Identify Data Sources DA0-001 Practice Questions (Page 6)

Questions 26–30

1. 26expert · hard

   A non-profit organization wants to share its grant data with the public. The data is stored in a relational database. The organization wants to allow external developers to build applications using the data, but wants to control access and prevent excessive query load. Which approach is the best balance of accessibility and control?

   • APublish a REST API with rate limiting and API keys.
   • BPublish a static CSV file for download.
   • CShare the database credentials publicly.
   • DProvide direct read-only SQL access to the database.
   Reveal Solution Discussion Select an answer first
2. 27application · easy

   A DevOps engineer needs to identify the root cause of a sudden increase in application errors that occurred between 2:00 AM and 3:00 AM. The application runs on multiple servers. Which data source should the engineer examine first?

   • AThe database's schema definition.
   • BThe load balancer's configuration file.
   • CCentralized application and system logs aggregated from all servers.
   • DThe application's source code repository.
   Reveal Solution Discussion Select an answer first
4. 28expert · hard

   A platform team must decide where to store application logs for a 90-day retention period. The logs are used for both real-time alerting and historical troubleshooting. The team is considering a log management service versus storing logs as files in a repository. Which factor is most important in this decision?

   • AThe need for real-time search and alerting capabilities.
   • BThe number of developers on the team.
   • CThe size of the log files.
   • DThe programming language used by the application.
   Reveal Solution Discussion Select an answer first
5. 29expert · hard

   A real estate analytics firm needs to collect property listing data from 50 different brokerage websites. Some sites provide APIs, but most do not. The firm has a limited budget and needs the data daily. The data engineer must decide between building scrapers for all sites or using a commercial data provider. Which consideration is most important in this decision?

   • AThe programming language used for the scrapers.
   • BThe total cost of building and maintaining scrapers versus the subscription cost of the data provider.
   • CThe number of websites that offer APIs.
   • DThe color scheme of the brokerage websites.
   Reveal Solution Discussion Select an answer first
6. 30foundation · easy

   What is the primary purpose of an API (Application Programming Interface) in the context of data access?

   • ATo convert unstructured data into a structured format
   • BTo provide a graphical interface for users to interact with data
   • CTo store large amounts of structured data for analytical processing
   • DTo provide a standardized way for software applications to request and exchange data
   Reveal Solution Discussion Select an answer first