Computer Networks

21. The IF and base-band equipment consists of

  1. IF combiner/divider
  2. Modulator and demodulator
  3. Customer equipment interface
  4. Processing equipments
  5. All of these

Correct answer: (E)
All of these

22. The RF equipment consists of the following sub-systems are

  1. Antenna
  2. Low noise amplifier(LNA)
  3. Down converter, up converter
  4. High-power amplifier
  5. All of these

Correct answer: (E)
All of these

23. The term radio may be defined as consisting of ____________ of the signal

  1. Modulation
  2. Radiation
  3. Both a & b
  4. None of these

Correct answer: (C)
Both a & b

24. The thinner cable is less costly to acquire and deploy, although its performance is less in terms of transmission distance because of its cost it is sometimes called ____________

  1. Chaplet
  2. Cheapnet
  3. None of these
  4. All above

Correct answer: (B)
Cheapnet

25. Which is used to connect a cable and terminals or terminators

  1. BNC
  2. T-connector
  3. Both a & b
  4. None of these

Correct answer: (C)
Both a & b

26. Which uses thinner baseband coaxial cable in a bus topology so that multiple computers can be connected to a single transmission line

  1. 10Base2(Thick Net/Yellow Ethernet)
  2. 10Base5(Thick Net/Yellow Ethernet)
  3. 10Base2(Thin Net/Black Ethernet)
  4. 10Base5(Thin Net/Black Ethernet)

Correct answer: (C)
10Base2(Thin Net/Black Ethernet)

27. Wireless communication can be carried out

  1. Use of radio
  2. Without using radio
  3. Both a & b
  4. Without use of video

Correct answer: (C)
Both a & b

28. ____________ a multi-channel system in which a number of individuals channels are multiplexed for transmission

  1. System
  2. Carrier
  3. Carrier system
  4. None of these

Correct answer: (C)
Carrier system

29. ____________ are bounded media

  1. Twisted pair
  2. Coaxial cable
  3. Fibre optic cables
  4. All of these

Correct answer: (D)
All of these

30. ____________ are known as unbounded transmission

  1. microwave and satellite transmission
  2. both travel through the air
  3. which has no boundaries
  4. all of these

Correct answer: (D)
all of these

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