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(#M40154262) AMCAT QUESTION Computer science Keep an EYE

A job scheduling algorithm processes a Process P and it takes total time T from submission to the completion of that process. What is this T known as?

1)Turnaround time
2) Waiting time
3) Response time
4) Total Time

Asked In AMCAT dhritiman (10 years ago)

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(#M40154261) AMCAT QUESTION Computer science Keep an EYE

Any program residing in the memory contains a set of instructions thet need to be executed by the computer in a sequential manner This cycle for every instruction is known as the instruction cycle The cycle consists of the following steps which may or may not be the proper sequence of the execution.

1.Fetch the operand from the memory
2.Execution
3.Fetch instruction
4.Decode the instruction
5.Result

In which of the following steps, is the Program Counter(PC) loaded with the address of the next instruction?
1)Execution
2) Fetch instruction
3) Decode the instruction
4) Result

Asked In AMCAT dhritiman (10 years ago)

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(#M40154260) AMCAT QUESTION Computer science Keep an EYE

The head of a moving head disk with 100 tracks numbered 0 to 99 is currently sewing a request at track 50. If the queue of request kept in FCFS ORDER IS 10,60, 70, 40, 80. What will be the total head movements for these requests ?
1)150
2) 160
3) 170
4) 180

Asked In AMCAT dhritiman (10 years ago)

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(#M40154259) AMCAT QUESTION Computer science Keep an EYE

Choose the correct option-
In which ofthe following directory systems, there is a concept of user file directory(UFD) and master file directory(MFD)'?
1)Single level directory
2) Two level directory
3) Tree structured directory
4) Acyclic graph directory

Asked In AMCAT dhritiman (10 years ago)

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(#M40154258) AMCAT QUESTION Computer science Keep an EYE

Consider the following reference string -
0, 1,3, 2, 0, 2,4, 0, 3,4, 2, 0, 3, 2, 1,2, 1, 7, 1,2
Calculate the number of page faults encountered when the LRU page replacement is used for the first half of the reference string with 3 page frames and 4 page frames for the last half.
1)6
2)8
3)9
4)10

Asked In AMCAT dhritiman (10 years ago)

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(#M40154257) AMCAT QUESTION Computer science Keep an EYE

Which of the following charts is used to display the particular schedule of the processes for a scheduling technique?
1) Barchart
2) Pert chart
3) Pie chart
4)Gantt chart

Asked In AMCAT dhritiman (10 years ago)

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(#M40154256) AMCAT QUESTION Computer science Keep an EYE

Suppose that a disk drive has 100 cylinders, numbered 0 to 99. The drive is currently sewing a request at cylinder 50 and the disk queue of pending requests is: 35, 55,40, 75, 60, 90, 30. Starting from the current head position, what is the total distance (in cylinders) that the disk arm moves to satisfy all the pending requests for C-SCAN disk scheduling algorithm?
1) 118
2) 140
3) 168
4) 188

Asked In AMCAT dhritiman (10 years ago)

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(#M40154255) AMCAT QUESTION Computer science Keep an EYE

Choose the correct option.
Which of the following statements is/are true?
1. Switches can be considered as multiport bridges.
2. Routers operate at the OSI network layer.
3. Routing Protocols and Routable Protocols are the same.
4. Dynamic routers are more secure than Static routers.
1)Only2
2) Both 1and2
3) 1,3and4
4) 1,2 and 4

Asked In AMCAT dhritiman (10 years ago)

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(#M40154254) AMCAT QUESTION Computer science Keep an EYE

Shalini is given a task to find out the normal form of a table named "employee". By looking at the table, she observed that table is in primary key. What is the highest normal form of the given table?
1)1NF
2) 2NF
3) 3NF
4) Data lnsuffecient

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(#M40154253) AMCAT QUESTION Computer science Keep an EYE

Which of the following statements is/are true about the Resource-allocation graph?
1. lf the graph contains no cycles, then no process in the system is deadlocked.
2. lf the graph contains a cycle, then a deadlock may exist.
3. lf each resource type has exactly one instance, then a cycle implies that there is not a deadlock.
4. lf each resource type Which has several instances, then a cycle necessarily implies that a deadlock has occurred.
Options are:-
1) Only 1
2) Both 1 and 2
3) Both 2 and 3
4) Both 1 and 3
5)Only 4

Asked In AMCAT dhritiman (10 years ago)

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