UNIT-3

What is the primary objective of Enterprise Architecture?

• To define software programming standards

• To align IT and business strategy

• To manage only data storage systems

• To create mobile applications

Which of the following is NOT a principle of good Data Architecture?

• Data should be secured and compliant

• Data should be stored in isolated silos

• Data should be treated as a strategic asset

• Data should be interoperable and reusable

Which layer of Data Architecture is responsible for storing structured and unstructured data?

• Data Presentation Layer

• Data Ingestion Layer

• Data Storage Layer

• Data Processing Layer

What is metadata in the context of Data Architecture?

• Data about data (structure, meaning, lineage)

• A type of database index

• A raw dataset stored in a data lake

• A method for data compression

Which of the following is an example of structured data?

• Social media posts

• Relational database tables

• Audio recordings

• Video files

A Data Lake is mainly used for storing:

• Only structured data

• Only transactional data

• Structured, semi-structured, and unstructured data

• Only data from relational databases

Which of the following statements about Data Warehouses is true?

• They store only unstructured data

• They are optimized for OLTP transactions

• They support complex analytical queries (OLAP)

• They are primarily used for real-time processing

Which of the following is NOT a common source of data?

• IoT sensors

• Social media platforms

• Video game controllers

• Enterprise applications

Which of the following is an example of unstructured data?

• Customer transaction records

• An Excel spreadsheet

• Video surveillance footage

• A table in a relational database

Which of the following is commonly used to expose application data to external systems?

• APIs

• Data lakes

• Data pipelines

• ETL tools