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( 21 ) With _______, a requested page and several subsequent pages are read and cached.
- 1) write ahead
- 2) read ahead
- 3) free-behind
- 4) add-front
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Show Answer Report Discussion in forumAnswer : 2) read ahead
Solution : with read ahead, a requested page and several subsequent pages are read and cached.
discussion
Answer : 2) read ahead
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( 22 ) Which amongst the following is a valid page replacement policy?
- 1) RU policy (Recurrently used)
- 2) LRU policy (Least Recently Used)
- 3) both 1 and 2
- 4) None of these
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Show Answer Report Discussion in forumAnswer : 2) LRU policy (Least Recently Used)
Solution : LRU is page replacement policy.
discussion
Answer : 2) LRU policy (Least Recently Used)
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( 23 ) What is the duration of a time quantum in Round-Robin Scheduling?
- 1) 10-100 millisec
- 2) 10-100 nanosec
- 3) 100-1000 millisec
- 4) 100-1000 nanosec
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Show Answer Report Discussion in forumAnswer : 1) 10-100 millisec
Solution : The duration of a time quantum in Round-Robin Scheduling is 10-100 millisec.
discussion
Answer : 1) 10-100 millisec
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( 24 ) Anonymous access allows a user to transfer files :
- 1) without having an account on the remote system
- 2) only if he accesses the system with a guest account
- 3) only if he has an account on the remote system
- 4) None of these
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Show Answer Report Discussion in forumAnswer : 1) without having an account on the remote system
Solution : The world wide web uses anonymous file exchange almost exclusively.
discussion
Answer : 1) without having an account on the remote system
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( 25 ) In process scheduling,___________determines which ready process will be executed next by processor.
- 1) long term scheduling
- 2) medium term scheduling
- 3) short term scheduling
- 4) none of the above
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Show Answer Report Discussion in forumAnswer : 3) short term scheduling
Solution : In process scheduling, short term scheduling determines which ready process will be executed next by processor.
discussion
Answer : 3) short term scheduling
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( 26 ) Programs tend to make memory accesses that are in proximity of previous access this is called
- 1) spatial locality
- 2) temporal locality
- 3) reference locality
- 4) access locality
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Show Answer Report Discussion in forumAnswer : 1) spatial locality
Solution : Programs tend to make memory accesses that are in proximity of previous access this is called spatial locality.
discussion
Answer : 1) spatial locality
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( 27 ) Applications like Banking and reservations require which type of OS?
- 1) Real Time
- 2) Hard Real Time
- 3) Soft Real Time
- 4) None of the above
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Show Answer Report Discussion in forumAnswer : 3) Soft Real Time
Solution : Soft Real Time os is require in Banking and reservations.
discussion
Answer : 3) Soft Real Time
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( 28 ) With____________A page is written out to secondary memory only when it has been selected for replacement.
- 1) pre-cleaning
- 2) demand cleaning
- 3) required cleaning
- 4) fast cleaning
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Show Answer Report Discussion in forumAnswer : 2) demand cleaning
Solution : With demand cleaning, a page is written out to secondary memory only when it has been selected for replacement.
discussion
Answer : 2) demand cleaning
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( 29 ) The NFS servers :
- 1) are stateless
- 2) save the current state of the request
- 3) maybe stateless
- 4) None of these
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Show Answer Report Discussion in forumAnswer : 1) are stateless
Solution : The NFS servers are stateless.
discussion
Answer : 1) are stateless
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( 30 ) The open file table has a/an _______ associated with each file.
- 1) file content
- 2) file permission
- 3) open count
- 4) close count
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Show Answer Report Discussion in forumAnswer : 3) open count
Solution : The open file table has a/an open count associated with each file.
discussion
Answer : 3) open count
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