This set of Computer Organization and Architecture Multiple Choice Questions & Answers (MCQs) focuses on “Asynchronous BUS”.
1. The master indicates that the address is loaded onto the BUS, by activating _____ signal.
a) MSYN
b) SSYN
c) WMFC
d) INTR
View Answer
Explanation: The signal activated by the master in the asynchronous mode of transmission is used to intimate the slave the required data is on the BUS.
2. The devices with variable speeds are usually connected using asynchronous BUS.
a) True
b) False
View Answer
Explanation: The devices with variable speeds are connected using asynchronous BUS, as the devices share a master-slave relationship.
3. The MSYN signal is initiated __________
a) Soon after the address and commands are loaded
b) Soon after the decoding of the address
c) After the slave gets the commands
d) None of the mentioned
View Answer
Explanation: This signal is activated by the master to tell the slave that the required commands are on the BUS.
4. In IBM’s S360/370 systems _____ lines are used to select the I/O devices.
a) SCAN in and out
b) Connect
c) Search
d) Peripheral
View Answer
Explanation: The signal is used to scan and connect to input or output devices.
5. The meter in and out lines are used for __________
a) Monitoring the usage of devices
b) Monitoring the amount of data transferred
c) Measure the CPU usage
d) None of the mentioned
View Answer
Explanation: The line is used to monitor the usage of the device for a process.
6. MRDC stands for _______
a) Memory Read Enable
b) Memory Ready Command
c) Memory Re-direct Command
d) None of the mentioned
View Answer
Explanation: The command is used to initiate a read from memory operation.
7. The BUS that allows I/O, memory and Processor to coexist is _______
a) Attributed BUS
b) Processor BUS
c) Backplane BUS
d) External BUS
View Answer
Explanation: None.
8. The transmission on the asynchronous BUS is also called _____
a) Switch mode transmission
b) Variable transfer
c) Bulk transfer
d) Hand-Shake transmission
View Answer
Explanation: The asynchronous transmission is termed as Hand-Shake transfer because the master intimates the slave after each step of the transfer.
9. Asynchronous mode of transmission is suitable for systems with multiple peripheral devices.
a) True
b) False
View Answer
Explanation: This mode of transmission is suitable for multiple device situation as it supports variable speed transfer.
10. The asynchronous BUS mode of transmission allows for a faster mode of data transfer.
a) True
b) False
View Answer
Explanation: None.
Sanfoundry Global Education & Learning Series – Computer Organisation and Architecture.
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