DA0-002 practice question 18 of 25

[Data Concepts and Environments]Which of the following data sources makes online data consumption easier?

Full set: 111 questions

[Data Concepts and Environments]

Which of the following data sources makes online data consumption easier?

Answer options
A: Data mart
B: Web scraping
C: Database
D: Application programming interface Correct answer
Correct Answer:
D. Application programming interface
Explanation

An Application Programming Interface (API) is a set of definitions, protocols, and tools for building application software. In the context of online data, a web API provides a structured and standardized "front door" for applications to request and receive data from a server over the internet. It abstracts the underlying complexity of the data source (e.g., a database), making it significantly easier for developers to programmatically access and integrate data into their own applications. APIs typically use standard web protocols like HTTP/HTTPS and common data formats like JSON or XML, simplifying the consumption process.

Why Incorrect

A. Data mart: A data mart is a subject-oriented repository of data, not an interface or mechanism designed to simplify online data exchange.
B. Web scraping: This is a data extraction technique that is often brittle, complex to maintain, and lacks the standardization and reliability of an API.
C. Database: Direct online access to a database is complex, requiring specific drivers, credentials, and knowledge of the database schema, making it less easy than an API. ---

References

1. Amazon Web Services (AWS) Documentation. "What is an API?". AWS explains that APIs are the mechanism enabling software components to communicate, simplifying development and innovation. It states, "APIs let your product or service communicate with other products and services without having to know how they’re implemented. This can simplify app development, saving time and money." This directly supports the idea that APIs make data consumption easier. (aws.amazon.com/what-is/api/)

2. Microsoft Azure Documentation. "What is API Management?". This document describes APIs as the "front door for applications to access data and business logic from your backend services." This highlights the role of APIs as a simplified, managed entry point for data consumption, which is the core of the question. (docs.microsoft.com/en-us/azure/api-management/api-management-key-concepts, Section: "APIs")

3. Red Hat Documentation. "What is an API?". Red Hat defines an API as a specification that "simplifies programming by abstracting the underlying implementation and only exposing objects or actions the developer needs." This abstraction is precisely what makes online data consumption easier compared to direct access methods. (www.redhat.com/en/topics/api/what-is-an-api)

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