MCQ of Computer Networks.....

MCQ of Computer Networks.....

1)In the Ethernet network, What method is used to access the media?
a)Demand priority
b)CSMA/CD
c)Polling
d)CSMA/CA
e)None of these


2)Which of the following Ethernet components is unique for each card created?
a)Frame Type
b)CRC Address
c)IRQ
d)MAC Address
e)None of these

3)ALOHA
a)is used for channel allocation problem
b)is use of data transfer
c)is buffering
d)all of the above
e)None of these

4)Which project 802 standard provides for a collision free protocol?
a)802.2
b)802.3
c)802.5
d)802.4
e)None of these

5)Unnumbering frame in HDLC are used for
a)Unnumbering a frame
b)Deleting a frame
c)System Management
dAdding frame 
e)None of these

6)The store and forward mechanism is used in..................
a)Packet switching
b)Message switching
c)Circuit switching
d)Datagram switching
e)None of these

7)Which one is the least expensive that can support 100Mbps?
a)Coaxial
b)UTP
c)Fibre-optic
d)STP
e)None of these

8)Broadband uses
a)Manchester encoding
b)FSK encoding
c)ASK encoding
d)PSK encoding
e)None of these

9)In CRC Checking, the divisor is ..............the CRC
a)One bit less than
b)One bit more than
c)The same size as
d)These bits more than
e)None of these

10)In the 1-persistent approach when a station finds an idle line, it...............
a)Waits 1s before sending
b)It waits for a random amount of time
c)Its sends immediately
d)Its sends 0.1 sec before sending
e)None of these



Answers:
1)b
2)d
3)a
4)c
5)c
6)b
7)b
8)d
9)b
10)c