J12CSPIII-1-10

 UGC NET Computer Science(Paper-III) Mock Test June -2012  

   

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1.  Consider the following pseudo-code segment :
K:=0

for i₁:= l to n

for i₂:= 1 to i₁

...

for i_m:= 1 to i_m–1

K:= K+1
The value of K after the execution of this code shall beC(n + m – 1, m)
C(n – m + 1, m)
C(n + m – 1, n)
C(n – m + 1, n)

2.  In Delta Rule for error minimization
weights are adjusted w.r.to change in the output
weights are adjusted w.r.to difference between desired output and actual output
weights are adjusted w.r.to difference between input and output
none of the above

3.  The concept of pipelining is most effective in improving performance if the tasks being performed in different stages :
require different amount of time
require about the same amount of time
require different amount of time with time difference between any two tasks being same
require different amount with time difference between any two tasks being different

4.  What is Granularity ?
The size of database
The size of data item
The size of record
The size of file

5.  Suppose that a given application is run on a 64-processor machine and that 70 percent of the application can be parallelized. Then the expected performance improvement using Amdahl’s law is
4.22
3.22
3.32
3.52

6.  If two fuzzy sets A and B are given with membership functions
µ_A(x) = {0.2, 0.4, 0.8, 0.5, 0.1}
µ_B(x) = {0.1, 0.3, 0.6, 0.3, 0.2}
Then the value of µ(A∩B)' will be
{0.9, 0.7, 0.4, 0.7, 0.9}
{0.2, 0.4, 0.8, 0.5, 0.2}
{0.1, 0.3, 0.6, 0.3, 0.1}
{0.7, 0.3, 0.4, 0.2, 0.7}

7.  Match the following :
(i) OLAP (a) Regression
(ii) OLTP (b) Data Warehouse
(iii) Decision Tree (c) RDBMS
(iv) Neural Network (d) Classification
     (i) (ii) (iii) (iv)
(b) (c) (a) (d)
(b) (c) (d) (a)
(c) (b) (a) (d)
(c) (b) (d) (a)

8.  Which level of Abstraction describes what data are stored in the Database ?
Physical level
View level
Abstraction level
Logical level

9.  The problem that occurs when one transaction updates a database item and then the transaction fails for some reason is ________.
Temporary Select Problem
Temporary Modify Problem
Dirty Read Problem
None

10.  In an image compression system 16384 bits are used to represent 256 × 256 image with 256 gray levels. What is the compression ratio for this system ?
8:1
16:1
32:1
64:1

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This page is developed by our student:

Mr U Sangam Kumar Patro , 4th semester, ICT

Thank you Sangam  !!!