Wednesday 9 January 2013

UGC NET DEC 2012 PAPER-III



1. Eco system is a Frame work for

(A) Building a Computer System

(B) Building Internet Market

(C) Building Offline Market

(D) Building Market

2.The efficiency (E) and speed up(sp) for multiprocessor with p processors satisifies:

(A) E<=p and sp<=p 

(B) E<=1 and sp<=p

(C) E<=p and sp<=1

(D) E<=1 and sp<=1

See: http://www.cse.uiuc.edu/courses/cs554/notes/04_performance.pdf

 

3. Match the following:

               List-1                      List -II

a.  Critical Region          1. Hoares Monitor   

b. Wait/Signal                 2. Mutual Exclusion

c. Working Set                3. Principal of Locality

d. Dead Lock                  4. Circular Wait 

          a    b    c    d

(A)    2     1    3    4

(B)    1     2    4    3

(C)    2     3    1   4

(D)    1     3    2   4

 

4. The technique of temporarily  delaying outgoing acknowledgement so that they can be hooked onto the next outgoing data frame is known as

(A) Bit stuffing

(B) Piggy backing

(C) Pipe-lining

(D) Broadcasting


5. __________ is process of extracting previously non known valid and actionable information from large data to make crucial business and strategic decisions.
(A) Data Management
(B) Data base
(C) Data Mining
(D) Meta Data

6. The aspect ratio of an image is defined as

(A) The ratio of width to its height measured in unit length

(B) The ratio of height to width measured in number of pixels.

(C) The ratio of depth to width measured in unit length

(D) The ratio of width to depth measured in number of pixels. 

7. Which combination of the following features will suffice to characterize an OS as a multi-programmed OS? 

(a) More than one program may be loaded into main memory at the same time for execution. 

(b) If a program waits for certain events such as I/O, another program is immediately scheduled for execution. 

(c) If the execution of a program terminates, another program is immediately scheduled for execution.

(A) (a) only
(b) (a) and (b) only
(c) (a) and (c) only
(d) (a),(b) and (c) only

8. Using RSA algorithm, what is the value of cipher text C, if the plain text M=5 and p=3, q=11 & d=7?

(A) 33

(B) 5

(C) 25

(D) 26

n = (p x q) = (3 x 11) = 33


f(n) = (p – 1)(q – 1) = (3 – 1)(11 – 1) = (2)(10) = 20

e must be relatively prime to f(n);

Factors of 20 = 1, 2, 4, 5, 10, 20

Factors suitable for e = 3, 4, 5, 6, 7, ….

Try 3.  Factors of 3 = 1, 3

Selecting 3 meets requirement to be relatively prime to f(n).

We also know d = e-1 mod f(n); that is ed = 1 mod 20

We also can find 1 mod 20 = 21, 41, 61, etc.

Testing ed = 21, then d = 21/3 = 7

Public Key is [3,33]

Private key is [7,33]

Encrypting:

C = me mod n = 53 mod 33 = 125 mod 33 = 125/33 = Q of 3, R of 26

So C = 26

 

9. You are given an OR problem and a XOR problem to solve. Then, which one of the following statements is true?

(A) Both OR and XOR problems can be solved using single layer perception.

(B) OR problem can be solved using single layer perception and XOR problems can be solved using self organizing maps.

(C) OR problem can be solved using radial basis function and XORcan be solved using single layer perception. 

(D) OR problem can be solved using single layer perception and XOR problems can be solved using radial basis function.


