Operating System (3140702) MCQs

MCQs of I/O Management & Disk scheduling

Showing 1 to 10 out of 40 Questions
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1.
I/O hardware contains ____________
(a) bus
(b) controller
(c) I/O port and its registers
(d) All of the mentioned
Answer:

Option (d)

2.
When hardware is accessed by reading and writing to the specific memory locations, then it is called ____________
(a) port-mapped I/O
(b) controller-mapped I/O
(c) bus-mapped I/O
(d) memory-mapped I/O
Answer:

Option (d)

3.
Device drivers are implemented to interface ____________
(a) character devices
(b) block devices
(c) network devices
(d) All of the mentioned
Answer:

Option (d)

4.
The device-status table contains ____________
(a) each I/O device type
(b) each I/O device address
(c) each I/O device state
(d) All of the mentioned
Answer:

Option (d)

5.
Which buffer holds the output for a device?
(a) Spool
(b) Output
(c) Status
(d) Magic
Answer:

Option (a)

6.
In _______ information is recorded magnetically on platters.
(a) electrical disks
(b) magnetic disks
(c) assemblies
(d) cylinders
Answer:

Option (b)

7.
The heads of the magnetic disk are attached to a _____ that moves all the heads as a unit.
(a) spindle
(b) track
(c) disk arm
(d) pin
Answer:

Option (c)

8.
The set of tracks that are at one arm position make up a ___________
(a) magnetic disks
(b) cylinders
(c) assemblies
(d) electrical disks
Answer:

Option (b)

9.
The time taken to move the disk arm to the desired cylinder is called the ____________
(a) positioning time
(b) random access time
(c) seek time
(d) rotational latency
Answer:

Option (c)

10.
The time taken for the desired sector to rotate to the disk head is called ____________
(a) rotational latency
(b) positioning time
(c) random access time
(d) seek time
Answer:

Option (a)

Showing 1 to 10 out of 40 Questions
1 2 3 4