12th Computer Science - Book Back Answers - Chapter 11 - English Medium Guides

 

 

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Tamil Nadu Board 12th Standard Computer Science - Chapter 11: Book Back Answers and Solutions

    This post covers the book back answers and solutions for Chapter 11 from the Tamil Nadu State Board 12th Standard Computer Science textbook. These detailed answers have been carefully prepared by our expert teachers at KalviTips.com.

    We have explained each answer in a simple, easy-to-understand format, highlighting important points step by step under the relevant subtopics. Students are advised to read and memorize these subtopics thoroughly. Once you understand the main concepts, you’ll be able to connect other related points with real-life examples and confidently present them in your tests and exams.

    By going through this material, you’ll gain a strong understanding of Chapter 11 along with the corresponding book back questions and answers (PDF format).

Question Types Covered:

• 1 Mark Questions: Choose the correct answer, Fill in the blanks, Identify the correct statement, Match the following 
• 2 Mark Questions: Answer briefly 
• 3, 4, and 5 Mark Questions: Answer in detail

All answers are presented in a clear and student-friendly manner, focusing on key points to help you score full marks.

All the best, Class 12 students! Prepare well and aim for top scores. Thank you!

Chapter 11: Database Concepts

I. Choose the correct answer.

1. What is the acronym of DBMS?
a) DataBase Management Symbol
b) Database Managing System
c) DataBase Management System
d) DataBasic Management System
Answer Key:
c) DataBase Management System

2. A table is known as
a) tuple
b) attribute
c) relation
d) entity
Answer Key:
c) relation

3. Which database model represents parent-child relationship?
a) Relational
b) Network
c) Hierarchical
d) Object
Answer Key:
c) Hierarchical

4. Relational database model was first proposed by
a) E F Codd
b) E E Codd
c) E F Cadd
d) E F Codder
Answer Key:
a) E F Codd

5. What type of relationship does hierarchical model represents?
a) one-to-one
b) one-to-many
c) many-to-one
d) many-to-many
Answer Key:
b) one-to-many

6. Who is called Father of Relational Database from the following?
a) Chris Date
b) Hugh Darween
c) Edgar Frank Codd
d) Edgar Frank Cadd
Answer Key:
c) Edgar Frank Codd

7. Which of the following is an RDBMS?
a) Dbase
b) Foxpro
c) Microsoft Access
d) Microsoft Excel
Answer Key:
d) Microsoft Excel

8. What symbol is used for SELECT statement?
a) σ
b) Π
c) X
d) Ω
Answer Key:
a) σ

9. A tuple is also known as
a) table
b) row
c) attribute
d) field
Answer Key:
a) table

10. Who developed ER model?
a) Chen
b) EF Codd
c) Chend
d) Chand
Answer Key:
a) Chen

II.Answer the following questions.

12th Computer Science (soon)

III. Answer the following questions.

12th Computer Science (Soon)

IV. Answer the following questions.

12th Computer Science (Soon)