WJEC ICT - Chapter 2 - The Internet: Packets & Routing

What is a packet in the context of internet data transmission?

• A large file

• A small chunk of data

• A type of virus

• A user profile

What is the primary function of routing in the internet?

• To store data

• To direct data packets to their destination

• To secure data

• To create websites

What ensures the reliability of data transmission over the internet?

• Data encryption

• Packet switching

• Centralized servers

• Wireless signals

How are data packets typically transmitted across the internet?

• In a straight line from sender to receiver

• Through a series of interconnected networks

• Via a single central hub

• Using only wireless signals

What happens if a data packet is lost during transmission?

• The entire message is lost

• The packet is retransmitted

• The message is corrupted

• The packet is ignored

What is the role of a router in a network?

• To create data packets

• To direct data packets to their destination

• To store data

• To encrypt data

What is a key challenge in ensuring reliable data transmission over the internet?

• Data encryption

• Network congestion

• Data storage

• Wireless interference

How does the internet handle data transmission errors?

• By ignoring the errors

• By retransmitting lost packets

• By storing data locally

• By using centralized servers