10. Match the following:  

           List-1                      List -II

a.  Application Layer     1. TCP  

b. Trasnport Layer        2. HDLC

c. Network Layer           3. HTTP

d. Data Link Layer        4. BGP

         a    b    c    d

(A)    2     1    4   3

(B)    3     4    1   2

(C)    3     1    4   2

(D)    2     4    1   3


11.The time complexities of some standard graph algorithm are given. Match each algorithm with its time complexity? (n and m are no. of nodes and edges respectively)

a. Bellman Ford Algorithm        1. O(m log n)  

b. Kruskal's Algorithm               2. O(n^3)

c. Floyds Warshall Algorithm    3. O(mn)

d. Topological Sorting                 4. O(m+n)

Ans:A

 

12.    Let V1 = 2I - J + K and V2 = I + J - K, then the angle between V1 & V2 and a vector perpendicular to both V1 & V2 shall be
(A)    90°and(-2I + J-3K)
(B)    60°and(2I + J + 3K)
(C)    90°and(2I + J-3K)
(D)    90°and(-2I-J + 3K)

Ans:

 

13.    Consider a fuzzy set A defined on the interval X = [0, 10] of integers by the membership Junction
          µA(x) = x / x + 2   Then the α cut corresponding to α = 0.5 will be
(A)    {0,1,2,3,4,5,6,7,8,9,10}
(B)    {1,2,3,4,5,6,7,8,9,10}
(C)    {2,3,4,5,6,7,8,9,10}
(D)    {  }

Alpha cut is the set with membership value equal or greater than the alpha cut.

 

 14.    Let T(n) be the function defined by T(n) = 1 and T(n) = 2T (n/2) + n, which of the following is TRUE ?      .
(A)    T(n) = O(n)
(B)    T(n) = O(log2n)
(C)    T(n) = O(n)
(D)    T(n) = O(n2)

15.     In classful addressing, an IP address 123.23.156.4 belongs to______class format.
(A)    A
(B)    B
(C)    C
(D)    D

16.    The Mandelbrot set used for the construction of beautiful images is based on the following transformation :   

    x
n+1
= x2
n
+ Z Here,  
(A)    Both x & z are real numbers.
(B)    Both x & z are complex numbers.
(C)    x is real & z is complex.
(D)    x is complex & z is real.


17.    Which of the following permutations can be obtained in the output using a stack of size 3 elements assuming that input, sequence is 1,2, 3,4, 5 ?
(A)    3,2,1,5,4
(B)    5,4,3,2,1
(C)    3,4,5,2,1
(D)    3,4,5,1,2

 

18.     In a Linear Programming Problem, suppose there are 3 basic variables and 2 non-basic variables, then the possible number of basic solutions are
(A)    6
(B)    8
(C)    10
(D)    12

 

19.    Identify the following activation function :
                       Φ(V) = Z + 1 / (1 + exp(-X * V + Y))
        Z, X, Y are parameters
(A)    Step function
(B)    Ramp function
(C)    Sigmoid function
(D)    Gaussian function


20. The no. of ways to distribute n distinguishable objects into k distinguishable boxes, so that ni objects
are placed into box i, i = 1, 2, .... k equals which of the following ?
(A)  n! /  n1!+ n2! + ..... + nk!
(B)  n1!+ n2! + ..... + nk! /  n1! n2! n3!  .....  nk!
(C)  n! / n1! n2! n3!  .....  nk!
(D)  n1! n2! ....nk! / n1! - n2! - n3!  ..... - nk!


  21.    How many solutions do the following equation have
         x1 + x2 + x3 = 11  where x1 ≥ 1, x2 ≥ 2, x3 ≥ 3
(A)    C(7,11)
(B)    C(11,3)                       
(C)    C(14, 11)
(D)    C(7,5)

 

22.    Which provides an interface to the TCP/IP suit protocols in Windows95 and Windows NT ?
(A)    FTP Active-X Control
(B)    TCP/IP Active-X Control
(C)    Calinsock Active-X Control
(D)    HTML Active-X Control

23. What are the final values of Q1 and Q0 after 4 clock cycles, if initial values are 00 in the sequential circuit shown below :

(A)    11               
(B)    10                  
(Q     01                  
(D)    00      

24.    If dual has an unbounded solution, then its corresponding primal has
(A)    no feasible solution
(B)    unbounded solution
(C)    feasible solution
(D)    none of these

25.    The number of distinct bracelets of five beads made up of red, blue, and green beads (two bracelets are indistinguishable if the rotation of one yield another) is,
(A)   243
(B)   81
(C)   51
(D)   47


26.    Which are the classifications of data used in Mobile Applications ?
(A)    Private data, User data, Shared data.
(B)    Public data, User data, Virtual data.
(C)    Private data, Public data, Shared data.
(D)   Public data, Virtual data, User data.

