Theory of Automata MCQs with Answers
Practice important Theory of Automata MCQs with answers and explanations.
Multiple Choice Questions
Q511: In the context of PDA, what does "joint consistent" mean?
- A: The rows meet end to end without any gaps
- B: The rows are read from the TAPE in order
- C: The rows are STACK consistent
- D: The rows are randomly ordered
View Answer
A
Q512: How does a row sequence like Row5 Row5 Row3 Row6 relate to the row language?
- A: It does not represent a valid path if it is not joint consistent or STACK consistent
- B: It always represents a valid path
- C: It is always joint consistent
- D: It is always STACK consistent
View Answer
A
Q513: What must be defined before determining the CFG that generates the language accepted by a PDA?
- A: The CFG that generates the row language
- B: The summary table of the PDA
- C: The list of ACCEPT states
- D: The list of REJECT states
View Answer
A
Q514: What does a valid path in the row language start and end with?
- A: It starts with Row1 and ends with Row7
- B: It starts with any row and ends with Row1
- C: It starts with Row7 and ends with Row1
- D: It starts with Row2 and ends with Row6
View Answer
A
Q515: How are joints in a PDA path described?
- A: They include START, READ, HERE, and ACCEPT states
- B: They include only READ and HERE states
- C: They include only START and ACCEPT states
- D: They are randomly placed
View Answer
A
Q516: What is a key characteristic of a PDA's path in the conversion form?
- A: Each path segment includes exactly one character popped and any number of characters pushed
- B: Each path segment includes multiple characters popped and no characters pushed
- C: Each path segment includes no characters popped
- D: Each path segment includes multiple characters pushed and no characters popped
View Answer
A
Q517: What is the alphabet of the Row language in Chapter 15?
- A: {Row1, Row2, …, Row7}
- B: {Row1, Row2, …, Row6}
- C: {Row1, Row2, …, Row8}
- D: {Row1, Row2, …, Row5}
View Answer
A
Q518: What does the nonterminal Net(X, Y, Z) represent in the context of the Row language?
- A: The net STACK effect between two joints
- B: The starting state of a PDA
- C: The acceptance condition of a PDA
- D: The termination state of a CFG
View Answer
B
Q519: In a PDA conversion form, how many ACCEPT states are allowed?
- A: None
- B: One
- C: Two
- D: Three
View Answer
B
Q520: What is required to be true for a PDA to be considered in conversion form regarding POP states?
- A: No POP state should exist
- B: POP states can follow each other without any READ or HERE in between
- C: POP states must be separated by READs or HEREs
- D: POP states must be immediately preceded by PUSH states
View Answer
C