1. In Prolog, a ________ is a statement that is unconditionally accepted as true.

Which of the following is true about Prolog?

• It is a procedural programming language

• It is a functional programming language

• It is a logic programming language

• It is an object-oriented programming language

Which of the following is NOT a valid Prolog variable name?

• X

• _Y

• 1Z

• Var

What does the 'cut' operator (!) do in Prolog?

• Halt program execution

• Restart program execution

• Prevent backtracking

• Trigger backtracking

Which of the following statements is true about Prolog execution?

• Prolog executes top-down

• Prolog executes bottom-up

• Prolog executes both top-down and bottom-up simultaneously

• Prolog execution order is not defined