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100+ Free BCS Written ICT Practice Questions

Prepare for the BCS Written Post-Related Information and Communication Technology, Subject Code 281 exam with instant access — no signup required.

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Key Facts: BCS Written ICT Exam

281

BPSC subject code for post-related ICT

BPSC written syllabus

200 marks

Part I 100 + Part II 100

BPSC written syllabus

4 hours

Duration used for BPSC 200-mark written papers; confirm the routine

Longstanding BPSC sitting practice

50% aggregate

Written pass on the 900-mark stage

BPSC BCS examination page

Tk. 200 / Tk. 50

50th BCS general / reduced Teletalk fee; no separate written fee

50th BCS circular reporting citing PSC

Not CS 971

ICT 281 is a different post-related paper from Computer Science

BPSC written syllabus subject codes

BPSC ICT 281 is a 200-mark, 4-hour descriptive post-related written paper (Part I 100 + Part II 100). Written pass is 50% aggregate on 900 marks plus per-paper minima. Application fee is Tk. 200 general (Tk. 50 reduced categories) with no extra written fee. This page is a free English MCQ study adaptation, not an official-paper simulation.

Sample BCS Written ICT Practice Questions

Try these sample questions to test your BCS Written ICT exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1Coulomb's law states that the electrostatic force between two point charges is proportional to the product of the charges and inversely proportional to which quantity?
A.The separation distance
B.The square root of the separation distance
C.The square of the separation distance
D.The cube of the separation distance
Explanation: Coulomb's law is F = k q1 q2 / r^2, so the force falls as the square of the centre-to-centre separation. The constant k equals 1/(4π ε0) in SI units. Doubling r therefore quarters the force, all else equal.
2By Gauss's law, the net electric flux through any closed surface equals which quantity?
A.The enclosed charge divided by ε0
B.The enclosed charge multiplied by ε0
C.The electric potential on the surface
D.The magnetic flux through the surface
Explanation: Gauss's law is ∮ E · dA = Q_encl / ε0. Only charge inside the Gaussian surface contributes to the net flux. It is one of Maxwell's equations and is the integral form of ∇ · E = ρ/ε0.
3Faraday's law of electromagnetic induction states that the induced emf in a loop equals which expression?
A.The magnetic field B times the area
B.The negative rate of change of magnetic flux through the loop
C.The electric flux divided by ε0
D.The conduction current times μ0
Explanation: Faraday's law is ε = − dΦ_B / dt, where Φ_B = ∫ B · dA. The minus sign is Lenz's law: the induced current opposes the flux change. For N tightly wound turns the emf is −N dΦ_B / dt.
4In the photoelectric effect, increasing the intensity of light above the threshold frequency primarily increases which quantity?
A.The maximum kinetic energy of each photoelectron
B.The work function of the metal
C.The threshold frequency of the metal
D.The number of photoelectrons emitted per second
Explanation: Einstein's equation is K_max = hf − φ. Intensity (photon arrival rate) does not change hf or φ, so K_max is unchanged. More photons per second do increase the photoelectron emission rate, provided f exceeds the threshold.
5In Compton scattering, the wavelength shift of a photon scattered through 90° equals which value, where λ_C = h/(m_e c) is the Compton wavelength of the electron?
A.0
B.λ_C
C.2 λ_C
D.λ_C / 2
Explanation: The Compton formula is Δλ = λ_C (1 − cos θ). At θ = 90°, cos 90° = 0, so Δλ = λ_C. Numerically λ_C ≈ 2.43 × 10^{-12} m. Forward scatter (θ = 0) gives zero shift; backscatter (θ = 180°) gives 2 λ_C.
6The de Broglie wavelength of a particle with momentum p is given by which expression?
A.λ = h / p
B.λ = p / h
C.λ = h p
D.λ = h c / p
Explanation: de Broglie proposed λ = h/p for matter waves, with p = mv (non-relativistically). This wavelength enters the wave function and the Schrödinger wave equation. Electrons in crystals show diffraction consistent with this relation.
7In the classical stored-program (von Neumann) computer, instructions and data share which resource?
A.Separate read-only instruction tape and data tape only
B.The arithmetic logic unit as the only memory
C.A common main memory address space fetched over a shared bus
D.I/O devices that decode opcodes
Explanation: Von Neumann machines store both program and data in the same main memory. The processor fetches instructions and operands over a shared bus, which creates the von Neumann bottleneck. Harvard machines, by contrast, use separate instruction and data memories.
8What is the decimal value of the unsigned binary number 101101?
A.44
B.45
C.46
D.53
Explanation: 1011012 = 32 + 0 + 8 + 4 + 0 + 1 = 45. Place weights from the MSB are 32, 16, 8, 4, 2, and 1. Binary-to-decimal conversion is a core BCS ICT number-system skill.
9Convert hexadecimal 2F to decimal.
A.37
B.42
C.45
D.47
Explanation: Hexadecimal 2F16 = 2 × 16 + 15 = 32 + 15 = 47. Digit F is 15 in decimal. The same value is 0010 1111 in binary and 57 in octal.
10What is the sum of the unsigned binary numbers 1101 and 1011?
A.11000
B.10110
C.10000
D.11111
Explanation: 11012 is 13 and 10112 is 11, so the sum is 24, which is 110002. Adding in binary: 1+1 produces a carry, then 0+1+carry, then 1+0+carry, then 1+1+carry, leaving a leading 1. Always check by converting both addends to decimal.

