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HomeCIE IGCSE Computer ScienceData transmission: types of transmission (serial, parallel, simplex, half-duplex, full-duplex)
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Data transmission: types of transmission (serial, parallel, simplex, half-duplex, full-duplex)
Practice Questions

20 CIE IGCSE Computer Science questions on Data transmission: types of transmission (serial, parallel, simplex, half-duplex, full-duplex), each with instant feedback and a full examiner-style mark scheme.

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Try 2 sample questions on Data transmission: types of transmission (serial, parallel, simplex, half-duplex, full-duplex)

Question 1 · 1 mark · Difficulty 1/3

In serial data transmission, how are the bits of each data unit sent?

  1. Bits are sent one after another along a single wire
  2. All bits are sent simultaneously on separate wires
  3. Bits are sent in pairs along two parallel wires
  4. Bits are grouped into bytes and sent together
Show answer & explanation
✓ Answer: ABits are sent one after another along a single wire
In serial transmission, bits are sent one at a time in sequence along a single communication channel. Option A describes parallel transmission. Option C is incorrect as serial uses one wire, not two. Option D describes a form of parallel grouping, not serial transmission.
Question 2 · 1 mark · Difficulty 1/3

Which mode of data transmission allows communication in both directions, but only one direction at a time?

  1. Simplex transmission
  2. Half-duplex transmission
  3. Serial transmission
  4. Full-duplex transmission
Show answer & explanation
✓ Answer: BHalf-duplex transmission
Half-duplex transmission allows data to flow in both directions, but only in one direction at any given moment — for example, a walkie-talkie. Simplex is one direction only. Full-duplex allows simultaneous two-way communication. Serial refers to how bits are sequenced, not the direction of flow.
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CIE IGCSE Computer Science: Data transmission: types of transmission (serial, parallel, simplex, half-duplex, full-duplex) FAQ

How many CIE IGCSE Computer Science questions on Data transmission: types of transmission (serial, parallel, simplex, half-duplex, full-duplex) are there on Kramizo?
Kramizo currently has 20 exam-board-aligned practice questions on Data transmission: types of transmission (serial, parallel, simplex, half-duplex, full-duplex) for CIE IGCSE Computer Science, with new questions added every week. Each question gives you instant feedback and a full examiner-style mark scheme that tells you exactly what would earn marks on a real CIE paper. The questions span the full difficulty range — from straightforward recall (level 1) right up to multi-step reasoning and evaluation (level 3) — so the bank works for first-pass revision and final exam-week stress testing alike.
Is Kramizo free for CIE IGCSE students preparing for Computer Science?
Yes — completely free. Every student gets 45 questions a day on the free plan, with no card required and no trial countdown. That free quota works across every subject and every topic in our bank, so you can mix Data transmission: types of transmission (serial, parallel, simplex, half-duplex, full-duplex) practice with other Computer Science topics or even switch to a totally different CIE subject without paying anything. Kramizo's optional Pro plan removes the daily cap and adds detailed progress analytics, but the free tier is the real product — used by thousands of GCSE, IGCSE and CSEC students.
Are the Data transmission: types of transmission (serial, parallel, simplex, half-duplex, full-duplex) questions aligned to the official CIE IGCSE Computer Science syllabus?
Every question is written against the published CIE IGCSE Computer Science specification, including the exact command words (state, describe, explain, calculate, evaluate, etc.), mark allocations, and difficulty tier you'd see on a real CIE paper. Explanations are written in the style of official examiner mark schemes — they tell you what is being awarded marks and why distractors are wrong, not just whether you got it right. The bank is continually refined to match the latest syllabus updates from CIE.
How is Data transmission: types of transmission (serial, parallel, simplex, half-duplex, full-duplex) typically tested on CIE IGCSE Computer Science papers?
Data transmission: types of transmission (serial, parallel, simplex, half-duplex, full-duplex) appears across multiple question types on real CIE IGCSE Computer Science papers — most commonly as multiple-choice questions in the objective section, structured short-answer questions in the main paper, and occasionally as part of an extended response. Kramizo's practice bank reflects that mix: 4-option MCQs, true/false statements, fill-in-the-blank key terms, multi-select questions, and ordering questions. Working through the bank gives you exposure to every question style examiners actually use.

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