[2022年07月]更新のGoogle Professional-Cloud-Network-Engineer試験基本問題には解答が付きます [Q23-Q47]

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[2022年07月]更新のGoogle Professional-Cloud-Network-Engineer試験基本問題には解答が付きます

2022年最新の実際に出るGoogle Professional-Cloud-Network-Engineer試験問題集と解答

Google Professional-Cloud-Network-Engineer 認定試験の出題範囲：

トピック	出題範囲
トピック 1	ネットワークリソースの最適化ロードバランサーとCDNの場所ハイブリッドネットワークの設計。相互接続、フェイルオーバー、およびディザスタリカバリ戦略の使用に関する考慮事項
トピック 2	全体的なネットワークアーキテクチャの設計。考慮事項ハイブリッド接続、コンテナネットワーク、高可用性のオプション
トピック 3	GCP仮想プライベートクラウド（VPC）の実装共有VPCの作成と、他のプロジェクトとサブネットを共有する方法の説明
トピック 4	ネットワーク運用の管理と監視 Google KubernetesEngineのコンテナIPアドレス指定計画の設計
トピック 5	共有vs.スタンドアロンVPC相互接続アクセス適切な負荷分散オプションの選択
トピック 6	Google KubernetesEngineクラスターの構成と保守 Google KubernetesEngineクラスターの構成と保守

23、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.

24、You need to restrict access to your Google Cloud load-balanced application so that only specific IP addresses can connect.
What should you do?

Create a secure perimeter using the Access Context Manager feature of VPC Service Controls and restrict access to the source IP range of the allowed clients and Google health check IP ranges.

Create a secure perimeter using VPC Service Controls, and mark the load balancer as a service restricted to the source IP range of the allowed clients and Google health check IP ranges.

Tag the backend instances “application,” and create a firewall rule with target tag “application” and the source IP range of the allowed clients and Google health check IP ranges.

Label the backend instances “application,” and create a firewall rule with the target label “application” and the source IP range of the allowed clients and Google health check IP ranges.

25、An application development team believes their current logging tool will not meet their needs for their new cloud-based product. They want a better tool to capture errors and help them analyze their historical log data. You want to help them find a solution that meets their needs, what should you do?

Send them a list of online resources about logging best practices.

Help them define their requirements and assess viable logging tools.

Help them upgrade their current tool to take advantage of any new features.

Direct them to download and install the Google StackDriver logging agent.

26、You need to establish network connectivity between three Virtual Private Cloud networks, Sales, Marketing, and Finance, so that users can access resources in all three VPCs. You configure VPC peering between the Sales VPC and the Finance VPC. You also configure VPC peering between the Marketing VPC and the Finance VPC. After you complete the configuration, some users cannot connect to resources in the Sales VPC and the Marketing VPC. You want to resolve the problem.
What should you do?

Configure VPC peering in a full mesh.

Alter the routing table to resolve the asymmetric route.

Create network tags to allow connectivity between all three VPCs.

Delete the legacy network and recreate it to allow transitive peering.

27、In your company, two departments with separate GCP projects (code-dev and data-dev) in the same organization need to allow full cross-communication 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? (Choose two.)

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.

Enable firewall rules to allow all ingress traffic from all subnets of project code-dev to all instances in project data-dev, and vice versa.

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

28、You are migrating to Cloud DNS and want to import your BIND zone file.
Which command should you use?

