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Wish, the given information about the Theoretical Computer Science MCQ will helpful to the advance and can learn the various types of questions and answers. Furthermore, the applicants can check our web portal to take part in more MCQ on various subject. APR/MAY 2010 Every Regular language defined by a regular expression ia also defined by the finite automata. Candidates can click on it to know the right option among the given alternatives. State the relations among regular expression, deterministic finite automata, non deterministic finite automaton and finite automaton with epsilon transition. Q No.Are you worried about the answers to Theoretical Computer Science questions :Finite Automata - conversion of dfa to nfa, Minimization of DFA? We have arranged the Show Answer button under the each question. You can see that A U B contain elements of both sets similar is the case with FA’s. ALL GATE QUESTIONS SUBJECT AND CHAPTER WISE CSE ×. It is like taking union of two sets, the resultant set contain members of both sets. When we take Union of two FA’s it means that resultant FA’s should accept all the words that were accepted by the two FA’s individually. It is a directed graph or flow chart having states and edges.
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The finite automata or finite state machine is an abstract machine that has five elements or tuples. There are two ways to represent finite Automata. Automata Theory Questions and Answers Finite Automata Theory Questions and Answers - SanfoundryAutomata theory - WikipediaFinite Automata. Q No.4 What is the concept of the Union of FA’s ? A finite automata consist of a set of finite states and a set of transitions from state to state that appears on input symbols chosen from an alphabet \sum. But this freedom is on the cost of more memory and processing power it means that if we implement TG’s on computer using some programming language it will need more memory and processing power of computer than used in the implementation of FA’s. TG’s can change state without an input ( Null transition).Ĭan read more than one letter (words of the language they are accepting) along the transition edges at a time.Ĭan have a regular expression as a edge label.
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The Transition Graphs (TG) differ from FA in the following areas Q No.3 What is the difference between FA’s and TG’s. One consequence is that the state we created a transition to i.e ( x 2, y 3), will be an accepting state. Every FA is also a TG but not every TG is FA. Final/Accepting states: Any state pair ( x i, y j) where x i was an accepting state in automata 1, or y j was an accepting state in automata 2, i.e any state where x 2 or y 2 is mentioned. In TG we write strings and in GTG we are bound to write RE. It may be noted that in GTG, the labels of transition edges are corresponding regular expressions. Quizzes Study Career Finite Automata Quiz Question SHARE TO FACEBOOK. In GTG Directed edges connecting some pair of states are labeled with regular expressions. Practice these Compiler Design MCQ questions on Finite Automata with answers and their explanation which will help you to prepare for various competitive exam Quiz. We can also show transitions on reading any strings in TGs but it is not possible in FA’s. In TG, we may or may not show all letter transitions according to requirement. In every FA, every state shows transition for all letters of given alphabet but in any TG it is not necessary to show all transition for all letters of given alphabet. In every FA, we mark transitions with single letter of the given alphabet but in TG transitions can be marked with letters or strings (combination of letters). Q No.2 What is the difference between FA, TG, GTG. This kind of model is very widely used in the study of computation and languages. The internal states of the machine carry no further structure. In computer science, a finite-state machine (FSM) or finite-state automaton (FSA) is an abstract machine that has only a finite, constant amount of memory. So a * and a + are the generalized form of Languages L 1, L 2.Īnd a * and a + are called the regular expressions (RE) for L 1 and L 2 respectively.Īutomata Theory FAQ’s about Lectures 6 to 10 Q No.1 What is the concept of FA also known as FSM ( Finite State Machine) ?įA (Finite Automaton) is a finite state machine that recognizes a regular language.
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QNo1.What is the difference between the strings and the words of a language? Answer:A string is any combination of the letters of an alphabet where as the words of a language are the strings that are always made according to certain rules used to define that language.For example if we takeĪlphabet Σ = can simply be expressed by a * and a +, respectively.