest testable pieces of code in isolation.
Shahzad Mahota
Shahzad Mahota @shahzad-mahota
302 Quizzes
2930 Questions
00 Likes
QUESTION NO 10
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DNS translates?

Answer: Domain names to IP addresses
DNS resolves human-readable names to IP addresses.
Shahzad Mahota
Shahzad Mahota @shahzad-mahota
302 Quizzes
2930 Questions
00 Likes

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