LAN Switching and Wireless

561. The constellation diagram of BASK has _________ dots.

  1. 2
  2. 1
  3. 0
  4. none of the above

Correct answer: (A)
2

562. The constellation diagram of BPSK has _________ dots.

  1. 2
  2. 1
  3. 0
  4. none of the above

Correct answer: (A)
2

563. The constellation diagram of QPSK has _________ dots.

  1. 2
  2. 1
  3. 4
  4. none of the above

Correct answer: (C)
4

564. The data rate is sometimes called the _________ rate.

  1. baud
  2. bit
  3. signal
  4. none of the above

Correct answer: (B)
bit

565. The divisor in a cyclic code is normally called the __________.

  1. degree
  2. generator
  3. redundancy
  4. none of the above

Correct answer: (B)
generator

566. The Federal Communications Commission (FCC) allows _________ kHz for each AM station.

  1. 5
  2. 10
  3. 20
  4. none of the above

Correct answer: (B)
10

567. The Federal Communications Commission (FCC) allows _________ kHz for each FM station.

  1. 20
  2. 100
  3. 200
  4. none of the above

Correct answer: (B)
100

568. The first address assigned to an organization in classless addressing _________.

  1. must be a power of 4
  2. must be evenly divisible by the number of addresses
  3. must belong to one of the A, B, or C classes
  4. none of the above

Correct answer: (B)
must be evenly divisible by the number of addresses

569. The first step in PCM is _________.

  1. quantization
  2. modulation
  3. sampling
  4. none of the above

Correct answer: (C)
sampling

570. The Hamming distance between 100 and 001 is __________.

  1. 2
  2. 0
  3. 1
  4. none of the above

Correct answer: (A)
2

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