Packet switching (Edexcel GCSE Computer Science): Quizzes
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12 questions from this quiz
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Practise the questions
12 questions from this quiz
What is packet switching?
What is packet switching?
Breaking data into small packets
How do packets from the same file travel across a network?
How do packets from the same file travel across a network?
Independently, possibly different routes
Why are packets numbered in sequence when data is broken down?
Why are packets numbered in sequence when data is broken down?
To reassemble them correctly later
What is the primary role of routers in packet switching?
What is the primary role of routers in packet switching?
Direct packets through network
What do routers consult to decide where to send packets?
What do routers consult to decide where to send packets?
Routing table
What are the three parts of a data packet?
What are the three parts of a data packet?
Header, payload, footer
What information does the packet header contain?
What information does the packet header contain?
Addressing and control information
What is the payload section of a packet?
What is the payload section of a packet?
The actual data being transmitted
What does the footer section of a packet contain?
What does the footer section of a packet contain?
End of packet flag
How does packet switching improve network efficiency?
How does packet switching improve network efficiency?
Packets take alternative paths
What is the purpose of the checksum in a packet header?
What is the purpose of the checksum in a packet header?
Detect transmission errors
How does the receiving computer reassemble packets correctly?
How does the receiving computer reassemble packets correctly?
Using sequence numbers