## Where is DFA used?

DFA uses include protocol analysis, text parsing, video game character behavior, security analysis, CPU control units, natural language processing, and speech recognition.

### How many types of DFA are there?

Types of Automata: There are two types of finite automata: DFA(deterministic finite automata) NFA(non-deterministic finite automata)

#### What does Kleene’s theorem state about languages that can be defined with Dfasand languages that can be denoted with regular expressions?

What does Kleene’s Theorem state about the family of languages that can be defined with DFAs and the family of languages that can be denoted with regular expressions? They are the same family of languages.

**What is automata and its example?**

Automatic photo printing machines, artificial card punching machine, human detection and reorganization machine etc. are the real time examples of automata. Under the computer science branch the term ‘Automata’ means ‘Discrete Automata’ and it is defined as; Model of Discrete Automata.

**What is DFA and NFA explain with the help of example?**

DFA stands for Deterministic Finite Automata. NFA stands for Nondeterministic Finite Automata. 2. For each symbolic representation of the alphabet, there is only one state transition in DFA. No need to specify how does the NFA react according to some symbol.

## What is NFA and DFA with Example?

In NFA, when a specific input is given to the current state, the machine goes to multiple states. It can have zero, one or more than one move on a given input symbol. On the other hand, in DFA, when a specific input is given to the current state, the machine goes to only one state.

### What are NFA and DFA explain with examples?

NFA refers to Nondeterministic Finite Automaton. A Finite Automata(FA) is said to be non deterministic, if there is more than one possible transition from one state on the same input symbol….Difference between DFA and NFA :

SR.NO. | DFA | NFA |
---|---|---|

9 | All DFA are NFA. | Not all NFA are DFA. |

10 | DFA requires more space. | NFA requires less space then DFA. |

#### What is Kleene theorem automata?

Kleene’s theorem: The set of regular languages, the set of NFA-recognizable languages, and the set of DFA-recognizable languages are all the same.

**What is Kleene star automata?**

Definition − The Kleene star, ∑*, is a unary operator on a set of symbols or strings, ∑, that gives the infinite set of all possible strings of all possible lengths over ∑ including λ.

**What is linear bounded automata with example?**

A linear bounded automaton is a multi-track non-deterministic Turing machine with a tape of some bounded finite length. The computation is restricted to the constant bounded area.