Computer Science GK


Page-6

Computer Sc

76)One prominent disadvantage of Star topology is
Difficult to find fault Long cable length
Complicated structure Depends on central node
Answer :

77)Bluetooth is a
LAN PAN
WAN MAN
Answer :

78)Internet is an example of
WAN MAN
PAN LAN
Answer :

79)Which network is fastest?
WAN LAN
MAN None of these
Answer :

80)Which one has highest error rate?
WAN LAN
MAN Equal error rate
Answer :

81)Which of the following is the fastest transmission medium?
Twisted pair Co-exial cable
Fibre optics Infrared
Answer :

82)PAN stands for
Permanent Arial Network Personal Area Network
Prominent Atomic Network Pointed Area Network
Answer :


83)Which of the following device is required to access Internet via telephone line?
Hub Switch
Router Modem
Answer :

84)Device used to connect two dis-similar network
Gateway Bridge
Repeater hub
Answer :

85)Device that is used to segment a big network
Hub Switch
Bridge Gateway
Answer :

86)Repeater is used to
Connect to segments of a network Amplify signal
Block signal Segment a big network
Answer :

86)To connect two networks using similar protocol we use
Router Gateway
Bridge Switch
Answer :

88)Router is used to connect two networks using
Any protocol Similar protocol
Dis-similar protocol None of them
Answer :

89)Number of layers in OSI network model is
5 4
3 7
Answer :

90)In OSI network model billing is taken care of in
Datalink layer Network layer
Presentation Layer Session layer
Answer :

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