Flip-Flops and Timers - Technical MCQs

Q1:

The truth table for an S-R flip-flop has how many VALID entries?

A 3

B 1

C 4

D 2

ANS:A - 3

S-R Flip Flop Truth Table Is:

0 0 No any change.
0 1 reset condition.
1 0 set condition.