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Professional Cloud Architect Exam - Question 77


You want to establish a Compute Engine application in a single VPC across two regions. The application must communicate over VPN to an on-premises network.

How should you deploy the VPN?

Show Answer
Correct Answer: D

To establish a Compute Engine application in a single VPC across two regions and communicate over VPN to an on-premises network, you should deploy Cloud VPN Gateways in each region. This ensures that each region has at least one VPN tunnel to the on-premises peer gateway. This approach provides redundancy and addresses the regional nature of Cloud VPN objects, ensuring reliable communication.

Discussion

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Googler2Option: D
Apr 12, 2020

It can't be -A - VPC Network Peering only allows private RFC 1918 connectivity across two Virtual Private Cloud (VPC) networks. In this example is one VPC with on-premise network https://cloud.google.com/vpc/docs/vpc-peering It is not definitely - B - Can't be It is not C - Because Cloud VPN gateways and tunnels are regional objects, not global So, it the answer is D - https://cloud.google.com/vpn/docs/how-to/creating-static-vpns

amxexam
Sep 8, 2021

Why not A? https://cloud.google.com/vpc/docs/vpc-peering#benefits_of_exchanging_custom_routes The second use case is exactly what is in the question. Don't get the argument about RFC 1918. Will go with A

ochanz
Dec 16, 2021

https://cloud.google.com/vpc/docs/vpc-peering allows internal IP address connectivity across two VPC so A is not the answer as the on premise network need to use public IP. cmiiw

AdityaGupta
Oct 6, 2023

The question clearly asks us to use VPN.

AzureDP900
Oct 16, 2022

Agreed with D.

TaherShakerOption: D
Nov 18, 2020

Just Passed my exam and I answered (D) for this question

M_Asep
Dec 6, 2021

sound promising dude

Sur_Nikki
May 8, 2023

IS the Exam Idea questions enough dude, for passing this exam?

DrishaS4Option: D
Aug 4, 2022

Cloud VPN Gateway is a regional service, not global.

LaxmanTiwariOption: D
May 13, 2023

It can't be -A - VPC Network Peering only allows private RFC 1918 connectivity across two Virtual Private Cloud (VPC) networks. In this example is one VPC with on-premise network https://cloud.google.com/vpc/docs/vpc-peering It is not definitely - B - Can't be It is not C - Because Cloud VPN gateways and tunnels are regional objects, not global So, it the answer is D - https://cloud.google.com/vpn/docs/how-to/creating-static-vpn

vincy2202Option: D
Nov 28, 2021

D is the correct answer

haroldbenitesOption: D
Dec 7, 2021

Go for D. Cloud VPN Gateway is regional. NOt Global gcloud compute vpn-gateways create GW_NAME \ --network=NETWORK \ --region=REGION

elaineshiOption: C
Jun 1, 2022

Why not C? services across regions can communicate to each other, VPN only connects to the closet region, and all the VPC shall be connected if firewall's set.

oms_mucOption: D
Dec 19, 2022

As HA isn't required, why do we need two VPN gateways?

AdityaGuptaOption: D
Oct 6, 2023

Each Cloud VPN gateway is a regional resource that uses one or more regional external IP addresses. A Cloud VPN gateway can connect to a peer VPN gateway.

gcmrjbrOption: C
Dec 30, 2023

It´s option C! So, while the VPN Gateway itself is a regional resource, its scope can be effectively global as it can serve resources across different regions within the same Virtual Private Cloud (VPC). This is why it’s sometimes referred to as a ‘global’ service in the context of its functionality, even though strictly speaking, it’s a regional resource.

zr79
Oct 17, 2022

there is two VPN: 1. classic VPN 2. HA VPN

Mahmoud_EOption: D
Oct 23, 2022

D is the correct answer, in order to do A you will need VPN., or interconnect

meguminOption: D
Nov 7, 2022

D is ok

vvkdsOption: D
Jan 15, 2023

D looks fine.

salvo007Option: D
Jan 3, 2024

C is wrong. A global vpn is a single region resource. https://cloud.google.com/network-connectivity/docs/vpn/how-to/creating-ha-vpn?hl=it gcloud compute vpn-gateways create GW_NAME \ --network=NETWORK \ --region=REGION \ --stack-type=IP_STACK so D is the answer

santoshchauhanOption: C
Mar 27, 2024

Global Cloud VPN Gateway: This feature allows for the creation of a single VPN gateway that can serve multiple regions within the same VPC network. By creating a global VPN gateway, you can efficiently manage VPN connections from all regions of your VPC to your on-premises network. Simplicity and Efficiency: Using a global gateway simplifies the configuration and management of VPN connections as opposed to maintaining separate regional VPN gateways. It centralizes the VPN endpoint on the Google Cloud side, reducing the complexity of the network setup. Reliable and Secure Communication: The global Cloud VPN Gateway allows for secure, encrypted tunnels between Google Cloud and the on-premises network, ensuring that the application’s inter-regional and on-premises communications are secure.

ccpmadOption: D
Jun 27, 2024

Option C: Create a global VPN gateway and establish VPN tunnels from each region to the on-premises peer gateway. This suggests that a single global VPN gateway manages the tunnels from both regions. Option D: Deploy a VPN gateway in each region and ensure that each region has at least one VPN tunnel to the on-premises peer gateway. This indicates that each region has its own VPN gateway. >Option D ensures that there is a VPN gateway in each region, providing greater redundancy. If a gateway in one region fails, the gateway in the other region remains operational.