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Modification of Database Trivia Questions and Answers PDF Download eBook p. 242

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Modification of Database Questions and Answers PDF Download eBook

Modification of Database Quiz

MCQ: To insert data into a relation, we specify a tuple to be

  1. Retrieved
  2. Processed
  3. Tested
  4. Inserted

D

Multiple Granularity Locking Quiz

MCQ: 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

C

Entity Relationship Diagrams Quiz

MCQ: The first part, which is the upper half of the rectangle, contains the name of

  1. All attributes
  2. Entity set
  3. Schema
  4. Domain

B

Algebra Operations in DBMS Quiz

MCQ: The aggregate function that returns the number of the elements in the collection is known as

  1. total
  2. count
  3. whole
  4. combine

B

Overview of Storage Structure Quiz

MCQ: The rolling back of any transaction takes place at the stage of

  1. Partially committed
  2. Aborted
  3. Active
  4. Committed

B