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SEBA class 10 IT Chapter 8 Answer 2026 Assamese Medium (SCERT Assam board) | Introduction to Database Management System|

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SEBA class 10 IT Chapter 8 Answer 2026 Assamese Medium (SCERT Assam board) | Introduction to Database Management System|

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Introduction to Database Management System

1. What is a Database Management System (DBMS)?&nbsp;(Database Management System (DBMS) কি?)Answer:&nbsp;A DBMS is software that allows users to create, store, manage, and retrieve data efficiently.&nbsp;It organizes data in a structured format and provides tools for data manipulation.

(DBMS হল এটা সফ্টৱেয়াৰ যি ডাটা সংৰক্ষণ, ব্যৱস্থাপনা, আৰু পুনৰুদ্ধাৰ কৰিবলৈ সহায় কৰে।)2. What is the difference between a Database and a DBMS?&nbsp;(Database আৰু DBMS-ৰ মাজত পাৰ্থক্য কি?)Answer:&nbsp;Database: A collection of related data stored together.DBMS: Software used to manage and access the database.

(Database হল ডাটাৰ সমাহাৰ, DBMS হল ডাটা ব্যৱস্থাপনা কৰাৰ বাবে ব্যৱহৃত সফ্টৱেয়াৰ।)3. What are the advantages of using a DBMS?&nbsp;(DBMS ব্যৱহাৰৰ সুবিধা কি?)Answer:&nbsp;Reduces data redundancy.Ensures data consistency.Provides data security and integrity.Allows multiple users to access data simultaneously.

(DBMS-এ ডাটা পুনৰাবৃত্তি কমায়, ডাটা নিৰ্ভুলতা ৰাখে, আৰু ডাটা সুৰক্ষিত ৰাখে।)

4. What is a table in a DBMS?(DBMS-ত Table কি?)Answer:&nbsp;A table is a collection of rows and columns that store related data.Each row is called a record and each column is called a field.

(Table হল Row আৰু Column-এৰে গঠিত ডাটাৰ সংৰক্ষণ স্থান।)5. What is a primary key?&nbsp;(Primary Key কি?)Answer:&nbsp;A primary key is a unique identifier for each record in a table.It ensures that no two rows have the same value in the key field.

(Primary Key হল এটা Table-ৰ বিশেষ চিনাক্তকৰণ যি প্ৰতিটো Row-ৰ অনন্যতা নিশ্চিত কৰে।)6. What is a foreign key?&nbsp;(Foreign Key কি?)Answer:&nbsp;A foreign key is a column in one table that refers to the primary key in another table.&nbsp;It establishes a relationship between two tables.

(Foreign Key হল এটা টেবুলৰ Column, যি আন টেবুলৰ Primary Key-ৰ সৈতে সম্পৰ্ক স্থাপন কৰে।)7. What is data redundancy?(Data Redundancy কি?)

Answer:&nbsp;Data redundancy means storing the same data multiple times, leading to data duplication.&nbsp;DBMS reduces data redundancy.

(Data Redundancy হল একেটা ডাটা একাধিকবাৰ সংৰক্ষণ হোৱা।)

8. What is data integrity in DBMS?&nbsp;(DBMS-ত Data Integrity কি?)Answer:&nbsp;Data integrity ensures the accuracy and consistency of data in a database.It prevents invalid or incorrect data entry.

(Data Integrity হল ডাটাৰ নিৰ্ভুলতা আৰু স্থিৰতা বজাই ৰখা।)9. What are the different types of DBMS?&nbsp;(DBMS-ৰ প্ৰকাৰসমূহ কি?)Answer:&nbsp;Hierarchical DBMS: Data is organized in a tree-like structure.Network DBMS: Uses a graph-like structure.

Relational DBMS: Uses tables to organize data.

Object-oriented DBMS: Stores data as objects.

(Hierarchical, Network, Relational, আৰু Object-oriented DBMS-ৰ প্ৰধান প্ৰকাৰসমূহ।)

10. What is&nbsp;SQL?&nbsp;(SQL কি?)

Answer:&nbsp;SQL (Structured Query Language) is used to interact with and manage data in a&nbsp;DBMS.&nbsp;It allows users to create, update, delete, and retrieve data from databases.

(SQL হল ডাটাবেইচ ব্যৱস্থাপনা কৰিবলৈ ব্যৱহৃত ভাষা।)11. What is normalization in DBMS?&nbsp;(DBMS-ত Normalization কি?)Answer:&nbsp;Normalization is the process of organizing data to reduce redundancy and improve data integrity.&nbsp;It divides large tables into smaller, related tables.

(Normalization হল ডাটা পুনৰাবৃত্তি কমাই ডাটা নিৰ্ভুলতা বজাই ৰখাৰ প্ৰক্ৰিয়া।)12. What is a query in DBMS?(DBMS-ত Query কি?)Answer:&nbsp;A query is a request to retrieve specific information from a database.It allows filtering, sorting, and extracting data.

(Query হল ডাটাবেইচৰ পৰা নির্দিষ্ট তথ্য উলিয়াই অনাৰ অনুৰোধ।)13. What is the difference between DDL and DML?(DDL আৰু DML-ৰ মাজত পাৰ্থক্য কি?)Answer:&nbsp;DDL (Data Definition Language): Used to define the structure of the database (e.g., CREATE, ALTER).DML (Data Manipulation Language): Used to manipulate data (e.g., SELECT, INSERT, UPDATE).

(DDL ডাটাবেইচৰ গঠন সংজ্ঞা দিয়ে, DML ডাটাবেইচৰ তথ্য সম্পাদনা কৰে।)

14. What is a relational database?&nbsp;(Relational Database কি?)Answer:&nbsp;A relational database organizes data into tables (relations) with rows and columns.&nbsp;

It uses keys to establish relationships between tables.

(Relational Database-এ Table-ৰ আকাৰত ডাটা সংৰক্ষণ কৰে আৰু Key-ৰ জৰিয়তে সম্পৰ্ক স্থাপন কৰে।)15. What are the functions of DBMS?(DBMS-ৰ কাৰ্য কি?)Answer:&nbsp;Data storage and retrieval.Data security and integrity management.Multi-user accessibility.Backup and recovery.(DBMS-এ ডাটা সংৰক্ষণ, সুৰক্ষা, আৰু পুনৰুদ্ধাৰ কৰা কাম কৰে।)

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