UGC NET CS 2023 Question Paper & Answers
The official UGC NET CS 2023 question papers, with the official answer key. Attempt as a real timed exam (with negative marking) or switch to practice mode for instant per-question answers and explanations.
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Official PYQ
UGC NET Computer Science and Applications 2023 (December cycle, Paper 2)
120 Mins 200 Marks
100Questions
200Max Marks
Sample questions from UGC NET Computer Science and Applications 2023 (December cycle, Paper 2)
1Consider a triangle PQR with coordinates as P(0,0) Q(2, 2) and R(10, 4). If this triangle is to be magnified to four times its size while keeping R(10, 4) fixed, then the coordinates of the magnified triangle are:
- A) P(-20,12), Q(-20,-4) and R(10,4)
- B) P(-30,12), Q(-22,-4) and R(10,4)
- C) P(25,10), Q(22,-4) and R(10,4)
- D) P(30,12), Q(-22,4) and R(10,4)
Answer: B
2Identify the code sequence: 1010101110011000
- A) BCD
- B)
- C) Gray
- D) gray
Answer: C
3Arrange the following steps in the correct order for a DHCP Client to renew its IP lease with a DHCP server:
(A) DHCP client sends a DHCPREQUEST message
(B) DHCP server acknowledges the renewal with a DHCPACK message
(C) DHCP client checks the local lease timer and initiates renewal
(D) DHCP server updates its lease database
Choose the correct answer from the options given below:
- A) (A), (B), (C), (D)
- B) (C), (D), (B), (A)
- C) (C), (B), (A), (D)
- D) (C), (A), (B), (D)
Answer: D
4Given below are two statements:
Statement (I): In datagram networks, routers hold state information about connections
Statement (II): In virtual circuit network, each virtual circuit requires router table space per connection
In the light of the above statements, choose the most appropriate answer from the options given below:
- A) Both Statement I and Statement II are correct
- B) Both Statement I and Statement II are incorrect
- C) Statement I is correct but Statement II is incorrect
- D) Statement I is incorrect but Statement II is correct
Answer: D
5Match List – I with List – II according to input to the compiler phase that process it:
List-I | List-II
(A) Syntax tree | (I) Code generator
(B) Intermediate representation | (II) Semantic analyzer
(C) Token stream | (III) Lexical analyzer
(D) Character stream | (IV) Syntax analyser
Choose the correct answer from the options given below:
- A) (A)-(IV), (B)-(III), (C)-(I), (D)-(II)
- B) (A)-(II), (B)-(I), (C)-(IV), (D)-(III)
- C) (A)-(II), (B)-(IV), (C)-(I), (D)-(III)
- D) (A)-(IV), (B)-(I), (C)-(II), (D)-(III)
Answer: B
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Official PYQ
UGC NET Computer Science and Applications 2023 (June cycle, Paper 2)
120 Mins 200 Marks
100Questions
200Max Marks
Sample questions from UGC NET Computer Science and Applications 2023 (June cycle, Paper 2)
1Which of the following statement is correct?
A. Ackermann's function is primitive recursive.
B. L = {aⁿ bᵏ c^(n+k) / n≥0, k≥0} is a regular language.
C. L = {aⁿ b^j / n=j²} is not a context free language
D. For every context sensitive language L not including λ, there exists some linear bounded automata M such that L=L(M).
- A) A
- B) B
- C) C
- D) D
Answer: C
2What is the output of following code?
main() {
struct s1 { char *z; int i; struct ; };
static struct s1 a[] = {
{"Nagpur", 1, },
{"Raipur", 2, },
{"Kanpur", 3, a}
};
struct ;
printf("%s %s %s
", a[0].z, ptr->z, a[2].p->z);
}
- A) Nagpur Raipur Kanpur
- B) Nagpur Nagpur Nagpur
- C) Kanpur Kanpur Kanpur
- D) Error
Answer: B
3There are M points on one straight line AB and n points on another straight line AC, none of them being A. How many triangles can be formed with these points as vertices?
- A) mn()
- B) ()mn()
- C) ()mn()
- D) mn()
Answer: B
4Consider the following statements.
A. The identity is unique in any monoid.
B. A monoid is a group if there exists inverse of each element of monoid.
C. Semi group has closure, associative and identity properties.
D. Quasi group has closure property.
Choose the correct answer from the options given below:
- A) A, B and D only
- B) B, C and D only
- C) A, B and C only
- D) A, C and D only
Answer: A
5Which of the following scenarios may lead to an irrecoverable error in a database system?
- A) A transaction writes a data item after it is read by an uncommitted transaction
- B) A transaction reads a data item after it is read by an uncommitted transaction
- C) A transaction reads a data item after it is written by a committed transaction
- D) A transaction reads a data item after it is written by an uncommitted transaction.
Answer: D
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