Recovery and Atomicity MCQs & Quiz Online PDF Book Download

Recovery and atomicity MCQs, recovery and atomicity quiz answers to learn data analytics courses online. Database recovery system multiple choice questions (MCQs), recovery and atomicity quiz questions and answers for software developer degree online. Algorithms for recovery and isolation exploiting semantics, buffer management, failure classification in dbms, dbms failure classification, recovery and atomicity test prep for data science certification.

Learn database recovery system test MCQs: unique identifier field in update log record in which data item is written is called, with choices transaction identifier, new value identifier, data-item identi?er, and data-value identi?er for software developer degree online. Practice assessment test for scholarships, online learning recovery and atomicity quiz questions for competitive assessment in computer science major for big data certification.

MCQ on Recovery and Atomicity Quiz Book Download

MCQ: Unique identifier field in update log record in which data item is written is called

  1. Transaction identifier
  2. New value identifier
  3. Data-item identi?er
  4. Data-value identi?er

C

MCQ: Log record type that describes a single database write is known as

  1. Transaction log record
  2. Write log record
  3. Read log record
  4. Update log record

D

MCQ: Number of fields in an update log record are

  1. 3
  2. 4
  3. 5
  4. 6

B

MCQ: Field of update log record that defines unique identi?er of transaction is known as

  1. Data-item identi?er
  2. Old value identifier
  3. Transaction identifier
  4. New value identifier

C

MCQ: Unique identifier field in update log record that performs write operation is called

  1. Data-item identi?er
  2. Transaction identifier
  3. Data-value identi?er
  4. New value identifier

B