ANS-C01 Network Management and Operations Practice Question
A company uses AWS Client VPN to provide remote access to its corporate network. Users report that they can connect to the VPN but cannot reach resources in the VPC. The VPN is configured with mutual authentication and authorization rules. What should the network engineer verify first?
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
✓
The authorization rules grant access to the target network
AWS Client VPN uses authorization rules to control which groups of clients can access specific target networks (e.g., subnets in the VPC). Even if the VPN connection is established, without proper authorization rules granting access to the target network, traffic will not be forwarded to the VPC resources. Option A is incorrect because the security group associated with the VPN endpoint controls inbound traffic to the endpoint itself, not traffic between clients and VPC resources. Option B is incorrect because if the client can connect, the server certificate is valid and trusted. Option C is incorrect because while overlapping CIDR ranges can cause routing issues, the fact that the connection succeeds indicates that the client CIDR range is valid and does not overlap with the VPC CIDR.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
The security group associated with the VPN endpoint allows inbound traffic from the client CIDR
Why it's wrong here
If the connection is established, security groups are not blocking the tunnel.
- ✗
The server certificate is valid and trusted by the client
Why it's wrong here
Certificate issues would prevent connection, not access after connection.
- ✗
The client CIDR range does not overlap with the VPC CIDR
Why it's wrong here
Overlap would cause routing issues, but users can connect.
- ✓
The authorization rules grant access to the target network
Why this is correct
Authorization rules are required to allow traffic to the VPC.
Visual reference
Go deeper
Related to this question
About these practice questions
This ANS-C01 question is part of Courseiva's 1,621-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 by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This ANS-C01 practice question is part of Courseiva's free Amazon Web Services 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 ANS-C01 exam.