Kerala PSC Previous Years Question Paper & Answer

Title : LR IN INFORMATION TECHNOLOGY POLYTECHNICS KERALA TECHNICAL EDUCATION
Question Code : A

Page:10


Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'LR IN INFORMATION TECHNOLOGY POLYTECHNICS KERALA TECHNICAL EDUCATION' And exam conducted in the year 2015. And Question paper code was '018/2015'. Medium of question paper was in Malayalam or English . Booklet Alphacode was 'A'. Answer keys are given at the bottom, but we suggest you to try answering the questions yourself and compare the key along wih to check your performance. Because we would like you to do and practice by yourself.

page: 10 out of 16
Excerpt of Question Code: 018/2015

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Consider the schema R = (S T U V) and the dependencies :

5+ 1,7 + 17,10 ~> # ०४ ->5

If R = (R1 and R2) be a decompesition such that Bl ‏د‎ R2 = @, then decomposition is
(A} Notin 2NF (0) In 2NF but not in 3NF
(ಲ) ‏و10‎ 311 but not in 2NF (0) In both ZNF and 3NF

Aflip flopisa:
(ക) Combinational circuit (B) Memory element
(0) Arithmetic element (D) Memory or arithmetic

Which of the following is TRUE?
(ಗ) Every relation in 3NT is also in BCNF

(B) A relation R is in 3NF if every non-prime attribute of R is fully functionally
dependent of every Key of R

(0) Every relation in BCNF is also in 3NF
(D) No relation can be in both BCNF and 3NF

Offset value of the Code segment :
(^) Base pointer (ए) Stack pointer
(C) Instruction peinter (D) None

A JEK flip-flop can be implemented using D flip-flop connected such that :
ல 0 - 20 + 9 B) D=JQ+KQ
(© ‏وع + چ7۔-ھھ‎ () ௦-7 - ௩0

In a software project, COCOMO (Cost Constructive Madal) is used to estimate :
(ಗ) Effort and Duration based on the Size of the software
(B) Size and Duration based on the Effort of the software
(0 Effort and Cost based on Duration of the software
(12) Size, Effort and Duration based on the Cost of the Software

Arithmetic shift left operation :
[ക Produces the same result as obtained with logical shift left operation
(18 Causes the sign bit to remain always unchanged
(() Needs additional hardware to preserve the sign bit
(D) Is not applicable for signed 2's complement representation

18/2015 12 A

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LR IN INFORMATION TECHNOLOGY POLYTECHNICS KERALA TECHNICAL EDUCATION : Video