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OS Memory Management
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OS Memory Management
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OS Memory Management
In paging the user provides only ________ which is partitioned by the hardware into ________ and ______
one address, page number, offset
one offset, page number, address
page number, offset, address
none of the mentioned
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rikazzz
Comment
OS Memory Management
What is compaction?
a technique for overcoming internal fragmentation
a paging technique
a technique for overcoming external fragmentation
a technique for overcoming fatal error
Author:
rikazzz
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OS Memory Management
A memory buffer used to accommodate a speed differential is called ____________
stack pointer
cache
accumulator
disk buffer
Author:
rikazzz
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OS Memory Management
The size of a page is typically ____________
varied
power of 2
power of 4
none of the mentioned
Author:
rikazzz
Comment
OS Memory Management
Memory management technique in which system stores and retrieves data from secondary storage for use in main memory is called?
fragmentation
paging
mapping
none of the mentioned
Author:
rikazzz
Comment
OS Memory Management
If the offset is legal ____________
it is used as a physical memory address itself
it is subtracted from the segment base to produce the physical memory address
it is added to the segment base to produce the physical memory address
none of the mentioned
Author:
rikazzz
Comment
OS Memory Management
Swapping _______ be done when a process has pending I/O, or has to execute I/O operations only into operating system buffers.
must
can
must never
maybe
Author:
rikazzz
Comment
OS Memory Management
The disadvantage of moving all process to one end of memory and all holes to the other direction, producing one large hole of available memory is ____________
the cost incurred
the memory used
the CPU used
all of the mentioned
Author:
rikazzz
Comment
OS Memory Management
If the process can be moved during its execution from one memory segment to another, then binding must be ____________
delayed until run time
preponed to compile time
preponed to load time
none of the mentioned
Author:
rikazzz
Comment
OS Memory Management
With relocation and limit registers, each logical address must be _______ the limit register.
less than
equal to
greater than
none of the mentioned
Author:
rikazzz
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