Cloud DNS
In this section, we will look at Cloud DNS and how to configure it with some basics. For the exam, you only need basic knowledge of the Cloud DNS topics. We will look at an overview of Cloud DNS and some key components that you need to understand.
Cloud DNS is a highly scalable fully managed service offered by Google Cloud. You can create both public and private zones using Cloud DNS. Cloud DNS uses an internal metadata server that acts as the DNS resolver for both internal and external resolutions, such as resolving hostnames on the public internet. Every VM instance has a metadata server used for querying instance information – for example, name, ID, startup/shutdown scripts, custom metadata, service account, and so on – and the DNS resolver is set on VMs as part of default DHCP (Dynamic Host Configuration Protocol) leases. Overriding DHCP leases is possible by customizing the DHCP configuration; however, it is not a common pattern.
Cloud DNS also supports...