Automata Theory Part E

Create an abstract illustration representing Automata Theory, featuring concepts like context-free grammars, parse trees, and pushdown automata in a visually engaging way.

Explore the Depths of Automata Theory

Test your knowledge and understanding of Automata Theory with our comprehensive quiz. Designed for students and enthusiasts alike, this quiz covers a range of topics, from context-free grammars to pushdown automata.

Join in to discover:

28 thought-provoking questions
Insight into your understanding of CFG and PDA
Challenge yourself and enhance your learning!

28 Questions7 MinutesCreated by LearningTree157

What is the property of trees used in representing the parsing of a statement using a CFG?

They are directed graphs

They are graphs with cycles

They are undirected graphs

They are graphs without cycles

What is the problem with using Λ (the empty string) in a context-free grammar?

It can cause ambiguity

It can generate too many strings

It can slow down parsing algorithms

It can cause errors in the grammar

What is a parse tree in language processing?

A graph representation of a derivation

A graph representation of a context-free grammar

A graph representation of a regular expression

A graph representation of a finite automaton

If G is the grammar S→SbS|a then……….

Is not ambiguous

G is ambiguous

Neither A nor B

Both A & B

A terminal string w∈LG is ambiguous if………

There exist two or more derivation trees for w

It has many branches

there exist two or more leftmost derivations of w

A & C

Grammar that produces more than one Parse tree for same sentence is …….

Ambiguous

Unambiguous

Complementation

Concatenation Intersection

A CFG is ambiguous if …….

It has more than one rightmost derivations

No parse tree can be generated for the CFG

None of the mentioned

It has more than one leftmost derivations

A given grammar is called ambiguous if …….

there is a sentence with more than one derivation tree corresponding to it

Two or more productions have the same non-terminal on the lefthand side

A derivation tree has more than one associated sentence

Brackets are not present in the grammar

A grammar with more than one parse tree is called

Unambiguous

Regular

Ambiguous

Push down grammar

Parsing is categorized into how many types?

2 Types

4Types

3 Types

5 Types

Removing ambiguity by

Eliminate “useless” variables

Eliminate Λ-productions: A→Λ

Eliminate unit productions: A→B

ALL

The transition a Push down automaton makes is additionally dependent upon the:

Stack

Terminals

Input tape

None of the mentioned

A pushdown automaton is a

6-tuple (Q, Σ, Γ, δ, q0, F)

5-tuple (Q, Σ, δ, q0, F)

A&B

None of the above

Which of the following are always unambiguous?

Non-Deterministic Regular grammars

Deterministic Context free grammars

Context sensitive grammar

None of the mentioned

A Pushdown Automata (PDA ) is a DFA equipped with a/an:

Array

Trees

Linked list

Single stack

A PDA is a 6-tuple M = (Q, Σ, Γ, δ, q0, Z0, F ), where Q is:

Finite set of states

The stack alphabet

The input alphabet

None of these

A grammar with more than one parse tree is called:

Unambiguous

Ambiguous

Regular

None

A …………. Is the graph representation of a derivation.

Parse tree

Hash Tables

Parse queue

Linked Lis

�…..grammar is about categorizing the statements of a language

CFG

CLG

CCL

FCG

�……is the graph representation of a derivation

CFG

Parse tree

Non is correct

Parsing

�….. Pushdown Automata (PDA ) is a DFA equipped with a single stack

CFGF

CLG

PDA

NFA

Which of the following is a method for converting a context-free grammar to Chomsky normal form:……….

Eliminating left-recursion and factoring out common prefixes

Splitting each non-terminal symbol into two symbols

Eliminating ε-productions and removing unit productions

Replacing each production rule with an equivalent regular expression.

Parsing can be expressed using a special type of graph called ………

NFA

Trees

Cycle exist

Derivation

A context-free grammar is ambiguous if …. :

It has more than one rightmost derivations

It has more than one leftmost derivations.

No parse tree can be generated for the CFG

None of the mentioned

Which of the following are always unambiguous?

. Deterministic Context free grammar

Context sensitive grammar

. Non- Deterministic Context free grammar.

None of the mentioned

A CFG is not closed under …..

Dot operation

Union operation

Concatenation operation

Iteration operation

Which of the following is an real-world programming language ambiguity?

Dangling else problem

Maze problem.

Halting problem

None of the mentioned

Which of the following is a parser for an ambiguous grammar?

GLR Parser

Both GLR and Chart Parsers

Chart Parsers

None of the mentioned

Automata Theory Part E

Explore the Depths of Automata Theory

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