2022: Top Multiple Choice Questions Google Cloud Platform Networking

Welcome to your 2022: Top Multiple Choice Questions Google Cloud Platform Networking

Google Cloud Platform (GCP) is a set of cloud computing services supplied by Google that run on the same infrastructure as Google's internal products, such as Google Search, Gmail, Google Drive, and YouTube.It offers a number of modular cloud services, including computing, data storage, data analytics, and machine learning, in addition to a set of management tools. A credit card or bank account number is required for registration.Infrastructure as a service, platform as a service, and serverless computing environments are all available through Google Cloud Platform.

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Question 1: You created a new VPC for your development team. You want to allow access to the resources in this VPC via SSH only. How should you configure your firewall rules?

Create two firewall rules: one to block all traffic with priority 0, and another to allow port 22 with priority 1000.

Create two firewall rules: one to block all traffic with priority 65536, and another to allow port 3389 with priority 1000

Create a single firewall rule to allow port 22 with priority 1000

Create a single firewall rule to allow port 3389 with priority 1000.

Question 2: You need to define an address plan for a future new GKE cluster in your VPC. This will be a VPC native cluster, and the default Pod IP range allocation will be used. You must pre-provision all the needed VPC subnets and their respective IP address ranges before cluster creation. The cluster will initially have a single node, but it will be scaled to a maximum of three nodes if necessary. You want to allocate the minimum number of Pod IP addresses. Which subnet mask should you use for the Pod IP address range?

/21

/22

/23

/24

Question 3: You have created a firewall with rules that only allow traffic over HTTP, HTTPS, and SSH ports. While testing, you specifically try to reach the server over multiple ports and protocols; however, you do not see any denied connections in the firewall logs. You want to resolve the issue. What should you do?

Enable logging on the default Deny Any Firewall Rule

Enable logging on the VM Instances that receive traffic

Create a logging sink forwarding all firewall logs with no filters

Create an explicit Deny Any rule and enable logging on the new rule.

Question 4: In your company, two departments with separate GCP projects (codedev and data-dev) in the same organization need to allow full crosscommunication between all of their virtual machines in GCP. Each department has one VPC in its project and wants full control over their network. Neither department intends to recreate its existing computing resources. You want to implement a solution that minimizes cost. Which two steps should you take?

Connect both projects using Cloud VPN

Connect the VPCs in project code-dev and data-dev using VPC Network Peering.

Enable Shared VPC in one project (e. g., code-dev), and make the second project (e. g., data-dev) a service project

Create a route in the code-dev project to the destination prefixes in project data-dev and use next hop as the default gateway, and vice versa.

Question 5: You are creating an instance group and need to create a new health check for HTTP(s) load balancing. Which two methods can you use to accomplish this?

Create a new health check using the gcloud command line tool.

Create a new health check using the VPC Network section in the GCP Console.

Create a new legacy health check using the gcloud command line tool.

Create a new legacy health check using the Health checks section in the GCP Console.

Question 6: You are in the early stages of planning a migration to GCP. You want to test the functionality of your hybrid cloud design before you start to implement it in production. The design includes services running on a Compute Engine Virtual Machine instance that need to communicate to on-premises servers using private IP addresses. The on-premises servers have connectivity to the internet, but you have not yet established any Cloud Interconnect connections. You want to choose the lowest cost method of enabling connectivity between your instance and on-premises servers and complete the test in 24 hours. Which connectivity method should you choose?

Cloud VPN

50-Mbps Partner VLAN attachment

Dedicated Interconnect with a single VLAN attachment

Dedicated Interconnect, but don't provision any VLAN attachments

Question 7: You want to implement an IPSec tunnel between your on-premises network and a VPC via Cloud VPN. You need to restrict reachability over the tunnel to specific local subnets, and you do not have a device capable of speaking Border Gateway Protocol (BGP). Which routing option should you choose?

Dynamic routing using Cloud Router

Route-based routing using default traffic selectors

Policy-based routing using a custom local traffic selector

Policy-based routing using the default local traffic selector

Question 8: You have enabled HTTP(S) load balancing for your application, and your application developers have reported that HTTP(S) requests are not being distributed correctly to your Compute Engine Virtual Machine instances. You want to find data about how the requests are being distributed. Which is method can accomplish this?

On the Load Balancer details page of the GCP Console, click on the Monitoring tab, select your backend service, and look at the graphs.

In Stackdriver Error Reporting, look for any unacknowledged errors for the Cloud Load Balancers service.

In Stackdriver Monitoring, select Resources > Metrics Explorer and search for https/request_bytes_count metric

In Stackdriver Monitoring, select Resources > Google Cloud Load Balancers and review the Key Metrics graphs in the dashboard.

Question 9: You want to use Partner Interconnect to connect your on-premises network with your VPC. You already have an Interconnect partner. What should you do first?

Ask your Interconnect partner to provision a physical connection to Google.

Create a Partner Interconnect type VLAN attachment in the GCP Console and retrieve the pairing key

Run gcloud compute interconnect attachments partner update / --region - -admin-enabled.

Question 10: You need to centralize the Identity and Access Management permissions and email distribution for the WebServices Team as efficiently as possible. What should you do?