 

27.   In an enhancement of a CPU design, the speed of a floating point unit has been increased by 20% and the speed of a fixed point unit has been increased by 10%. What is the overall speed achieved if the ratio of the number of floating point operations to the number of fixed point operations is 2 : 3 and the floating point operation used to take twice the time taken by the fixed point operation in original design ?
(A)     1.62                                  
(B)     1.55
(C)     1.85  
(D)     1.285

From my opinion, it is not in options

Let say the total no. of instructions to be executed is 100
By the ratio of 2:3
Floating point instructions N(Ft): 40
Fixed point instruction N(Fd): 60

Before scenario
Time taken to process a floating point instruction T(Ft):2 units
Time taken to process a fixed point instruction T(Fd): 1 unit

Total time to execute T(B)=N(Ft) * T(Ft) + N(Fd) * T(Fd)=40*2+60*1=140 units

After scenario
When speed of floating point processing is increased by 20% means time to execute a floating instruction in reduced by 20%
Before T(Ft) was 2 units
Now time taken to process a floating point instruction T(Ft):2 - 20% of 2 =1.6 units (After)

Similarly speed of fixed point processing is increased by 10% hence
Before T(Fd) was 1 units
Now time taken to process a fixed point instruction T(Fd): 1 - 10% of 1=0.9 units (After)

Total time to execute T(A)= 40*1.6+60*0.9=118units

So Speed up gained is T(B)/T(A) =140/118=1.186 (approx)

 

28.  The initial basic feasible solution to the following transportation problem using Vogel's approximation method is                                                   


D1
D2
D3
D4
Supply
S1
1
2
1
4
30
S2
3
3
2
1
50
S3
4
2
5
9
20
Demand
20
40
30
10



(A)   X11 = 20, X13 = 10, X21  = 20,    X23 = 20, X24 = 10, X32  = 10,         Total Cost = 180
(B)   X11 = 20, X12 = 20, X13  = 10,    X22 = 20, X23 = 20, X24  = 10,         Total Cost = 180
(C)   X11 = 20, X13 = 10, X22  = 20,     X23 = 20, X24 = 10, X32  = 10,         Total Cost = 180
(D)   None of the above



29.    58 lamps are to be connected to a single electric outlet by using an extension board each of which has four outlets. The number of extension boards needed to connect ail the light is
(A)    29
(B)    28
(C)    20
(D)    19

30.    Match the following with respect to the Mobile Computing Architecture.
a.  Downlink control                                1.  100Mbps
b.  Radio communication data rate           2.  Residency latency (RL)
c.  The average duration of                       3. Sending data from a BS to MD

     user's stay in cell        

d.  FDDI bandwidth                                  4.  2-Mbps

Codes :      
        a      b    c    d
(A)   2     1    4    3
(B)   3     4    2    1
(C)   4     1    2    1
(D)   4     3    1    2

31.    Which of the following flags are set when 'JMP' instruction is executed ?
(A)    SF and CF
(B)    AF and CF
(C)    All flags
(D)    No flag is set

32.    A thread is a light weight process. In the above statement, weight refers to
(A)    time
(B)    number of resources
(C)    speed
(D)    All the above

33.    The Z-buffer algorithm is used for Hidden surface removal of objects. The maximum number of objects that can be handled by this algorithm shall
(A)    Depend on the application
(B)    be arbitrary no. of objects
(C)    Depend on  the memory availability
(D)    Depend on the processor

