Computer Networks

861. The outdoor unit is generally installed in the

  1. Ground
  2. Indoor unit
  3. Both a & b
  4. None of these

Correct answer: (C)
Both a & b

862. The output of a Ethernet card is connected to the data encoder/decoder, which in turn is connected to the transmission cable through a

  1. Repeater
  2. Transceiver
  3. Segments
  4. Groups

Correct answer: (B)
Transceiver

863. The Packet format and protocol at internet layer is called

  1. Network protocol
  2. Internet protocol
  3. OSI protocol
  4. None of these

Correct answer: (B)
Internet protocol

864. The part that corresponds to second layer, that is, data link layer is referred to as

  1. DLC layer
  2. ATM layer
  3. STM layer
  4. Protocol layer

Correct answer: (B)
ATM layer

865. The path of channel may be

  1. Physical
  2. Logical
  3. Both a & b
  4. None of these

Correct answer: (C)
Both a & b

866. The pattern of switching from one channel to another channel is known as

  1. Hipping
  2. Hyping
  3. Harping
  4. Hopping

Correct answer: (D)
Hopping

867. The PCM is a coding scheme used in ____________ communication because of less sensitive to noise

  1. Analog
  2. Digital
  3. Both a & b
  4. None of these

Correct answer: (B)
Digital

868. The phase modulation is similar to the

  1. Amplitude Modulation
  2. Frequency Modulation
  3. Angle Modulation
  4. Pulse Code Modulation

Correct answer: (B)
Frequency Modulation

869. The PHY are

  1. Data link layer protocol
  2. Physical layer protocol
  3. Network protocol
  4. None of these

Correct answer: (B)
Physical layer protocol

870. The physical layer specifies the representation of each bit as a

  1. Voltage
  2. Current
  3. Phase or frequency
  4. All of these

Correct answer: (D)
All of these

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