UGC NET CS Previous Year Question Paper – With Solutions

Last Updated : 13 Jun, 2024

The page contains solutions of previous year UGC NET CS (Computer Science) papers with explanations, topic wise Quizzes, notes/tutorials and important links for preparation.

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UGC-NET | UGC NET CS 2018 July - II | Question 95

The hexadecimal equivalent of the binary integer number 110101101 is: (A) D24 (B) 1BD (C) 1AE (D) 1AD Answer: (D) Explanation: Group the given number in subgroup of 4 from right and assign alphabet when it exceeds 1001: 1010 - A 1011 - B 1100 - C 1101 - D 1110 - E 1111 - F Given number is 110101101: 1101 - D 1010 - A 1 - 1 Hexadecimal equivalent is

UGC-NET | UGC-NET CS 2017 Nov - III | Question 11

Given two relations R1(A, B) and R2(C, D), the result of following query Select distinct A, B from R1, R2 is guaranteed to be same as R1 provided one of the following condition is satisfied. (A) R1 has no duplicates and R2 is empty. (B) R1 has no duplicates and R2 is non - empty. (C) Both R1 and R2 have no duplicates. (D) R2 has no duplicates and R

UGC-NET | UGC NET CS 2016 Aug - III | Question 2

8085 microprocessor has ____ bit ALU. (A) 32 (B) 16 (C) 8 (D) 4 Answer: (C) Explanation: 8085 microprocessor has 8 bit ALU. 8086 microprocessor has 16 bit ALU. So, option (C) is correct. Quiz of this Question

UGC-NET | UGC NET CS 2016 Aug - III | Question 3

The register that stores the bits required to mask the interrupts is ______. (A) Status register (B) Interrupt service register (C) Interrupt mask register (D) Interrupt request register Answer: (C) Explanation: The register that stores the bits required to mask the interrupts is Interrupt mask register. The register that stores the bits required f

UGC-NET | UGC NET CS 2016 Aug - III | Question 4

Which of the following in 8085 microprocessor performs HL = HL + HL? (A) DAD D (B) DAD H (C) DAD B (D) DAD SP Answer: (B) Explanation: DAD will perform Double addition (16 bit) between HL pair and any other pair of register. Among HL, BC, DE and SP; B, H and D register will be used first. So, DAD H will do HL = HL + HL; DAD B will do HL = HL + BC;

UGC-NET | UGC NET CS 2016 Aug - III | Question 5

In ______ addressing mode, the operands are stored in the memory. The address of the corresponding memory location is given in a register which is specified in the instruction. (A) Register direct (B) Register indirect (C) Base indexed (D) Displacement Answer: (B) Explanation: In register indirect addressing mode, the operands are stored in the mem

UGC-NET | UGC-NET CS 2017 Nov - III | Question 8

Suppose a database schedule S involves transactions T1, T2, .............,Tn. Consider the precedence graph of S with vertices representing the transactions and edges representing the conflicts. If S is serializable, which one of the following orderings of the vertices of the precedence graph is guaranteed to yield a serial schedule ? (A) Topologic

UGC-NET | UGC-NET CS 2017 Nov - III | Question 9

If every non-key attribute is functionally dependent on the primary key, then the relation is in __________ . (A) First normal form (B) Second normal form (C) Third normal form (D) Fourth normal form Answer: (B) Explanation: Conditions for various normal forms: 1 NF - A relation R is in first normal form (1NF) if and only if all underlying domains

UGC-NET | UGC-NET CS 2017 Nov - III | Question 10

Consider a relation R (A, B, C, D, E, F, G, H), where each attribute is atomic, and following functional dependencies exist. CH → G A → BC B → CFH E → A F → EG The relation R is __________ . (A) in 1NF but not in 2NF (B) in 2NF but not in 3NF (C) in 3NF but not in BCNF (D) in BCNF Answer: (A) Explanation: If we find closure of A: A+ → All attribute

UGC-NET | UGC NET CS 2015 Jun - II | Question 28

Which of the following is not associated with the session layer ? (A) Dialog control (B) Token management (C) Semantics of the information transmitted (D) Synchronization Answer: (C) Explanation: Dialog control, Token management and Synchronization is associated with session layer. Semantics of the information transmitted is associated with present

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