About the BCS Written ICT Exam

BCS Written Post-Related Information and Communication Technology (Subject Code 281) is the 200-mark technical paper for ICT-related BCS cadres. Part I covers basic physics, computer systems, electrical circuits, digital logic, electronics, 8086 interfacing, computer architecture, communication theory, and networks/security. Part II covers structured and object-oriented programming, discrete mathematics and theory of computation, data structures and algorithms, database systems, software engineering, operating systems, and artificial intelligence. This is not the Computer Science paper (Subject Code 971). The official paper is descriptive. This free bank is an English-language MCQ study adaptation—not an official translation, format simulation, or substitute for writing practice.

Assessment

Official paper: 200 marks in two parts of 100 marks (Part I: physics, computer systems, circuits, digital logic, electronics, 8086, architecture, communication, networks/security; Part II: programming, discrete math/computation/graphs, DSA, DBMS, software engineering, OS, AI). Duration used for BPSC 200-mark written papers is 4 hours; confirm the routine. This bank is an English-language MCQ study adaptation, not a substitute for descriptive answers.

Time Limit

4 hours

Passing Score

50% aggregate on the 900-mark BCS written examination (BPSC page), with per-paper minima as set by BPSC; confirm the current circular.

Exam Fee

Tk. 200 general (50th BCS); Tk. 50 for ethnic-minority, persons-with-disabilities, and third-gender applicants; no separate written fee. Confirm the live circular. (Bangladesh Public Service Commission (BPSC))

BCS Written ICT Exam Content Outline

28% of this bank (subset of Part I, 100/200 marks)

Part I — Physics, systems, circuits and electronics

Coulomb/Gauss/Faraday/Maxwell, photoelectric and Compton effects, computer components and number systems, Ohm/KCL/KVL and network theorems, Boolean combinational/sequential logic, diodes, BJT, FET.

22% of this bank (subset of Part I, 100/200 marks)

Part I — 8086, architecture, communications and networks

8086 segmentation and 8255/8254/8259/8237 interfacing, datapaths and cache/virtual memory, Shannon/PCM/multiplexing, IPv4/IPv6, TCP/UDP, and cryptography.

24% of this bank (subset of Part II, 100/200 marks)

Part II — Programming, theory and algorithms

C and OOP, sets/graphs/automata/Turing machines, and core data structures, algorithm design methods, and NP-completeness.

