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Question 83 - CBDA discussion

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An analyst is using a Data Flow Diagram (DFD) to depict the flow of data across a data security company. Which of the following is true about DFDs?

A.
Can be categorized as Logical or Physical
Answers
A.
Can be categorized as Logical or Physical
B.
Can illustrate a sequence of activities
Answers
B.
Can illustrate a sequence of activities
C.
Provide similar information as process flows
Answers
C.
Provide similar information as process flows
D.
Are used to model data attributes
Answers
D.
Are used to model data attributes
Suggested answer: A

Explanation:

A Data Flow Diagram (DFD) is a technique that shows the flow of data among processes, data stores, and external entities in a system. DFDs can be categorized as logical or physical, depending on the level of detail and abstraction. A logical DFD focuses on the business functions and data flows, without specifying the implementation details. A physical DFD shows the actual components and mechanisms that are involved in the data flow, such as hardware, software, files, and network connections.

Reference:

* 10.13 Data Flow Diagrams | IIBA - International Institute of Business ..., menu, 10.13 Data Flow Diagrams

* Business Analysis Certification in Data Analytics, CBDA | IIBA, CBDA Competencies, Domain 2: Source Data

* Introduction to Business Data Analytics: Organizational View, page 16, Figure 6: Data Flow Diagram

asked 18/09/2024
Victor vila
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