Data Communication & Networking MCQs Set-16

This Portion of Data Communication and Networking contains more frequently asked MCQs (Multiple Choice Questions and Answers) / Objective Type Questions and Answers in the various Competitive Examinations.
 

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1
. The _______ houses the switches in token ring.
  • NIC
  • 9-pin connector
  • MAU
  • transceiver
2
. The 4 byte IP address consists of
  • network address
  • host address
  • both (a) and (b)
  • none of the above
3
. _____________ specifies a star topology featuring a central hub and unshielded twisted-pair wire as the medium.
  • 10 Base 2.
  • 10 Base 5
  • 10 Base T
  • 10 Base 8
4
. physical layer provides
  • mechanical specifications of electrical connectors and cables
  • electrical specification of transmission line signal level
  • specification for IR over optical fiber
  • all the above
5
. The most efficient medium for ATM is _____________
  • twisted pair
  • optical fiber
  • coaxial cable
  • the atmosphere
6
. Which of the following is a wrong example of network layer?
  • IP – ARPANET
  • X.25 PLP-ISO.
  • X.25 PLP-ISO.
  • X.25 level2 ISO
7
. When a light beam moves to a less dense medium, the angle of refraction is _______ the angle of incidence.
  • greater than
  • equal to
  • less than
  • less than equal to
8
. Which transmission media has the highest transmission speed in a network?
  • coaxial cable
  • twisted pair cable
  • optical fiber
  • electrical cable
9
. 10 Base 5 uses the _______ cable.
  • thick coaxial
  •  thin coaxial
  • twisted pair
  • fiber optic
10
. When talking about unguided media, usually it is referred to
  • metallic wires
  • metals
  • the atmosphere
  • nonmetallic wires

 
 
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