Operating System Set 5

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Bachelor of Science in Computer Science FY (BSc CS),

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This set of Operating System (OS) Multiple Choice Questions & Answers (MCQs) focuses on Operating System Set 5

Q1 | Control Unit acts as the central nervous system of the computer.
Q2 | What does MBR stand for?
Q3 | In the instruction ADD A, B, the answer gets stored in                        
Q4 | What does PC stand for?
Q5 | Which of the following holds the last instruction fetched?
Q6 | The portion of the processor which contains the hardware required to fetch the operations is                
Q7 | Causing the CPU to step through a series of micro operations is called                    
Q8 | The functions of execution and sequencing are performed by using                              
Q9 | What does D in the D-flip flop stand for?
Q10 | What is the high speed memory between the main memory and the CPU called?
Q11 | Cache Memory is implemented using the DRAM chips.
Q12 | Whenever the data is found in the cache memory it is called as                    
Q13 | LRU stands for                        
Q14 | When the data at a location in cache is different from the data located in the main memory, the cache is called                            
Q15 | Which of the following is not a write policy to avoid Cache Coherence?
Q16 | Which of the following is an efficient method of cache updating?
Q17 | In                          mapping, the data can be mapped anywhere in the Cache Memory.
Q18 | The number of sign bits in a 32-bit IEEE format is          
Q19 | The transfer between CPU and Cache is
Q20 | Computer has a built-in system clock that emits millions of regularly spaced electric pulses per            called clock cycles.
Q21 | It takes one clock cycle to perform a basic operation.
Q22 | The operation that does not involves clock cycles is                    
Q23 | The number of clock cycles per second is referred as                  
Q24 | CISC stands for                          
Q25 | Which of the following processor has a fixed length of instructions?
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