segmentation and paging

Question

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@Akriti

I don't know what A). means. What I know is that segmentation is done by us, so we can code , optimize and place segments in MM acc. to our suitability. Hence, it is sometimes best and more efficient than paging but has a high overhead and very tough to organize .To put everything in MM, if it is done by us, it has high overhead, so , D) is true .

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so,kapil statment A is saying that segmentation gives program cntrol as told by you.

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But, it is not clear what it is saying, so I think it is false.

Answer 1

Option  C Should be the Answer.

A) : TRUE : Segmentation provides explicit programmer control over the units of transfer in the memory system. This control implies that a segmentation system requires more effort to use than does a paging system , unless the segments are automatically generated , say , by the compiler.

B) : TRUE : Segments can be more efficient than paging , since the programmer can specify the set of virtual address locations to be used at about the same time in execution , such as "pass 2 of the compiler".

D) : TRUE : Virtual memory system will have more difficulty placing segments in primary memory because they are variable-sized and cause the same kind of external fragmentation problems that variable-sized memory partitions systems do

C) : FALSE : In the Final Analysis , Segmentation is probably better suited to the behaviour of the process than is paging , although it may be harder to use , and it is definitely harder to implement.

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