Free PROFESSIONAL CLOUD NETWORK ENGINEER Exam Braindumps
Professional Cloud Network Engineer Questions 76–80 (page: 17)

Updated On: 10-Feb-2026

One instance in your VPC is configured to run with a private IP address only. You want to ensure that even if this instance is deleted, its current private IP address will not be automatically assigned to a different instance.

In the GCP Console, what should you do?

  1. Assign a public IP address to the instance.
  2. Assign a new reserved internal IP address to the instance.
  3. Change the instance's current internal IP address to static.
  4. Add custom metadata to the instance with key internal-address and value reserved.

Answer(s): C



After a network change window, one of your company's applications stops working. The application uses an on- premises database server that no longer receives any traffic from the application. The database server IP address is 10.2.1.25. You examine the change request, and the only change is that 3 additional VPC subnets were created. The new VPC subnets created are 10.1.0.0/16, 10.2.0.0/16, and 10.3.1.0/24. The on-premises router is advertising 10.0.0.0/8.

What is the most likely cause of this problem?

  1. The less specific VPC subnet route is taking priority.
  2. The more specific VPC subnet route is taking priority.
  3. The on-premises router is not advertising a route for the database server.
  4. A cloud firewall rule that blocks traffic to the on-premises database server was created during the change.

Answer(s): B



You need to create a new VPC network that allows instances to have IP addresses in both the 10.1.1.0/24 network and the 172.16.45.0/24 network.

What should you do?

  1. Configure global load balancing to point 172.16.45.0/24 to the correct instance.
  2. Create unique DNS records for each service that sends traffic to the desired IP address.
  3. Configure an alias-IP range of 172.16.45.0/24 on the virtual instances within the VPC subnet of 10.1.1.0/24.
  4. Use VPC peering to allow traffic to route between the 10.1.0.0/24 network and the 172.16.45.0/24 network.

Answer(s): C



You are deploying a global external TCP load balancing solution and want to preserve the source IP address of the original layer 3 payload.

Which type of load balancer should you use?

  1. HTTP(S) load balancer
  2. Network load balancer
  3. Internal load balancer
  4. TCP/SSL proxy load balancer

Answer(s): D



Your company has a single Virtual Private Cloud (VPC) network deployed in Google Cloud with access from your on-premises network using Cloud Interconnect. You must configure access only to Google APIs and services that are supported by VPC Service Controls through hybrid connectivity with a service level agreement (SLA) in place.
What should you do?

  1. Configure the existing Cloud Routers to advertise the Google API's public virtual IP addresses.
  2. Use Private Google Access for on-premises hosts with restricted.googleapis.com virtual IP addresses.
  3. Configure the existing Cloud Routers to advertise a default route, and use Cloud NAT to translate traffic from your on-premises network.
  4. Add Direct Peering links, and use them for connectivity to Google APIs that use public virtual IP addresses.

Answer(s): B



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