Google Professional Cloud Network Engineer Question 554
Single answerGoogle Cloud PlatformYour company has an on-premises DNS server used to resolve internal hostnames, and you want to enable hybrid connectivity with your Google Cloud resources. You need to ensure that on-premises resources can resolve hostnames in Google Cloud and vice versa. Which solution should you implement to integrate on-premises DNS with Google Cloud DNS?
- A
Set up a Cloud DNS inbound server policy and configure your on-premises DNS server to forward queries to it.
- B
Configure a Cloud VPN or Interconnect connection and set up DNS peering zones in Cloud DNS.
- C
Use Google Cloud's DNS forwarding feature to automatically sync DNS records between on-premises and Google Cloud.
- D
Deploy a DNS proxy on a Compute Engine VM and use it to route DNS queries between Google Cloud and on-premises.
Show answer and explanation
Correct answer: B
Explanation
To enable hybrid DNS resolution between on-premises and Google Cloud, you need to establish a network connection such as Cloud VPN or Interconnect. Once the connection is in place, DNS peering zones in Cloud DNS allow bidirectional DNS query forwarding. This approach is efficient and aligns with best practices for integrating on-premises DNS with Google Cloud.
- A. Incorrect.
This option is incorrect because an inbound server policy is used to forward DNS requests from Google Cloud to on-premises, not the other way around. This does not accomplish bidirectional DNS resolution.
- B. Correct.
This is the correct answer because setting up a Cloud VPN or Interconnect provides hybrid connectivity, and DNS peering zones allow for integration between on-premises and Google Cloud DNS for bidirectional hostname resolution.
- C. Incorrect.
This option is incorrect because Google Cloud does not have a feature to automatically sync DNS records between on-premises and Google Cloud DNS. DNS forwarding requires proper configuration of forwarding zones or peering zones instead.
- D. Incorrect.
This option is incorrect because deploying a DNS proxy on a Compute Engine VM is not the recommended approach for hybrid DNS integration. Google Cloud provides native solutions like DNS peering zones that are more efficient.