Create a G Suite Domain for the WebServices Team.

Create a Google Group for the WebServices Team

Create a new Cloud Identity Domain for the WebServices Team.

Create a new Custom Role for all members of the WebServices Team.

Question 11: You are using the gcloud command line tool to create a new custom role in a project by copying a predefined role. You receive this error message: INVALID_ARGUMENT: Permission resourcemanager.projects.list is not valid. What should you do?

Add the resourcemanager.projects.get permission, and try again.

Try again with a different role with a new name but the same permissions.

Remove the resourcemanager.projects.list permission, and try again.

Add the resourcemanager.projects.setIamPolicy permission, and try again.

Question 12: 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?

Assign a public IP address to the instance

Assign a new reserved internal IP address to the instance

Change the instance's current internal IP address to static.

Add custom metadata to the instance with key internal-address and value reserved.

Question 13: 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 onpremises router is advertising 10.0.0.0/8. What is the most likely cause of this problem?

The less specific VPC subnet route is taking priority.

The more specific VPC subnet route is taking priority

The on-premises router is not advertising a route for the database server.

A cloud firewall rule that blocks traffic to the on-premises database server was created during the change

Question 14: 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?

Configure global load balancing to point 172.16.45.0/24 to the correct instance.

Create unique DNS records for each service that sends traffic to the desired IP address.

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.

Use VPC peering to allow traffic to route between the 10.1.0.0/24 network and the 172.16.45.0/24 network.

Question 15: You are deploying a global external TCP load balancing solution and want to preserve the source IP address of the original layer 3 payloads. Which type of load balancer should you use?

HTTP(S) load balancer

Network load balancer

Internal load balancer

TCP/SSL proxy load balancer

Question 16: You have configured a Compute Engine virtual machine instance as a NAT gateway. You execute the following command:

You want existing instances to use the new NAT gateway. Which command should you execute?

sudo sysctl -w net.ipv4.ip_forward=1

gcloud compute instances add-tags [existing-instance] --tags no-ip

gcloud builds submit --config=cloudbuild.waml -- substitutions=TAG_NAME=no-ip

gcloud compute instances create example-instance --network customnetwork1 --subnet subnet-us-central --no-address --zone us-central1-a - -image-family debian-9 --image-project debian-cloud --tags no-ip

Question 17: Your company’s Google Cloud-deployed, the streaming application supports multiple languages. The application development team has asked you how they should support splitting audio and video traffic to different backend Google Cloud storage buckets. They want to use URL maps and minimize operational overhead. They are currently using the following directory structure:

Which solution should you recommend?

Rearrange the directory structure, create a URL map and leverage a path rule such as /video/* and /audio/*.

Rearrange the directory structure, create DNS hostname entries for video and audio and leverage a path rule such as /video/* and /audio/*

Leave the directory structure as-is, create a URL map and leverage a path rule such as \/[a-z]{2}\/video and \/[a-z]{2}\/audio.

Leave the directory structure as-is, create a URL map and leverage a path rule such as /*/video and /*/audio.

Question 18: Your on-premises data center has 2 routers connected to your GCP through a VPN on each router. All applications are working correctly; however, all of the traffic is passing across a single VPN instead of being load-balanced across the 2 connections as desired. During troubleshooting you find:

Each on-premises router is configured with the same ASN.
Each on-premises router is configured with the same routes and priorities.
Both on-premises routers are configured with a VPN connected to a single Cloud Router.
The VPN logs have no-proposal-chosen lines when the VPNs are connecting.
BGP session is not established between one on-premises router and the Cloud Router.

What is the most likely cause of this problem?

One of the VPN sessions is configured incorrectly

A firewall is blocking the traffic across the second VPN connection.

You do not have a load balancer to load-balance the network traffic.

BGP sessions are not established between both on-premises routers and the Cloud Router.

Question 19: You need to create a GKE cluster in an existing VPC that is accessible from on-premises. You must meet the following requirements:

IP ranges for pods and services must be as small as possible.
The nodes and the master must not be reachable from the internet.
You must be able to use kubectl commands from on-premises subnets to manage the cluster.

How should you create the GKE cluster?

Create a private cluster that uses VPC advanced routes. Set the pod and service ranges as /24. Set up a network proxy to access the master.

Create a VPC-native GKE cluster using GKE-managed IP ranges. Set the pod IP range as /21 and service IP range as /24. Set up a network proxy to access the master.

Create a VPC-native GKE cluster using user-managed IP ranges. Enable a GKE cluster network policy, set the pod and service ranges as /24. Set up a network proxy to access the master. Enable master authorized networks.

Create a VPC-native GKE cluster using user-managed IP ranges. Enable privateEndpoint on the cluster master. Set the pod and service ranges as /24. Set up a network proxy to access the master. Enable master authorized networks.

Question 20: As the network engineer on a project and you are required to review logs. You have assigned the compute security admin in a GCP project but you are unable to view the logs in Cloud Logging. Following the principle of least principle, which of the following will resolve that?

Assigning the Project Owner role

Assigning the Project Editor role

Assigning the Logging Admin role

Assigning the Logs Viewer role.