Google Prof Cloud Network - pt 4

Your company has a security team that manages firewalls and SSL certificates. It also has a networking team that manages the networking resources. The networking team needs to be able to read firewall rules, but should not be able to create, modify, or delete them. How should you set up permissions for the networking team?

• Assign members of the networking team the compute.networkUser role.

• Assign members of the networking team the compute.networkAdmin role.

• Assign members of the networking team a custom role with only the compute.networks.* and the compute.firewalls.list permissions.

• Assign members of the networking team the compute.networkViewer role, and add the compute.networks.use permission.

You have created an HTTP(S) load balanced service. You need to verify that your backend instances are responding properly. How should you configure the health check?

• Set request-path to a specific URL used for health checking, and set proxy-header to PROXY_V1.

• Set request-path to a specific URL used for health checking, and set host to include a custom host header that identifies the health check.

• Set request-path to a specific URL used for health checking, and set response to a string that the backend service will always return in the response body.

• Set proxy-header to the default value, and set host to include a custom host header that identifies the health check.

You need to give each member of your network operations team least-privilege access to create, modify, and delete Cloud Interconnect VLAN attachments. What should you do?

• Assign each user the editor role.

• Assign each user the compute.networkAdmin role.

• Give each user the following permissions only: compute.interconnectAttachments.create, compute.interconnectAttachments.get.

• Give each user the following permissions only: compute.interconnectAttachments.create, compute.interconnectAttachments.get, compute.routers.create, compute.routers.get, compute.routers.update.

You have an application that is running in a managed instance group. Your development team has released an updated instance template which contains a new feature which was not heavily tested. You want to minimize impact to users if there is a bug in the new template. How should you update your instances?

• Manually patch some of the instances, and then perform a rolling restart on the instance group.

• Using the new instance template, perform a rolling update across all instances in the instance group. Verify the new feature once the rollout completes.

• Deploy a new instance group and canary the updated template in that group. Verify the new feature in the new canary instance group, and then update the original instance group.

• Perform a canary update by starting a rolling update and specifying a target size for your instances to receive the new template. Verify the new feature on the canary instances, and then roll forward to the rest of the instances.

You have deployed a proof-of-concept application by manually placing instances in a single Compute Engine zone. You are now moving the application to production, so you need to increase your application availability and ensure it can autoscale. How should you provision your instances?

• Create a single managed instance group, specify the desired region, and select Multiple zones for the location.

• Create a managed instance group for each region, select Single zone for the location, and manually distribute instances across the zones in that region.

• Create an unmanaged instance group in a single zone, and then create an HTTP load balancer for the instance group.

• Create an unmanaged instance group for each zone, and manually distribute the instances across the desired zones.

You have a storage bucket that contains two objects. Cloud CDN is enabled on the bucket, and both objects have been successfully cached. Now you want to make sure that one of the two objects will not be cached anymore, and will always be served to the internet directly from the origin. What should you do?

• Ensure that the object you don't want to be cached anymore is not shared publicly

• Create a new storage bucket, and move the object you don't want to be checked anymore inside it. Then edit the bucket setting and enable the private attribute.

• Add an appropriate lifecycle rule on the storage bucket containing the two objects.

• Add a Cache-Control entry with value private to the metadata of the object you don't want to be cached anymore. Invalidate all the previously cached copies.

Your company offers a popular gaming service. Your instances are deployed with private IP addresses, and external access is granted through a global load balancer. You have recently engaged a traffic-scrubbing service and want to restrict your origin to allow connections only from the traffic-scrubbing service. What should you do?

• Create a Cloud Armor Security Policy that blocks all traffic except for the traffic-scrubbing service.

• Create a VPC Firewall rule that blocks all traffic except for the traffic-scrubbing service

• Create a VPC Service Control Perimeter that blocks all traffic except for the traffic-scrubbing service.

• Create IPTables firewall rules that block all traffic except for the traffic-scrubbing service.

How should you provision the connectivity solution?

• Provision a Partner Interconnect through your ISP.

• Provision a Dedicated Interconnect instead of a VPN.

• Create multiple VPN tunnels to account for the packet losses, and increase bandwidth using ECMP.

• Use network compression over your VPN to increase the amount of data you can send over your VPN.

Your company has just launched a new critical revenue-generating web application. You deployed the application for scalability using managed instance groups, autoscaling, and a network load balancer as frontend. One day, you notice severe bursty traffic that the caused autoscaling to reach the maximum number of instances, and users of your application cannot complete transactions. After an investigation, you think it as a DDOS attack. You want to quickly restore user access to your application and allow successful transactions while minimizing cost. Which two steps should you take? (Choose two.)

• Use Cloud Armor to blacklist the attacker's IP addresses.

• Increase the maximum autoscaling backend to accommodate the severe bursty traffic.

• Create a global HTTP(s) load balancer and move your application backend to this load balancer.

• Shut down the entire application in GCP for a few hours. The attack will stop when the application is offline.

• SSH into the backend compute engine instances, and view the auth logs and syslogs to further understand the nature of the attack.

You are creating a new application and require access to Cloud SQL from VPC instances without public IP addresses. Which two actions should you take? (Choose two.)

• Activate the Service Networking API in your project.

• Activate the Cloud Datastore API in your project.

• Create a private connection to a service producer.

• Create a custom static route to allow the traffic to reach the Cloud SQL API.

• Enable Private Google Access.