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Published on: 09/11/2020
12th Standard Computer Applications Introduction to Database Management System English Medium Free Online Test 1Mark Questions with Answer Key 2020-2021
Download Tamil Nadu 12th Standard Computer Applications question papers, model tests, one-mark questions, important questions, and public exam papers in PDF format. Free study materials and answer keys for TN State Board students.
Questions + Answers key
Take MCQ Computer Applications Test
1.
A _____ has more than one value for that particular attribute
Multi valued attribute
Simple Attributes
Composite Attributes
Single Valued Attribute
2.
A __________ contains only one value for the attribute and they don't have multiple numbers of values.
Key Attribute
Simple Attributes
Composite Attributes
Single Valued Attribute
3.
_____________ describes a unique characteristic of an entity
Key Attribute
Simple Attributes
Composite Attributes
Single Valued Attribute
4.
An _________ can be anything a real-world object
Data
Entity
Instance
Relationship
5.
A _________ is a "copy" of a primary key
Candidate Key
Super Key
Foreign Key
Composite Key
6.
___________ is defined as the system's ability to recover all committed transactions during the failure of storage or the system
Durability
Consistency
Concurrency
All of the above
7.
DBMS provides to ___________ data
create
retrieve
update
all of the above
8.
Which is the MySQL instance responsible for data processing?
MySQL Client
MySQL Server
SQL
Server Daemon Program
9.
_____ represents a “tuple” in a relational database?
Table
Row
Column
Object
10.
The _____ diagram gives a logical structure of the database graphically?
Entity-Relationship
Entity
Architectural Representation
Database
1.
(a)
Multi valued attribute
2.
(d)
Single Valued Attribute
3.
(a)
Key Attribute
4.
(b)
Entity
5.
(c)
Foreign Key
6.
(a)
Durability
7.
(d)
all of the above
8.
(b)
MySQL Server
9.
(b)
Row
10.
(a)
Entity-Relationship
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Tamilnadu Stateboard 12th Standard Subjects
Maths
Chemistry
Physics
Biology
Computer Science
Business Maths and Statistics
Economics
Commerce
Accountancy
History
Computer Applications
Biology
Computer Technology
Computer Applications
Computer Science
Business Maths and Statistics
Commerce
Economics
Maths
Chemistry
Physics
Computer Technology
History
Accountancy
Tamil
English
French
Tamilnadu Stateboard Standards
