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Questions by dirac
1
votes
2
answers
1
counting semaphore related question
A binary semaphore ensures mutual exclusion. Does a counting semaphore ensure mutual exclusion too? Please justify your answers.
A binary semaphore ensures mutual exclusion. Does a counting semaphore ensure mutual exclusion too?Please justify your answers.
1.6k
views
asked
Nov 13, 2015
Operating System
semaphore
process-synchronization
operating-system
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1
votes
1
answer
2
External fragmentation in Best fit memory allocation policy
Assume 140K, 260K, 60K memory is free. What is the total external fragmentation that arises for the following requests 110K, 30K, 210K, 50K using Best-fit policy, assume no compaction A) 120K B) 110K C) 60K D)30K My ans: But the given answer is: Please explain.
Assume 140K, 260K, 60K memory is free. What is the total external fragmentation that arises for the following requests 110K, 30K, 210K, 50K using Best-fit policy, assume ...
4.2k
views
asked
Nov 13, 2015
Operating System
memory-management
test-series
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0
votes
2
answers
3
Which utilization formula to use and why?
Consider sliding window protocol for a 10 MBps point to point link with propagation delay of 2 sec. If frame size is of 4kB then what wil be the minimum number of bits number required for the sequence number? Which approach to take and ... difference in frame numbers, why does this arise and which one is correct. The answer is not affected in this question.
Consider sliding window protocol for a 10 MBps point to point link with propagation delay of 2 sec. If frame size is of 4kB then what wil be the minimum number of bits nu...
2.1k
views
asked
Oct 6, 2015
Computer Networks
computer-networks
sliding-window
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3
votes
3
answers
4
Transmission rate in a 3 node 2 link sliding window system
The distance between A to B is 4000 km. The distance between B and C is 1000 km.The propogation delay is 5 micro sec/ km for both the links. The data rate between A and B is 100kbps. Both the links are full duplex. All data frames are ... rate (in kbps) between B and C so that buffers of node B are not flooded? A. 100 B.150 C.200 D.250
The distance between A to B is 4000 km. The distance between B and C is 1000 km.The propogation delay is 5 micro sec/ km for both the links. The data rate between A and B...
3.4k
views
asked
Oct 5, 2015
Computer Networks
computer-networks
stop-and-wait
sliding-window
linear-algebra
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