CND Practice Question: Enterprise Cloud Virtual And Wireless Network Protection
A security administrator is deploying a Microsoft Azure Virtual Network and needs to ensure that all outbound traffic from a specific subnet to the public internet is filtered using fully qualified domain name (FQDN) rules rather than IP addresses. Which Azure resource should be deployed to achieve this?
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
✓
Azure Firewall with Application Rules
Azure Firewall supports application rules based on FQDNs for outbound network traffic, allowing filtering without relying on static IP addresses.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Azure Firewall with Application Rules
Why this is correct
Azure Firewall allows creating application rules using FQDNs for outbound HTTP/HTTPS traffic filtering.
- ✗
Azure Application Gateway with Web Application Firewall
Why it's wrong here
Application Gateway is a Layer 7 load balancer for inbound web traffic, not outbound subnet traffic filtering.
- ✗
Network Security Group (NSG) with custom service tags
Why it's wrong here
NSGs operate at Layer 3 and Layer 4 using IP addresses, ports, and service tags, but do not support FQDN-based outbound rules.
- ✗
User Defined Routes (UDR) pointing to a load balancer
Why it's wrong here
UDRs define custom routing tables but do not provide stateful application-layer FQDN filtering.
Visual reference
About these practice questions
This CND question is part of Courseiva's 323-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 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.