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OCR · GCSE · Computer Science

Network Security
Practice Questions

40 OCR GCSE Computer Science questions on Network Security, each with instant feedback and a full examiner-style mark scheme.

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✨ Revision guide includes key terms, worked examples and exam technique for Network Security.

Try 2 sample questions on Network Security

Question 1 · 1 mark · Difficulty 1/3

What is malware?

  1. Software designed to damage, disrupt or gain unauthorised access to a system
  2. Software designed to protect a system from being attacked by hackers
  3. Hardware that connects a computer to a wireless network
  4. A protocol used to send email messages between servers
Show answer & explanation
✓ Answer: A — Software designed to damage, disrupt or gain unauthorised access to a system
Award 1 mark. Malware includes viruses, worms, trojans, ransomware and spyware.
Question 2 · 1 mark · Difficulty 1/3

What is a denial of service (DoS) attack?

  1. Stealing data by watching network traffic in transit
  2. Persuading staff to reveal passwords by phone
  3. Installing software that records each key pressed
  4. Flooding a server with requests so legitimate users cannot access it
Show answer & explanation
✓ Answer: D — Flooding a server with requests so legitimate users cannot access it
Award 1 mark. A distributed DoS (DDoS) uses many compromised computers to send the traffic.
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20 questions · 25 min · free

OCR GCSE Computer Science: Network Security FAQ

Is Kramizo free for OCR GCSE 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 Network Security practice with other Computer Science topics or even switch to a totally different OCR 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 Network Security questions aligned to the official OCR GCSE Computer Science syllabus?
Every question is written against the published OCR GCSE 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 OCR 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 OCR.
How is Network Security typically tested on OCR GCSE Computer Science papers?
Network Security appears across multiple question types on real OCR GCSE 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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