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The MCQ: Responsibility of the database administrator includes; "Database Systems" App (iOS, Android) with answers: structure database, authorize users, and restructure database for online computer science and engineering. Study SQL Queries Interview Questions Questions and Answers, Apple Book to download free chapter for top computer science schools.

Database Authorization MCQs – Mock Test 39 PDF Download

MCQ 191: The responsibility of the database administrator includes:

  1. Authorize users
  2. Structure database
  3. Restructure database
  4. All of the Above

MCQ 192: Scalar subqueries can occur in:

  1. Select clause
  2. From clause
  3. Where clause
  4. All of the Above

MCQ 193: The result of Boolean expression 'true and unknown' is:

  1. True
  2. False
  3. Unknown
  4. Null

MCQ 194: The rigorous two-phase locking protocol permits releasing all locks at the:

  1. Beginning of transaction
  2. During execution of transaction
  3. End of transaction
  4. Never in the life-time of transaction

MCQ 195: Process of verifying credentials and allowing access to the database, is called its:

  1. Database isolation
  2. Database authentication
  3. Database application
  4. Database administration

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