PracticeVideosBlogFlashcardsEspañol
All Practice Exams

90+ Free WBCHSE HS Computer Science Practice Questions

Prepare for the West Bengal Council of Higher Secondary Education Class 12 Computer Science exam with instant access — no signup required.

✓ No registration✓ No credit card✓ No hidden fees✓ Start practicing immediately
90+ Questions
100% Free

Loading practice questions...

Same family resources

Explore More West Bengal Higher Secondary (WBCHSE)

Continue into nearby exams from the same family. Each card keeps practice questions, study guides, flashcards, videos, and articles in one place.

West Bengal HS Political Science

Practice Questions

West Bengal HS Accountancy

Practice Questions

West Bengal HS Agriculture — Vocational

Practice Questions

West Bengal HS Alternative English — Second Language

Practice Questions

West Bengal HS Anthropology

Practice Questions

West Bengal HS Apparel — Vocational

Practice Questions
2026 Statistics

Key Facts: WBCHSE HS Computer Science Exam

COMS

Official WBCHSE subject code

https://wbchse.wb.gov.in/subjects/

30%

Minimum pass in theory and practical/project independently

https://wbchse.wb.gov.in/frequently-asked-questions-examination

INR 215

Class XII semester enrolment total (INR 190 to Council)

WBCHSE Memo L/PR/305/2025

bn+en

Non-language elective paper media (Bengali and English)

WBCHSE examination regulations

Sem I–IV

Higher Secondary semester system across Classes XI–XII

https://wbchse.wb.gov.in/annual-working-plan

A comprehensive examination covering fundamental computing concepts, programming, data structures, and database management for high school students in West Bengal. English-language MCQ study adaptation for WBCHSE HS—not an official board paper.

Sample WBCHSE HS Computer Science Practice Questions

Try these sample questions to test your WBCHSE HS Computer Science exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 90+ question experience with AI tutoring.

1Which logic gate produces a HIGH output only when all its inputs are HIGH?
A.AND Gate
B.OR Gate
C.NOT Gate
D.XOR Gate
Explanation: The AND gate outputs true only if all inputs are true.
2What is the simplified form of the Boolean expression A + A'B?
A.A + B
B.A · B
C.A' + B
D.1
Explanation: By the distributive law and simplification, A + A'B = (A + A')(A + B) = 1 * (A + B) = A + B.
3In a 3-variable Karnaugh Map, how many cells correspond to a grouping of 4 1s?
A.1
B.2
C.4
D.8
Explanation: A grouping of 4 1s in a K-Map covers 4 cells, simplifying to a single variable.
4Which topology uses a central hub or switch to connect all devices?
A.Bus Topology
B.Ring Topology
C.Star Topology
D.Mesh Topology
Explanation: In a star topology, all nodes are connected to a central networking device like a hub or switch.
5Which layer of the OSI model is responsible for routing packets across networks?
A.Data Link Layer
B.Network Layer
C.Transport Layer
D.Session Layer
Explanation: The Network Layer (Layer 3) handles routing and logical addressing (IP addresses).
6Which IPv4 address class allows a maximum of 254 hosts per network?
A.Class A
B.Class B
C.Class C
D.Class D
Explanation: Class C networks have 24 bits for the network and 8 bits for hosts, giving (2^8 - 2) = 254 hosts.
7Which SQL command is used to retrieve data from a database?
A.INSERT
B.SELECT
C.UPDATE
D.DELETE
Explanation: The SELECT command is used to query and retrieve data from database tables.
8Which normal form addresses the issue of partial dependency?
A.First Normal Form (1NF)
B.Second Normal Form (2NF)
C.Third Normal Form (3NF)
D.Boyce-Codd Normal Form (BCNF)
Explanation: 2NF ensures that no non-prime attribute is partially dependent on any candidate key.
9In a relational database, what does ACID stand for?
A.Atomicity, Consistency, Isolation, Durability
B.Accuracy, Consistency, Isolation, Dependability
C.Atomicity, Concurrency, Integrity, Durability
D.Availability, Consistency, Interoperability, Durability
Explanation: ACID properties guarantee reliable processing of database transactions.
10Which data structure operates on a Last In First Out (LIFO) principle?
A.Queue
B.Stack
C.Linked List
D.Array
Explanation: A stack follows LIFO, meaning the last element added is the first one removed.

