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Data representation: binary shifts (logical left and right shifts)
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20 CIE IGCSE Computer Science questions on Data representation: binary shifts (logical left and right shifts), each with instant feedback and a full examiner-style mark scheme.

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Question 1 · 1 mark · Difficulty 1/3

Which term correctly describes what happens to vacated bit positions during a logical right shift?

  1. They are filled with 0s
  2. They are filled with 1s
  3. They are filled with the sign bit
  4. They retain their previous values
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✓ Answer: A — They are filled with 0s
In a logical right shift, vacated positions at the most significant end are always filled with 0s. Filling with the sign bit is characteristic of an arithmetic shift, not a logical shift. Filling with 1s or retaining previous values are both incorrect and would produce meaningless results.
Question 2 · 1 mark · Difficulty 1/3

Which of the following best defines a logical binary shift?

  1. Moving all bits left or right while preserving the most significant bit unchanged
  2. Moving all bits a specified number of places left or right, with vacated positions filled with 0s
  3. Shifting bits and storing the overflow bit in a carry flag only
  4. Rotating bits so that bits shifted out re-enter the other end
Show answer & explanation
✓ Answer: B — Moving all bits a specified number of places left or right, with vacated positions filled with 0s
A logical binary shift moves all bits a set number of places in one direction; vacated positions are filled with 0s and bits shifted beyond the boundary are lost. Option A describes a circular/rotate shift. Option C describes an arithmetic shift where the sign bit is preserved. Option D describes a feature associated with processor carry flags, which is beyond IGCSE scope and not the definition of a logical shift.
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CIE IGCSE Computer Science: Data representation: binary shifts (logical left and right shifts) FAQ

How many CIE IGCSE Computer Science questions on Data representation: binary shifts (logical left and right shifts) are there on Kramizo?
Kramizo currently has 20 exam-board-aligned practice questions on Data representation: binary shifts (logical left and right shifts) 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.
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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 representation: binary shifts (logical left and right shifts) 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 representation: binary shifts (logical left and right shifts) 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 representation: binary shifts (logical left and right shifts) typically tested on CIE IGCSE Computer Science papers?
Data representation: binary shifts (logical left and right shifts) 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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