# Finding Patterns in Text,Algebric Laws and Derivatives Online Exam Quiz

Finding Patterns in Text,Algebric Laws and Derivatives GK Quiz. Question and Answers related to Finding Patterns in Text,Algebric Laws and Derivatives. MCQ (Multiple Choice Questions with answers about Finding Patterns in Text,Algebric Laws and Derivatives

### A CFG is ambiguous if

**Options**

A : It has more than one rightmost derivations

B : It has more than one leftmost derivations

C : No parse tree can be generated for the CFG

D : None of the mentioned

### A CFG is not closed under

**Options**

A : Dot operation

B : Union Operation

C : Concatenation

D : Iteration

### A->aAa|bAb|a|b|e^ Which among the following is the correct option for the given production?

**Options**

A : Left most derivation

B : Right most derivation

C : Recursive Inference

D : None of the mentioned

### Choose the incorrect process to check whether the string belongs to the language of certain variable or not?

**Options**

A : recursive inference

B : derivations

C : head to body method

D : All of the mentioned

### Statement: A digit, when used in the CFG notation, will always be used as a terminal.^ State true or false?

**Options**

A : TRUE

B : FALSE

C : -

D : -

### Statement: Left most derivations are lengthy as compared to Right most derivations.^ Choose the correct option:

**Options**

A : correct statement

B : incorrect statement

C : may or may not be correct

D : depends on the language of the grammar

### Which among the following can be an annihilator for multiplication operation?

**Options**

A : 0

B : 1

C : 100

D : 22/7

### Which of the following are always unambiguous?

**Options**

A : Deterministic Context free grammars

B : Non-Deterministic Regular grammars

C : Context sensitive grammar

D : None of the mentioned

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

**Options**

A : GLR parser

B : Chart parser

C : All of the mentioned

D : None of the mentioned

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

**Options**

A : dangling else problem

B : halting problem

C : maze problem

D : none of the mentioned

### Ambiguous Grammar more Online Exam Quiz

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