About the WBCHSE HS Computer Science Exam

The WBCHSE HS Computer Science examination evaluates students on a comprehensive syllabus encompassing Boolean Algebra, Networking, Database Management Systems, Data Structures, and Programming fundamentals. This rigorous assessment ensures students are well-prepared for higher education in computing disciplines. This OpenExamPrep bank is an English-language four-option MCQ study aid for WBCHSE Higher Secondary; it does not replace official Bengali/English board papers, descriptive answers, or required practical/project/performance evidence.

Assessment

WBCHSE Higher Secondary subject COMS: Semesters I–IV across Classes XI–XII; theory examinations plus practical/project/performance where the syllabus requires them.

Time Limit

As per semester notification (typically 2–3 hours for theory sittings)

Passing Score

30% minimum in theory and in practical/project independently (WBCHSE examination FAQ)

Exam Fee

Semester enrolment fee structure (Council): Sem III/IV student total INR 215 (155 enrolment + 30 processing + 30 convenience), with INR 190 to Council and INR 25 centre grant; supplementary often INR 50/paper. Separately, the public Fees page lists Class XII examination fees (within schedule) about INR 205 lab / INR 195 non-lab / INR 135 special. Confirm the applicable circular for the sitting. (West Bengal Council of Higher Secondary Education (WBCHSE))

WBCHSE HS Computer Science Exam Content Outline

core

Section 1: Core Concepts

Detailed review and practice questions covering essential topics for in-wbchse-hs-computer-science.

core

Section 2: Core Concepts

Detailed review and practice questions covering essential topics for in-wbchse-hs-computer-science.

core

Section 3: Core Concepts

Detailed review and practice questions covering essential topics for in-wbchse-hs-computer-science.

core

Section 4: Core Concepts

Detailed review and practice questions covering essential topics for in-wbchse-hs-computer-science.

core

Section 5: Core Concepts

Detailed review and practice questions covering essential topics for in-wbchse-hs-computer-science.

How to Pass the WBCHSE HS Computer Science Exam

What You Need to Know

  • Passing score: 30% minimum in theory and in practical/project independently (WBCHSE examination FAQ)
  • Assessment: WBCHSE Higher Secondary subject COMS: Semesters I–IV across Classes XI–XII; theory examinations plus practical/project/performance where the syllabus requires them.
  • Time limit: As per semester notification (typically 2–3 hours for theory sittings)
  • Exam fee: Semester enrolment fee structure (Council): Sem III/IV student total INR 215 (155 enrolment + 30 processing + 30 convenience), with INR 190 to Council and INR 25 centre grant; supplementary often INR 50/paper. Separately, the public Fees page lists Class XII examination fees (within schedule) about INR 205 lab / INR 195 non-lab / INR 135 special. Confirm the applicable circular for the sitting.

Keys to Passing

  • Complete 500+ practice questions
  • Score 80%+ consistently before scheduling
  • Focus on highest-weighted sections
  • Use our AI tutor for tough concepts

WBCHSE HS Computer Science Study Tips from Top Performers

1Practice simplification of Boolean expressions and drawing logic circuits.
2Write and trace SQL queries to understand relational databases thoroughly.
3Implement basic data structures in C++ or Python to grasp their logic.
4Understand the OSI model and different networking topologies clearly.
5Solve previous years' question papers to get accustomed to the exam pattern.

Frequently Asked Questions

What is the passing marks for WBCHSE HS Computer Science?

Students must secure at least 30% in theory and in practical/project independently for the mandatory best-of-five subjects (two languages and three electives), per the Council examination FAQ.

Is C++ or Python included in the syllabus?

The syllabus typically covers fundamental programming concepts which can be implemented in C++ or Python.

How important are Data Structures in this exam?

Data Structures carry significant weightage. Students must understand operations on arrays, stacks, queues, and linked lists.

Are Karnaugh Maps (K-Maps) part of the syllabus?

Yes, simplifying Boolean expressions using K-Maps is an essential part of the syllabus.

What topics are covered under DBMS?

DBMS topics include relational models, primary and foreign keys, basic SQL queries, and normalization up to 3NF.

Can I use a calculator during the exam?

Typically, the use of electronic calculators is governed by WBCHSE rules; check the official admit card instructions.

Are these MCQs identical to the official WBCHSE COMS question paper?

No. Official non-language elective papers are set in Bengali and English under the semester system and may include descriptive and practical/project components. These items are an English MCQ study adaptation only.