Objective 3.3
PCNEConfiguring Cloud DNS
Objective 3.3 sits in Configuring managed network services, which carries 16% of the Cloud Network Engineer exam. The questions below are original, written from the official objective title above, and each explanation cites the Google Cloud page it rests on.
Objective title verbatim from the official objectives. Google Cloud exam page ↗
A worked example
Shown solved, with the whole explanation open: this is what every question here carries.
A team configures a forwarding zone whose target name server is given as a domain name rather than an address. How many forwarding targets may that zone list?
Correct.
Concept
Specifying a target by name shifts the fan-out into resolution time, so the configuration itself is held to a single entry.
Why C
When an FQDN is used as the target name server, only a single forwarding target may be configured, and that name can resolve to as many as 50 IP addresses.
Source
DNS zones overview, checked August 2026If you use an FQDN as the target name server, review the following items: You can only have a single forwarding target. FQDN target resolution through another forwarding zone isn't supported. You can't use an FQDN as an alternative name server in server policies. An FQDN target can resolve to up to 50 associated IP addresses. Any resolved addresses over 50 are truncated.
Now you: objective 3.3 questions
No account needed. The explanation opens when you answer.
Sample question 1 of 3
An engineer selects private routing on a forwarding zone and then lists a public resolver on the internet as one of its targets. What does that combination produce?
Sample question 2 of 3
Two private zones authorized to the same network cover example.com and dev.example.com. A VM queries api.dev.example.com. Which zone answers it?
Sample question 3 of 3
An on-premises network reaches vpc-net-a over Cloud Interconnect, and vpc-net-b peers with vpc-net-a and imports its custom routes. A VM in vpc-net-b cannot resolve through a forwarding zone whose targets are on-premises. What accounts for that?
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Read the sources
These are the official pages the questions above cite. Reading them is studying the objective from the primary source, which is what the explanations point you toward anyway.