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Quiz 1
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Q.1
A pure ALOHA network transmits 200-bit frames on a shared channel ofkbps. What is the requirement to make this frame collision-free?
a) 2msec
b) 4msec
c) 2sec
d) 4sec
Q.2
A pure ALOHA network transmits 200-bit frames on a shared channel ofkbps. What is the throughput if the system (all stations together) producesframes per second?
a) 150 frames
b) 80 frames
c) 135 frames
d) 96 frames
Q.3
A pure ALOHA network transmits 200-bit frames on a shared channel ofkbps. What is the throughput if the system (all stations together) producesframes per second?
a) 146 frames
b) 92 frames
c) 38 frames
d) 156 frames
Q.4
A pure ALOHA network transmits 200-bit frames on a shared channel ofkbps. What is the throughput if the system (all stations together) producesframes per second?
a) 38 frames
b) 48 frames
c) 96 frames
d) 126 frames
Q.5
A slotted ALOHA network transmits 200-bit frames using a shared channel with a 200-kbps bandwidth. Find the throughput if the system (all stations together) producesframes per second.
a) 92 frames
b) 368 frames
c) 276 frames
d) 151 frames
Q.6
A slotted ALOHA network transmits 200-bit frames using a shared channel with a 200-kbps bandwidth. Find the throughput if the system (all stations together) producesframes per second.
a) 92 frames
b) 368 frames
c) 276 frames
d) 151 frames
Q.7
A network using CSMA/CD has a bandwidth ofMbps. If the maximum propagation time (including the delays in the devices and ignoring the time needed to send a jamming signal, as we see later) is 25.6 μs, what is the minimum size of the frame?
a) 128 bytes
b) 32 bytes
c) 16 bytes
d) 64 bytes
Q.8
In collision free protocol channel efficiency is given by-
a) d/(d + log2(N))
b) d*(d + log2(N))
c) log2(N)
d) (d + log2(N))
Q.9
a) 10
b) 11
c) 12
d) 14
Q.10
a) A-B-C-J-D-K
b) A-B-C-G-H-D-K
c) A-E-D-K
d) A-E-G-H-D-K
Q.11
After performing bit stuffing on the following stream :the output is-
a) 01101111101111101111100010
b) 01101111111111111110010111
c) 10010000000000000000001101
d) 01101111111111111111110010
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