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Question Detail
Semophores are used to solve the problem of
- race condition
- process synchronization
- mutual exclusion
- belady problem
Answer: Option C
1. Which among following scheduling algorithms give minimum average waiting time
- FCFS
- SJF
- Round robin
- On priority
Answer: Option B
2. Belady anamoly occurs in
- Optimal replacement
- FIFO
- LRU
- both in FIFO and LRU
Answer: Option B
3. Root directory of a disk should be placed
- at the fixed address in the main memory
- at a fixed location on the disk
- at the fixed location on system disk
- anywhere on the disk
Answer: Option B
4. For multiprogramming operating system
- special support from processor is essential
- special support from processor is not essential
- cache memory is essential
- none of above
Answer: Option B
5. Size of virtual memory depends on
- size of data bus
- size of address bus
- size of main memory
- none of above
Answer: Option B
Thanks ! Your comment will be approved shortly !
-
Nitish Jauhri 9 years ago
this question is little bit confusing
as
https://www.google.co.in/url?s...
is saying semaphorse is for mutual exclusion
but
https://www.google.co.in/url?s...
is saying semaphores is for synchronization
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