# GATE 1989 Question - Marks 2

Total 7 Questions

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ALL GATE QUESTIONS SUBJECTWISE

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## Regular Language and Finite Automata

1 Mark Questions
2 Marks Questions
5 Marks Questions

## Context Free Language and Pushdown Automata

1 Mark Questions
2 Marks Questions
5 Marks Questions

## Contextsensitive Language And Turing Machine

1 Mark Questions
2 Marks Questions
5 Marks Questions

## Undecidability

1 Mark Questions
2 Marks Questions

(a) Membership problem in context free languages.

(b) Whether a given context free language is regular.

(c) Whether a finite state automation on all inputs.

(d) Membership problem for Type 0 language.

Total 7 Questions

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## Correct Option is :

## Explanation

B and D

From the table we can see that it is Undecidable that a CFG is regular or not.

The membership problem of Type(0) language is same as halting problem of turing machine.Which is Undecidable.

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## Send Error Report:

Divide & Conquer

Greedy Method

Dynamic Programming

P & NP Concepts

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