CND Network Perimeter Protection Practice Question
An organization is setting up a high-availability perimeter firewall pair. Which protocol is commonly utilized to provide seamless failover by sharing a virtual IP address between the active and standby firewalls?
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
✓
VRRP (Virtual Router Redundancy Protocol)
VRRP (Virtual Router Redundancy Protocol) and HSRP are standard redundancy protocols used to provide virtual IP failover.
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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RADIUS
Why it's wrong here
RADIUS is an authentication, authorization, and accounting protocol.
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VRRP (Virtual Router Redundancy Protocol)
Why this is correct
VRRP allows multiple routers/firewalls to share a virtual IP address for automatic failover.
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BGP (Border Gateway Protocol)
Why it's wrong here
BGP is an exterior gateway routing protocol for exchanging routing info between ASes.
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DHCP (Dynamic Host Configuration Protocol)
Why it's wrong here
DHCP assigns IP addresses to clients.
About these practice questions
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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 EC-Council exam blueprint
This CND practice question is part of Courseiva's free EC-Council 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 CND exam.