MCQs City stays free thanks to ads. Please turn off your ad blocker for this site so content and features keep working.
Tricky Network Security
Q
A pure ALOHA network transmits 200-bit frames on a shared channel of 200 kbps. What is the throughput if the system (all stations together) produces 500 frames per second?
AA. 146 frames
BB. 92 frames
CC. 38 frames
DD. 156 frames
Correct Answer:
B. B. 92 frames
Explanation:
If the system creates 500 frames per second, or 1/2 frames per millisecond. Then G = 1/2. S = G × e−2G = 0.184 (18.4 percent) This means that Throughput = 500 × 0.184 = 92 Only 92 frames out of 500 will probably survive This is the maximum throughput case, percentage-wise.