26% of this bank (subset of Part II, 100/200 marks)

Part II — DBMS, software engineering, OS and AI

Relational design and transactions, UML/GRASP/testing, processes/memory/deadlock, and search, expert systems, and machine learning.

How to Pass the BCS Written ICT Exam

What You Need to Know

  • Passing score: 50% aggregate on the 900-mark BCS written examination (BPSC page), with per-paper minima as set by BPSC; confirm the current circular.
  • Assessment: Official paper: 200 marks in two parts of 100 marks (Part I: physics, computer systems, circuits, digital logic, electronics, 8086, architecture, communication, networks/security; Part II: programming, discrete math/computation/graphs, DSA, DBMS, software engineering, OS, AI). Duration used for BPSC 200-mark written papers is 4 hours; confirm the routine. This bank is an English-language MCQ study adaptation, not a substitute for descriptive answers.
  • Time limit: 4 hours
  • Exam fee: Tk. 200 general (50th BCS); Tk. 50 for ethnic-minority, persons-with-disabilities, and third-gender applicants; no separate written fee. Confirm the live circular.

Keys to Passing

  • Work through all 100 available questions
  • Review every answer and explanation
  • Track weak areas and revisit them
  • Use our AI tutor for tough concepts

BCS Written ICT Study Tips from Top Performers

1Treat Part I and Part II as equal 100-mark halves; do not skip physics, circuits, or 8086 because you prefer programming.
2Do not study from a Computer Science (971) outline as a substitute—ICT 281 explicitly lists Coulomb/Maxwell, RLC, diodes/BJT, and 8255/8259/8237.
3Practise numeric items: Coulomb force, voltage division, Thevenin/maximum power, CS:IP physical address, Shannon capacity, and recurrence complexity.
4For the real paper, sketch 8086 block diagrams, state machines, ER diagrams, and UML sequences; this MCQ bank only locks the facts.
5Confirm the sitting routine and circular on bpsc.gov.bd and bpsc.teletalk.com.bd; do not rely on unofficial item counts.

Frequently Asked Questions

Is BCS Written ICT the same as Computer Science (971)?

No. Information and Communication Technology is BPSC Subject Code 281. Computer Science is a different post-related paper (Subject Code 971). ICT 281 also examines basic physics, electrical circuits, electronics, and 8086 interfacing that are not a substitute for the CS paper.

Is the official ICT paper multiple choice?

No. The official BPSC post-related ICT paper is a 200-mark descriptive written examination (Part I 100 marks, Part II 100 marks). This bank is an English-language MCQ study adaptation, not an official translation, format simulation, or substitute for writing practice.

How many marks and how long is the ICT written paper?

The syllabus sets Total Marks 200 in two parts of 100. Four hours is the duration used for BPSC 200-mark written papers in longstanding sitting practice; confirm the current routine on bpsc.gov.bd.

What is the written pass mark?

The BPSC page requires 50% aggregate on the 900-mark written examination. Per-paper minima also apply as set by BPSC. Confirm the circular for the cycle you are sitting.

Who sits the post-related ICT paper?

Technical/professional cadre candidates sit Bangla 100, English 200, Bangladesh Affairs 200, International Affairs 100, Math+Mental 100, and this 200-mark post-related subject. Dual-cadre applicants sit the extra post-related paper. General cadre does not sit Subject Code 281.

What is the exam fee?

For the 50th BCS the Teletalk application fee is Tk. 200 general and Tk. 50 for ethnic-minority, persons-with-disabilities, and third-gender applicants. There is no separate written or viva fee. Confirm the live circular.

What does the viva carry?

The official BPSC page still lists viva voce as 200 marks with a 50% pass. News coverage from the 47th BCS onward has reported a 100-mark viva, and PSC has discussed reducing it further. Confirm the current circular rather than assuming either figure.

In what language is this practice bank?

This is an original English-language MCQ study adaptation of the official BPSC ICT syllabus. It is not an official BPSC paper, not an official translation, and not a substitute for practising descriptive answers in the language(s) used in the hall.