Data Streaming — Learn free

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Questions 1–10 of 10

1. What is data streaming?
Question 1A. A method of storing data in compressed archives for long-term retentionB. A method of processing and transmitting data continuously and in real time rather than in batchesC. A method of copying an entire database once a monthD. A technique for converting paper documents into digital filesE. A way of grouping records so they can be processed at scheduled intervals
2. Which analogy is used to describe data streaming compared with traditional methods?
Question 2A. Water moving in a river on a regular basis, compared with water stored once with no more coming inB. A library card catalogue compared with a search engineC. A single lorry compared with a fleet of vansD. A locked safe compared with an open shelfE. A printed newspaper compared with a television
3. In the bucket analogy for traditional data handling, what does filling the bucket represent?
Question 3A. Streaming data piece by piece as it arrivesB. Deleting data once it has been analysedC. Collecting a bunch of data and then analysing it all at onceD. Encrypting data before transmissionE. Sending data to multiple destinations simultaneously
4. How does data streaming use social media feeds as an example?
Question 4A. Posts are stored for a week and then published togetherB. Users must download an archive to see new commentsC. Comments are only visible after a nightly refreshD. New posts, comments and updates are shown in real time as they are postedE. Photos are compressed into batches before display
5. Which example describes data streaming in financial transactions?
Question 5A. Account balances are updated only during an overnight batchB. Statements are posted to customers once a monthC. Loan applications are reviewed weekly by a committeeD. Interest is calculated at the end of each quarterE. A credit card purchase is immediately reflected in the account balance
6. How do wearable health monitoring devices illustrate data streaming?
Question 6A. A fitness tracker continuously measures heart rate, steps and sleep patterns, updating health stats in real timeB. A doctor enters test results into a system at the end of each weekC. Patients fill in a paper questionnaire once a yearD. A hospital archives old patient records to reduce storageE. A pharmacy prints prescription labels in batches
7. In traffic monitoring, what do cameras and sensors on roads provide through data streaming?
Question 7A. Monthly reports on road maintenance costsB. Real-time information about traffic conditions that helps optimise traffic signalsC. A static map of road layoutsD. A nightly batch of vehicle registrationsE. Annual statistics on fuel consumption
8. Why does an online video on YouTube or Netflix start playing almost instantly?
Question 8A. Because the whole video was downloaded overnightB. Because the video is stored on the viewer's device in advanceC. Because the data is streamed to the device as you watchD. Because videos are compressed into a single batch fileE. Because the service processes all requests at scheduled intervals
9. Which of the following is NOT given as an example of data streaming?
Question 9A. Weather monitoring with continuous temperature, humidity and wind speed dataB. Social media feeds showing new posts in real timeC. Traffic control systems monitoring traffic flowD. Payroll calculated and distributed at the end of a pay periodE. Online video streaming services
10. In which situations is data streaming described as particularly useful?
Question 10A. Situations where data is rarely updatedB. Situations where storage cost is the only concernC. Situations where reports are needed once a yearD. Situations where paper records must be preservedE. Situations where real-time insights and quick responses are crucial