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Exam Professional-Cloud-Network-Engineer All Questions
Exam Professional-Cloud-Network-Engineer All Questions

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Google Cloud Platform Professional-Cloud-Network-Engineer Question # 33 Topic 4 Discussion

Professional-Cloud-Network-Engineer Exam Topic 4 Question 33 Discussion:
Question #: 33
Topic #: 4

In your project my-project, you have two subnets in a Virtual Private Cloud (VPC): subnet-a with IP range 10.128.0.0/20 and subnet-b with IP range 172.16.0.0/24. You need to deploy database servers in subnet-a. You will also deploy the application servers and web servers in subnet-b. You want to configure firewall rules that only allow database traffic from the application servers to the database servers. What should you do?


A.

Create network tag app-server and service account sa-db@my-project.iam.gserviceaccount.com. Add the tag to the application servers, and associate the service account with the database servers. Run the following command:

gcloud compute firewall-rules create app-db-firewall-rule \

--action allow \

--direction ingress \

--rules top:3306 \

--source-tags app-server \

--target-service-accounts sa-db@my-<


B.

Create service accounts sa-app@my-project.iam.gserviceaccount.com and sa-db@my-project.iam.gserviceaccount.com. Associate service account sa-app with the application servers, and associate the

service account sa-db with the database servers. Run the following command:

gcloud compute firewall-rules create app-db-firewall-ru

--allow TCP:3306 \

--source-service-accounts sa-app@democloud-idp-

demo.iam.gserv


C.

Create service accounts sa-app@my-project.iam.gserviceaccount.com and sa-db@my-project.iam.gserviceaccount.com. Associate the service account sa-app with the application servers, and associate

the service account sa-db with the database servers. Run the following command:

gcloud compute firewall-rules create app-db-firewall-ru

--allow TCP:3306 \

--source-ranges 10.128.0.0/20 \

--source-service-accounts


D.

Create network tags app-server and db-server. Add the app-server tag to the application servers, and add the db-server tag to the database servers. Run the following command:

gcloud compute firewall-rules create app-db-firewall-rule \

--action allow \

--direction ingress \

--rules tcp:3306 \

--source-ranges 10.128.0.0/20 \

--source-tags app-server \

--target-tags db-server


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