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Q. Define Wait protocol?
The wait protocol is used for resolving conflicts that arise due to some multiprocessors requiring same resource. There are 2 kinds of wait protocols: sleep-wait and busy-wait. In busy-wait protocol process stays in process context register that continually attempts for processor availability. In sleep-wait protocol wait protocol process is removed from processor and is kept in wait queue. The hardware complexity of this protocol is greater than busy-wait in multiprocessor system. If locks are used for synchronization subsequently busy-wait is used more than sleep-wait.
The logic circuit given below, converts a binary code y 1 y 2 y 3 into Ans. Gray code is X1 = Y1, X2 = Y1 XOR Y2 , X3 = Y1 XOR Y2 XOR Y3 For
Q. Perform division in binary showing contents of accumulator, B register and Y register during each step. (Accumulator, B, Y are 5-bit registers) 13 / 2
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The total number of class of IP address are? The total number of class of IP addresses are 5.
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