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Database Systems Practice Test 75

Aggregate Functions Quiz Questions with Answers PDF - 75

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Aggregate Functions Trivia Questions PDF Download: Quiz 75

MCQ 371: Aggregate functions are functions that take a set or multiset of values as input and return

A) Single value
B) Multiple sets
C) Multiple attributes
D) A relation

MCQ 372: The indexing technique should perform the types of access that are supported

A) Efficiently
B) Minimum
C) Maximum
D) Specifically

MCQ 373: A two-phase locking protocol variant that requires that all locks be held until the transaction commit is called

A) Lock-point two-phase locking protocol
B) Deadlock two-phase locking protocol
C) Strict two-phase locking protocol
D) Rigorous two-phase locking protocol

MCQ 374: The operations of Natural-join are

A) Commutative
B) Associative
C) Distributive
D) Conjunctive

MCQ 375: Ensuring enough free disk space availability for normal operations, are goals to be achieved by

A) Database Manager
B) Database system
C) Database administrator
D) Database users

Database Systems Exam Prep Tests

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