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J277 1.3 Networks consolidation

Part 7 of 7 · J277 1.3 · Networks

The end-of-topic checkpoint for section 1.3, built around one school network scenario.

Students will:

  • select the right network idea for an unfamiliar scenario
  • apply hardware, topology and performance knowledge to a school network
  • explain DNS, standards, protocols and layers without word banks
  • evaluate cloud services for a stated organisation
  • write short explanations that apply computing ideas to the school

Inside: 5 text sections, 1 multiple-choice activity, 3 completion activities, 7 written answers. 25 marks. Suggested teaching time: 45–60 minutes.

Includes a teacher guide with suggested sections, timings and common misconceptions.

Series: J277 1.3 · Networks, part 7 of 7.

Shared by Coding PathwayVerified teacher

  • 16 cells
  • About 60 minutes
  • CC BY-SA 4.0
  • Shared 17 Aug 2026
  • Updated 27 Oct 2026

Preview

The whole resource, exactly as a class sees it. Answers and marking are held back.

Networks: consolidation

Use what you have learned to answer these questions independently. Where a question asks you to explain, link the network idea to its effect in the situation.

1. A school homework room

A school opens a homework room on one site. Its network has desktop computers, a shared printer and tablets. A server manages students' accounts. The school's technicians manage the local network equipment.

Fill in the blanks2 marks
Classify the homework-room network. (a) Geographical type: Answer 1 (b) Computer-role model: Answer 2
Fill in the blanks3 marks
Name the device for each job in the homework room. (a) Connect the wired devices and forward data to the intended local device: Answer 1 (b) Allow tablets to join the LAN wirelessly: Answer 2 (c) Connect this LAN to other networks: Answer 3
Written answer3 marks

A homework room has two desktop computers, a printer and two tablets. Describe a star layout using a switch and a wireless access point so that all five devices can use the LAN.

Students type their answer here.

2. A busy lesson

The homework room uses a shared internet connection. More students begin streaming video at the same time. The connection's bandwidth stays the same.

Written answer2 marks

More students stream video over the same shared connection, with no increase in bandwidth. Explain why a video may take longer to load.

Students type their answer here.

Multiple choice1 mark

Students carry tablets between desks while using the LAN. Which recommendation gives a suitable connection and reason?

  • AEthernet, because a trailing cable lets a tablet move freely around the room
  • BWi-Fi, because a tablet can remain connected while moving within coverage
  • CBluetooth, because it is always the fastest way to reach a distant web server
  • DWi-Fi, because it continues to provide internet access when the school's internet link fails

3. Remote services

Students use an online project service. The service stores their project files on remote servers. A student enters its domain name in a browser.

Written answer3 marks

A student enters an online project service's domain name. Its IP address is not already cached. Describe how DNS helps the browser find the service.

Students type their answer here.

Written answer2 marks

A student's project file is stored only in a cloud service, with no local copy. The school's internet connection fails. Explain one disadvantage for the student.

Students type their answer here.

Fill in the blanks3 marks
Name a suitable protocol for each task. (a) Transfer a web page using an encrypted connection: Answer 1 (b) Send an email to the mail server: Answer 2 (c) Access a received mailbox and keep changes synchronised across devices: Answer 3
Written answer2 marks

A project file is encrypted before being sent over a network. Explain how encryption protects the file if its data is intercepted.

Students type their answer here.

4. Compatible systems

The school buys network equipment from different manufacturers. A software developer later updates one part of the communication software.

Written answer2 marks

The school buys laptops and wireless access points from different manufacturers. Explain why following the same networking standard is useful.

Students type their answer here.

Written answer2 marks

Network communication software is organised into layers. Explain one benefit when a developer needs to update one part of the software.

Students type their answer here.

Review

Choose one answer to improve after feedback. Add the missing computing idea or explain its effect more clearly.