A disadvantage of the contention approach for LANs, such as CSMA/CD, is the capacity wasted due to multiple stations attempting
1 answer:
Response:
The problem is summarized in the following explanation segment.
Detailed explanation:
The estimate of the slots or positions lost due to simultaneous transmission attempts can be calculated as follows:
Evaluating the likelihood of transmitting gives us "p".
When considering two or more attempts, we arrive at
Fraction of slots wasted,
=
Substituting the values yields
=
=
Thus, the answer appears to be correct.
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Answer:
Refer to the explanation below.
Step-by-step explanation:
We start with a small aircraft that flies 760,320 yards within a duration of 2 hours.
A)
The formula for distance is:
To isolate the rate r, we divide both sides by time:
B)
To calculate the rate in yards per hour, divide the total yards by the hours taken. Therefore:
Perform division:
Thus, the aircraft speeds at 380,160 yards every hour.
C)
There are 1,760 yards in a mile.
To compute the speed in miles per hour, we apply dimensional analysis.
We recognize the rate is 380,160 yards per hour:
To cancel "yards" from the numerator, we multiply by 1 mi/1,760 yards. Therefore:
This eliminates yards:
Now, multiply the values across:
Then divide:
The final rate for the plane is 216 miles per hour.
D)
Miles are a more appropriate measurement in this context because the distance is substantial, making it impractical to express using yards. A rate of 380,160 yards per hour is excessive, whereas 216 miles per hour provides a clearer understanding.