Computer Science Engineering (CSE) Exam > Computer Science Engineering (CSE) Questions > A language accepted by Deterministic Push dow...
Start Learning for Free
A language accepted by Deterministic Push down automata is closed under which of the following?
- a)Complement
- b)Union
- c)Both (a) and (b)
- d)None of the mentioned
Correct answer is option 'A'. Can you explain this answer?
| FREE This question is part of | Download PDF Attempt this Test |
Verified Answer
A language accepted by Deterministic Push down automata is closed unde...
Deterministic Context free languages(one accepted by PDA by final state), are drastically different from the context free languages. For example they are closed under complementation and not union.
Most Upvoted Answer
A language accepted by Deterministic Push down automata is closed unde...
Deterministic Pushdown Automata
A deterministic pushdown automaton (DPDA) is a type of automaton that is used to recognize languages generated by context-free grammars. It is similar to a deterministic finite automaton (DFA), but with an added stack that allows it to handle context-free languages.
Closure Properties of Languages
Closure properties of languages refer to the properties that are preserved under certain operations on languages. For example, if a language L is closed under the complement operation, it means that if L is a language, then its complement, denoted as L', is also a language.
Complement of a Language
The complement of a language L, denoted as L', is the set of all strings that are not in L. In other words, if a string is in L, it is not in L', and vice versa.
Closure under Complement
The closure under complement property states that if a language is accepted by a certain type of automaton, then its complement is also accepted by the same type of automaton.
Closure of Languages Accepted by DPDA
The closure properties of languages accepted by deterministic pushdown automata (DPDA) are as follows:
- Complement: The language accepted by a DPDA is closed under the complement operation. This means that if a language L is accepted by a DPDA, then its complement L' is also accepted by a DPDA.
- Union: The language accepted by a DPDA is not closed under the union operation. This means that if two languages L1 and L2 are accepted by DPDA, their union L1 ∪ L2 may not be accepted by a DPDA.
Explanation
The correct answer is option A, which states that the language accepted by a DPDA is closed under the complement operation. This means that if a language L is accepted by a DPDA, then its complement L' is also accepted by a DPDA. In other words, if a DPDA can recognize a language, it can also recognize its complement.
However, the language accepted by a DPDA is not closed under the union operation. This means that if two languages L1 and L2 are accepted by DPDA, their union L1 ∪ L2 may not be accepted by a DPDA. The union of two languages accepted by a DPDA may require a more powerful computational model, such as a non-deterministic pushdown automaton (NPDA) or a Turing machine, to recognize.
Therefore, the correct answer is option A, as the language accepted by a DPDA is closed under the complement operation but not under the union operation.
Attention Computer Science Engineering (CSE) Students!
To make sure you are not studying endlessly, EduRev has designed Computer Science Engineering (CSE) study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in Computer Science Engineering (CSE).
|
Explore Courses for Computer Science Engineering (CSE) exam
|
|
Similar Computer Science Engineering (CSE) Doubts
Top Courses for Computer Science Engineering (CSE)View all
A language accepted by Deterministic Push down automata is closed under which of the following?a)Complementb)Unionc)Both (a) and (b)d)None of the mentionedCorrect answer is option 'A'. Can you explain this answer?
Question Description
A language accepted by Deterministic Push down automata is closed under which of the following?a)Complementb)Unionc)Both (a) and (b)d)None of the mentionedCorrect answer is option 'A'. Can you explain this answer? for Computer Science Engineering (CSE) 2024 is part of Computer Science Engineering (CSE) preparation. The Question and answers have been prepared according to the Computer Science Engineering (CSE) exam syllabus. Information about A language accepted by Deterministic Push down automata is closed under which of the following?a)Complementb)Unionc)Both (a) and (b)d)None of the mentionedCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Computer Science Engineering (CSE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A language accepted by Deterministic Push down automata is closed under which of the following?a)Complementb)Unionc)Both (a) and (b)d)None of the mentionedCorrect answer is option 'A'. Can you explain this answer?.
A language accepted by Deterministic Push down automata is closed under which of the following?a)Complementb)Unionc)Both (a) and (b)d)None of the mentionedCorrect answer is option 'A'. Can you explain this answer? for Computer Science Engineering (CSE) 2024 is part of Computer Science Engineering (CSE) preparation. The Question and answers have been prepared according to the Computer Science Engineering (CSE) exam syllabus. Information about A language accepted by Deterministic Push down automata is closed under which of the following?a)Complementb)Unionc)Both (a) and (b)d)None of the mentionedCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Computer Science Engineering (CSE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A language accepted by Deterministic Push down automata is closed under which of the following?a)Complementb)Unionc)Both (a) and (b)d)None of the mentionedCorrect answer is option 'A'. Can you explain this answer?.
Solutions for A language accepted by Deterministic Push down automata is closed under which of the following?a)Complementb)Unionc)Both (a) and (b)d)None of the mentionedCorrect answer is option 'A'. Can you explain this answer? in English & in Hindi are available as part of our courses for Computer Science Engineering (CSE).
Download more important topics, notes, lectures and mock test series for Computer Science Engineering (CSE) Exam by signing up for free.
Here you can find the meaning of A language accepted by Deterministic Push down automata is closed under which of the following?a)Complementb)Unionc)Both (a) and (b)d)None of the mentionedCorrect answer is option 'A'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
A language accepted by Deterministic Push down automata is closed under which of the following?a)Complementb)Unionc)Both (a) and (b)d)None of the mentionedCorrect answer is option 'A'. Can you explain this answer?, a detailed solution for A language accepted by Deterministic Push down automata is closed under which of the following?a)Complementb)Unionc)Both (a) and (b)d)None of the mentionedCorrect answer is option 'A'. Can you explain this answer? has been provided alongside types of A language accepted by Deterministic Push down automata is closed under which of the following?a)Complementb)Unionc)Both (a) and (b)d)None of the mentionedCorrect answer is option 'A'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice A language accepted by Deterministic Push down automata is closed under which of the following?a)Complementb)Unionc)Both (a) and (b)d)None of the mentionedCorrect answer is option 'A'. Can you explain this answer? tests, examples and also practice Computer Science Engineering (CSE) tests.
|
|
Explore Courses for Computer Science Engineering (CSE) exam
|
|
Suggested Free Tests
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup