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Computer Science - Operating Systems Concepts

Exercise : Operating Systems Concepts - Section 4
21.
Virtual Memory
is a method of memory allocation by which the program is subdivided into equal portions, or pages and core is subdivided into equal portions or blocks.
consists of those addresses that may be generated by a processor during execution of a computation.
is a method of allocating processor time.
allows multiple programs to reside in separate areas of core at the time.
None of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
22.
In a magnetic disk, data is recorded in a set of concentric tracks which are subdivided into
periods
sectors
zones
groups
None of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
23.
The total time to prepare a disk drive mechanism for a block of data to be read from it is
latency
latency plus transmission time
latency plus seek time
latency plus seek time plus transmission time
None of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
24.
Part of a program where the shared memory is accessed and which should be executed invisibly, is called
semaphores
directory
critical section
mutual exclusion
None of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
25.
Indicate which, of the following, is not true about Nassi-Shneiderman charts
These charts are type of graphical design tool
These charts cannot represent CASE constructs
These charts can represent three fundamental control structures
All of the above
None of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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