gcloud dns record-sets import ZONE_FILE –zone MANAGED_ZONE

gcloud dns record-sets import ZONE_FILE –replace-origin-ns –zone MANAGED_ZONE

gcloud dns record-sets import ZONE_FILE –zone-file-format –zone MANAGED_ZONE

gcloud dns record-sets import ZONE_FILE –delete-all-existing –zone MANAGED ZONE

29、Your company just completed the acquisition of Altostrat (a current GCP customer). Each company has a separate organization in GCP and has implemented a custom DNS solution. Each organization will retain its current domain and host names until after a full transition and architectural review is done in one year. These are the assumptions for both GCP environments.
* Each organization has enabled full connectivity between all of its projects by using Shared VPC.
* Both organizations strictly use the 10.0.0.0/8 address space for their instances, except for bastion hosts (for accessing the instances) and load balancers for serving web traffic.
* There are no prefix overlaps between the two organizations.
* Both organizations already have firewall rules that allow all inbound and outbound traffic from the 10.0.0.0/8 address space.
* Neither organization has Interconnects to their on-premises environment.
You want to integrate networking and DNS infrastructure of both organizations as quickly as possible and with minimal downtime.
Which two steps should you take? (Choose two.)

Provision Cloud Interconnect to connect both organizations together.

Set up some variant of DNS forwarding and zone transfers in each organization.

Connect VPCs in both organizations using Cloud VPN together with Cloud Router.

Use Cloud DNS to create A records of all VMs and resources across all projects in both organizations.

Create a third organization with a new host project, and attach all projects from your company and Altostrat to it using shared VPC.

30、Your company’s web server administrator is migrating on-premises backend servers for an application to GCP.
Libraries and configurations differ significantly across these backend servers. The migration to GCP will be lift- and-shift, and all requests to the servers will be served by a single network load balancer frontend. You want to use a GCP-native solution when possible.
How should you deploy this service in GCP?

Create a managed instance group from one of the images of the on-premises servers, and link this instance group to a target pool behind your load balancer.

Create a target pool, add all backend instances to this target pool, and deploy the target pool behind your load balancer.

Deploy a third-party virtual appliance as frontend to these servers that will accommodate the significant differences between these backend servers.

Use GCP’s ECMP capability to load-balance traffic to the backend servers by installing multiple equal- priority static routes to the backend servers.

31、You are trying to update firewall rules in a shared VPC for which you have been assigned only Network Admin permissions. You cannot modify the firewall rules. Your organization requires using the least privilege necessary.
Which level of permissions should you request?

Security Admin privileges from the Shared VPC Admin.

Service Project Admin privileges from the Shared VPC Admin.

Shared VPC Admin privileges from the Organization Admin.

Organization Admin privileges from the Organization Admin.

32、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.

33、You want to use Cloud Interconnect to connect your on-premises network to a GCP VPC. You cannot meet Google at one of its point-of-presence (POP) locations, and your on-premises router cannot run a Border Gateway Protocol (BGP) configuration.
Which connectivity model should you use?

Direct Peering

Dedicated Interconnect

Partner Interconnect with a layer 2 partner

Partner Interconnect with a layer 3 partner

34、You want to set up two Cloud Routers so that one has an active Border Gateway Protocol (BGP) session, and the other one acts as a standby.
Which BGP attribute should you use on your on-premises router?

AS-Path

Community

Local Preference

Multi-exit Discriminator

35、You want to create a service in GCP using IPv6.
What should you do?

Create the instance with the designated IPv6 address.

Configure a TCP Proxy with the designated IPv6 address.

Configure a global load balancer with the designated IPv6 address.

Configure an internal load balancer with the designated IPv6 address.

36、You want to create a service in GCP using IPv6.
What should you do?

Create the instance with the designated IPv6 address.

Configure a TCP Proxy with the designated IPv6 address.

Configure a global load balancer with the designated IPv6 address.

Configure an internal load balancer with the designated IPv6 address.

37、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.

38、Your end users are located in close proximity to us-east1 and europe-west1. Their workloads need to communicate with each other. You want to minimize cost and increase network efficiency.
How should you design this topology?

Create 2 VPCs, each with their own regions and individual subnets. Create 2 VPN gateways to establish connectivity between these regions.

Create 2 VPCs, each with their own region and individual subnets. Use external IP addresses on the instances to establish connectivity between these regions.

Create 1 VPC with 2 regional subnets. Create a global load balancer to establish connectivity between the regions.

