Classical

Computer Networks - Protocols

6:  

How many bits internet address is assigned to each host on a TCP/IP internet which is used in all communication with the host ?

A.

16 bits

B.

48 bits 

C.

32 bits

D.

64 bits 

 
 

Option: C

Explanation :


7:  

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

A.

300

B.

250

C.

240

D.

275

 
 

Option: A

Explanation :

Start and stop bits are not needed in synchronous transfer of data.
Hence, it is 2400 / 8 = 300.


8:  

 A terminal multiplexer has six 1200 bps terminals and 'n' 300 bps terminals connected to it. If outgoing line is 9600 bps, then maximum value of n is 

A.

4

B.

16

C.

8

D.

28

 
 

Option: C

Explanation :

 Since there are six 1200 bps terminals, therefore
              6 x 1200 + n x 300 = 9600
              n = 8.


9:  

In an Ethernet network, what is the relationship between round-trip time and the collision domain?

A.

Round-trip time increases; collision domain decreases

B.

Round-trip time decreases; collision domain decreases

C.

Round-trip time decreases; collision domain increases

D.

None of these

 
 

Option: B

Explanation :


10:  

 What are the primary characteristics that distinguish a cell from a packet ?

A.

Cells are generally smaller that packets

B.

Cells do not incorporate physical address

C.

All cells have the same fixed length

D.

Packet cannot be switched

 
 

Option: C

Explanation :




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Syllabus covered in this section is-

  • ISO/OSI stack
  •  LAN technologies (Ethernet, Token ring)
  •  Flow and error control techniques
  •  Routing algorithms
  •  Congestion control
  •  TCP/UDP and sockets
  •  IP(v4)
  •  Application layer protocols (icmp, dns, smtp, pop, ftp, http)
  •  Basic concepts of hubs, switches, gateways  and router

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