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Automata Theory and Formal Language

Showing 226-246 of 246 answers

What is an undecidable problem?
  • When a TM cannot make a decision on an instance of the problem Correct
  • When a CFG cannot make a decision on an instance of the problem
  • When a PDA cannot make a decision on an instance of the problem
  • When a RE cannot make a decision on an instance of the problem
What is an ε-NFA?
  • It is a DFA where all transitions are ε-transitions
  • It is an NFA where all transitions are ε-transitions
  • It is a DFA with at least one explicit ε-transition defined
  • It is an NFA with at least one explicit ε-transition defined Correct
What is automata theory?
  • To answer the fundamental questions in computer science
  • All of the choices Correct
  • To find out if a problem is computable
  • Study of abstract computing devices or machines
What is the final result after converting the following NFA-ε to NFA without Null move.
  • What is the final result after converting the following NFA-ε to NFA without Null move. Correct
What kind of languages does a TM decide?
  • regular expression
  • context-sensitive
  • recursively enumerable Correct
  • context-free
Which among the following cannot be accepted by a regular grammar?
  • L is a set of 0n1n Correct
Which among the following is not a part of the Context free grammar tuple?
  • End SymbolCorre Correct
Which among the following is the correct option for the given grammar? G->X111|G1,X->X0|00.
  • {0a1b|a=2,b=3} Correct
Which among the following is the option for the given grammar? G->X111|G1,X->X0|00
  • {0a1b|a=2,b=3} Correct
Which of the following is a not a part of 5-tuple finite automata?
  • Output Alphabet Correct
Which of the following Set Operations produces the set that contains everything that is in Set A and in Set B?
  • Complement
  • Union Correct
  • Intersection
  • Set Difference
Which of the following statement is false in context of tree terminology?
  • Root with no children is called a leaf Correct
Which of the following statements are correct for a concept called inherent ambiguity in CFL?
  • Every CFG for L is ambiguous Correct
Which of the following statements are for a concept called inherent ambiguity in CFL?
  • Every CFG for L is ambiguous Correct
Which of the following statements is true about NPDA, DPDA, and RL?
  • RL • DPDA • NPDA
  • RL* • DPDA* • NPDA*
  • RL ⊃ DPDA ⊃ NPDA
  • RL ⊂ DPDA ⊂ NPDA Correct
Which of the following ways can be done to simplify a CFG?
  • Eliminate symbols that are not useful
  • Eliminate the ε symbol
  • Eliminate productions of the form A → B Correct
  • Eliminate productions of the form A → b
Which of the following will not be accepted by the following DFA?
  • ababaabaa Correct
Which one is the answer?
  • Computer Correct
Who is the father of modern computer science?
  • Noam Chomsky
  • Alan Turing Correct
  • Steve Jobs
  • Bill Gates
Who is the father of modern computer?
  • Charles Babbage Correct
Z2 uses electricity to convey letters and transmit information quickly in 1844.
  • TRUE Correct
This course is taught by the mentor:
Professor Paul Jacob Cruz

Paul Jacob Cruz

Master of Science in Computer Science.

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