3.3 Configuring Cloud DNS. Considerations Include: PROFESSIONAL-CLOUD-NETWORK-ENGINEER Practice Questions (Page 3)

Questions 11–15

1. 11expert · medium

   A company has a public zone for example.com and uses a geolocation routing policy for 'www' with two rules: one for North America pointing to 192.0.2.10 and one for Europe pointing to 198.51.100.20. They also have a default policy pointing to 203.0.113.30. A user in Asia queries www.example.com. What IP address will they receive?

   • A192.0.2.10, because Asia is closer to North America than to Europe.
   • B203.0.113.30, because Asia is not covered by any specific geolocation rule, so the default policy applies.
   • C198.51.100.20, because Asia is in the same continent as Europe.
   • DA random IP from the three, because geolocation routing is not deterministic.
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2. 12foundation · easy

   A DNS administrator needs to add a record that maps a hostname to an IPv6 address in an existing Cloud DNS zone. Which record type should be created?

   • ATXT
   • BAAAA
   • CCNAME
   • DA
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4. 13application · medium

   A company has a private zone in project A (the producer) that contains records for an internal service. Project B (the consumer) has a VPC that needs to resolve those records, but project B does not have its own copy of the zone. The teams want to avoid duplicating records. What should they configure?

   • ACreate a new private zone in project B and manually copy all records from project A.
   • BSet up DNS peering from project B's VPC to the private zone in project A.
   • CMake the zone in project A public so project B can query it over the internet.
   • DUse a DNS server policy in project B to forward queries to project A's DNS server.
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5. 14application · easy

   A company has an internal service that should only be accessible from within their VPC. They want to use a custom domain name (internal.example.com) for this service. They have created a private zone and attached it to the VPC. What record type should they add to the private zone to point the domain to the internal IP of the service?

   • ATXT record
   • BA record
   • CMX record
   • DCNAME record
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6. 15foundation · easy

   What is the role of the external-dns operator in a GKE cluster?

   • ATo manage the GKE cluster's internal DNS resolution
   • BTo automatically create and update Cloud DNS records for GKE services and ingresses
   • CTo encrypt traffic between GKE services
   • DTo load balance traffic between GKE pods
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