You are setting up a Bare Metal Solution environment. You need to update the operating system to the latest version. You need to connect the Bare Metal Solution environment to the internet so you can receive software updates. What should you do?
A.
Setup a static external IP address in your VPC network.
B.
Set up bring your own IP (BYOIP) in your VPC.
C.
Set up a Cloud NAT gateway on the Compute Engine VM.
A Cloud NAT gateway is not installed on a compute engine VM. Cloud NAT is a managed service. Cloud NAT gateways are a component of the cloud NAT service.
Therefore, D is the most appropriate and efficient solution.
The Bare Metal Solution environment does not have public IP addresses for security reasons, so it requires a Cloud NAT (Network Address Translation) service to enable secure outbound internet access. Cloud NAT allows private resources, such as the Bare Metal Solution environment, to connect to the internet for software updates without exposing them to the internet.
According to the official documentation provided at Bare Metal Solution setup, the recommended method for providing internet access to your Bare Metal Solution (BMS) environment—particularly for downloading operating system updates—is to use a Cloud NAT gateway.
https://cloud.google.com/bare-metal/docs/bms-setup#bms-access-options
Note: Cloud NAT feature doesn't support transitive endpoints thus it can not be used standalone to provide the internet access to the BMS server. Compute Engine VM must be used along with Cloud NAT.
Knows the difference between Cloud NAT Services and Cloud NAT Gateway,
Cloud NAT services - lets your VMs and container pods create outbound connections to the internet or to other Virtual Private Cloud (VPC) networks.
Cloud NAT Gateway - Cloud NAT uses NAT gateway to manage the connections.
Also, Cloud NAT gateway is region and VPC network specific, we can use cloud NAT mapping to a VM instance , not the gateway itself.
https://cloud.google.com/bare-metal/docs/bms-setup?hl=en#bms-access-internet-vm-nat
offers 3 options all of them involve Compute Engine VM and CloudNAT. so C
C - The following instructions set up a NAT gateway on a Compute Engine VM to connect the servers in a Bare Metal Solution environment to the internet for purposes such as receiving software updates
C - The following instructions set up a NAT gateway on a Compute Engine VM to connect the servers in a Bare Metal Solution environment to the internet for purposes such as receiving software updates
C - https://cloud.google.com/bare-metal/docs/bms-setup?hl=en#bms-access-internet-vm-nat
The docs specifically says "Setting up a NAT gateway on a Compute Engine VM" is the way to give BMS internet access.
Correct answer is D. Option C (setting up a Cloud NAT gateway on a Compute Engine VM) is not a recommended approach for providing internet access to your Bare Metal Solution environment
D:
Cloud NAT is a network address translation (NAT) service that allows you to connect your Bare Metal Solution environment to the internet without having to assign a public IP address to each machine. This is the best option for you because it is the most secure and easiest way to connect your Bare Metal Solution environment to the internet.
https://cloud.google.com/bare-metal/docs/bms-setup#bms-access-options
https://cloud.google.com/bare-metal/docs/bms-setup#bms-access-internet
The BMS documentation mentions the Cloud NAT service as an option but the provided example involves manually deploying a NAT gateway on a GCE machine, without explaining why you would need this option as opposed to the managed NAT service. However there are no limitations mentioned, so I take it both options are valid.
In this question, there is no mention of an existing GCE machine, therefore a managed NAT service is the simplest option, which avoids additional infrastructure - hence D is my choice.
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