Edexcel GCSE Computer Science (1CP2) Exam Questions

• B Internet (1)
• The only correct answer is B. The correct answer is Internet.
• A is not correct because the application layer creates data for applications such as web browsers and does not route packets
• C is not correct because the link layer sends data over physical hardware using MAC addresses and does not route packets
• D is not correct because the transport layer sets up the connection between two computers and reassembles the packets

• C WAN (1)
• The only correct answer is C. The correct answer is WAN, which connects networks over a large geographical area.
• A is not correct because a LAN covers a limited area such as one building or site
• B is not correct because a PAN connects devices around one person
• D is not correct because a WLAN is a LAN that uses wireless connections and is still local

Award up to two marks for a linked explanation such as:

• All the devices can share one internet connection (1) because the router forwards data packets between the home network and the internet (1)
• Data can reach the correct device on the home network (1) because the router uses the destination IP address to forward each packet to that device (1)
• Each device does not need its own separate connection to the internet (1) because the router forwards data packets for all the devices between the home network and the internet (1)

For both marks, the expansion must follow/associate with the statement.

Do not accept 'it provides Wi-Fi' because Wi-Fi is not why a router is needed to connect to the internet.

Do not accept 'it connects the home network/devices to the internet' or 'a router connects networks' without saying what the router does with the data, as this restates the question.

Do not accept 'it connects the cables' without saying what it does with the data.