Data Island — Learn free

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Questions 1–10 of 10

1. What is a Data Island?
Question 1A. A datastore that is only accessible to its relevant stakeholdersB. A datastore that holds only reference dataC. A datastore, or set of datastores, that is not accessibleD. A datastore hosted on a remote cloud regionE. A datastore that has been fully encrypted
2. Why has the Data Island largely disappeared?
Question 2A. Because organisations no longer store confidential dataB. Because integration technologies have maturedC. Because floppy drives were replaced by hard disksD. Because data silos replaced themE. Because network security concerns have vanished
3. In the era before wireless networking, which of the following was a way data was physically moved between locations, as described in *I Am Datapedia!*?
Question 3A. Uploading it to a shared cloud folderB. Streaming it through an APIC. Sending it over a Wi-Fi linkD. Replicating it with a CDC toolE. Carrying floppy drives, big hard disks or even whole desktops
4. Which reason can lead an organisation to make a datastore a Data Island on purpose?
Question 4A. A risk of exposing confidential data to irrelevant stakeholdersB. A desire to speed up cross-departmental reportingC. A need to give every department read accessD. A plan to build a data warehouse from itE. A shortage of database licences
5. Which statement about Data Islands and Data Silos is correct?
Question 5A. Data Islands and Data Silos are two names for the same thingB. Data Silos have disappeared while Data Islands still existC. Data Islands are a modern replacement for Data SilosD. Data Islands should not be confused with Data Silos, which still existE. Data Silos are always a subset of a Data Island
6. Roughly when does *I Am Datapedia!* say Wi-Fi was 'not a thing', so that only cables connected desktops and laptops to a network?
Question 6A. Before 1990B. Before 1995C. Before 2005D. Before 2015E. Before 2020
7. In which circumstances did datastores come to be regarded as Data Islands?
Question 7A. When their data quality was too low to shareB. When they were used only by one development teamC. When they were hosted by third-party data companiesD. When they exceeded a certain storage sizeE. When network security was a big concern or network connectivity did not exist
8. Which of the following is NOT given as a reason a Data Island may exist?
Question 8A. Lack of a data catalogueB. Lack of data securityC. Lack of data encryptionD. Absence of network connectivityE. Lack of data privacy measures
9. What is the key characteristic that distinguishes a Data Island from other datastores?
Question 9A. It stores only unstructured dataB. It cannot be connected with other datastoresC. It is always located in a different cityD. It is owned by the finance departmentE. It is refreshed only once a year
10. How does the author of *I Am Datapedia!* describe modern life without Wi-Fi?
Question 10A. Like working on a mainframeB. Like living without electricityC. Like living in a Data SiloD. Like living without airE. Like using a floppy drive