1. | Paging _________. |
a. | solves the memory fragmentation problem |
b. | allows modular programming |
c. | allows structured programming |
d. | avoids deadlock |
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Answer: (a).solves the memory fragmentation problem
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2. | Which of the following memory allocation scheme suffers from External fragmentation? |
a. | Segmentation |
b. | Pure demand paging |
c. | Swapping |
d. | Paging |
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Answer: (a).Segmentation
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3. | The problem of fragmentation arises in ________. |
a. | Static storage allocation |
b. | Stack allocation storage |
c. | Stack allocation with dynamic binding |
d. | Heap allocation |
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Answer: (d).Heap allocation
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4. | _________ allocates the largest hole (free fragmant) available in the memory. |
a. | Best Fit |
b. | Worst Fit |
c. | First Fit |
d. | None of the above |
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Answer: (b).Worst Fit
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5. | Thrashing occurs ________. |
a. | when excessive swapping takes place |
b. | when you thrash your computer |
c. | whenever deadlock occurs |
d. | when no swapping takes place |
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Answer: (a).when excessive swapping takes place
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6. | Thrashing ________. |
a. | Reduces page I/O |
b. | Decreases the degree of multiprogramming |
c. | Implies excessive page I/O |
d. | Improve the system performance |
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Answer: (c).Implies excessive page I/O
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7. | By which of following the problem of thrashing is significantly affected ? |
a. | program size |
b. | program structure |
c. | primary storage |
d. | secondary storage |
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Answer: (b).program structure
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8. | If the property of locality of reference is well pronounced in a program |
a. | the number of page faults will be more |
b. | the number of page faults will be less |
c. | the number of page faults will same |
d. | none of above |
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Answer: (b).the number of page faults will be less
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9. | Which one is true |
a. | The linkage editor is used to edit programs which have to later link together |
b. | The linkage editor links object module during compiling |
c. | The linkage editor links objects modules and resolves external references between them before loading |
d. | none of above |
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Answer: (c).The linkage editor links objects modules and resolves external references between them before loading
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10. | A high paging rate |
a. | may cause a high I/O rate |
b. | keeps the system running well |
c. | is a symptom of too much processor activity |
d. | always creates a slow system |
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Answer: (a).may cause a high I/O rate
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