3.5 Fundamentals of Computer NetworksComparison

Circuit Switching vs Packet Switching

Part of Packet Switching · GCSE GCSE Computer Science revision

This comparison covers Circuit Switching vs Packet Switching within Packet Switching for GCSE Computer Science. Revise Packet Switching in 3.5 Fundamentals of Computer Networks for GCSE Computer Science with 15 exam-style questions and 18 flashcards. This topic appears regularly enough that it should still be part of a steady revision cycle. It is section 8 of 12 in this topic. Use this comparison to connect the idea to the wider topic before moving on to questions and flashcards.

Topic position

Section 8 of 12

Practice

15 questions

Recall

18 flashcards

Circuit Switching vs Packet Switching

Aspect	Circuit Switching	Packet Switching
Connection	Dedicated path established for entire communication	No dedicated path - packets use any available route
Route	Same route for entire duration	Each packet can take different route
Resource Usage	Inefficient - line reserved even when idle	Efficient - multiple transmissions share links
Setup	Connection setup needed before transmission	No setup - send packets immediately
Reliability	If connection fails, everything stops	Resilient - packets reroute around failures
Order	Data arrives in order	Packets may arrive out of order (need reassembly)
Latency	Consistent (predictable delay)	Variable (different routes = different delays)
Use Case	Traditional telephone calls	Internet, email, web browsing
Example	Landline phone call	Internet data transmission

Keep building this topic

Read this section alongside the surrounding pages in Packet Switching. That gives you the full topic sequence instead of a single isolated revision point.

Disadvantages of Packet Switching Real-World Example: Sending an Email Breaking Data Into Pieces Packet Switching

Practice Questions for Packet Switching

Which of the following best describes packet switching?

A. Data is sent as a single continuous stream along one fixed path
B. Data is split into smaller packets that may travel by different routes to the destination
C. Data is encrypted before being sent along a dedicated circuit
D. Data is compressed and stored before being forwarded to the destination

1 markfoundation

Explain why packets from the same file can travel by different routes through a network. [2 marks]

2 marksstandard

Quick Recall Flashcards

15 questions on Packet Switching — practise free

Instant marking, adaptive difficulty, and 18 spaced repetition flashcards. Free until your GCSEs.

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Disadvantages of Packet Switching

Real-World Example: Sending an Email