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Database Systems Entrance Exam: Practice Test 6 (Chapter 6)

Database Recovery System Multiple Choice Questions (MCQ) PDF Download - 6

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The MCQs: The field of update log record that defines the unique identifier of the transaction is known as; "Database Recovery System" App (Android, iOS) with answers: old value identifier, data-item identifier, transaction identifier, and new value identifier for online computer science programs. Practice Concurrency Control Concept in DBMS Quiz Questions, download Apple Book (Free Chapter) for online computer engineering programs.

Database Recovery System MCQ with Answers PDF Download: Quiz 6

MCQ: 26

The field of update log record that defines the unique identifier of the transaction is known as

  1. Data-item identifier
  2. Old value identifier
  3. Transaction identifier
  4. New value identifier
MCQ: 27

Transaction processing is based on a

  1. Validation model
  2. Recovery model
  3. Storage model
  4. Network model
MCQ: 28

The log is a sequence of

  1. Log groups
  2. Log records
  3. Log files
  4. Log units
MCQ: 29

A configuration that can takeover by the backup site almost instantaneous is known as

  1. Hot-spare
  2. Time to commit
  3. One-safe
  4. Two-safe
MCQ: 30

The unique identifier field in the update log record that performs the write operation is called

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

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