- A
Configure route tables in the VPC to direct traffic to the Client VPN endpoint.
Why wrong: Routes are automatically added when the endpoint is associated with subnets.
- B
Associate the Client VPN endpoint with subnets in the VPC.
Subnet associations allow the endpoint to have elastic network interfaces in those subnets.
- C
Create authorization rules to allow access to the target networks.
Authorization rules define which users can access which networks.
- D
Attach the VPC to a transit gateway.
Why wrong: A transit gateway is not required for Client VPN.
- E
Configure security groups on the target subnets.
Why wrong: Security groups are applied to the VPN endpoint, not subnets.
Question 82 of 1,705
ANS-C01 Network Implementation Practice Question
This ANS-C01 practice question tests your understanding of network implementation. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A company is deploying an AWS Client VPN endpoint to provide remote access to its VPC resources. The company wants to allow clients to access resources in multiple subnets within the VPC. Which TWO configurations are necessary?
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
✓
Associate the Client VPN endpoint with subnets in the VPC.
Option B is correct because associating the Client VPN endpoint with subnets in the VPC is required to establish the network connectivity between the VPN clients and the VPC. The Client VPN endpoint uses elastic network interfaces in the associated subnets to route traffic from clients into the VPC. Without this association, the endpoint cannot forward traffic to VPC resources.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Configure route tables in the VPC to direct traffic to the Client VPN endpoint.
Why it's wrong here
Routes are automatically added when the endpoint is associated with subnets.
- ✓
Associate the Client VPN endpoint with subnets in the VPC.
Why this is correct
Subnet associations allow the endpoint to have elastic network interfaces in those subnets.
Related concept
Read the scenario before looking for a memorised answer.
- ✓
Create authorization rules to allow access to the target networks.
Why this is correct
Authorization rules define which users can access which networks.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Attach the VPC to a transit gateway.
- ✗
Configure security groups on the target subnets.
Why it's wrong here
Security groups are applied to the VPN endpoint, not subnets.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse authorization rules (which control access to target networks) with network connectivity requirements, leading them to think that only subnet association is needed, or they mistakenly believe that VPC route tables must be manually configured to point to the Client VPN endpoint, when in fact the endpoint automatically propagates routes into the associated subnet route tables.
Detailed technical explanation
How to think about this question
Under the hood, when you associate a subnet with a Client VPN endpoint, AWS creates an elastic network interface (ENI) in that subnet with a private IP address from the subnet's CIDR. The Client VPN endpoint then uses this ENI to route traffic to and from the VPC. Authorization rules are evaluated per client, allowing or denying access to specific networks (e.g., VPC CIDR) based on the client's Active Directory group or SAML attributes, and they work in conjunction with the endpoint's route table to enforce access control.
KKey Concepts to Remember
- Read the scenario before looking for a memorised answer.
- Find the constraint that changes the correct option.
- Eliminate answers that are true in general but not in this case.
TExam Day Tips
- Watch for words such as best, first, most likely and least administrative effort.
- Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A company's IT admin needs to give a contractor read-only access to production logs without sharing account credentials. Using role-based access control (RBAC) and temporary scoped permissions — not a permanent shared password — is the correct pattern. Questions like this test whether you can apply least-privilege access across cloud identity services.
Visual reference
What to study next
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FAQ
Questions learners often ask
What does this ANS-C01 question test?
Network Implementation — This question tests Network Implementation — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Associate the Client VPN endpoint with subnets in the VPC. — Option B is correct because associating the Client VPN endpoint with subnets in the VPC is required to establish the network connectivity between the VPN clients and the VPC. The Client VPN endpoint uses elastic network interfaces in the associated subnets to route traffic from clients into the VPC. Without this association, the endpoint cannot forward traffic to VPC resources.
What should I do if I get this ANS-C01 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Last reviewed: Jul 4, 2026
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