Classical

Computer Networks - Protocols

16:  

 Which of the following TCP/IP internet protocol a diskless machine uses to obtain its IP address from a server ?

A.

RDP

B.

ARP

C.

RIP

D.

RARP

 
 

Option: D

Explanation :

ARP is Adrress Resolution Protocol which obtains  MAC address from IP address and is used to find the hardware address of a computer network card based on the IP address.

RARP is Reverse Address Resolution Protocol which is used by host to find the IP address based on the hardware address of a computer network card.

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123 said: (5:08am on Thursday 27th June 2013)
ARP is used for logical to physical...and physical address is reterive from NIC....it should be RARP which converts physical to logical which is on diskles..so option should be RARP

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17:  

How many characters per sec (7 bits + 1 parity) can be transmitted over a 2400 bps line if the transfer is asynchronous (1 start and 1 stop bit) ?

A.

300

B.

240

C.

250

D.

275

 
 

Option: B

Explanation :

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18:  

 A modern constellation diagram has data point at (0, 1) and (0, 2). The modern uses

A.

phase modulation

B.

amplitude modulation 

C.

both (a) and (b)

D.

none of these 

 
 

Option: B

Explanation :

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19:  

 ICI (Interface Control Information) is

A.

used to transfer user data from layer to layer

B.

used to exchange information by peer entities at different sites on the network to instruct an entity to perform a service function

C.

a combination of service data unit (SDU) and protocol control information (PCI)

D.

a temporary parameter passed between N and N - 1 layers to involve service functions between two layers

 
 

Option: D

Explanation :

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20:  

 Repeaters function in

A.

physical layer

B.

data link layer

C.

network layer

D.

both (a) and (b) 

 
 

Option: A

Explanation :

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