Which logic gate is represented by this figure?

In the circuit below,$A$ and $B$ represent two inputs and $C$ represents the output.

The output $(X)$ of the logic circuit shown in the figure will be:

In the given circuit,$A$ and $B$ are two inputs and $C$ is the output. Which logic gate does this circuit represent?

The Boolean equation of a logic gate is $Y = \bar{A} \cdot B + A \cdot \bar{B}$. Identify the logic gate and describe its construction using $OR$,$AND$,and $NOT$ gates.

The figure below shows a combination of $NOT$ gates and a $NOR$ gate. The combination is equivalent to: