Concurrency Control Theory Quiz
5 Questions
1 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the purpose of CONCURRENCY CONTROL in database management?

  • To prioritize certain transactions over others.
  • To speed up the execution of transactions.
  • To allow all transactions to access and modify the database simultaneously.
  • To enforce isolation (through mutual exclusion) among conflicting transactions. (correct)

    • Which best describes a transaction in a DBMS?

  • A single operation on a database.
  • The execution of a sequence of one or more operations on a database to perform some higher-level function. (correct)
  • An isolated query on a database.
  • A group of unrelated operations on a database.

    • What happens in the Strawman System when a transaction arrives at the DBMS?

  • The DBMS allows all transactions to run simultaneously.
  • The DBMS randomly selects which transaction to execute first.
  • The DBMS executes each transaction one-by-one in a serial order. (correct)
  • The DBMS rejects the transaction.

    • Why are partial transactions not allowed in a DBMS?

    <p>To maintain the atomicity and consistency of transactions.</p> Signup and view all the answers

    What is the basic unit of change in a DBMS?

    <p>$Transactions$</p> Signup and view all the answers

    More Like This

    Use Quizgecko on...
    Browser
    Open
    Browser
    Browser