SDSI Risk Events And Requirements Practice Question
A security design requires that all outbound traffic be inspected for malware. Which Cisco solution feature should be included to achieve this at the DNS layer?
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
✓
Cisco Umbrella DNS-layer security.
Cisco Umbrella provides DNS-layer security by preventing connections to known malicious domains.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Cisco AnyConnect VPN tunnel.
Why it's wrong here
VPN provides a secure tunnel, but not intrinsic DNS-layer malware filtering.
- ✗
Cisco Identity Services Engine.
Why it's wrong here
ISE does not perform DNS-layer malware inspection.
- ✗
Cisco Secure Firewall IPS.
Why it's wrong here
IPS inspects traffic, but the requirement specifically mentions DNS layer.
- ✓
Cisco Umbrella DNS-layer security.
Why this is correct
Umbrella performs DNS filtering and malware blocking at the DNS resolution stage.
About these practice questions
Courseiva writes every SDSI question from scratch — 298 in total, each with an explanation and a wrong-answer breakdown. None are copied from real exams or 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 SDSI 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 SDSI exam.