SISE Architecture And Deployment Practice Question
Which TWO are common causes for a node to fail to join a 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
✓
Blocked network ports
The most common causes are certificate validation errors and network connectivity issues (e.g., blocked ports).
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Insufficient memory on the node
Why it's wrong here
Memory is less critical for the joining process.
- ✓
Blocked network ports
Why this is correct
Management ports must be open.
- ✗
License mismatch between nodes
Why it's wrong here
License mismatch usually allows joining but shows errors.
- ✓
Invalid certificate trust between nodes
Why this is correct
Certificates must be trusted for secure communication.
- ✗
Incorrect browser version
Why it's wrong here
Browser is for the GUI, not the node handshake.
Visual reference
About these practice questions
One of 322 original SISE 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 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.