MCQOPTIONS
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MCQOPTIONS
This section includes 12 Mcqs, each offering curated multiple-choice questions to sharpen your Operating System knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
RAID level ______ is also known as memory style error correcting code(ECC) organization. |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| Answer» C. 3 | |
| 2. |
Consider a disk queue with requests for I/O to blocks on cylinders :98 183 37 122 14 124 65 67Considering SSTF (shortest seek time first) scheduling, the total number of head movements is, if the disk head is initially at 53 : |
| A. | 600 |
| B. | 620 |
| C. | 630 |
| D. | 640 |
| Answer» E. | |
| 3. |
The mean time to failure of a mirrored disk depends on :I) the mean time to failure of individual disksII) the mean time to repair |
| A. | Only I |
| B. | Only II |
| C. | Both I and II |
| D. | Neither I nor II |
| Answer» D. Neither I nor II | |
| 4. |
For swap space created in a seperate disk partition where no file system or directory structure is placed, _____________ used to allocate and deallocate the blocks. |
| A. | special routines must be |
| B. | normal file system routines can be |
| C. | normal file system routines cannot be |
| D. | swap space storage manager is |
| Answer» E. | |
| 5. |
When a fixed amount of swap space is created during disk partitioning, more swap space can be added only by :I) repartitioning of the diskII) adding another swap space elsewhere |
| A. | only I |
| B. | only II |
| C. | both I and II |
| D. | neither I nor II |
| Answer» D. neither I nor II | |
| 6. |
The data structue for a sector typically contains : |
| A. | header |
| B. | data area |
| C. | trailer |
| D. | all of the mentioned |
| Answer» E. | |
| 7. |
______ is used in operating system to separate mechanism from policy. |
| A. | Single level implementation |
| B. | Two level implementation |
| C. | Multi level implementation |
| D. | None of the above |
| Answer» C. Multi level implementation | |
| 8. |
The amount of time required to read a block of data from a disk into memory is composed of seek time, rotational latency, and transfer time. Rotational latency refers to |
| A. | the time its takes for the platter to make a full rotation |
| B. | the time it takes for the read-write head to move into position over the appropriate track |
| C. | the time it takes for the platter to rotate the correct sector under the head |
| D. | none of the above |
| Answer» B. the time it takes for the read-write head to move into position over the appropriate track | |
| 9. |
Which RAID level refers to disk mirroring? |
| A. | 0 |
| B. | 1 |
| C. | 2 |
| D. | 3 |
| Answer» C. 2 | |
| 10. |
A_TYPICAL_TAPE_DRIVE_IS__________A_TYPICAL_DISK_DRIVE.?$ |
| A. | more expensive than |
| B. | cheaper than |
| C. | of the same cost as |
| D. | none of the mentioned |
| Answer» B. cheaper than | |
| 11. |
The surface area of a tape is ________ the surface area of a disk.$ |
| A. | much lesser than |
| B. | much larger than |
| C. | equal to |
| D. | none of the mentioned |
| Answer» C. equal to | |
| 12. |
Random access to tape is _______ a disk seek? |
| A. | much slower than |
| B. | much faster than |
| C. | comparable to |
| D. | none of the mentioned |
| Answer» B. much faster than | |