Quiz IT certification exam

Question 1

Your company's security team tends to use managed services when possible. You need to build a dashboard to show the number of deny hits that occur against configured firewall rules without increasing operational overhead. What should you do?

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Accepted Answer

Configure Firewall Rules Logging. Use Firewall Insights to display the number of hits.

Answer

Configure Firewall Rules Logging. View the logs in Cloud Logging, and create a custom dashboard in Cloud Monitoring to display the number of hits.

Answer

Configure a firewall appliance from the Google Cloud Marketplace. Route all traffic through this appliance, and apply the firewall rules at this layer. Use the firewall appliance to display the number of hits.

Answer

Configure Packet Mirroring on the VPC. Apply a filter with an IP address list of the Denied Firewall rules. Configure an intrusion detection system (IDS) appliance as the receiver to display the number of hits.

Question 2

You are configuring your Google Cloud environment to connect to your on-premises network. Your configuration must be able to reach Cloud Storage APIs and your Google Kubernetes Engine nodes across your private Cloud Interconnect network. You have already configured a Cloud Router with your Interconnect VLAN attachments. You now need to set up the appropriate router advertisement configuration on the Cloud Router. What should you do?

Accepted Answer

Configure the route advertisement to the custom setting, and manually add prefix 199.36.153.8/30 to the list of advertisements. Advertise all visible subnets to the Cloud Router.

Answer

Configure the route advertisement to the default setting.

Answer

On the on-premises router, configure a static route for the storage API virtual IP address which points to the Cloud Router's link-local IP address.

Answer

Configure the route advertisement to the custom setting, and manually add prefix 199.36.153.8/30 to the list of advertisements. Leave all other options as their default settings.

Question 3

You are configuring load balancing for a standard three-tier (web, application, and database) application. You have configured an external HTTP(S) load balancer for the web servers. You need to configure load balancing for the application tier of servers. What should you do?

Accepted Answer

Configure a forwarding rule on the existing load balancer for the application tier.

Answer

Configure equal cost multi-path routing on the application servers.

Answer

Configure a new internal HTTP(S) load balancer for the application tier.

Answer

Configure a URL map on the existing load balancer to route traffic to the application tier.

Question 4

Your organization has a new security policy that requires you to monitor all egress traffic payloads from your virtual machines in region us-west2. You deployed an intrusion detection system (IDS) virtual appliance in the same region to meet the new policy. You now need to integrate the IDS into the environment to monitor all egress traffic payloads from us-west2. What should you do?

Accepted Answer

Enable VPC Flow Logs. Create a sink in Cloud Logging to send filtered egress VPC Flow Logs to the IDS.

Answer

Enable firewall logging, and forward all filtered egress firewall logs to the IDS.

Answer

Create an internal TCP/UDP load balancer for Packet Mirroring, and add a packet mirroring policy filter for egress traffic.

Answer

Create an internal HTTP(S) load balancer for Packet Mirroring, and add a packet mirroring policyfilter for egress traffic.

Question 5

You are developing an HTTP API hosted on a Compute Engine virtual machine instance that must beinvoked only by multiple clients within the same Virtual Private Cloud (VPC). You want clients to beable to get the IP address of the service. What should you do?

Accepted Answer

Ensure that clients use Compute Engine internal DNS by connecting to the instance name with the url https://[INSTANCE_NAME].[ZONE].c.[PROJECT_ID].internal/.

Answer

Reserve a static external IP address and assign it to an HTTP(S) load balancing service's forwardingrule. Clients should use this IP address to connect to the service.

Answer

Reserve a static external IP address and assign it to an HTTP(S) load balancing service's forwardingrule. Then, define an A record in Cloud DNS. Clients should use the name of the A record to connectto the service.

Answer

Ensure that clients use Compute Engine internal DNS by connecting to the instance name with the url https://[API_NAME]/[API_VERSION]/.

Question 6

You recently deployed Cloud VPN to connect your on-premises data canter to Google Cloud. You need to monitor the usage of this VPN and set up alerts in case traffic exceeds the maximum allowed. You need to be able to quickly decide whether to add extra links or move to a Dedicated Interconnect. What should you do?

Accepted Answer

In the Network Intelligence Canter, check for the number of packet drops on the VPN.

Answer

In the Google Cloud Console, use Monitoring Query Language to create a custom alert for bandwidth utilization.

Answer

In the Monitoring section of the Google Cloud Console, use the Dashboard section to select a default dashboard for VPN usage.

