Difficulty: Easy
Correct Answer: A database is used to store, modify, and extract data in an organized way.
Explanation:
Introduction / Context:
Databases are at the core of almost every modern software application, from banking systems to social media platforms. This question tests your fundamental understanding of why we use a database at all. If you know the basic purpose of a database, you can better appreciate higher level topics such as normalization, indexing, and query optimization.
Given Data / Assumptions:
Concept / Approach:
A database is designed to organize data so that it can be stored reliably, updated consistently, and accessed efficiently. The three verbs that capture this idea are store, modify, and extract. Any correct definition must reflect all three aspects and emphasise the structured nature of the storage. The approach is to pick the answer that best captures this purpose and eliminate options that describe unrelated or partial functionality.
Step-by-Step Solution:
1. Look for keywords that represent the full lifecycle of data: input, update, and retrieval.2. Option A states that a database is used to store, modify, and extract data in an organized way. This matches the standard explanation of a database in textbooks.3. Option B limits the database to displaying predefined reports and denies permanent storage, which contradicts the fact that databases are persistent.4. Option C claims that the database is used only for network communication, which is actually the role of networking components, not the database.5. Option D describes a text editor, not a database, and does not mention structured storage or querying.6. Therefore, Option A is clearly the correct description of the purpose of a database.
Verification / Alternative check:
If you review any introductory database text or vendor documentation, you will see that a database management system is defined as software to define, create, maintain, and control access to a database. These verbs align closely with storing, modifying, and extracting data. You can also think of daily operations in applications that rely on databases: inserting new customers, updating orders, and generating reports. All of these are direct uses of the storage, modification, and retrieval capabilities that Option A mentions.
Why Other Options Are Wrong:
Option B is wrong because it ignores the persistent storage function and overemphasises reporting.Option C is wrong because network communication is handled by protocols and servers, not by the database itself.Option D is wrong because a text editor does not provide structured storage, indexing, or query language support.
Common Pitfalls:
A common misconception is to view the database only as a reporting tool because many users interact with it through reports. Another error is confusing a database with a simple file system, not recognising the added power of structured queries, relationships, and constraints. Understanding the full purpose of a database helps in designing schemas that support all required operations rather than focusing only on outputs.
Final Answer:
A database is used to store, modify, and extract data in an organized way.
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