XDR-Engineer Ingestion And Automation Practice Question
An administrator has configured a new AWS CloudTrail integration via Broker VM to ingest cloud logs into Cortex XDR. However, no logs are appearing in the XDR database. Upon reviewing the Broker VM logs, the administrator notices an 'AccessDenied' error from AWS. What is the most likely root cause?
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
✓
The IAM role or user credentials provided to the Broker VM lack permissions to read from the S3 bucket
AWS CloudTrail ingestion requires an IAM role with sufficient permissions to access the designated S3 bucket containing the logs.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
The IAM role or user credentials provided to the Broker VM lack permissions to read from the S3 bucket
Why this is correct
AccessDenied errors in cloud integrations are caused by missing permissions in the IAM policy attached to the integration credentials.
- ✗
The Cortex XDR agent license has expired for cloud log ingestion
Why it's wrong here
License expirations typically result in license status flags rather than AWS API AccessDenied errors.
- ✗
The AWS region ID is misspelled in the local hosts configuration file
Why it's wrong here
Misspelled regions result in DNS or endpoint resolution failures, not IAM AccessDenied.
- ✗
The Broker VM has insufficient RAM allocated to run the S3 polling daemon
Why it's wrong here
RAM issues would cause out-of-memory errors, not an explicit AWS AccessDenied error.
Quick reference
AWS S3 Storage Class Comparison
| Storage Class | Min Duration | Retrieval | Use Case |
|---|---|---|---|
| S3 Standard | None | Immediate | Frequently accessed data |
| S3 Standard-IA | 30 days | Immediate | Infrequent access, rapid retrieval |
| S3 One Zone-IA | 30 days | Immediate | Non-critical infrequent data |
| S3 Intelligent-Tiering | None | Immediate–hours | Unknown or changing access patterns |
| S3 Glacier Instant | 90 days | Milliseconds | Archive with instant retrieval |
| S3 Glacier Flexible | 90 days | Minutes–hours | Archive, flexible retrieval |
| S3 Glacier Deep Archive | 180 days | Hours | Long-term compliance archive |
About these practice questions
One of 226 original XDR-Engineer practice questions on Courseiva, each with a full explanation and wrong-answer analysis — not exam dumps or protected exam content. Learn why practice questions differ from exam dumps →
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 XDR-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 XDR-Engineer exam.