Answer

In the VPN section of the Google Cloud Console, select the VPN under hybrid connectivity, and then select monitoring to display utilization on the dashboard.

Question 7

You have applications running in the us-west1 and us-east1 regions. You want to build a highly available VPN that provides 99.99% availability to connect your applications from your project to the cloud services provided by your partner's project while minimizing the amount of infrastructure required. Your partner's services are also in the us-west1 and us-east1 regions. You want to implement the simplest solution. What should you do?

Accepted Answer

Create one Cloud Router and one HA VPN gateway in each region of your VPC and your partner's VPC. Connect your VPN gateways to the partner's gateways. Enable global dynamic routing in each VPC.

Answer

Create one Cloud Router and one HA VPN gateway in the us-west1 region of your VPC. Create one OpenVPN Access Server in each region of your partner's VPC. Connect your VPN gateway to your partner's servers.

Answer

Create one OpenVPN Access Server in each region of your VPC and your partner's VPC. Connect your servers to the partner's servers.

Answer

Create one Cloud Router and one HA VPN gateway in the us-west1 region of your VPC and your partner's VPC. Connect your VPN gateways to the partner's gateways with a pair of tunnels. Enable global dynamic routing in each VPC.

Question 8

You need to create the network infrastructure to deploy a highly available web application in the useast1 and us-west1 regions. The application runs on Compute Engine instances, and it does not require the use of a database. You want to follow Google-recommended practices. What should you do?

Accepted Answer

Create one VPC with one subnet in each region.Create a global load balancer with a static IP address.Enable Cloud CDN and Google Cloud Armor on the load balancer.Create an A record using the IP address of the load balancer in Cloud DNS.

Answer

Create one VPC with one subnet in each region.Create a regional network load balancer in each region with a static IP address.Enable Cloud CDN on the load balancers.Create an A record in Cloud DNS with both IP addresses for the load balancers.

Answer

Create one VPC in each region, and peer both VPCs.Create a global load balancer.Enable Cloud CDN on the load balancer.Create a CNAME for the load balancer in Cloud DNS.

Answer

Create one VPC with one subnet in each region.Create an HTTP(S) load balancer with a static IP address.Choose the standard tier for the network.Enable Cloud CDN on the load balancer.Create a CNAME record using the load balancer's IP address in Cloud DNS.

Question 9

You are the network administrator responsible for hybrid connectivity at your organization. Your developer team wants to use Cloud SQL in the us-west1 region in your Shared VPC. You configured a Dedicated Interconnect connection and a Cloud Router in us-west1, and the connectivity between your Shared VPC and on-premises data center is working as expected. You just created the private services access connection required for Cloud SQL using the reserved IP address range and default settings. However, your developers cannot access the Cloud SQL instance from on-premises. You want to resolve the issue. What should you do?

Accepted Answer

Modify the VPC Network Peering connection used for Cloud SQL, and enable the import and export of routes.Create a custom route advertisement in your Cloud Router to advertise the Cloud SQL IP address range.

Answer

Change the VPC routing mode to global.Create a custom route advertisement in your Cloud Router to advertise the Cloud SQL IP address range.

Answer

Create an additional Cloud Router in us-west2.Create a new Border Gateway Protocol (BGP) peering connection to your on-premises data center.Modify the VPC Network Peering connection used for Cloud SQL, and enable the import and export of routes.

Answer

Change the VPC routing mode to global.Modify the VPC Network Peering connection used for Cloud SQL, and enable the import and export of routes.

Question 10

Your company has separate Virtual Private Cloud (VPC) networks in a single region for two departments: Sales and Finance. The Sales department's VPC network already has connectivity to onpremises locations using HA VPN, and you have confirmed that the subnet ranges do not overlap.You plan to peer both VPC networks to use the same HA tunnels for on-premises connectivity, while providing internet connectivity for the Google Cloud workloads through Cloud NAT. Internet access from the on-premises locations should not flow through Google Cloud. You need to propagate all routes between the Finance department and on-premises locations. What should you do?

Accepted Answer

Peer the two VPCs, and use the default configuration for the Cloud Routers.

Answer

Peer the two VPCs, and use Cloud Router's custom route advertisements to announce the peered VPC network ranges to the on-premises locations.

Answer

Peer the two VPCs. Configure VPC Network Peering to export custom routes from Sales and import custom routes on Finance's VPC network. Use Cloud Router's custom route advertisements to announce a default route to the on-premises locations.

Answer

Peer the two VPCs. Configure VPC Network Peering to export custom routes from Sales and import custom routes on Finance's VPC network. Use Cloud Router's custom route advertisements to announce the peered VPC network ranges to the on-premises locations.

Question 11

You recently noticed a recurring daily spike in network usage in your Google Cloud project. You need to identify the virtual machine (VM) instances and type of traffic causing the spike in traffic utilization while minimizing the cost and management overhead required. What should you do?

Accepted Answer

Configure Packet Mirroring to send all traffic to a VM. Use Wireshark on the VM to identity traffic utilization for each VM in the VPC.

Answer

Enable VPC Flow Logs and send the output to BigQuery for analysis.

Answer

Enable Firewall Rules Logging for all allowed traffic and send the output to BigQuery for analysis.

Answer

Deploy a third-party network appliance and configure it as the default gateway. Use the thirdparty network appliance to identify users with high network traffic.

Question 12

You need to enable Private Google Access for use by some subnets within your Virtual Private Cloud (VPC). Your security team set up the VPC to send all internet-bound traffic back to the on- premises data center for inspection before egressing to the internet, and is also implementing VPC Service Controls in the environment for API-level security control. You have already enabled the subnets for Private Google Access. What configuration changes should you make to enable Private Google Access while adhering to your security team's requirements?

Accepted Answer

Create a private DNS zone with a CNAME record for *.googleapis.com to private.googleapis.com, with an A record painting to Google's private AP address range.Change the custom route that points the default route (0/0) to the default internet gateway as the next hop.

Answer

Create a private DNS zone with a CNAME record for *.googleapis.com to restricted.googleapis.com, with an A record pointing to Google's restricted API address range.Create a custom route that points Google's restricted API address range to the default internet gateway as the next hop.

Answer

Create a private DNS zone with a CNAME record for *.googleapis.com to restricted.googleapis.com, with an A record pointing to Google's restricted API address range.Change the custom route that points the default route (0/0) to the default internet gateway as the next hop.

Answer

Create a private DNS zone with a CNAME record for *.googleapis.com to private.googleapis.com, with an A record pointing to Google's private API address range.Create a custom route that points Google's private API address range to the default internet gateway as the next hop.

Question 13

You have deployed an HTTP(s) load balancer, but health checks to port 80 on the Compute Enginevirtual machine instance are failing, and no traffic is sent to your instances. You want to resolve theproblem. Which commands should you run?

Accepted Answer

gcloud compute firewall-rules create allow-lb --network load-balancer --allow tcp --source-ranges 130.211.0.0/22,35.191.0.0/16 --direction INGRESS

Answer

gcloud compute instances add-access-config instance-1

Answer

gcloud compute firewall-rules create allow-lb --network load-balancer --allow tcp --destinationranges 130.211.0.0/22,35.191.0.0/16 --direction EGRESS

Answer

gcloud compute health-checks update http health-check --unhealthy-threshold 10

Question 14

You deployed a hub-and-spoke architecture in your Google Cloud environment that uses VPC Network Peering to connect the spokes to the hub. For security reasons, you deployed a private Google Kubernetes Engine (GKE) cluster in one of the spoke projects with a private endpoint for the control plane. You configured authorized networks to be the subnet range where the GKE nodes are deployed. When you attempt to reach the GKE control plane from a different spoke project, you cannot access it. You need to allow access to the GKE control plane from the other spoke projects.What should you do?

Accepted Answer

Configure the authorized networks to be the subnet ranges of the other spoke projects.

Answer

Add a firewall rule that allows port 443 from the other spoke projects.

Answer

Enable Private Google Access on the subnet where the GKE nodes are deployed.

Answer

Deploy a proxy in the spoke project where the GKE nodes are deployed and connect to the control plane through the proxy.

Question 15

You recently deployed your application in Google Cloud. You need to verify your Google Cloud network configuration before deploying your on-premises workloads. You want to confirm that your Google Cloud network configuration allows traffic to flow from your cloud resources to your onpremises network. This validation should also analyze and diagnose potential failure points in your Google Cloud network configurations without sending any data plane test traffic. What should you do?

Accepted Answer

Use Network Intelligence Center's Network Topology visualizations.

Answer

Use Network Intelligence Center's Connectivity Tests.

Answer

Enable Packet Mirroring on your application and send test traffic.

