A LevelComputer ScienceCambridge (CIE)Exam Questions14. Communication & internet technologiesProtocols

Protocols (Cambridge (CIE) A Level Computer Science): Exam Questions

Exam code: 9618

30 mins6 questions
1
4 marks

The TCP/IP protocol may be viewed as a stack that contains four layers: Application, Transport, Internet, Link.

Describe how the layers of the TCP/IP protocol stack interact with each other.

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2a
4 marks

Name and describe two protocols used by the Application Layer of the TCP/IP protocol suite.

Protocol 1

Description

Protocol 2

Description

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2b
3 marks

Explain the purpose and function of the Application Layer in the TCP/IP protocol suite.

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3a
2 marks

The TCP/IP protocol suite has four layers:

Transport, Application, Link, Internet

Complete the diagram to show the correct order for these layers.

Four horizontal, equal-sized rectangular bands are stacked vertically, separated by thin black lines, on a plain white background.

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3b
2 marks

Describe the function of the Transport layer.

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3c
2 marks

Outline one protocol that is associated with the Application layer.

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4a
2 marks

Outline why protocols are essential for communication between computers.

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4b
2 marks

State the names of two different protocols associated with the sending and receiving of emails between computers

Sending.......................................................................

Receiving....................................................................

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5a
4 marks

Draw one line to connect each protocol to its most appropriate use.

Five network protocols listed in a table with mismatched uses. Protocols: HTTP, BitTorrent, SMTP, IMAP. Uses include peer-to-peer sharing and email functions.

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5b
2 marks

Outline the purpose of the Link layer in the TCP/IP protocol suite.

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6
3 marks

Complete the following paragraph about a protocol suite, using words from the given list.

Some words are not used.

BitTorrent circuit switching layered link list

peer‑to‑peer queue stack star TCP/IP

The protocols in a ............................................................................. determine

the interconnectivity rules for a .............................................................................

network model such as the .............................................................................

model.

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