Database Systems MCQs (Computer Science) From Textbook

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Database Systems MCQs – Practice Test 8 (Chapter 3)

Concurrency Control Notes Questions with Answers PDF Download – Test 8

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The MCQ: A way of guarding against deadlock prevention is to; "Database Systems Notes" App APK Download with answers: order the execution, order data items, order access, and order cascading to study SQL certification courses. Practice Concurrency Control Concept in DBMS Quiz Questions, download Kobo e-Book (Free Chapter) to study SQL certification courses.

Concurrency Control MCQs – Practice Test 8 PDF Download

MCQ: 36

A way of guarding against deadlock prevention is to

  1. Order data items
  2. Order the execution
  3. Order access
  4. Order cascading
MCQ: 37

Serializability can be ensured by the two-phase locking protocol but not

  1. Unlocking freedom
  2. Locking freedom
  3. Deadlock freedom
  4. Access freedom
MCQ: 38

A protocol that requires that each transaction must issue lock and unlock requests in two phases, is called

  1. Bi-lock locking protocol
  2. Two-phase locking protocol
  3. Two-level locking protocol
  4. Lock-point locking protocol
MCQ: 39

To ensure deadlock prevention, we can use the preemption approach and

  1. Rollbacks
  2. Timestamping
  3. Cascading
  4. Validating
MCQ: 40

A write operation in multiversion timestamp ordering, may result into the

  1. Abortion of transaction
  2. Termination of transaction
  3. Rollback of transaction
  4. Waiting of transaction

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