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Q.What is Replacement Policy in cache?
When a new block has to be fetched in cache the other block may have to be replaced to make room for new block. Replacement policy determines which block to replace in such a situation. Apparently it would be best to replace a block which is least probably needed again in near future.
Q. Example on hamming error correcting code? For illustration a 4-bit matching word can stand for 2 4 =16 values that range from 0 to 15 as: 0000, 0001, 0010, 0011, 0100, 01
Take a CPU that shows two parallel fetch-implement pipelines for superscalar processing. Determine the performance improvement over scalar pipeline processing and no-pipeline proce
Explain the techniques used for protection of user files. This is easier to protect against accidental than malicious misuse. Protection of user files implies that file owne
Reduced Instruction Set Computer (RISC): As we discussed before most of the modern CPUs are of the GPR (General Purpose Register) type. A few instances of such type of CPUs ar
Explain Elimination of common sub expression during code optimization An optimizing transformation is a regulation for rewriting a segment of a program to enhance its execution
Differentiate between intranet and internet Some comparisons between intranet and internet include: - INTERNET is INTERnational NETwork - An INTRANET is INTernal Restri
What are the different tones used in strowger telephony? Explain with the help of waveforms and the timings. Dial Tone: it is used to indicate that the exchange is ready to r
What are the risks by merchant's perspective in Electronic Payment Systems? Through merchant's perspective: • Copied or Forged payment instruments • Insufficient funds in
Q. What is SEGMENT Directive? Segment directive defines logical segment to which following instructions or data allocations statement belong. It also provides a segment name t
What are semaphores? Semaphore : A semaphore is a synchronization tool which gives a general-purpose solution to controlling access to critical sections. It s an abstract data
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