Operating systems concept MCQ Test 29

By | October 3, 2017
Question 1
Condition codes are bits typically set by the
A
Processor execution
B
processor operation
C
Processor hardware
D
Processor software
Question 2
With ..... a requested page and several subsequent pages are read and cached.
A
write ahead
B
read ahead
C
free-behind
D
add-front
Question 3
Which of the following is characteristic of an operating system?
A
resource management
B
error recovery
C
memory management
D
All the above
Question 4
MD5 produces ..... bits hash data.
A
128
B
150
C
160
D
112
Question 5
In a paged memory, the page hit ratio is 0.35. The required to access a page in secondary memory is equal to 100 ns. The time required to access a page in primary memory is 10 ns. The average time required to access a page is :
A
3.0 ns
B
68.0 ns
C
68.5 ns
D
78.5 ns
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There are 5 questions to complete.

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