Create 1 VPC with 2 regional subnets. Deploy workloads in these subnets and have them communicate using private RFC1918 IP addresses.

39、You are using a third-party next-generation firewall to inspect traffic. You created a custom route of 0.0.0.0/0 to route egress traffic to the firewall. You want to allow your VPC instances without public IP addresses to access the BigQuery and Cloud Pub/Sub APIs, without sending the traffic through the firewall.
Which two actions should you take? (Choose two.)

Turn on Private Google Access at the subnet level.

Turn on Private Google Access at the VPC level.

Turn on Private Services Access at the VPC level.

Create a set of custom static routes to send traffic to the external IP addresses of Google APIs and services via the default internet gateway.

Create a set of custom static routes to send traffic to the internal IP addresses of Google APIs and services via the default internet gateway.

40、You create a Google Kubernetes Engine private cluster and want to use kubectl to get the status of the pods. In one of your instances you notice the master is not responding, even though the cluster is up and running.
What should you do to solve the problem?

Assign a public IP address to the instance.

Create a route to reach the Master, pointing to the default internet gateway.

Create the appropriate firewall policy in the VPC to allow traffic from Master node IP address to the instance.

Create the appropriate master authorized network entries to allow the instance to communicate to the master.

41、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 Google Group for the WebServices Team.

Create a G Suite Domain 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.

42、You are designing a Google Kubernetes Engine (GKE) cluster for your organization. The current cluster size is expected to host 10 nodes, with 20 Pods per node and 150 services. Because of the migration of new services over the next 2 years, there is a planned growth for 100 nodes, 200 Pods per node, and 1500 services. You want to use VPC-native clusters with alias IP ranges, while minimizing address consumption.
How should you design this topology?

Create a subnet of size/25 with 2 secondary ranges of: /17 for Pods and /21 for Services.
Create a VPC-native cluster and specify those ranges.

Create a subnet of size/28 with 2 secondary ranges of: /24 for Pods and /24 for Services.
Create a VPC-native cluster and specify those ranges. When the services are ready to be deployed, resize the subnets.

Use gcloud container clusters create [CLUSTER NAME]–enable-ip-alias to create a VPC-native cluster.

Use gcloud container clusters create [CLUSTER NAME] to create a VPC-native cluster.

43、Your developer group works on a set of VM’s frequently throughout the day. To save costs, you terminate the VM when it is not in use. However, you need to preserve the contents of the disk when the VM is terminated so users can resume where they left off when a new one is created.
What is the most cost-effective way to do? (Choose two)

Set the disk to no-auto-delete to preserve contents.

Back up the disk contents to Cloud Storage before deleting.

When not in use, only stop the instance instead of deleting it.

Take a snapshot of the disk before terminating the VM.

44、You have recently been put in charge of managing identity and access management for your organization. You have several projects and want to use scripting and automation wherever possible. You want to grant the editor role to a project member.
Which two methods can you use to accomplish this? (Choose two.)

GetIamPolicy() via REST API

setIamPolicy() via REST API

gcloud pubsub add-iam-policy-binding Sprojectname –member user:Susername –role roles/editor

gcloud projects add-iam-policy-binding Sprojectname –member user:Susername –role roles/editor

Enter an email address in the Add members field, and select the desired role from the drop-down menu in the GCP Console.

45、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?

HTTP(S) load balancer

Network load balancer

Internal load balancer

TCP/SSL proxy load balancer

46、You decide to set up Cloud NAT. After completing the configuration, you find that one of your instances is not using the Cloud NAT for outbound NAT.
What is the most likely cause of this problem?

The instance has been configured with multiple interfaces.

An external IP address has been configured on the instance.

You have created static routes that use RFC1918 ranges.

The instance is accessible by a load balancer external IP address.

47、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-pathto a specific URL used for health checking, and set proxy-headerto PROXY_V1.

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

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

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