Q. Consider the following two statements:

(a) A publicly derived class is a subtype of its base class.
(b) Inheritance provides for code reuse.

Which of the above statements is correct?

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Q. In general, in a recursive and non-recursive implementation of a problem (program):

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Q. A three dimensional array in ‘C’ is declared as int A[x][y][z]. Here, the address of an item at the location A[p][q][r] can be computed as follows (where w is the word length of an integer):

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Q. The number of disk pages access in B-tree search, where h is height, n is the number of keys, and t is the minimum degree, is:

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Q. An ideal sort is an in-place-sort whose additional space requirement is ...............

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Q. Loop unrolling is a code optimization technique:

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Q. Match the following w.r.t. programming languages:

List - I                                     List – II
(a) JAVA                        (i) Dynamically object oriented
(b) Python                     (ii) Statically Non-object oriented
(c) Prolog                      (iii) Statically object oriented
(d) ADA                         (iv) Dynamically non-object oriented

Codes:
   (a)  (b)  (c)  (d)

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Q. In Activity-Selection problem, each activity i has a start time si and a finish time fi where si≤fi. Activities i and j are compatible if:

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Q. Floyd-Warshall algorithm utilizes ............... to solve the all-pairs shortest paths problem on a directed graph in ................ time.

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Q. Which of the following is used to make an Abstract class ?

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Q. Match the following with reference to object oriented modelling :

List - I                         List - II

(a) Polymorphism        (i) Picking both operator and attributes with
operations appropriate to model an object
(b) Inheritance             (ii) Hiding implementation details of methods
from users of objects
(c) Encapsulation        (iii) Using similar operations to do similar things
(d) Abstraction              (iv) Create new classes from existing class

Codes :
      (a)   (b)  (c)   (d)

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Q. 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.

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Q. Consider the following conditions :

(a) The solution must be feasible, i.e. it must satisfy all the supply and demand constraints.
(b) The number of positive allocations must be equal to m+n-1, where m is the number
of rows and n is the number of columns.
(c) All the positive allocations must be in independent positions.

The initial solution of a transportation problem is said to be non-degenerate basic feasible solution if it satisfies :

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Q. Big-O estimates for the factorial function and the logarithm of the factorial function i.e. n! and log n! is given by

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Q. Match the following:

List-I                                       List-II
a. Classification           i. Principal Component Analysis
b. Clustering                 ii. Branch and Bound
c. Feature Extraction   iii. K-nearest neighbour
d. Feature Selection   iv. K-means

Codes:
      a    b    c    d

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Q. Merge sort makes two recursive calls. Which statement is true after these two recursive calls finish, but before the merge step?

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Q. Searching for an element in the hash table requires O(1) time for the ............... time, whereas for direct addressing it holds for the ............. time.

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Q. An algorithm is made up of 2 modules M1 and M2. If time complexity of  modules M1 and M2 are h(n) and g(n) respectively, the time complexity of the algorithm is

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Q. What is the maximum number of parenthesis that will appear on the stack at any one time for parenthesis expression given by

( ()     (())         (()) )

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Q. Suppose that the splits at every level of Quicksort are in proportion 1-β to β, where 0<β≤0.5 is a constant. The number of elements in an array is n. The maximum depth is approximately

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