GATE CSE 2000 | Memory Management Question 49 | Operating Systems

GATE CSE 2000

MCQ (Single Correct Answer)

-0.6

Suppose the time to service a page fault is on the average $$10$$ milliseconds, while a memory access takes $$1$$ microsecond. Then a $$99.99$$% hit ratio results in average memory access time of.

$$1.9999$$ milliseconds

$$1$$ millisecond

$$9.999$$ microseconds

$$1.9999$$ microseconds

GATE CSE 1999

MCQ (More than One Correct Answer)

-0.6

Which of the following is/are advantage of virtual memory?

Faster access to memory on an average.

Processes can be given protected address spaces.

Linker can assign addresses independent of where the program will be loaded in physical memory.

Programs larger than the physical memory size can be run.

GATE CSE 1998

MCQ (Single Correct Answer)

-0.6

The overlay tree for a program is as shown below: GATE CSE 1998 Operating Systems - Memory Management Question 46 English

What will be the size of the partition (in physical memory) required to load (and run) this program?

$$12$$ $$KB$$

$$14$$ $$KB$$

$$10$$ $$KB$$

$$8$$ $$KB$$

GATE CSE 1998

MCQ (Single Correct Answer)

-0.6

If an instruction takes $${\rm I}$$ microseconds and a page fault takes an additional $$j$$ microseconds, the effective instruction time if on the average a page fault occurs every $$k$$ instruction is:

$$i + \left( {j/k} \right)$$

$$i + j{}^ * k$$

$$\left( {i + j} \right)/k$$

$$\left( {i + j} \right){}^ * k$$

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