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(#M40154228) AMCAT QUESTION computer science Keep an EYE

Which of the following techniques is used to avoid the migration of processes from one processor to another because of high cost of invalidating and repopulating caches?
1) Load balancing
2) Push migration
3) Pull migration
4) Processor affinity

Asked In AMCAT dhritiman (10 years ago)

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(#M40154227) AMCAT QUESTION computer science Keep an EYE

Choosethe conect option.
Sunil is working on a database management system. He wants to program transactions such that a transaction is completed only if all the database operations are completed and commited, otheniwise the transaction is aborted and rolled back. Which of the following database characterestics is he trying to implement?
1) Atomicity
2) Consistency
3) lsolation
4) Durability

Asked In AMCAT dhritiman (10 years ago)

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(#M40154226) AMCAT QUESTION computer science Keep an EYE

In a -----------signals are sent on multiple frequencies: allowing multiple signals to be sent simultaneously while in -----the entire bandwidth of the cable is consumed by a single signal.
1) baseband transmission: broadband transmission
2)broadband transmission: baseband transmission:
3) asynchronous transmission: synchronous transmission
4) synchronous transmission: asynchronous transmission

Asked In AMCAT dhritiman (10 years ago)

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(#M40154225) AMCAT QUESTION computer science Keep an EYE

Which of the following statements is incorrect?
1)Bridge Is a combination of hardware and software to link two similar networks
2)Gateway is a combination of hardware and software to link two different types of networks
3)Bridges are faster than routers
4)Gateways operate at Network and Transport layer of the OSI model

Asked In AMCAT dhritiman (10 years ago)

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(#M40154224) AMCAT QUESTION computer science Keep an EYE

Choose the correct option.
The time required for the four functionai units which operate in each of the four cycles are :
9 ns, 5 ns,6 ns, 5 ns
Assuming that pipelining adds 1 ns of overhead, find the speed up for this pipeline.
1) 2.5
2) 3.4
3)4.15
4) 5.25

Asked In AMCAT dhritiman (10 years ago)

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(#M40154223) AMCAT QUESTION computer science Keep an EYE

Choose the correct option.
Which of the following statements is true’?
1) A software program stored in the ROM that can not be changed is called linker
2) Non-maskable interrupt can be temporarily ignored by the counter
3)Main frame computer has single bus structure
4)If the program has many operands: property of locality of references may fail

Asked In AMCAT dhritiman (10 years ago)

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(#M40154222) AMCAT QUESTION computer science Keep an EYE

A computer’s memoy is composed of 4K words of 16 bits each and one byte equals 8 bits How many bytes does this memory contain?
1) 2K
2)4K
3)8K
4)16K

Asked In AMCAT dhritiman (10 years ago)

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(#M40154221) AMCAT QUESTION computer science Keep an EYE

If the number of pages in a 32-bit machine is 16 KB, then what is the size of the page table?
1) 8 KB
2)16KB
3)12KB
4) 10 KB

Asked In AMCAT dhritiman (10 years ago)

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(#M40154220) AMCAT QUESTION computer science Keep an EYE

Which of the following is are true?
1 Bankers algorithm is used for the avoidance of deadlock
2 Resource-allocation graph is used for a system with multiple Instances of each resource type
1)Only 1
2)Only 2
3)Both l and 2

4)Neither 1 nor 2

Asked In AMCAT dhritiman (10 years ago)

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(#M40154219) AMCAT QUESTION computer science Keep an EYE

Assume that there is a thread T which had already locked a mutex and the mutex is non recursive which means it can be locked more than once. If thread T tries to lock the mutex again: then what will happen in this situation’?
1) Mutex will be locked once again and count will be incremented by 1
2)Mutex will be locked once again but the count will remain same
3)System will enter into deadlock
4)Lock will not be given but the system will remain in same state

Asked In AMCAT dhritiman (10 years ago)

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