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Understanding Databases and Data Representation

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Understanding Databases and Data Representation

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Questions and Answers

What is the primary difference between structured and unstructured data?

Structured data includes numbers, text, and dates, while unstructured data includes images, video, and documents. (correct)

Structured data is processed for analyses in a data warehouse, while unstructured data is used for day-to-day operations.

Structured data is organized based on relationships, while unstructured data contains program-data dependencies.

Structured data is stored in a centralized database, while unstructured data is stored in a distributed database.

What defines a centralized database?

Supports concurrent users at a time.

Supports fault-tolerant mechanisms.

Used for day-to-day operations.

Data is located in a single site. (correct)

What characterizes an operational database?

Supports day-to-day operation for the organization. (correct)

Stores data used for analyses and generating reports.

Supports one user at a time.

Data is structured in relationships between entities.

What is the main purpose of a data warehouse in the context of databases?

Used to generate information for analyses. Signup and view all the answers

What issue arises from using a file processing system instead of a database?

Data inconsistencies can occur with changes in one file. Signup and view all the answers

How does a clustered database differ from a standalone database?

A clustered database supports fault-tolerant mechanisms, unlike a standalone database. Signup and view all the answers

What distinguishes a data warehouse from an operational database?

Data warehouses support data analysis, while operational databases support day-to-day operations. Signup and view all the answers

What is the primary characteristic of a file processing system in contrast to a database?

File processing systems maintain program-data dependency, while databases do not. Signup and view all the answers

In a database, what does metadata specifically describe?

The properties and context of user data in the database. Signup and view all the answers

What is the main function of a clustered database?

Supports fault-tolerant mechanisms. Signup and view all the answers

Which type of database architecture stores data located in different sites?

Distributed database Signup and view all the answers

What is the distinguishing feature of a standalone database?

Has no fault-tolerant mechanisms. Signup and view all the answers

What is the purpose of a centralized database as opposed to a distributed one?

Stores data in a single site. Signup and view all the answers

What type of operations does an operational database primarily support?

Day-to-day operation for the organization Signup and view all the answers