Computer Networks

Data Communication & Network Security Network Fundamentals Protocols Reference Models

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Computer Networks - Protocols

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: (11:19pm on Sunday 3rd 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: Updating your Comments.. Updating your Comments..

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: Updating your Comments.. Updating your Comments..

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: Updating your Comments.. Updating your Comments..

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: Updating your Comments.. Updating your Comments..

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: Updating your Comments.. Updating your Comments..

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