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(#M40154208) AMCAT QUESTION computer science Keep an EYE

choose the corect option.
Which of the following schedules can be categorized as strict schedule?
1)T1 : R(X), T2:R(X), T2:W(X), T1:W(X), T2:Commit, Ti :Commit
2)T1:R(X), T2:R(X), T2:W(X), T1:W(X). T1:Commit. T2:Commit
3) T1:R(X), T2:R(X), T1:W(X), T1:Commit, T2:W(X), T2:Commit
4)T1:R(X), T2:R(X), Ti :W(X), T2:W(X),T2: Commit

Asked In AMCAT dhritiman (10 years ago)

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(#M40154207) AMCAT QUESTION computer science Keep an EYE

Choose the corect option.
Assume that a pipelining is implemented and the data given are:
B= 3;Pj= 04;Pt=06
where
b = jump penalty(loss of cycles due to jump)
Pj = probability that the instruction is a jump
Pt =probability that the jump is taken
Calculate the average instruction time
1)0.712
2)3.14
3)0.112
4)0.6

Asked In AMCAT dhritiman (10 years ago)

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(#M40154206) AMCAT QUESTION computer science Keep an EYE

A system uses FIFO page replacement algorithm It has 3 pages frames with no pages loaded to begin with The system first accesses 50 distinct pages in some order and then access the same 50 pages but now in reverse order. How many page faults will occur?
1)50
2)97
3)103
4)100

Asked In AMCAT dhritiman (10 years ago)

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(#M40154205) AMCAT QUESTION computer science Keep an EYE

Places(location,name.type)
Choose the correct option

Which of the following queries can be used to retfleve name and type from table “Places”(given in the passage), where column ‘location” has value Delhi and output should be in alphabetically increasing order of column “name’?
1)SELECT name. type FROM Places WHERE locationDelhi SORT BY 1:
2)SELECT name. type FROM Places WHERE location’Delhi’ SORT BY name,
3) SELECT name. type FROM Places WHERE location=’Delhi’ ORDER BY 1:
4) SELECT name, type FROM Places WHERE location=’Delhi’ ORDER BY 2,
5)SELECT name. type FROM Places WHERE location’Delhi SORT BY 2:

Asked In AMCAT dhritiman (10 years ago)

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(#M40154204) AMCAT QUESTION computer science Keep an EYE

Choose the correct answer
Which of the following constructs can not be used for the purpose of Process Synchronization?
1)Semaphores
2)Monitors
3)Mutex Locks
4) None of this

Asked In AMCAT dhritiman (10 years ago)

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(#M40154203) AMCAT QUESTION computer science Keep an EYE

Choose the correct answer-
Assuming that the given variables have their usual meanings which of the following options refer to an empty Linked List?
1) HEAD-> NEXT = NULL
2)HEAD = NULL
3)HEAD>P REV = NULL
4) HEAD->NEXT->NEXT = NULL
5)HEAD->NEXT = HEAD->PREV

Asked In AMCAT dhritiman (10 years ago)

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(#M40154202) AMCAT QUESTION computer science Keep an EYE

Consider the following reference string-
7,0,1,3,2,0,3,4,2,0,3,2, 1,2,1,7,1,2
Calculate the number of page faults encountered when the FIFO page replacement is used for the first half of the reference string and the LRU page replacement policy is used for the last half using 4 page frames

1)7
2)8
3)9
4)10

Asked In AMCAT dhritiman (10 years ago)

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(#M40154201) AMCAT QUESTION computer science Keep an EYE

In tree topology: the central hub is the--------------------- and the secondary hub is the ----------------
1)active hub, passive hub
2) active hub,active hub
3) passive hub, passive hub
4)passive hub, active hub

Asked In AMCAT dhritiman (10 years ago)

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(#M40154200) AMCAT QUESTION Computer science Keep an EYE

which of the following statements is incorrect with respect to data processing in DBMS

Options-
1)decentralized data processing leads to data redundancy
2)centralized data processing is the fastest way of data processing
3)decentralized data processing leads to data inconsistency
4)distributed data processing work on client/server architecture

Asked In AMCAT dhritiman (10 years ago)

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(#M40154199) AMCAT QUESTION Computer science Keep an EYE

Which of the following are true about risc-
1)It stands for reduced set computer
2)it has relatively few addressing modes compared to cisc
3)it has memory address limited to load and store instruction
4)it has the stability to execute more than one instruction per clock cycle

options which are correct statement-
1)BOTH 1 AND 2
2)Both 1 and 3
3)1,2,3
4)1,2,4

Asked In AMCAT dhritiman (10 years ago)

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