Answer

Enable VPC Flow Logs and send test traffic.

Question 16

In your Google Cloud organization, you have two folders: Dev and Prod. You want a scalable and consistent way to enforce the following firewall rules for all virtual machines (VMs) with minimal cost:Port 8080 should always be open for VMs in the projects in the Dev folder.Any traffic to port 8080 should be denied for all VMs in your projects in the Prod folder.What should you do?

Accepted Answer

Create and associate a firewall policy with the Dev folder with a rule to open port 8080. Create and associate a firewall policy with the Prod folder with a rule to deny traffic to port 8080.

Answer

Create a Shared VPC for the Dev projects and a Shared VPC for the Prod projects. Create a VPC firewall rule to open port 8080 in the Shared VPC for Dev. Create a firewall rule to deny traffic to port 8080 in the Shared VPC for Prod.Deploy VMs to those Shared VPCs.

Answer

In all VPCs for the Dev projects, create a VPC firewall rule to open port 8080. In all VPCs for the Prod projects, create a VPC firewall rule to deny traffic to port 8080.

Answer

Use Anthos Config Connector to enforce a security policy to open port 8080 on the Dev VMs and deny traffic to port 8080 on the Prod VMs.

Question 17

You need to configure the Border Gateway Protocol (BGP) session for a VPN tunnel you just created between two Google Cloud VPCs, 10.1.0.0/16 and 172.16.0.0/16. You have a Cloud Router (router-1) in the 10.1.0.0/16 network and a second Cloud Router (router-2) in the 172.16.0.0/16 network.Which configuration should you use for the BGP session?

Accepted Answer

Question 18

Your company's on-premises network is connected to a VPC using a Cloud VPN tunnel. You have a static route of 0.0.0.0/0 with the VPN tunnel as its next hop defined in the VPC. All internet bound traffic currently passes through the on-premises network. You configured Cloud NAT to translate the primary IP addresses of Compute Engine instances in one region. Traffic from those instances will now reach the internet directly from their VPC and not from the on-premises network. Traffic from the virtual machines (VMs) is not translating addresses as expected. What should you do?

Accepted Answer

Lower the TCP Established Connection Idle Timeout for the NAT gateway.

Answer

Add firewall rules that allow ingress and egress of the external NAT IP address, have a target tag that is on the Compute Engine instances, and have a priority value higher than the priority value of the default route to the VPN gateway.

Answer

Add a default static route to the VPC with the default internet gateway as the next hop, the network tag associated with the Compute Engine instances, and a higher priority than the priority of the default route to the VPN tunnel.

Answer

Increase the default min-ports-per-vm setting for the Cloud NAT gateway.

Question 19

You are designing a Partner Interconnect hybrid cloud connectivity solution with geo-redundancy across two metropolitan areas. You want to follow Google-recommended practices to set up the following region/metro pairs:(region 1/metro 1)(region 2/metro 2)What should you do?

Accepted Answer

Create a Cloud Router in region 1 with one VLAN attachment connected to metro1-zone1-x.Create a Cloud Router in region 2 with two VLAN attachments connected to metro2-zone2-x.

Answer

Create a Cloud Router in region 1 with two VLAN attachments connected to metro1-zone1-x.Create a Cloud Router in region 2 with two VLAN attachments connected to metro1-zone2-x.

Answer

Create a Cloud Router in region 1 with one VLAN attachment connected to metro1-zone2-x.Create a Cloud Router in region 2 with one VLAN attachment connected to metro2-zone2-x.

Answer

Create a Cloud Router in region 1 with one VLAN attachment connected to metro1-zone1-x and one VLAN attachment connected to metro1-zone2-x.Create a Cloud Router in region 2 with one VLAN attachment connected to metro2-zone1-x and one VLAN attachment to metro2-zone2-x.

Question 20

You are designing the network architecture for your organization. Your organization has three developer teams: Web, App, and Database. All of the developer teams require access to Compute Engine instances to perform their critical tasks. You are part of a small network and security team that needs to provide network access to the developers. You need to maintain centralized control over network resources, including subnets, routes, and firewalls. You want to minimize operational overhead. How should you design this topology?

Accepted Answer

Configure three Shared VPC host projects, each with a service project: one for Web, one for App, and one for Database.

Answer

Configure a host project with a Shared VPC. Create service projects for Web, App, and Database.

Answer

Configure one VPC for Web, one VPC for App, and one VPC for Database. Configure HA VPN between each VPC.