 34.    The power set of AUB, where A = {2,3, 5,7} and B = {2,5, 8,9} is
(A)    256
(B)    64
(C)    16
(D)    4

35.    In Win32, which function is used to create Windows Applications ?
(A)    WinAPP
(B)    Win API
(C)    Win Main
(D)    WinVoid

36.    Suppose a processor does not have any stack pointer registers, which of the following statements is true ?
(A)    It cannot have subroutine call instruction.
(B)    It cannot have nested subroutine calls.
(C)    Interrupts are not possible.
(D)    All subroutine calls and interrupts are possible.

37.    Everything below the System call interface and above the physical hardware is known as______.
(A)    Kernel
(B)    Bus
(C)    Shell
(D)    Stub

38.    Which is not the correct statement ?
(A)   The class of regular sets is closed under homomorphisms.
(B)    The class of regular sets is not closed under inverse homomorphisms.
(C)    The class of regular sets is closed under quotient.
(D)    The class of regular sets is closed under substitution.

39.    When a programming Language has the capacity to produce new data type, it is called as,
(A)   Overloaded Language
(B)    Extensible Language
(C)    Encapsulated Language
(D)    Abstraction Language

40.    Which of the following operating system is better for implementing client-server network ?
(A)    Windows 95
(B)    Windows 98
(C)    Windows 2000
(D)    All of these

41.    Consider a system having m resources of the same type. These resources are shared by 3 processes A, B and C which have peak demands of 3,4 and 6 respectively. For what value of m deadlock will not occur ?
(A)   7
(B)   9
(C)   10
(D)   13

42.    The grammar 'G1'
         S -> OSO| ISI | 0|1|∈         and the grammar 'G2' is
         S -> as |asb| X, X -> Xa | a.
Which is the correct statement ?
(A)    G1 is ambiguous, G2 is unambiguous
(B)    G1 is unambiguous, G2 is ambiguous
(C)    Both G1 and G2 are ambiguous
(D)    Both G1 and G2 are unambiguous   

43.    Consider n processes sharing the CPU in round robin fashion. Assuming that each process switch takes s seconds. What must be the quantum size q such that the overhead resulting from process switching is minimized but, at the same time each process is guaranteed to get its turn at the CPU at least every t seconds ?
(A)    q ≤ t - ns / n - 1
(B)    q ≥ t - ns / n - 1
(C)    q ≤ t - ns / n + 1
(D)    q ≥ t - ns / n + 1

44.    The Default Parameter Passing Mechanism is called as  
(A)    Call by Value
(B)    Call by Reference
(C)    Call by Address
(D)    Call by Name

45.    Which of the following regular expression identities are true ?
(A)    (r + s)* = r*s*
(B)    (r + s)* = r* + s*
(C)    (r + s)* = (r*s*)*
(D)     r* s*   =  r* + s*

46.    Two graphs A and B are shown below : Which one of the following statement is true?


(A)    Both A and B are planar.
(B)    Neither A nor B is planar.
(C)    A is planar and B is not.
(D)    B is planar and A is not.

47.    The minimum number of states of the non-deterministic finite automation which accepts the language
        {a b a bn |n ≥ 0} ∪ {a b an |n ≥ 0} is
(A)    3 
                   (B)    4
(C)    5                    (D)    6

48.    Functions defined with class name are called as
(A)    Inline function
(B)    Friend function
(C)    Constructor

(D)    Static function

 49.    Let f be the fraction of a computation (in terms of time) that is parallelizable, P the number of processors in the system, and sp the speed up achievable in comparison with sequential execution   -   then   the sp can be calculated using the relation :
(A)    1 / 1 - f - f/P
(B)    P / P - f(P+1)
(Q     1 / 1 - f + f/P
(D)    P / P + f(P-1)

