The document outlines a task to design a deterministic finite automaton (DFA) that accepts strings containing exactly two occurrences of the letter 'a'. The alphabet for the language comprises the characters 'a' and 'b'. The assignment is worth four points.

1. 2. Construct a DFA to accept a language consisting of the set of all strings that have exactly two
occurrences of a . Note that = { a , b } 4 points