Bihar STET 2023 PGT Computer Science Question Paper (12-Sep-2023) (Shift 1)

Question 1

What is the simplified expression for the Boolean function F(A, B, C, D) = &Sigma;(0, 1, 2, 4, 5, 6, 8, 9, 10, 12, 13, 14) using the K - map method?

Accepted Answer

C' + D'

Answer

AC' + D'

Answer

A'B'C'D' + A'BC'D + ABC'D + ABCD

Answer

A'B'C'D' + A'BC'D' + A'BCD + ABCD

Question 2

In a PLA, what components are used to implement the combinational logic functions?

Accepted Answer

AND gates and OR gates

Answer

NAND gates and XOR gates

Answer

NOR gates and XNOR gates

Answer

NOT gates and multiplexers

Question 3

Which type of register is primarily used to temporarily hold data during arithmetic and logical operations in a microprocessor?

Accepted Answer

Accumulator register

Answer

Shift register

Answer

Parallel register

Answer

Counter register

Question 4

Which logic family uses both depletion and enhancement mode MOSFETs for its operation?

Accepted Answer

CMOS

Answer

TTL

Answer

ECL

Answer

PMOS

Question 5

What is the primary difference between ROM and RAM?

Accepted Answer

ROM stores permanent data that cannot be changed, while RAM stores temporary data that can be read and written

Answer

ROM is faster than RAM

Answer

ROM is volatile, while RAM is non - volatile

Answer

ROM is used for data storage, while RAM is used for program execution