The truth table for the given logic circuit is

In the following logic circuit,the sequence of the inputs $A, B$ are $(0,0), (0,1), (1,0)$ and $(1,1)$. The output $Y$ for this sequence will be:

Which of the following gates is called a universal gate?

The following figure shows a logic gate circuit with two inputs $A$ and $B$ and the output $Y.$ The voltage waveforms of $A, B$ and the output $Y$ are as given in the diagram. The logic gate is $:-$

The logic relation is given by $Y = \bar{A} \cdot B + A \cdot \bar{B}$. Construct this gate using $AND$,$OR$,and $NOT$ gates.

What is the truth table for the given logic gate combination?