Test: SCSI BUS - Input-Output Organization


20 Questions MCQ Test Computer Architecture & Organisation (CAO) | Test: SCSI BUS - Input-Output Organization


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QUESTION: 1

The key features of the SCSI BUS is

Solution:

Answer: b
Explanation: The SCSI BUS can overlap various data transfer requests by the devices.

QUESTION: 2

In a data transfer operatioon involving SCSI BUS, the control is with ______

Solution:

Answer: d
Explanation: The initiator involves in arbitration process and after winning the BUS it’ll handover the control to the target controller.

QUESTION: 3

In SCSI transfers the processor is not aware of the data being transfered.

Solution:

Answer: a
Explanation: The processor or the controller is unaware of the data being transfered.

QUESTION: 4

 The DB(P) line means,

Solution:
QUESTION: 5

The BSY signal signifies

Solution:

Answer: a
Explanation: This signal is generally initiated when the BUS is currently occupied in an operation.

QUESTION: 6

 The SEL signal signifies

Solution:

Answer: b
Explanation: This signal is usually asserted during the selection or reselection process.

QUESTION: 7

________ signal is asserted when the initiator wishes to send a message to the target.

Solution:

Answer: d
Explanation: The ATN signal is short for attention, which is used to initimate the target that the initiator sent a message to it.

QUESTION: 8

The MSG signal is used

Solution:
QUESTION: 9

_____ is used to reset all the device controls to their startup state.

Solution:
QUESTION: 10

The SCSI BUS uses ______ arbitration.

Solution:

Answer: a
Explanation: The SCSI uses distributed arbitration to select the device to give the BUS control.

QUESTION: 11

 SCSI stands for ________

Solution:

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

QUESTION: 12

ANSI stands for _________

Solution:

Answer: d
Explanation: This a standard for designing BUSes and other system components.

QUESTION: 13

A narrow SCSI BUS has _____ data lines.

Solution:

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

QUESTION: 14

 Single ended transmission means

Solution:

Answer: c
Explanation: These type of signals are a common feature of the SCSI BUS.

QUESTION: 15

HVD stands for _________

Solution:

Answer: a
Explanation: This is a type of signaling which uses 5v of current.

QUESTION: 16

 For better transfer rates on the SCSI BUS the length of the cable is limited to ______

Solution:

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

QUESTION: 17

The maximum number of devices that can be connected to SCSI BUS is ______

Solution:
QUESTION: 18

THe SCSI BUS is connected to the processor through _____

Solution:

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

QUESTION: 19

The mode of data transfer used by the controller is _____

Solution:
QUESTION: 20

The data is stored on the disk in the form of blocks called _____

Solution:

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

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