First one is solution comes out to be
*485 + (995 * 140) + 485 + 140 + 305 + 430 = 141 .145 *micro secs, but this
is not a choice..
Best Regards
Ashish Goel
"Think positive and find fuel in failure"
+919985813081
+919966006652
On Wed, Jan 12, 2011 at 3:15 PM, snehal jain <learner....@gmail.com> wrote:
> A 4-stage pipeline has the stage delays as 150, 120, 160 and 140 ns
> (nano seconds)
> respectively. Registers that are used between the stages have a delay
> of 5 ns each. Assuming
> constant clocking rate, the total time taken to process 1000 data
> items on this pipeline will
> approximately be
> a. 120 us (micro seconds)
> b. 165 us
> c. 180 us
> d. 175 us
>
> Which of the following statements are true?
> I Shortest remaining time first scheduling may cause starvation
> II Preemptive scheduling may cause starvation
> III Round robin is better than first come first serve in terms of
> response time
> a) I only
> b) I and III only
> c) II and III only
> d) I, II and III
>
> Increasing the RAM of a computer typically improves performance
> because:
> a. Virtual memory increases
> b. Larger RAMs are faster
> c. Fewer segmentation faults occur
> d. Fewer page faults occur
>
> Suppose we want to synchronize two concurrent processes P and Q using
> binary
> semaphores S and T. The code for the processes P and Q is shown below.
> Process P:
> while (1) {
> W:
> print '0’;
> print '0';
> X:
> }
> Process Q:
> while (1) {
> Y:
> print '1'
> print '1'
> Z:
> }
> Synchronization statements can be inserted only at points W, X, Y and
> Z.
> V() increments the semaphore, whereas P() decrements it
> Which of the following will always lead to an output staring with
> '001100110011' ?
> a) P(S) at W, V(S) at X, P(T) at Y, V(T) at Z, S and T initially 1
> b) P(S) at W, V(T) at X, P(T) at Y, V(S) at Z, S initially 1, and T
> initially 0
> c) P(S) at W, V(T) at X, P(T) at Y, V(S) at Z, S and T initially 1
> d) P(S) at W, V(S) at X, p(T) at Y, V(T) at Z, S initially 1, and T
> initially 0
>
>
> can any1 suggest some source for such kind of questions????????
>
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