Computer Organization MCQ set number 00082

1. SCSI stands for ________
a) Small Computer System Interface
b) Switch Computer system Interface
c) Small Component System Interface
d) None of the mentioned

Answer

Answer: a [Reason:] The SCSI BUS is one of the expansion BUSes used in a system.

2. ANSI stands for ___
a) American National System Interface
b) ASCII National Standard Interface
c) American Network System Interface
d) American National Standard Institute

Answer

Answer: d [Reason:] This a standard for designing BUSes and other system components.

3. A narrow SCSI BUS has _____ data lines.
a) 6
b) 8
c) 16
d) 4

Answer

Answer: b [Reason:] The SCSI BUS which is narrow is capable of transfering 8 bits of data at a time.

4. Single ended transmission means
a) That all the signals have a similar bit pattern
b) That the signals have a common source
c) That the signals have a common ground return
d) That the signals have a similar voltage signature

Answer

Answer: c [Reason:] These type of signals are a common feature of the SCSI BUS.

5. HVD stands for ___
a) High Voltage Differential
b) High Voltage Density
c) High Video Definition
d) None of the mentioned

Answer

Answer: a [Reason:] This is a type of signaling which uses 5v of current.

6. For better transfer rates on the SCSI BUS the length of the cable is limited to ______
a) 2m
b) 4m
c) 1.3m
d) 1.6m

Answer

Answer: d [Reason:] To increase the transmission rate in SCSI in SE mode of transfer the wire length is restricted to 1.6m.

7. The maximum number of devices that can be connected to SCSI BUS is ______
a) 12
b) 10
c) 16
d) 8

Answer

Answer: c [Reason:] None.

8. THe SCSI BUS is connected to the processor through _____
a) SCSI Controller
b) Bridge
c) Switch
d) None of the mentioned

Answer

Answer: a [Reason:] This is used to co-ordinate and monitor the data transfer over the BUS.

9. The mode of data transfer used by the controller is _____
a) Interrupt
b) DMA
c) Asynchronous
d) Synchronous

Answer

Answer: b [Reason:] None.

10. The data is stored on the disk in the form of blocks called _____
a) Pages
b) Frames
c) Sectors
d) Tables

Answer

Answer: c [Reason:] The data is stored on the disk in the form of a collection of blocks called as sectors.