CS8351- DPSD IAT-II MCQ

Three bits full adder contains

• 3 combinational inputs

• 4 combinational inputs

• 6 combinational inputs

• 8 combinational inputs

In a two-gate half adder circuit, which of the listed gates would produce a Carry output?

• AND

• OR

• XOR

• NAND

What type of circuit is illustrated in the given Fig ?

• Full Adder

• Demultiplexer

• Multiplexer

• Comparator

Refer to Fig, If S1=1 and S2= 0 what will be the logic state at the output X?

• X=A

• X=B

• X=C

• X=D

Most demultiplexers facilitate which of the following?

• decimal to hexadecimal

• single input, multiple outputs

• AC to DC

• odd parity to even parity

One application of a digital multiplexer is to facilitate:

• code conversion

• parity checking

• parallel-to-serial data conversion

• data generation

When two or more inputs are active simultaneously, the process is called

• first-in, first-out processing

• priority encoding

• ripple blanking

• priority decoding

A magnitude comparator determines:

• A  $\ne$  B and if A  $\le$   B or A > B

• A almost equal to B and if A > B or A < b

• A = B , A > B and A < B

• D. A identical to B and if A < B or A> B

A basic multiplexer principle can be demonstrated through the use of a:

• single-pole relay

• DPDT switch

• rotary switch

• linear stepper

Mod-6 counter can be built using a three ________

• Shift register

• Flipflop

• bus

• trigger