WGU C175 Pre-Assessment()Questions And Answers 100% Correct!
What is a broad definition of data? - ANSWERRaw facts that are captured on printed or digital media What are data? - ANSWERFacts that are collected and stored in a database system What is a determining characteristic of unstructured data? - ANSWERIt does not follow a data model. Which is true about flat files? - ANSWERThey contain no internal hierarchical organization. Which technology has no internal hierarchy? - ANSWERFlat files How were data retrieved before database management systems? - ANSWERSequentially from simple files In which two ways does a database management system environment increase effectiveness in working with data? - ANSWER- It enables data sharing, - It permits storage of vast volumes of data. What is the uniquely identifiable element about which data can be categorized in an entity-relationship diagram? - ANSWEREntity types Which classification is correct for the box marked "Quantity" in the given entity-relationship diagram? - ANSWERIntersection data Which data classification is an entity? - ANSWEREvent A salesperson is authorized to sell 12 products; a product can be sold by 10 salespersons. Which kind of binary relationship is described in this example? - ANSWERMany-to-many Which three kinds of rules for referential integrity are provided by modern relational
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- Subido en
- 30 de octubre de 2023
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- 6
- Escrito en
- 2023/2024
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- Examen
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