UGC NET COMPUTER SCIENCE SOLVED
MODEL PAPER FOR JULY 2016 EXAM
1. Every time
attribute A appears, it is matched with the same value of attribute B, but not
the same
value of attribute C. Therefore, it is true that:
(A) A → B
(B) A → C
(C) A → (B,C).
(D) (B,C) → A.
Ans.: A
2. In the relational model, relationships
between relations or tables are created by using:
(A) Composite keys.
(B) Determinants.
(C) Candidate keys.
(D) Foreign keys
Ans.:D
3. A tuple is a(n) :
(A) Column of a table.
(B) Two dimensional table.
(C) Row of a table
(D) Key of a table.
Ans.:C
4. Which of the following is not a restriction
for a table to be a relation?
(A) The cells of the table must contain a single value.
(B) All of the entries in any column must be of the same kind.
(C) The columns must be ordered
(D) No two rows in a table may be identical.
Ans.: C
5. For some relations, changing the data can
have undesirable consequences called:
(A) Referential integrity constraints.
(B) Modification anomalies
(C) Normal forms.
(D) Transitive dependencies.
Ans.:B
6. The mechanism of
understanding what customer wants, analyzing needs, assessing
feasibility
are provided by
(A)
Analyzing process
(B)
Requirement engineering
(C)
System modeling
(D)
Checking process
Ans.:B
7. Which
of the following is a formal reference point that measures system
characteristics
at a specific time?
(A)
Benchmark
(B)
Baseline
(C)
Functional
(D)
Control
Ans.:
B
8. Match
the following-
Column
I Column II
p)
Disparate data (i) Archive data
q) Non
volatile data (ii) Level of detail
r) Data
granularity (iii) Query and analysis
(iv)
Production data
(p) (q)
(r)
(A)
(i), (iv), (ii)
(B)
(iii), (ii), (iv)
(C)
(ii), (i), (iii)
(D)
(iv), (iii), (ii)
Ans.:
D
9. Prim’s
algorithm is a method available for finding out the minimum cost of a
spanning
tree. Its time complexity is given by:
(A)
O(n*n)
(B) O(n
logn)
(C)
O(n)
(D)
O(1)
Ans.:
A
10. Error
detection at the data link level is achieved by:-
(A) Bit
stuffing
(C)
Hamming codes
(D)
Equalization
Ans.:
B
11. ______
is the abstraction process of introducing new characters to an existing class
of
objects to create one or more new classes of objects.
(A)
Specialization
(B)
Generalization
(C)
Abstraction
(D)
Aggregation
Ans.:
A
12. Match
the following categories with respect to 8085 instructions:
Column
I Column II
p) Data
transfer instruction (i) CALL
q)
Arithmetic Instruction (ii) CMP
r)
Logical Instruction (iii) STA
s)
Branch Instruction (iv) DCR
(p) (q)
(r) (s)
(A)
(ii), (iii), (iv), (i)
(B)
(iii), (ii), (i), (iv)
(C)
(i), (iii), (ii), (iv)
Ans.:
D
13. Isolation
of the transactions is ensured by
(A)
Transaction management
(B)
Application programmer
(C)
Concurrency control
(D)
Recovery management
Ans.:
C
14. Which
of the following parser is more powerful and expensive?
(A)
Simple LR
(B)
Look ahead LR
(C)
Canonical LR
(D) None
of these
Ans.:
C
15. A
BCNF is
(A)
Loss less join and dependency preserving
(B)
Loss less join and not dependency preserving
(C) Not
loss less join and dependency preserving
(D)
None of these
Ans.:
B
16. A
self relocating program is one which
(A)
Cannot be made to execute in any area of storage other than the one designated
for it
at the time of its coding or translation.
(B)
Consists of a program and relevant information for its relocation.
(C) Can
itself perform the relocation of its address-sensitive portions
(D)
All of the above
Ans.:
C
17. Software
metrics cannot be applied in
(A)
Cost and size estimation techniques.
(B)
Controlling software development projects
(C)
Prediction of quality levels
(D)
None of these
Ans.:D
18. Which
of the following systems are relatively independent?
(A)
Loosely coupled systems
(B)
Uncoupled systems
(C)
Highly coupled systems
(D)
None of these
Ans.:A
19. __________ allow object motion characteristics
to be specified as part of the object
definitions
(A) Key
frame systems
(B)
Parameterized systems
(C)
Scripting systems
(D)
None of these
Ans.:
B
20. Which
of the following is not a graphic standard?
(A)
MHEG
(B)
PREMO
(C) OAD
(D)
Acrobat
Ans.:
C
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