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Database Systems Competitive Exam MCQs – Practice Test 5 (Chapter 3)

Concurrency Control MCQs with Answers PDF Download – Test 5

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The Concurrency Control Multiple Choice Questions (MCQs) with Answers PDF (Concurrency Control MCQs PDF e-Book) download Ch. 3-5 to study Database Systems Course. Practice Deadlock Handling MCQs, Concurrency Control Notes questions and answers PDF for top online computer science programs. Download the Database Systems MCQs App: Free Concurrency Control MCQs App to study concurrency in index structures, multiple granularity locking, lock based protocols career test to study e-learning courses.

The MCQ: Deadlock recovery is possible by using the scheme(s); "Database Systems MCQs" App Download [Free] with answers: deadlock detection, deadlock recovery, and deadlock elimination to study e-learning courses. Solve Database Languages Quiz Questions, download Google e-Book (Free Chapter) for online computer science engineering.

Concurrency Control MCQs – Practice Test 5 PDF Download

MCQ: 21

Deadlock recovery is possible by using the scheme(s)

  1. Deadlock recovery
  2. Deadlock detection
  3. Deadlock elimination
  4. Both A and B
MCQ: 22

For controlling preemption, each transaction can be assigned a unique

  1. Order
  2. Identifier
  3. Locator
  4. Timestamp
MCQ: 23

A protocol that permits a transaction to lock a new data item only if it has not yet unlocked any data item, is called

  1. Two-phase unlocking protocol
  2. One-phase locking protocol
  3. Two-phase locking protocol
  4. One-phase unlocking protocol
MCQ: 24

A time stamp-ordering scheme ensures

  1. Serializability
  2. Cascading
  3. Atomicity
  4. Consistency
MCQ: 25

The data item may be locked by

  1. 2 modes
  2. 3 modes
  3. 4 modes
  4. 5 modes

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