Database Systems MCQs (Computer Science) From Textbook

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Database Systems Exam MCQs – Practice Test 4 (Chapter 3)

Concurrency Control Notes Questions with Answers PDF Download – Test 4

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The Concurrency Control Notes Questions and Answers PDF (Concurrency Control Quiz Answers PDF e-Book) download Ch. 3-4 to learn Database Systems Course. Solve Concurrency in Index Structures MCQs, Concurrency Control MCQs questions and answers PDF to study online certification courses. Download the Concurrency Control Notes App: Free Database Systems Notes App to learn lock based protocols, multiple granularity locking career test for bachelor's degree in computer science.

The MCQ: In preemption technique, transactions are assigned a unique timestamp to decide whether it should wait or; "Concurrency Control Notes" App APK Download with answers: committed, executed, aborted, and rolled back to study online certification courses. Practice Aggregate Functions Quiz Questions, download Kobo e-Book (Free Chapter) to study online certification courses.

Concurrency Control MCQs – Practice Test 4 PDF Download

MCQ: 16

In preemption technique, transactions are assigned a unique timestamp to decide whether it should wait or

  1. Executed
  2. Committed
  3. Aborted
  4. Rolled back
MCQ: 17

Snapshot isolation is a scheme of

  1. Multiversion concurrency-control
  2. Multiversion two-phase locking
  3. Multiversion timestamp ordering
  4. Multiversion one-phase locking
MCQ: 18

The two modes of locking a data item, are termed as 'shared' and

  1. Composite
  2. Compatible
  3. Exclusive
  4. Linear
MCQ: 19

Two-phase locking does not ensure freedom from

  1. Obtain locks
  2. Release locks
  3. New locks
  4. Deadlocks
MCQ: 20

A set of rules applied over a transaction that may lock and unlock each of the data items in the database, is known to be

  1. Unlocking protocol
  2. Locking protocol
  3. Deadlock protocol
  4. Validation protocol

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Concurrency Control Notes Apps (Android & iOS)

Concurrency Control Notes App

DataBase Management System (MCS) Notes Apps (iOS & Android)

DataBase Management System (MCS) Notes App

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General Knowledge Notes App

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