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| Teaching Since: | May 2017 |
| Last Sign in: | 292 Weeks Ago, 6 Days Ago |
| Questions Answered: | 27237 |
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MCS,MBA(IT), Pursuing PHD
Devry University
Sep-2004 - Aug-2010
Assistant Financial Analyst
NatSteel Holdings Pte Ltd
Aug-2007 - Jul-2017
1: Assume that your system has one queue for jobs waiting for printing and another queue for those waiting for access to a disk. Which queue would you expect to have the faster response? Explain your resonating.
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2: Using SJN, calculate the start time and finish time for each of these seven jobs:
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|
Job |
Arrival Time |
CPU Cycle |
|
A |
0 |
2 |
|
B |
1 |
11 |
|
C |
2 |
4 |
|
D |
4 |
1 |
|
E |
5 |
9 |
|
F |
7 |
4 |
|
G |
8 |
2 |
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3: When using a personal computer, it can be easy to determine when a job is caught in an infant loop or system-wide freeze. The typical solution to this problem is for the user to manually intervene and terminate the offending job, or the worst case, all jobs. What mechanism would you implement in the Process Scheduler to automate the termination of a job that’s in an infinite loop? Take into account jobs that legitimately use large amounts of CPU time, such as a task that is calculation the first 300,000 prime numbers.
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