SISE Architecture And Deployment Practice Question
What is the function of the 'PassiveID' feature in a distributed ISE deployment?
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
✓
It provides user identity mapping without active probing
PassiveID allows ISE to collect user-to-IP mapping information from external sources without active polling, which is critical for identity-based access control.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
It enables redundant authentication
Why it's wrong here
PassiveID is for mapping, not authentication redundancy.
- ✗
It replaces the need for PSNs
Why it's wrong here
PassiveID is a service running on PSNs.
- ✗
It caches RADIUS requests
Why it's wrong here
ISE does not cache RADIUS requests in this manner.
- ✓
It provides user identity mapping without active probing
Why this is correct
PassiveID listens to sources like WMI or Syslog for identity mapping.
About these practice questions
This SISE question is part of Courseiva's 322-question bank — original exam-style content with full explanations and wrong-answer analysis, never real exam questions or exam dumps. 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 Cisco exam blueprint
This SISE practice question is part of Courseiva's free Cisco 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 SISE exam.