Operating systems concept MCQ Test 30

By | October 3, 2017
Question 1
Which of the following is NOT a valid deadlock prevention scheme?
A
Release all resources before requesting a new resource
B
Number the resources uniquely and never request a lower numbered resource than the last one requested
C
Never request a resource after releasing any resource
D
Request and all required resources be allocated before execution
Question 2
An embedded object might appear in a document as
A
Embedding
B
Linking
C
Both
D
None of above
Question 3
Which is not an external command?
A
Edit
B
XCOPY
C
Sys
D
None of the above
Question 4
Which of following need a device driver ?
A
Cache
B
Disk
C
Main Menory
D
Registers
Question 5
An operating system is known to be a layer of
A
Hardware
B
Software
C
Processes
D
Units
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There are 5 questions to complete.

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