Aggregate Functions Quiz Questions and Answers 75 PDF Download

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Quiz on Aggregate Functions Worksheet 75 Quiz PDF Download

Aggregate Functions Quiz

MCQ: Aggregate functions are functions that take a set or multiset of values as input and return

  1. Single value
  2. Multiple sets
  3. Multiple attributes
  4. A relation


Indexing in DBMS Quiz

MCQ: Indexing technique should perform types of access that are supported

  1. Efficiently
  2. Minimum
  3. Maximum
  4. Specifically


Lock Based Protocols Quiz

MCQ: A two-phase locking protocol variant that requires that all locks be held until transaction commit is called

  1. Lock-point two-phase locking protocol
  2. Deadlock two-phase locking protocol
  3. Strict two-phase locking protocol
  4. Rigorous two-phase locking protocol


Transformation of Relational Expressions Quiz

MCQ: Operations of Natural-join are

  1. Commutative
  2. Associative
  3. Distributive
  4. Conjunctive


Database Users and Administrators Quiz

MCQ: Ensuring enough free disk space availability for normal operations, are goals to be achieved by

  1. Database Manager
  2. Database system
  3. Database administrator
  4. Database users