Sunday, April 30, 2006

Storage Exam Questions 1: Disk Drive

It has been over four months since I wrote anything about storage certification. Previously, I mentioned websites of industry associations, standards organizations and companies that contain material helpful for exam preparation. Here are eight disk drive questions to help you prepare for certification exam:

1. What factors impact performance of disk drive?

A. Seek Time
B. Latency
C. Transfer Time
D. Array Cache

2. Which parameter is not part of internal addressing of disk drive?

A. Cylinder
B. Block
C. Head
D. Sector

3. Which function in a disk drive tries to anticipate the next data block being accessed by the user?

A. Sector
B. Buffer
C. Track
D. Head

4. What is Seek Time?

A. The time disk takes to move head to a particular track on the disk.
B. The time for disk to rotate to place the correct location under the head.
C. The time disk takes to fill the disk buffer memory.
D. The time taken by disk interface in carrying the data from disk.

5. What is true for a Head?

A. Information accessed without undertaking a seek operation.
B. Subdivision of a disk surface.
C. Used to define a single disk surface.
D. Controller overhead.

6. What is not true for a Buffer?

A. Memory
B. Holding space for data until written to surface
C. Located between disk interface and disk electronics.
D. Same size as a sector.

7. Which one in not part of formatting a disk?

A. Divide track into sectors.
B. Repair unusable sectors.
C. Find damaged sectors.
D. Flag bad sectors.

8. What parameter is part of external addressing of disk drive?

A. Block
B. Head
C. Cylinder
D. Buffer Credit

Previous certification related blog entries:

Storage Certification Material

Training Feedback

Backup Tutorial

Storage Training, Certification & Large Archive

And you most probably guessed it by now, I am quite busy with work that pays my bills. So, I haven't got around to reading or writing anything interesting but bear with me. In this business, busy times are followed by down time and vice-versa.

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