Verification and interpretation of truth table for AND, OR, NOT, NAND, NOR, Ex-OR, Ex-NOR gates.

The expression of an Ex-OR gate is ____________
When logic gates are connected to form a gating/logic network it is called as a ______________ logic circuit.
The NOR gate is OR gate followed by ____________
The NAND gate is AND gate followed by ______________
In boolean algebra, the bar sign (-) indicates ___________