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TN 12th Computer Applications மின் - வணிகம் Sample Question Papers Study Material - QB365 Set A
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TN 12th Computer Applications திறந்த மூல கருத்துருக்கள் Sample Question Papers Study Material - QB365 Set A
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Published on: 05/11/2020
12th Standard Computer Science Database Concepts English Medium Free Online Test One Mark Questions 2020 - 2021
Download Tamil Nadu 12th Standard Computer Science 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 Science Test
1.
Which of the following data model handles Geographic Information System?
Object
ER model
Relational
None of these
2.
How many types of data models are there?
4
3
5
7
3.
Match the following
| i) | Hardware | 1) | It is a resource for which DBMS is designed |
| ii) | Square | 2) | Used to write commands |
| iii) | Data | 3) | Physical components involved in data storage |
| iv) | Procedures a | 4) | Manage databases to take backups |
| v) | Database Access language | 5) | A program that controls everything |
3, 5, 1, 4, 2
5, 3, 1, 4, 2
3, 5, 4, 1,2
3, 5, 1, 2, 4
4.
Which of the following characteristics of DBMS become a challenge?
Data redundancy
Data security
Data consistency
Data integrity
5.
Which of the following can be a software or hardware based, with one sole purpose of storiing data?
DBMS
Database
Object
SQL
6.
Which of the following a data contain?
Character
text
Word
Number
All of these
7.
Which of the following is an organized collection of data?
Word Processor
Spreadsheet
Programming language
Database
8.
What type of relationship does hierarchical model represents?
one-to-one
one-to-many
many-to-one
many-to-many
9.
Which database model represents parent-child relationship?
Relational
Network
Hierarchical
Object
10.
What is the acronym of DBMS?
DataBase Management Symbol
Database Managing System
DataBase Management System
DataBasic Management System
1.
(a)
Object
2.
(c)
5
3.
(a)
3, 5, 1, 4, 2
4.
(c)
Data consistency
5.
(b)
Database
6.
(e)
All of these
7.
(d)
Database
8.
(b)
one-to-many
9.
(c)
Hierarchical
10.
(c)
DataBase Management System
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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
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