Practice Question Finite State Machine

Duration: 1 min

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  1. About Course: About the Course
  2. Paper 1 | General Studies: State Wise GK
  3. Paper 1 | Information and Communication Technology: Role of Internet and Web Services, Security in Mobile and Wireless Computing
  4. Paper 1 | Current Affairs: GK- Current Affairs
  5. Paper 2 | Discrete Mathematical Structure: Digital Systems & Boolean Basics, Logic Gates & Hardware, Boolean Expression, Boolean Minimization, Set Theory, Relations, Functions, Graph Theory, Group Theory, Propositional and Predicate Logic, Probability
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  13. Paper 2 | Compiler Design: Intro to Compilers, Lexical Analysis, Grammar & CFG, Syntax Analysis: Top-Down, Syntax Analysis: Bottom-Up, Semantic Analysis & SDT, Intermediate Code Gen, Code Optimization, Run Time Environment
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  18. Paper 2 | Full Length Mock Tests:
AI summary & chapters

AI Summary

An AI-generated summary of this video lecture.

The video features an educational segment analyzing a Finite State Machine (FSM) problem. The question asks what language the FSM accepts over the alphabet {a, b}. The diagram shows a single state labeled $q_0$ with an incoming arrow indicating it is the start state. A self-loop connects $q_0$ to itself, labeled with "a, b". The instructor highlights a critical detail: the state $q_0$ is a single circle, not a double circle. In standard FSM notation, a double circle denotes an accepting state. Since no state is marked as accepting, the machine accepts no strings. The slide also displays the text 'SANCHIT JAIN SIR'.

Chapters

  1. 0:00 – 0:42 00:00-00:42

    The instructor begins by reading the question text: "The FSM over an alphabet {a, b} shown in the figure accepts". He points to the diagram, identifying the single node $q_0$ as the start state. He explains the self-loop transition labeled "a, b". He then draws attention to the fact that there is no double circle around the state. He explains that without a final state, the set of accepted strings is empty. He explicitly selects option (b) "no stings" from the list provided on the screen, which includes options like "all stings" and "$\epsilon$ - alone". The options are listed as a, b, c, and d.

This short clip effectively teaches the importance of final states in automata theory. By visually inspecting the diagram for the specific symbol (double circle) that denotes acceptance, the student learns to determine the language accepted by the machine. The absence of this symbol leads directly to the conclusion that the language is empty. This reinforces the standard convention used in computer science education.

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