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(#M40154581) AMCAT QUESTION Computer Science and Computer Programming Keep an EYE

Which of the following statements is/are true for Tue Relational Calculus(TRC)?
I) TRC is a declarative language
2) TRC makes use of predicate calculus
3)In TRC, x=>y means y is true if and only if x is true
Options are:
1) Only 1
2) Both2and3
3) Both land2
4) Both land3

Asked In AMCAT dhritiman (9 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

Asked In AMCAT dhritiman (10 years ago)

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(#M40154241) AMCAT QUESTION Computer science Keep an EYE

How many different address are required by the memory that contains 20 k words-
Options-
1)20,000
2)20,480
3)20,000
4)32,000

Asked In AMCAT dhritiman (10 years ago)

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(#M40154544) AMCAT QUESTION Computer Science and Computer Programming Keep an EYE

Which of the following conditions can lead to a deadlock?
I Mutual exclusion
2 Preemption
3) Circular wait
Options are:
1) Only 1
2)Both l and 2
3)Both l and3
4) Both 2 and 3
5)All-1,2 and 3

Asked In AMCAT dhritiman (9 years ago)

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(#M40154515) AMCAT QUESTION Computer Science and Computer Programming Keep an EYE

Please view the schedule table in dbms AS IT REQUIRED to answer the question - https://drive.google.com/file/d/0B-qhy8PbmOfha1ZBZ1ZiODVXdTg/view?usp=sharing

After viewing the image ,please answer

There are two schedules - Schedule I and Schedule 2 as shown in the figure. Consider a system with two data items, A and B. that are both read and written by two transachons. TO and T1. These transactions are executed in chronological order from top to bottom. The instructions of TO are in the left column and instructions of Tq are in the right column.
Which of the following options is true about Schedule q?
1)It is a serial schedule
2) It is a non serial schedule
3)It is a conflicting schedule
4)It is a nonconflict serializable schedule

Asked In AMCAT dhritiman (9 years ago)

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(#M40154518) AMCAT QUESTION Computer Science and Computer Programming Keep an EYE

What is the minimum number of the bits required to store -256 to +256 in the computer?
1)7
2)8
3)9
4)10

Asked In AMCAT dhritiman (9 years ago)

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(#M40154210) AMCAT QUESTION computer science Keep an EYE

Which of the following statements is incorrect?
1)8421 code is a weighted code
2) Excess-3 code is a unweighted code
3)BCD code is also called 8421 code
4)In a grey code sequence: two grey codes always have only 1 bit in common

Asked In AMCAT dhritiman (10 years ago)

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(#M40154830) TCS QUESTION Apti Keep an EYE

The value of the expression
1%2%3%5%7%11%13
Can be altered by including parenthesis.If we are allowed to place as many parenthesis as we want,how many distinct values can be obtained from this expression?
Clue:which of the numbers can appear in the numerator and which are in the denominator of the fraction obtained after inserting parenthesis?

Asked In TCS dhritiman (9 years ago)

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(#M40154548) AMCAT QUESTION Computer Science and Computer Programming Keep an EYE

There are 2 groups – group a and group b. Match the following
Group A

A. Two-level thread mod
B. Thread cancellation
C. Thread library
D. Light weight Process

GroupB
1. Pthreads
2. Thread
3. Tru64 UNIX
4. Deferred

Match the given thread related termjs in Group A with their examples in Group B.
1)A-4,B-3,C-1,D-2
2)A-2,B-4,C-1, D-3
3) A-3, B-4, C-1. D-2
4) A-1, B-4, C-3, D-2

Asked In AMCAT dhritiman (9 years ago)

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(#M40154281) AMCAT QUESTION Computer science Keep an EYE

Consider the following reference string -
1, 2, 3.4,2, 1,2. 3, 5, 6, 2, 1, 7, 6, 3,2

A page fault will occur when a program accesses a page that is mapped in the virtual address space, but not loaded in physical memory .All the frames are initially empty, so your first unique page will cost one fault each.
What will be the number of the page faults, if the FIFO replacement policy is used with 3 page frames?
1)11
2)12
3)15
4)17

Asked In AMCAT dhritiman (10 years ago)

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