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WorksheetsPost-Data Assessment
Total questions: 10
Worksheet time: 5mins
What is the definition of data as given in the document?
Data is information stored in databases.
Data is a collection of facts and figures used for analysis, reasoning, or decision-making.
Data is only numerical information.
Data is unstructured information.
Which of the following is an example of unstructured data?
A spreadsheet of student grades.
A student record written in a sentence.
A temperature log in a table.
A JSON file with key-value pairs.
What is a primary source of data?
Government reports.
Research articles.
Direct observation or survey.
Previously published datasets.
Data integrity includes which of the following aspects?
Only accuracy and completeness.
Completeness, accuracy, consistency, accessibility, and security.
Only security and accessibility.
Only logical structure.
Which category of data integrity protects data from natural disasters and cyberattacks?
Logical data integrity.
Entity integrity.
Physical data integrity.
User-defined integrity.
What is data quality a measure of?
Data storage efficiency.
Data integrity.
Data collection speed.
Data format variety.
Which of the following is NOT listed as a benefit of good data quality?
Improved efficiency.
Increased data value.
Higher data collection costs.
Better decision-making.
Which method involves auditing data to uncover errors and inconsistencies?
Data cleansing.
Data profiling.
Geocoding.
Master data management.
Which data format stores data in key-value pairs and is human-readable?
CSV.
Binary.
JSON.
Apache Parquet.
What is the purpose of master data management (MDM)?
To clean data in real-time.
To create a centralised data registry for an organisation.
To convert data into binary format.
To perform geographic tagging of data.
