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Data communication systems (A-level only)

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Question 14

A remote high-security scientific research facility situated in an active volcanic region is to be connected to a mainland data hub via a new long-distance, land-based communication link. The link must support real-time high-speed data transmission from volcanic monitoring sensors, multiple simultaneous high-definition video feeds, and highly confidential research data.

The engineering team is deciding between installing an optical fiber system or a copper-wire cable network.

Compare the advantages and disadvantages of these two options for use in this communication link and state which option you would recommend.

For both types of cabling, refer to:

  • physical and environmental durability properties
  • security and resistance to external interference
  • signal-carrying and transmission properties.
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Markscheme

Data communication systems (A-level only) Questions

  1. A Level
  2. /Physics
  3. /Data communication systems (A-level only)

22 exam-style questions on AQA A Level Physics Data communication systems (A-level only), covering Principles of communication systems (A-level only), Transmission media (A-level only), Time-division multiplexing (A-level only), and Amplitude (AM) and frequency modulation (FM) techniques (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.

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