NTA UGC NET 2019 June – II

Question 1

How many are there to place 8 indistinguishable balls into four distinguishable bins

• A. 70
• B. 165
• C. 8 C 4
• D. 8P 4T

Answer: (B)

NTA UGC NET 2019 June - II Mathematical Logic UGC
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= C(8+4-1,8) = 11 C​ 8 = 11! / (8!(11-8)!) = 165

Question 2

Match List-I with List-II: List-I                                   List-II (Software process Models)                      (Software System) (a) Waterfall model                        (i) e-business that starts with only the basic functionality and then moves on to more advanced features. (b) Incremental development       (ii) An inventory control system for a supermarket to be developed on a highway (c) Prototyping                               (iii) A virtual reality system for simulating vehicle navigation on a highway. (d) RAD                              (iv) Automate the manual system for student record maintenance in a school Choose the correct option from those given below:

• A. a-ii,b-iv,c-i,d-iii
• B. a-i,b-iii,c-iv,d-ii
• C. a-iii,b-ii,c-iv,d-i
• D. a-iv,b-i,c-iii,d-ii

Answer: (D)

NTA UGC NET 2019 June - II Software Engineering Software Process Models UGC
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1. Waterfall model: Automate the manual system for student record maintenance in a school 2. Incremental development: e-business that starts with only the basic functionality and then moves on to more advanced features. 3. Prototyping: A virtual reality system for simulating vehicle navigation in a highway. 4. RAD: An inventory control system for a supermarket to be developed on a highway

Question 3

A computer has six tape drives with n processes competing for them. Each process may need two drives. What is the maximum value of n for the system to be deadlock-free?

• A. 5
• B. 4
• C. 3
• D. 6

Answer: (A)

NTA UGC NET 2019 June - II Basics of Operating Systems UGC Deadlocks UGC
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Each process needs 2 drives. So for deadlock just give each process one drive. So total 6 processes can be given 1 drive each and can cause deadlock. So to break the deadlock just reduce 1 process. So maximum no. of processes for the system to be deadlock-free is 5.

Question 4

In the context of 3D computer graphics, which of the following statements is/are TRUE? P: Orthographic transformations keep parallel lines parallel Q: Orthographic transformations are affine transformations Select the correct answer from the options given below:

• A. Both P and Q
• B. Neither P and Q
• C. Only P
• D. Only Q

Answer: (A)

NTA UGC NET 2019 June - II Computer Graphics UGC
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Question 5

Which of the following statements are DML statements? (a) Update [tablename] Set [ columnname] = VALUE (b) Delete [tablename] (c) Select * from [tablename]

• A. a and b
• B. a and d
• C. a, b, and c
• D. b and c

Answer: (C)

NTA UGC NET 2019 June - II
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DML commands: SELECT INSERT UPDATE DELETE MERGE LOCK TABLE

Question 6

What percentage(%) of the IPv4, IP address space do all class C addresses consume?

• A. 12.5%
• B. 25%
• C. 37.5%
• D. 50%

Answer: (A)

NTA UGC NET 2019 June - II Computer Networks UGC IP Addressing 50 Computer Networks MCQs with Answers
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Class-C: 192 to 223. It means 12.5 %

Question 7

Which of the following key constraints is required for the functioning of the foreign keys in the context of a relational database?

• A. Unique Key
• B. Primary Key
• C. Candidate Key
• D. Check key

Answer: (B)

NTA UGC NET 2019 June - II DBMS Concepts UGC
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A foreign key is a key whose values depend on the primary key of a relation. So for the functioning of a foreign key in the context of a relational database we need a primary key.

Question 8

Software Reuse is

• A. The process of analyzing software with the objective of recovering its design and specification.
• B. The process of existing software artifacts and knowledge to build new software.
• C. Concerned with reimplementing legacy systems to make them more maintainable.
• D. The process of analyzing software to create a representation of a higher level of abstraction and breaking software down into its parts to see how it works.

Answer: (B)

NTA UGC NET 2019 June - II Software Engineering Software Design UGC
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Software Reuse is the process of existing software artifacts and knowledge to build new software.

Question 9

Which of the following is the principal conjunctive normal form for [(pVq) ∧ ~p → ~q]?

• A. pV~q
• B. pVq
• C. ~pVq
• D. ~pV~q

Answer: (A)

NTA UGC NET 2019 June - II Mathematical Logic UGC Propositional and First Order Logic.
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Question 10

Match List-I with List-II List-I                          List-II (a) p → q                (i) ¬(q → ¬p) (b) p v q                   (ii) p ∧ ¬q (c) p ∧ q                  (iii) ¬p → q (d) ¬(p → q)            (iv) ¬p v q Choose the correct option from those given below:

• A. a-ii,b-iii,c-i,d-iv
• B. a-ii,b-i,c-iii,d-iv
• C. a-iv,b-i,c-iii,d-ii
• D. a-iv,b-iii,c-i,d-ii

Answer: (D)

NTA UGC NET 2019 June - II Mathematical Logic UGC Propositional and First Order Logic.
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