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Answer Key and Solved Questions Paper-3 UGC-NET Computer Science December 2015

31.In CRC based design, a CRC Team consists of :
(a) one or two users representatives
(b) several programmers
(c) project co-ordinators
(d) one or two system analysts
Codes :
A.(a) and (c)
B.(a), (b), (c) and (d)
C.(a), (c) and (d)
D.(a), (b) and (d)
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Explanation
32.The end points of a given line are (0,0) and (6,18). Compute each value of y as x steps from 0 to 3, by using equation of straight line:
A.For x=0, y=0; x=1,y=3; x=2,y=6; x=3, y=9
B.For x=0, y=1; x=1,y=3; x=2,y=4; x=3, y=9
C.For x=0, y=2; x=1,y=3; x=2,y=6; x=3, y=9
D.For x=0, y=0; x=1,y=3; x=2,y=4; x=3, y=6
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33.Which of the following graphic primitives are considered as the basic building blocks of computer graphics ?
(a) Points
(b) Lines
(c) Polylines
(d) Polygons
Codes :
A.(a) only
B.(a) and (b)
C.(a), (b) and (c)
D.(a), (b), (c) and (d)
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Explanation
34.Javascript and Java has similar name because .................... is/are true.
(a) Javascripts syntax is loosely based on Java’s syntax
(b) Javascript is stripped down version of Java
(c) Java and Javascript are originated from Island of Java
Codes :
A.(a) only
B.(a), (b) and (c)
C.(a) and (b)
D.(a) and (c)
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Explanation
35.Which of the following statements are true with reference to the way of describing XML data ?
(a) XML uses DTD to describe the data
(b) XML uses XSL to describe the data
(c) XML uses a description node to describe the data
Codes :
A.(a) only
B.(b) only
C.(a) and (b)
D.(a) and (c)
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Explanation
36. Which of the following is/are correct with reference to Abstract class and interface ?
(a) A class can inherit only one Abstract class but may inherit several interfaces.
(b) An Abstract class can provide complete and default code but an interface has no code.
Codes :
A.(a) is true
B.(b) is true
C.Both (a) and (b) are true
D.Neither (a) nor (b) is true
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Explanation
37. Match the following with respect to various memory management algorithms :
List - I List - II
(a) Demand paging (i) degree of multiprogramming
(b) Segmentation (ii) working set
(c) Dynamic partitions (iii) supports user view of memory
(d) Fixed partitions (iv) compaction
Codes :
(a) (b) (c) (d)
A.(iii) (iv) (ii) (i)
B.(ii) (iii) (i) (iv)
C.(iv) (iii) (ii) (i)
D.(ii) (iii) (iv) (i)
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38.Function of memory management unit is :
A.Address translation
B.Memory allocation
C.Cache management
D.All of the above
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39. Consider a system with twelve magnetic tape drives and three processes P1, P2 and P3. Process P1 requires maximum of 10 tape drives, Process P2 may need as many as four tape drives and process P3 may need upto nine tape drives. Suppose at time t1, process P1 is holding five tape drives, P2 is holding two tape drives and Process P3 is holding three tape drives. At time t1 system is in
A.Safe state
B.unsafe state
C.Deadlocked State
D.Starvation State
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Explanation
40. In Unix operating system, special files are used to :
A.buffer data received in its input from where a process reads
B.provide a mechanism to map physical device to file names
C.store list of file names plus pointers associated with i-nodes
D.store information entered by a user application program or utility program
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Author Does Not claim of any answer these answers are as per expert opinion


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