DBMS MCQ Questions and Answers

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Q221
A ___________ is a structure that stores and protects data
  • A Instance
  • B Snapshot
  • C Persistent
  • D Repository
Answer: Option D
Q222
A ___________ is a sequence of database operations.
  • A Instance
  • B Snapshot
  • C Persistent
  • D Transaction
Answer: Option D
Q223
The following is not a level of abstraction
  • A conceptual
  • B view
  • C persistent
  • D internal
Answer: Option C
Q224
The network model uses the concept of
  • A Node
  • B Tree
  • C Queue
  • D Stack
Answer: Option A
Q225
The relation model is truly a_______________ based model
  • A Mathematically
  • B Physically
  • C Chemically
  • D none
Answer: Option A
Q226
What is the language used for queries in RDBMS
  • A Perl
  • B Cobol
  • C SQL
  • D None
Answer: Option C
Q227
The instance of a class used in OO model is
  • A Object
  • B Subject
  • C Structure
  • D Union
Answer: Option A
Q228
State True or false , != ,<>,^= denote the same operation
  • A True
  • B False
  • C Cannot say
  • D None
Answer: Option A
Q229
The data model that is widely accepted and used is
  • A RDBMS
  • B Network model
  • C Hierarchical model
  • D Cannot say
Answer: Option A
Q230
A _________ is a collection of facts
  • A System
  • B Data
  • C Star
  • D None
Answer: Option B

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