ISC2 Governance, Risk and Compliance (CGRC) Practice Question
During audit preparation for a cloud-hosted payment application, you must quickly determine whether customer PII is protected while moving between internal microservices. Which system document will most efficiently give a visual depiction of the data paths and indicate if encryption (for example, TLS) is applied to each flow?
The server build and configuration baseline checklist
The overall system security plan (SSP) describing implemented controls
The change control log documenting recent code and configuration updates
The application's data flow diagram that labels trust boundaries and transmission protections
A data flow diagram (DFD) maps how information moves between system components and identifies the protocols, trust boundaries, and protection mechanisms-such as TLS-applied to each interaction. Reviewing the DFD lets an assessor rapidly see whether PII is encrypted in transit between microservices before deeper technical testing. A system security plan summarizes controls but rarely visualizes specific data paths. Configuration baselines list required settings for individual hosts, not inter-component flows. Change control logs track modifications over time but do not depict how data is transmitted or protected.
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ISC2 Governance, Risk and Compliance (CGRC)
Assessment/Audit of Security and Privacy Controls
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