Top 550+ Solved Operating System (OS) MCQ Questions Answer
Q. Causing the CPU to step through a series of micro operations is called
a. execution
b. runtime
c. sequencing
d. pipelining
Q. The functions of execution and sequencing are performed by using
a. input signals
b. output signals
c. control signals
d. cpu
Q. What is the high speed memory between the main memory and the CPU called?
a. register memory
b. cache memory
c. storage memory
d. virtual memory
Q. LRU stands for
a. low rate usage
b. least rate usage
c. least recently used
d. low required usage
Q. When the data at a location in cache is different from the data located in the main memory, the cache is called
a. unique
b. inconsistent
c. variable
d. fault
Q. Which of the following is not a write policy to avoid Cache Coherence?
a. write through
b. write within
c. write back
d. buffered write
Q. Which of the following is an efficient method of cache updating?
a. snoopy writes
b. write through
c. write within
d. buffered write
Q. In mapping, the data can be mapped anywhere in the Cache Memory.
a. associative
b. direct
c. set associative
d. indirect
Q. The transfer between CPU and Cache is
a. block transfer
b. word transfer
c. set transfer
d. associative transfer
Q. Computer has a built-in system clock that emits millions of regularly spaced electric pulses per called clock cycles.
a. second
b. millisecond
c. microsecond
d. minute