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Technology stack
Explain why protocols are used in network communications.
Hint

Think about how people from different countries use different languages to communicate with each other. Similarly, computers on a network may use different languages (protocols) to communicate. So, protocols are needed to make sure that they can "speak the same language" and understand each other properly.

Example
HTTP is a protocol used for web browsing. It defines how messages are formatted and transmitted, and what actions web servers and browsers should take in response to various commands.
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Explain why the speed of data transmission on the wireless network in the training room may vary.

Student response

Higher network traffic from multiple users accessing internet bandwidth can lead to speed fluctuations. Additionally, the distance from the wireless router, affected by user positioning in the room, can cause delays in transmission speeds.

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Question feedback

3/4

Strengths
  • You showed a good grasp of how various factors impact wireless data transmission speed, such as network traffic and distance from the router.
Weaknesses
  • You did not explicitly mention that passing through obstructions like solid walls can also slow down wireless transmissions.
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University of Oxford
University of Cambridge
Imperial College London
University College London
London School of Economics
Harvard
Stanford
Princeton
University of Chicago
MIT
Duke
University of Pennsylvania
Cornell
University of Oxford
University of Cambridge
Imperial College London
University College London
London School of Economics
Harvard
Stanford
Princeton
University of Chicago
MIT
Duke
University of Pennsylvania
Cornell

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