4.2.7 Check Your Understanding – Physical Layer Characteristics Answers

1. Which media uses patterns of microwaves to represent bits?

  • copper
  • wireless
  • fiber-optic

Explanation: In wireless networks data is represented by patterns of microwave transmissions.

2. Which media uses patterns of light to represent bits?

  • copper
  • wireless
  • fiber-optic

Explanation: Fiber-optic cables use patterns of light to represent bits.

3. Which media uses electrical pulses to represent bits?

  • copper
  • wireless
  • fiber-optic

Explanation: Electrical pulses are used to represent bits on networks using copper cable media.

4. Which of these is the name for the capacity of a medium to carry data?

  • bandwidth
  • throughput
  • goodput

Explanation: Bandwidth is the capacity of a network medium to carry data.

5. Which of these is a measure of the transfer of bits across the media?

  • bandwidth
  • throughput
  • goodput

Explanation: The transfer of bits across the network media over a period of time is known as throughput.


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