50.    Which of the following definitions generates the same Language as L, where L=(WWR | W ∈ {a,b}*}
(A)    S -> asb|bsa|∈
(B)    S -> asa|bsb|∈
(C)    S -> asb|bsa|asa|bsb|∈
(D)    S -> asb|bsa|asa|bsb

51.     Suppose there are logn sorted lists of n logn elements each. The time complexity of producing a sorted list of all these elements is (use heap data structure)
(A)    O(n log logn)
(B)    θ(n logn)
(C)    Ω(n logn)
(D)    Ω(n3/2)

52.    Consider the program below in a hypothetical programming language which allows global variables and a choice of static or dynamic scoping
int i;
program Main( )
{
   i = 10;
   call f ();
}
procedure f( )
{
   int i = 20;
   call g ( );
}
procedure g( )
{
   print i;
}
Let x be the value printed under static scoping and y be the value printed under dynamic scoping. Then x and y are
(A)   x = 10, y = 20
(B)   x = 20, y = 10
(C)   x = 20, y = 20
(D)   x = 10, y = 10

53.     If the parse tree of a word w generated by a Chomsky normal form grammar has no path of length greater than i, then the word w is of length

(A)    no greater than 2i+1
(B)    no greater than 2i
(C)   no greater than 2i-1
(D)   no greater than i

54.    The Object Modelling Technique (OMT) uses the following three kinds of model to describe a system

(A)    Class Model, Object Model and Analysis Model.
(B)    Object Model, Dynamic Model, and Functional Model.
(C)    Class Model, Dynamic Model and Functional Model.
(D)    Object Model, Analysis Model and Dynamic Model.

55.    The factors that determine the quality of a software system are

(A)    correctness, reliability
(B)    efficiency, usability, maintain-ability
(C)    testability, portability, accuracy, error tolerances, expandability, access control, audit.
(D)    All of the above

56.    If a relation with a Schema R is decomposed into two relations R
1 and R2 such that (R1R2) = R1 then which one of the following is to be satisfied for a lossless joint decomposition (—> indicates functional dependency)
(A)   (R1 ∩ R2) —> R1  or R1∩ R2  —> R2
(B)    R1∩ R2  —> R1
(C)   R1∩ R2  —> R2
(D)   R1 ∩ R2 —> Rand R1∩ R2  —> R2

57.     Given the following statements :

(i)     Recursive enumerable  sets  are closed under complementation.
(ii)    Recursive sets are closed under complementation.
Which is/are the correct statements ?
(A)    only(i)
(B)    only(ii)
(C)    both (i) and (ii)
(D)    neither (i) nor (ii)

58.     Skolemization is the process of

(A)    bringing all the quantifiers in the beginning of a formula in FDL.
(B)    removing all the universal quantifiers.
(C)    removing all the existential quantifiers.
(D)    all of the above.

59.    Which level of Abstraction describes how data are stored in the data base ?

(A)    Physical level

(B)    View level
(C)    Abstraction level
(D)    Logical level

60.    The  transform  which  possesses  the "multi-resolution" property is

(A)    Fourier transform
(B)    Short-time-Fourier transform
(C)    Wavelet transform

(D)    Karhunen-Loere transform

61.    Which one is a collection of templates and rules ?

(A)    XML
(B)    CSS

(C)    DHTML
(D)    XSL

62.    A program P calls two subprograms P1 and P2. P1 can fail 50% times and P2 40% times. Then P can fail

(A)    50%
(B)    60%
(C)    10%
(D)    70%

63.    Third normal form is based on the concept of _____.

(A)    Closure Dependency
(B)    Transitive Dependency

(C)    Normal Dependency
(D)    Functional Dependency

64.    If the Fourier transform of the function f(x, y) is F(m, n), then the Fourier transform of the function f(2x, 2y) is :

(A)    1/4 F(m/2 ,n/2)
(B)    1/4 F(2m ,2n)
(C)    1/4 F(m,n)
(D)   1/4 F(m/4 ,n/4)

65.  ______ establishes information about when, why and by whom changes are made in a software.

