An asynchronous call___________
A) returns immediately, without waiting for the i/o to complete
B) does not return immediately and waits for the i/o to complete
C) consumes a lot of time
D) is too slow
Correct Answer:
Verified
Q1: A block device transfers_
A)bytes one by one
B)block
Q2: What is a dedicated device?
A)opposite to a
Q3: A keyboard is an example of a
Q4: In polling_
A)busy - wait cycles wait for
Q5: A non blocking system call
A)halts the execution
Q7: Buffering is done to_
A)cope with device speed
Q8: Caching is_ spooling.
A)same as
B)not the same as
C)all of
Q9: Caching_
A)holds a copy of the data
B)is fast
Q10: Spooling_
A)holds a copy of the data
B)is fast
Q11: The_ keeps state information about the use of
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