QUESTION $2$

In a JK Flip Flop:

The next state $(q^{**})$ is the present state $(q)$ when the present inputs are $1(J=1,K=1)$

The next state $(q^{**})$ is the complement of the present state $(q^{\text{'}})$ if the present inputs are $1(J=1,K=1).$

To store a $0$ we need $J=1$ and $R=0.$

To store $1$ we need $J=0$ and $R=1.$

QUESTION $3$

In a SR Flip Flop:

Both inputs cannot be $1$ at the same time.

Both inputs cannot be $0$ at the same time.

It is an asynchronous device.

In order to store a $1$ we need $S=0$ and $R=1$