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What is write-back or copy-back protocol?
For a write operation using this protocol during write-hit: the method is to update only the cache and to mark it as updated with an associated flag bit, often called the modified or dirty bit. The main memory location of the word is updated later, when the block having this marked word is to be removed from the cache to make room for a latest block.
For a write-miss: the block having the addressed word is first brought into the cache, and then the deserved word in the cache is overwritten with the latest information.
Which scheduler selects processes from secondary storage device? Ans. Medium term scheduler selects processes from secondary storage device.
What is computer virus? A computer virus is a computer program that is designed to spread itself between computers. Computer virus are inactive when standing a
Define Frequency Division - Application of Flip Flop? When the pulse waveform is applied to the clock input of a J-K flip-flop that is connected to toggle, the Q output is a s
What are the different layers of TCP/IP protocol stack? Layers in the TCP/IP protocol architecture are:- o Application Layer o Host-to-Host Transport Layer, o Net
haw to convert context free grammar to regular grammar
write about operator precedence in java?
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COLGROUP defines a group of columns in table and allows you to set properties of those columns. goes immediately after tag and before an
How would you kill a process? The "kill" command takes the PID as one argument; this signifies which process to terminate. The PID of a process can be got using "ps" command
Define about the Objects The object notation is the same in basic form as that for a class. There are three differences among the notations, these are given below: With
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