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4 votes
1 answer
22
Applied Test Series
Suppose that the PURE ALOHA protocol is used to share a 50 Kbps satellite channel, suppose that frames are 1000 bits long. Find the maximum throughput of the system in frames/second. [Note: Assume K = 10^3, write the floor value of the answer]
Suppose that the PURE ALOHA protocol is used to share a 50 Kbps satellite channel, suppose that frames are 1000 bits long. Find the maximum throughput of the system in fr...
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1 votes
1 answer
23
Made Easy Test Series
The round trip delay between A and B is given as 60 ms, and the bottleneck bandwidth of the link between A and B is 512 KBps. What is the optimal window size (in packets) if the packet size is 64 bytes and the channel is full duplex.
The round trip delay between A and B is given as 60 ms, and the bottleneck bandwidth of the link between A and B is 512 KBps. What is the optimal window size (in packets)...
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2 votes
1 answer
24
Applied Mock Test
What will be the efficiency of the channel in (% )in CSMA/CD when bandwidth is 20 Mbps. The speed of the signal is 4000 Km/s. The frame size is 1000 bits and the length of the cable 200 m.[ Note: round off the final answer in upto one decimal place]
What will be the efficiency of the channel in (% )in CSMA/CD when bandwidth is 20 Mbps. The speed of the signal is 4000 Km/s. The frame size is 1000 bits and the length ...
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0 votes
1 answer
25
ACE academy Test series : Computer networks
At a transmission rate of 20Mbps and propagation speed of 2*10^8m/s. How many meters of the cable is one-bit delay in an Ethernet interface equivalent?
At a transmission rate of 20Mbps and propagation speed of 2*10^8m/s. How many meters of the cable is one-bit delay in an Ethernet interface equivalent?
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1 votes
1 answer
26
Applied Test Series
In a CDMA/CD network with a data rate of 20 Mbps, the maximum distance between station pair is found to be 2000 m then what is the minimum transmission time(in sec) for the network if the speed is 4 * 10 ^4 m/sec ?
In a CDMA/CD network with a data rate of 20 Mbps, the maximum distance between station pair is found to be 2000 m then what is the minimum transmission time(in sec) for t...
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0 votes
1 answer
27
Baud Rate
what is baud rate exactly? and what does it signifies?
what is baud rate exactly? and what does it signifies?
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0 votes
2 answers
30
Andrew S. Tanenbaum Edition 5th Exercise 4 Question 20 (Page No. 352)
How many frames per second can gigabit Ethernet handle? Think carefully and take into account all the relevant cases. Hint: the fact that it is gigabit Ethernet matters.
How many frames per second can gigabit Ethernet handle? Think carefully and takeinto account all the relevant cases. Hint: the fact that it is gigabit Ethernet matters.
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0 votes
1 answer
32
Andrew S. Tanenbaum Edition 5th Exercise 4 Question 17 (Page No. 352)
An IP packet to be transmitted by Ethernet is 60 bytes long, including all its headers. If LLC is not in use, is padding needed in the Ethernet frame, and if so, how many bytes?
An IP packet to be transmitted by Ethernet is 60 bytes long, including all its headers.If LLC is not in use, is padding needed in the Ethernet frame, and if so, how manyb...
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13 votes
5 answers
34
Formula for calculating efficiency of ethernet
What formula to use for calculating efficiency of ethernet is it $\frac{1}{1+6.44a}$ or $\frac{1}{1+5.44a}$ or $\frac{1}{1+5a}$​ I saw three versions for calculating the same thing in different places. I want to know which one is correct.
What formula to use for calculating efficiency of ethernet is it $\frac{1}{1+6.44a}$ or $\frac{1}{1+5.44a}$ or $\frac{1}{1+5a}$​I saw three versions for calculating...
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0 votes
1 answer
36
Ethernet
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1 votes
2 answers
38
UGC NET CSE | June 2014 | Part 2 | Question: 03
The minimum frame length for $10$ Mbps Ethernet is ________ bytes and maximum is _______ bytes. $64$ & $128$ $128$ & $1518$ $1518$ & $3036$ $64$ & $1518$
The minimum frame length for $10$ Mbps Ethernet is ________ bytes and maximum is _______ bytes.$64$ & $128$$128$ & $1518$ $1518$ & $3036$$64$ & $1518$
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16 votes
3 answers
40
GATE CSE 2007 | Question: 19
In Ethernet when Manchester encoding is used, the bit rate is: Half the baud rate Twice the baud rate Same as the baud rate None of the above
In Ethernet when Manchester encoding is used, the bit rate is:Half the baud rateTwice the baud rateSame as the baud rateNone of the above
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