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# 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 Answer Report Discuss Option: C Explanation : Click on Discuss to view users comments. Amar said: (1:19am on Monday 4th March 2013) I have a doubt sir.I think its actually 32 bit address.for example255.255.255.0 is each class has 8 bits size so 4*8=32 bits Write your comments here:
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 Answer Report Discuss Option: A Explanation : Start and stop bits are not needed in synchronous transfer of data. Hence, it is 2400 / 8 = 300. Click on Discuss to view users comments. Write your comments here:
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 Answer Report Discuss Option: C Explanation :  Since there are six 1200 bps terminals, therefore               6 x 1200 + n x 300 = 9600               n = 8. Click on Discuss to view users comments. Write your comments here:
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 Answer Report Discuss Option: B Explanation : Click on Discuss to view users comments. Write your comments here:
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 Answer Report Discuss Option: C Explanation : Click on Discuss to view users comments. Write your comments here:

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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