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External OS Issues - Quiz
Each question is worth one point. Select the best answer or answers for each question.
1.
Which of the following are sources of delay in disk I/O?
Please select
all the correct answers
.
A.
Seek delay
B.
Rotational delay
C.
Memory transfer delay
D.
Data transmission delay
2.
What is the main symptom of a CPU shortage on a host?
Please select
the best answer
.
A.
CPU run queue greater than 50% of the CPU on the host
B.
CPU run queue greater than the number of CPUs on the host
C.
CPU is idle less than 5% of the time
D.
CPU is 100% active
3.
What is the main symptom of a memory shortage on a host?
Please select
the best answer
.
A.
CPU enqueues
B.
Excessive seek delay
C.
OS paging
D.
CPU is at 100%
