U.G.C. NET Exam. December 2022 Paper-II (COMPUTER SCIENCE) and Applicatations.

Total Questions: 100

81. The incremental model of software development is ______

Correct Answer: (b) A good approach when a working core product is required quickly.
Solution:

The incremental model of software development is a good approach when a working core product is required quickly.

82. Consider the graph given below. What is the order in which the nodes mentioned in the options are to be traversed to find the shortest path from A to Z using best first search?

Correct Answer: (a) A→C→F→D→E
Solution:

83. The precedence of regular expression operators from lowest to highest precedence is :

Correct Answer: (c) Union, Concatenation, Star
Solution:

The precedence of regular expression operators from lowest to highest precedence is - Star is highest then concatenation and union is lowest precedence. So option (c) is correct.

84. Arrange the following in the correct order which respect to key generation for RSA algorithm.

A. Choose an integer e such that 1 < e < λ(n)
B. Compute Key length n = p*q
C. Find d which is equal to 1/e
E. Compute λ(n)
Choose the correct answer from the options given below :

Correct Answer: (c) D-B-E-A-C
Solution:

85. Which of the following is related to function of layers in a neural network?

A. Information - Input layer - Hidden layer
B. Blas - Output layer - hidden layer.
C. Hidden Layer - alogrithm - Output layer
D. Input layer - output layer - algorithms
Choose the correct answer from the options given below.

Correct Answer: (c) Only sequence 'C' is correct
Solution:

The correct option related to the function of layers in a neural network is
C. Hidden - Algorithm - Output layer

86. Given below are the two statements:

Statement I : The main objective for using virtual memory is to increase the effective capacity of the memory system.
Statement II : The size of virtual memory can be larger than the main memory.
In the light of the above statements, choose the correct answer from the options given below.

Correct Answer: (a) Both Statement I and Statement II are true.
Solution:

The given statement.
Statement I : The main objective for using virtual memory is to increase the effective capacity of the memory system. This statement is true.
Statement II : The size of virtual memory can be larger than main memory.
It is also true. So option (a) is correct.

87. Given below are the two statements :

Statement I : Any retireval request that is specified in the basic relational algebra can also be specified in relational calculus.
Statement II : Any retrieval request that is specified in the relational calculus can also be specified in basic relational algebra.
In the light of the above statements, choose the correct answer from the options given below.

Correct Answer: (a) Both Statement I and Statement II are true.
Solution:

The given statement
Statement I : Any retrieval request that is specified in the basic relational algebra can also be specified in relational calculus. This is true.
Statement -II : Any retrieval request that is specified in the relational calculus an also be specified in basic relational algebra.
This statement is true. So option (a) is correct.

88. The primary objectives of the SWE-IPT are to :

A. Solicit stake holder needs and expectations.
B. Specify the software requirements for the product and post-development processes.
C. Generate the integrated technical plans for accomplishing the software development effort. D. Translate stakeholder requirements into a complete, specified architectural description.
E. Ensure that the software technical data package is sufficiently detailed to facilitate an efficient and effective software implementation.
Choose the correct answer from the options given below :

Correct Answer: (a) All the statements are correct
Solution:

You are taking about the software Engineering Integrated Product Team (SWE - IPT) objectives.
The primary objectives of the SWE - IPT are as follows:
1. Solicit stakeholder needs and expectations.
2. Specify the software requirements for the product and post-development processes.
3. Generate the integrated technical plans for accomplishing the software development effort. 4. Translate stakeholder requirements into a complete, specified architectural description.
5. Ensure that the software technical data package is sufficiently detailed to facilitate an efficient and effective software development process.
So option (a) is correct.

89. Consider the following statements:

A. For every regular language, we can design Turing Machine.
B. For every context free language, we can design Turing Machine.
Which of the following is correct?

Correct Answer: (d) Statement-A and Statement-B both are true
Solution:

Both statement (A) and (B) are correct.
A. For every regular language, we can design a Turing Machine. Regular language are equivalent in power to the languages that can be recognized by a Turing Machine, So there exists a Turing Machine for every regular language.
B. For every context free language, we can design a Turing Machine. Similarly, context free language are also Turing -recognizable meaning there exists a Turing Machine that can recognize every contextfree language.

90. Given below are two statements one is labelled as Assertion A and the other is labelled as Reason R

A. Artificial Neural Networks are the backbone of deep learning algorithms.
R. Back propagation is one of the techniques used to train an ANN.
In the light of the above statements, choose the most appropriate answer from the options given below :

Correct Answer: (b) Both A and R are correct but R is NOT the correct explanation of A
Solution:

The most appropriate answer is Both A and R are correct but R is Not the correct explanation of A.
Explanation
Artificial Neural network are the backbone of deep learning algorithms.
Back propagation or backward propagation of error is an algorithm that is designed to test for errors working back from output nodes to input nodes. It is an important mathematical tool for improving the accuracy of predications in data mining and machine learning. Essentially, back propagation is an algorithm used to calculate derivation quickly.
So option (b) is correct.