
Exploring Finite Automata Concepts
Authored by sobha xavier
Computers
University

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19 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a DFA and how does it differ from an NFA?
A DFA can have multiple transitions for the same state and input symbol, while an NFA has exactly one.
A DFA can only accept regular languages, while an NFA can accept context-free languages.
An NFA is always more efficient than a DFA in terms of memory usage.
A DFA has exactly one transition for each state and input symbol, while an NFA can have multiple transitions for the same state and input.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Describe the process of constructing a DFA from a given regular language.
Use a context-free grammar to create the DFA.
Construct the DFA by manually defining all states and transitions without any algorithm.
Construct a DFA from a regular language by converting its regular expression to an NFA, then using subset construction to create the DFA.
Convert the DFA directly from the regular language without using an NFA.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What are the key steps involved in converting an NFA to a DFA?
Ignore transitions between states
The key steps are: 1. Start with the initial state, 2. Create states for combinations of NFA states, 3. Determine transitions for each input, 4. Mark accepting states, 5. Repeat until complete.
Use only the initial state
Identify only the final states
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Explain the concept of state minimization in DFA.
State minimization in DFA is the process of reducing the number of states by merging equivalent states while preserving the language recognized by the automaton.
State minimization in DFA is the process of eliminating all states regardless of their function.
State minimization in DFA refers to the conversion of a nondeterministic automaton into a deterministic one.
State minimization in DFA involves adding new states to increase complexity.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What techniques can be used to minimize a DFA?
State equivalence checking and partition refinement.
Minimizing by adding more states
Eliminating all transitions
Using random state selection
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How can you determine if two DFAs are equivalent?
Construct the symmetric difference and check for acceptance of strings.
Compare the transition functions of both DFAs directly.
Run both DFAs on a fixed set of strings and compare the results.
Check if both DFAs have the same number of states.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the significance of the subset construction method in NFA to DFA conversion?
It allows for the systematic creation of DFA states that represent combinations of NFA states, ensuring determinism.
It eliminates the need for any state representation in the DFA.
It directly converts NFA transitions into DFA transitions without changes.
It simplifies the NFA by removing unnecessary states.
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