1
To resolve the clash over the access of the system bus, we use ______.
Correct Answer
Bus arbitrator
☑ MCQ PRACTICE
Computer Organization and Architecture Unit 5
Practice objective questions for quick revision and examination preparation. Try answering each question before revealing the answer.
Computer Organization and Architecture - Unit-5
2
The device which is allowed to initiate data transfers on the bus at any time is called _____.
Correct Answer
Bus master
3
______ bus arbitration approach uses the involvement of the processor.
Correct Answer
Centralised arbitration
4
The circuit used for the request line is a _________.
Correct Answer
Open-drain
5
The Centralised bus arbitration is similar to ______ interrupt circuit.
Correct Answer
Daisy chain
6
When the processor receives the request from a device, it responds by sending _____.
Correct Answer
Bus grant signal
7
In Centralised arbitration, ______ is/are the bus master.
Correct Answer
Both Processor and DMA controller
8
Once the bus is granted to a device ___________.
Correct Answer
It activates the bus busy line
9
The bus busy line is made of ________.
Correct Answer
Open-collector circuit
10
After the device completes its operation, _____ assumes the control of the bus.
Correct Answer
Processor
11
The bus busy line is used:
Correct Answer
To indicate the bus is already allocated
12
Distributed arbitration makes use of ______.
Correct Answer
4-bit ID
13
In Distributed arbitration, the device requesting the bus ______.
Correct Answer
Asserts the Start arbitration signal
14
How is a device selected in Distributed arbitration?
Correct Answer
By ORing the signals passed on all the 4 lines
15
If two devices A and B contesting for the bus have IDs 5 and 6 respectively, which device gets the bus based on Distributed arbitration?
Correct Answer
Device B
16
______ have been developed specifically for pipelined systems.
Correct Answer
Optimizing compilers
17
The pipelining process is also called ______.
Correct Answer
Assembly line operation
18
The fetch and execution cycles are interleaved with the help of ________.
Correct Answer
Clock
19
Each stage in pipelining should be completed within ____ cycle.
Correct Answer
1
20
In pipelining, the task which requires the least time is performed first.
Correct Answer
False