34. OCR GCSE (J277) 1.3 The concept of layers

Noah, Arthur, and Thomas are working on a networking project. They are trying to figure out which layer is responsible for adding the MAC address to the packet. Can you help them?

• Application layer

• Transport layer

• Link layer

• Network layer

Aarav, Ava, and Samuel are working on a project where they need to send data packets over the internet. Why would they number the packets at the transport layer?

• To add Aarav, Ava, and Samuel's IP addresses

• To establish an end-to-end connection between Aarav, Ava, and Samuel

• To reassemble the packets in the correct sequence when they reach Ava

• To identify the type of application Aarav, Ava, and Samuel are using

Oscar, Scarlett, and Aarav are studying for their computer science exam. They come across a question about the TCP-IP protocol. They want to know which layer uses the TCP part of the TCP-IP protocol?

• Link layer

• Network layer

• Transport layer

• Application layer

Harry, Daniel, and Grace are setting up a computer network for their school project. What is the main function of the network layer in their project?

• To establish an end-to-end connection between Harry's computer and the school's server

• To add source and destination IP addresses to the packets being sent from Daniel's computer

• To add the MAC address to the packet being sent from Grace's computer

• To reassemble the packets in the correct sequence when they reach the school's server

Arthur, Rohan, and Benjamin are working on a project to develop a new software application. Which layer would they need to use an appropriate protocol related to the application they are developing to transmit the data?

• Transport layer

• Link layer

• Application layer

• Network layer

Grace and Arjun are working on a networking project. They are discussing the purpose of the link layer in the TCP-IP stack. Elsie, their team leader, asks, 'What is the purpose of the link layer in the TCP-IP stack?'

• To add source and destination IP addresses

• To establish an end-to-end connection

• To add the MAC address to the packet

• To reassemble the packets in the correct sequence

Leo, George, and Max are working on a project where they need to transmit data using a specific application. What would be the main function of the application layer in this scenario?

• To use an appropriate protocol related to the application being used to transmit the data

• To add source and destination IP addresses

• To reassemble the packets in the correct sequence

• To establish an end-to-end connection

Matilda is sending a large file to Sophie over the internet. Which layer of the internet protocol is responsible for splitting Matilda's file into packets for transmission?

• Application layer

• Transport layer

• Network layer

• Link layer

Poppy is sending an email to Ella. What is the purpose of Ella's IP address in the network layer of this process?

• To reassemble the packets in the correct sequence

• To identify the type of application Poppy is using

• To establish an end-to-end connection between Poppy and Oscar

• To route the packet to Ella's computer

Arthur, Kiara, and Charlie are setting up a network for their school's computer lab. They are discussing about different layers involved in the process. Arthur asks, 'Which layer is sometimes referred to as the internet layer?'

• Link layer

• Application layer

• Transport layer

• Network layer