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Database Systems MCQs – Mock Test 426

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Free Database Languages MCQ App Download (Android & iOS): "Database systems implement constraints that can be tested with minimal overhead, known as"; MCQ with answers: declaration constraints, integrity constraints, definition constraints, and consistency constraints. Practice Introduction to DBMS Questions and Answers, Google Book to download free chapter for DBMS self paced.

Database Languages MCQs – Mock Test 426 PDF Download

MCQ 2126: Database systems implement constraints that can be tested with minimal overhead, known as:

  1. Integrity Constraints
  2. Declaration Constraints
  3. Consistency Constraints
  4. Definition Constraints

MCQ 2127: We can drop schemas by means of:

  1. Drop schema
  2. Define schema
  3. Delete schema
  4. Alter schema

MCQ 2128: If a transaction manages to persist the database modifications despite of the system failures, it defines the:

  1. Consistency
  2. Reliability
  3. Durability
  4. Quality

MCQ 2129: The authorization type which allows deletion of data, Is known as:

  1. Insert Authorization
  2. Delete Authorization
  3. Read Authorization
  4. Update Authorization

MCQ 2130: Occurrence of deadlock is an example of:

  1. Application error
  2. System crash
  3. Logical error
  4. System error

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