10 Questions
In a deterministic finite automaton (DFA), how many start states can there be?
Exactly one start state
What is the minimum number of final states required in a DFA?
At least one final state
What happens if a character is encountered for which no transition is defined in the current state of a DFA?
The DFA rejects the input string
What is the defining characteristic of a deterministic finite automaton (DFA) in terms of the number of start states?
It has exactly one start state
What is the significance of the transitions in a deterministic finite automaton (DFA)?
Transitions determine how the automaton switches between states given an input symbol
How many final states can a deterministic finite automaton (DFA) have?
It can have multiple final states
What is the purpose of using parentheses in constructing a compound regular expression?
To group subexpressions and avoid ambiguity
What is a base case for a regular expression (RE)?
The empty string (i.e., 'ε')
In the context of regular expressions, what does the Kleene star (*) represent?
Zero or more occurrences of the preceding regular expression
Which construction is used to denote alternation between two regular expressions in a compound RE?
Optional repetition
Test your knowledge of deterministic finite automaton in lexical analysis with this quiz. Explore the concepts of states, start state, final states, and transitions in DFA.
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