Data Sources — Learn free

Self-check

Questions 1–10 of 10

1. What is a data source?
Question 1A. A tool that visualises analytical resultsB. Essentially where information comes from, such as a spreadsheet, a company database or social media postsC. A method for compressing large filesD. A policy governing who may access dataE. A machine learning model that predicts outcomes
2. Which of the following are named as examples of relational databases that can act as data sources?
Question 2A. MongoDB and CassandraB. Amazon S3 and Azure Blob StorageC. MySQL, PostgreSQL and OracleD. Salesforce and SAPE. Microsoft Excel and Google Sheets
3. MongoDB and Cassandra are given as examples of which kind of data source?
Question 3A. Flat filesB. Cloud storage servicesC. Spreadsheet filesD. System logsE. NoSQL databases that may store data in more flexible formats
4. Which type of data source is represented by systems such as Salesforce, SAP or Oracle ERP?
Question 4A. Business or enterprise applications like CRM and ERP systemsB. Flat filesC. Cloud storageD. LogsE. NoSQL databases
5. In which environments are spreadsheet files such as Excel or Google Sheets described as especially common data sources?
Question 5A. Large-scale, highly technical enterprise environments onlyB. Smaller-scale or less technical environmentsC. Cloud-native environments onlyD. Real-time streaming environmentsE. Security monitoring environments
6. Which of the following is an example of a flat file used as a data source?
Question 6A. A PostgreSQL tableB. A Salesforce CRM recordC. An Amazon S3 bucketD. A CSV (Comma Separated Values) fileE. A Cassandra collection
7. Amazon S3, Google Cloud Storage and Microsoft Azure Blob Storage are examples of which data source category?
Question 7A. Relational databasesB. Spreadsheet filesC. Cloud storage services used to store large amounts of data accessible from anywhereD. Enterprise CRM systemsE. Flat files
8. What purpose do logs (system, application and web server logs) serve as a data source?
Question 8A. They provide raw data about usage and performance for monitoring, debugging and security analysisB. They store customer contact details for marketingC. They hold financial ledgers for accountingD. They organise data into relational tables for BIE. They provide tabular data for offline spreadsheet analysis
9. Which of the following is NOT listed as a category of data source in information systems?
Question 9A. DatabasesB. Cloud storageC. LogsD. Flat filesE. Printed paper archives
10. How do data integration, data analytics and data science each relate to data sources?
Question 10A. All three delete data sources after useB. Integration brings different sources together; analytics helps you understand what the data is telling you; data science uses more complex methods to uncover deeper insights and make predictionsC. Integration predicts the future; analytics stores data; data science compresses itD. Only data science uses data sources; the other two do notE. Integration visualises data; analytics governs it; data science archives it