Question 330
A finance group restricts BigQuery table IAM but worries that a compromised permitted identity could copy data into a project outside the trusted boundary. Which limitation must be considered before claiming the issue is fully resolved?
Explanation
Correct Answer
VPC Service Controls supplements but does not replace IAM or protect arbitrary internet protocols. This caution prevents extrapolating beyond the specific evidence or product boundary. Data perimeter controls restrict supported service access across trust boundaries. The unresolved point should be tested using VPC Service Controls perimeter configuration, API access context and data-move tests rather than assuming a working interface proves full compliance or resilience.
Incorrect Answers
Service perimeters make underlying IAM policies unnecessary. This limitation is framed as a blanket exception, but the case requires a different, narrower caution. The relevant boundary is that VPC Service Controls supplements but does not replace IAM or protect arbitrary internet protocols. Data perimeter controls restrict supported service access across trust boundaries. Inspect VPC Service Controls perimeter configuration, API access context and data-move tests.
VPC Service Controls protects every arbitrary third-party HTTP endpoint automatically. The proposed claim mistakes an incomplete signal or product feature for a universal guarantee. The relevant boundary is that VPC Service Controls supplements but does not replace IAM or protect arbitrary internet protocols. Data perimeter controls restrict supported service access across trust boundaries. Inspect VPC Service Controls perimeter configuration, API access context and data-move tests.
A data perimeter is proof that no malicious user can read data inside it. This claim exceeds the evidence and ignores an important risk or operational dependency. The relevant boundary is that VPC Service Controls supplements but does not replace IAM or protect arbitrary internet protocols. Data perimeter controls restrict supported service access across trust boundaries. Inspect VPC Service Controls perimeter configuration, API access context and data-move tests.