Cloud-Security-Engineer Identity And Access Security Practice Question
What is an External ID in the context of AWS IAM cross-account role assumption, and why does Prisma Cloud require it?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
A unique identifier used to prevent the confused deputy problem when third-party tools assume roles
An External ID is a unique token used to prevent the 'confused deputy' problem during cross-account role assumption by third-party SaaS vendors.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
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A password used to encrypt S3 buckets containing scan results
Why it's wrong here
External ID is not an encryption key.
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An API key used for Prisma Cloud agent authentication
Why it's wrong here
Agent authentication uses access tokens, not IAM External IDs.
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The account number of the AWS management account
Why it's wrong here
The management account ID is separate from the External ID token.
- ✓
A unique identifier used to prevent the confused deputy problem when third-party tools assume roles
Why this is correct
It ensures that only the authorized third-party application instance can assume the cross-account role.
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JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed August 2026 · checked against the official Palo Alto Networks exam blueprint
This Cloud-Security-Engineer practice question is part of Courseiva's free Palo Alto Networks certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the Cloud-Security-Engineer exam.