Exam Professional Cloud Network Engineer topic 1 question 158 discussion

Actual exam question from Google's Professional Cloud Network Engineer

Question #: 158
Topic #: 1

[All Professional Cloud Network Engineer Questions]

You are deploying an application that runs on Compute Engine instances. You need to determine how to expose your application to a new customer. You must ensure that your application meets the following requirements:

• Maps multiple existing reserved external IP addresses to the instance
• Processes IP Encapsulating Security Payload (ESP) traffic

What should you do?

A. Configure a target pool, and create protocol forwarding rules for each external IP address.
B. Configure a backend service, and create an external network load balancer for each external IP address.
C. Configure a target instance, and create a protocol forwarding rule for each external IP address to be mapped to the instance.
D. Configure the Compute Engine instances’ network interface external IP address from None to Ephemeral. Add as many external IP addresses as required.

Show Suggested Answer

Suggested Answer: C 🗳️

by Mithung30 at Dec. 14, 2023, 9:20 a.m.

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ExamQnA

Highly Voted 1 year, 6 months ago

Selected Answer: C

Protocol forwarding uses a regional forwarding rule to deliver packets of a specific protocol to a single virtual machine (VM) instance. The forwarding rule can have an internal or an external IP address. Protocol forwarding delivers packets while preserving the destination IP address of the forwarding rule. The forwarding rule references an object called a target instance, which, in turn, references a single VM instance https://cloud.google.com/load-balancing/docs/protocol-forwarding#target-instances

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