(A)    Software Configuration Management.
(B)    Change Control.
(C)    Version Control.
(D)   An Audit Trail


Explanation:-
SCM Tool Features

Versioning - control changes to all work products before and after release to customer.

Dependency tracking and change management - tracking relationships among multiple versions of work products to enable efficient changes (link management)

Requirements tracing - depends on link management, provides the ability to track all work products that result from a specific requirements specification (forward tracing) and to identify which requirement generated by any given work product (backward tracing)

Configuration management - works closely with link management and versioning facilities to keep track of a series of configurations representing project milestones or production releases

Audit trails - establishes additional information about when, where, why, and by whom changes were made



66.    Match the following with respect to HTML tags and usage.

a.  CITE          1. Italic representation
b.  EM             2. Represents output from programmes
c.  VAR           3. Represents to other source
d.  SAMP       4. Argument to a programme
Codes :
        a        b       c       d
(A)   3       1       4       2

(B)   2       3       1       4
(C)   4       2       3       1
(D)   1       3       4       1

67.    An expert System shell is an expert system without

(A)    domain knowledge
(B)    explanation facility
(C)    reasoning with knowledge
(D)    all of the above


68.    An example of  a dictionary-based coding technique is

(A)    Run-length coding
(B)    Huffman coding
(C)    Predictive coding
(D)    LZW coding


69.    Which is the method used to retrieve the current state of a check box ?

(A)    get State ( )

(B)    put State ( )
(C)    retrieve State ( )
(D)   write State ( )

70.    Referential integrity is directly related to

(A)    Relation key
(B)    Foreign key

(C)    Primary key
(D)    Candidate key

71.    You are given four images represented as


The value of entropy is maximum for image              
(A)   I1
(B)    I2
(C)    I3              
(D)    I4              

72.    A cryptarithmetic problem of the type

         SEND
    +   MORE      
         MONEY   
Can be solved efficiently using
(A)    depth first technique
(B)    breadth first technique
(C)    constraint satisfaction technique
(D)    bidirectional technique

73.    Match the following

a.  Supervised learning            1. The decision  system receives rewards for its action at the end of a
                                                  sequence of steps.
b. Unsupervised learning         2. Manual labels of  inputs are not used.
c. Re-reinforcement learning    3. Manual labels of inputs are used.
d. Inductive learning                4. System learns by  example
Codes :      
        a       b    c    d
(A)   1       2    3    4
(B)   2       3    1    4
(C)   3       2    4    1
(D)   3       2    1    4

74.    A* algorithm is guaranteed to find an optimal solution if

(A)    h' is always 0.
(B)    g is always 1.
(C)    h' never overestimates h.
(D)    h' never underestimates h.

75.    Let θ(x, y, z) be the statement "x + y = z" and let there be two quantifications given as

(i)     ∀x ∀y ∃z θ(x, y, z)
(ii)     ∃z ∀x ∀y θ(x, y, z)
Where x, y, z are real numbers, Then which one of the following is correct ?
(A)    (i) is true and (ii) is true.
(B)    (i) is true and (ii) is false.
(C)    (i) is false and (ii) is true.
(D)    (i) is false and (ii) is false.

4 comments:

  1. Which provides an interface to the TCP/IP suit protocols in Windows95 and Windows NT ?
    (A) FTP Active-X Control
    (B) TCP/IP Active-X Control
    (C) Calinsock Active-X Control
    (D) HTML Active-X Control
    Ans: C
    someone claim that the answer is D HTML Active-X Control what about it ?

    ReplyDelete
  2. (B)TCP/IP Active-X Control is the correct answer of this question

    ReplyDelete
  3. WINSOCK ACTIVE X CONTROL IS THE CORRECT ANSWER THIS QUESTIOJ OPTION IS WRONG

    ReplyDelete
  4. This comment has been removed by a blog administrator.

    ReplyDelete