Computer Organization MCQ set number 00075

1. The disk system consists of which of the following:
i. Disk
ii. Disk drive
iii. Disk controller
a) i and ii
b) i ,ii and iii
c) ii and iii
d) i

Answer

Answer: b [Reason:] None.

2. The set of corresponding tracks on all surfaces of a stack of disks form a ______
a) Cluster
b) Cylinder
c) Group
d) Set

Answer

Answer: b [Reason:] The data is stored in the these sections called as cylinders.

3. The data can be accessed from the disk using ___
a) Surface number
b) Sector number
c) Track number
d) All of the mentioned

Answer

Answer: d [Reason:] None.

4. The read and write operations usually start at ______ of the sector.
a) Center
b) Middle
c) From the last used point
d) Boundaries

Answer

Answer: d [Reason:] The heads read and write data from the ends to the center.

5. To distinguish between two sectors we make use of ________
a) Inter sector gap
b) Splitting bit
c) Numbering bit
d) None of the mentioned

Answer

Answer: a [Reason:] This means that we leave a little gap between each sectors to differentiate between them.

6. The _____ process divides the disk into sectors and tracks.
a) Creation
b) Initiation
c) Formatting
d) Modification

Answer

Answer: c [Reason:] The formatting process deletes the data present and does the creation of sectors and tracks.

7. The access time is composed of ____
a) Seek time
b) Rotational delay
c) Latency
d) Both Seek time and Rotational delay

Answer

Answer: d [Reason:] The seek time refers to the time required to move the head to the required disk.

8. The disk drive is connected to the system by using the _____
a) PCI bus
b) SCSI bus
c) HDMI
d) ISA

Answer

Answer: b [Reason:] None.

9. _______ is used to deal with the difference in the transfer rates between the drive and the bus.
a) Data repeaters
b) Enhancers
c) Data buffers
d) None of the mentioned

Answer

Answer: c [Reason:] The buffers are added to store the data from the fast device and to send it to the slower device at its rate.

10. _______ is used to detect and correct the errors that may occur during data transfers.
a) ECC
b) CRC
c) Checksum
d) None of the mentioned

Answer

Answer: a [Reason:] ECC stands for Error Correcting Code.