The answer is a VPC. This is correct because a private hosted zone in Amazon Route 53 is inherently scoped to one or more specific VPCs; the zone itself cannot serve DNS queries or resolve custom domain names unless it is explicitly associated with a VPC by providing the VPC ID and its AWS Region. On the AWS Certified SysOps Administrator Associate SOA-C02 exam, this concept tests your understanding that the private hosted zone is not globally accessible but rather tied to the VPC as the required resource for association—a common trap is thinking you need an additional resource like a VPN or Direct Connect, when in fact the VPC alone is sufficient. Remember the key memory tip: "No VPC, no private DNS"—the VPC is the mandatory anchor for any private hosted zone association.
SOA-C02 Networking and Content Delivery Practice Question
This SOA-C02 practice question tests your understanding of networking and content delivery. 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 has a VPC that requires DNS resolution for custom domain names within the VPC. They want to use a private hosted zone in Amazon Route 53. Which resource is required to associate the private hosted zone with the VPC?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
A VPC
To associate a private hosted zone with a VPC in Amazon Route 53, you must specify the VPC ID and the AWS Region of the VPC. The VPC itself is the required resource because the private hosted zone is scoped to one or more VPCs, enabling DNS resolution for custom domain names only within those VPCs. Without a VPC association, the private hosted zone cannot serve DNS queries.
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.
✗
A resolver rule
Why it's wrong here
A resolver rule is used with Route 53 Resolver for forwarding queries, not for association.
✗
A public hosted zone
Why it's wrong here
A public hosted zone is used for public DNS resolution and is not needed for a private hosted zone.
✓
A VPC
Why this is correct
A private hosted zone must be associated with one or more VPCs to be accessible within those VPCs.
Related concept
Read the scenario before looking for a memorised answer.
✗
A CNAME record
Why it's wrong here
A CNAME record is a DNS record type, not a resource needed for association.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse the resource needed for association (the VPC) with DNS record types or resolver configurations, mistakenly thinking a CNAME record or resolver rule is required to link the hosted zone to the VPC.
Detailed technical explanation
How to think about this question
When you associate a private hosted zone with a VPC, Route 53 automatically creates an authoritative DNS endpoint within that VPC, allowing EC2 instances to resolve custom domain names using the VPC's default DNS resolver (the .2 address). The association is regional by default, but you can enable cross-account or cross-region associations using Route 53 Resolver rules or VPC peering, though the private hosted zone itself must be explicitly associated with each VPC. This design ensures that DNS queries for the private hosted zone are only answered within the associated VPCs, maintaining network isolation.
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.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Networking and Content Delivery — This question tests Networking and Content Delivery — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: A VPC — To associate a private hosted zone with a VPC in Amazon Route 53, you must specify the VPC ID and the AWS Region of the VPC. The VPC itself is the required resource because the private hosted zone is scoped to one or more VPCs, enabling DNS resolution for custom domain names only within those VPCs. Without a VPC association, the private hosted zone cannot serve DNS queries.
What should I do if I get this SOA-C02 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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Question Discussion
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