Samacheer Kalvi Class 12th DBMS Questions for Class 12 - 1
Question: 1
Which is the MySQL instance responsible for data processing?
(A) MySQL Client
(B) SQL
(C) MySQL Server
(D) Server Daemon Program
Ans: C
MySQL Server
Question: 2
Expand ODBMS.
(A) Objective Database Management System
(B) Object Oriented Database Management System
(C) Objective Database Management System
(D) Object Database Management System
Ans: D
Object Database Management System
Question: 3
Expand DBMS.
(A) Database Manipulation Schema
(B) Database Management System
(C) Data Manipulation Schema
(D) Database Management Schema
Ans: B
Database Management System
Question: 4
Expand RDBMS.
(A) Relational Database Manipulation System
(B) Relational Database Management System
(C) Record Database Managing Schema
(D) Relational Database Manipulation System
Ans: B
Relational Database Management System
Question: 6
Which of the two databases models are similar?
(A) Relational, Object oreinted
(B) Network, Object oreinted
(C) Network, relational
(D) Hierarchical, Network
Ans: D
Hierarchical, Network
Question: 7
Each super key is called as _____ key.
(A) Candidate
(B) Constraint
(C) Schema
(D) Sub
Ans: A
Candidate
Question: 8
_____ and ______ are the commercial relational database models.
(A) Oracle, IBME
(B) DB2, IDS
(C) IDS, IMS
(D) Oracle, DB2
Ans:D
Oracle, DB2
Question: 9
What is the another name for Candidate Key?
(A) Minimal super key
(B) Maximal super key
(C) Super key
(D) Sub key
Ans: A
Minimal super key
Question: 10
The _____ diagram gives a logical structure of the database graphically?
(A) Database
(B) Architectural Representation
(C) Entity
(D) Entity Relationship
Ans: D
Entity Relationship
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