Answer

Configure one VPC for Web, one VPC for App, and one VPC for Database. Use VPC Network Peering to connect all VPCs in a full mesh.

Question 21

Your company has 10 separate Virtual Private Cloud (VPC) networks, with one VPC per project in a single region in Google Cloud. Your security team requires each VPC network to have private connectivity to the main on-premises location via a Partner Interconnect connection in the same region. To optimize cost and operations, the same connectivity must be shared with all projects. You must ensure that all traffic between different projects, on-premises locations, and the internet can be inspected using the same third-party appliances. What should you do?

Accepted Answer

Configure the third-party appliances with multiple interfaces. Create a hub VPC network for all projects, and create separate VPC networks for on-premises and internet connectivity. Create the relevant routes on the third-party appliances and VPC networks. Use VPC Network Peering to connect all projects' VPC networks to the hub VPC. Export custom routes from the hub VPC and import on all projects' VPC networks.

Answer

Configure the third-party appliances with multiple interfaces and specific Partner Interconnect VLAN attachments per project. Create the relevant routes on the third-party appliances and VPC networks.

Answer

Configure the third-party appliances with multiple interfaces, with each interface connected to a separate VPC network. Create separate VPC networks for on- premises and internet connectivity.Create the relevant routes on the third-party appliances and VPC networks.

Answer

Consolidate all existing projects' subnetworks into a single VPC. Create separate VPC networks for on-premises and internet connectivity. Configure the third-party appliances with multiple interfaces, with each interface connected to a separate VPC network. Create the relevant routes on the thirdparty appliances and VPC networks.

Question 22

You have just deployed your infrastructure on Google Cloud. You now need to configure the DNS to meet the following requirements:Your on-premises resources should resolve your Google Cloud zones.Your Google Cloud resources should resolve your on-premises zones.You need the ability to resolve ".internal" zones provisioned by Google Cloud.What should you do?

Accepted Answer

Configure an outbound server policy, and set your alternative name server to be your on-premises DNS resolver. Configure your on-premises DNS resolver to forward Google Cloud zone queries to Google's public DNS 8.8.8.8.

Answer

Configure both an inbound server policy and outbound DNS forwarding zones with the target as the on-premises DNS resolver. Configure your on-premises DNS resolver to forward Google Cloud zone queries to Google Cloud's DNS resolver.

Answer

Configure an outbound DNS server policy, and set your alternative name server to be your onpremises DNS resolver. Configure your on-premises DNS resolver to forward Google Cloud zone queries to Google Cloud's DNS resolver.

Answer

Configure Cloud DNS to DNS peer with your on-premises DNS resolver. Configure your onpremises DNS resolver to forward Google Cloud zone queries to Google's public DNS 8.8.8.8.

Question 23

Your organization uses a hub-and-spoke architecture with critical Compute Engine instances in your Virtual Private Clouds (VPCs). You are responsible for the design of Cloud DNS in Google Cloud. You need to be able to resolve CloudDNS private zones from your on-premises data center and enable on-premises name resolution from your hub-and-spoke VPC design. What should you do?

Accepted Answer

Configure a DNS policy in the spoke VPCs, and configure your on-premises DNS as an alternate DNS server.Configure the hub VPC with a private zone, and set up DNS peering to each of the spoke VPCs.

Answer

Configure a private DNS zone in the hub VPC, and configure DNS forwarding to the on-premises server.Configure DNS peering from the spoke VPCs to the hub VPC.

Answer

Configure a DNS policy in the hub VPC to allow inbound query forwarding from the spoke VPCs.Configure the spoke VPCs with a private zone, and set up DNS peering to the hub VPC.

Answer

Configure a DNS policy in the hub VPC, and configure the on-premises DNS as an alternate DNS server.Configure the spoke VPCs with a private zone, and set up DNS peering to the hub VPC.

Question 24

You have a Cloud Storage bucket in Google Cloud project XYZ. The bucket contains sensitive dat a. You need to design a solution to ensure that only instances belonging to VPCs under project XYZ can access the data stored in this CloudStorage bucket. What should you do?

Accepted Answer

Configure Cloud Storage with projectPrivate Access Control List (ACL) that gives permission to the project team based on their roles.

Answer

Configure Private Google Access to privately access the Cloud Storage service using private IP addresses.

Answer

Configure a VPC Service Controls perimeter around project XYZ, and include storage.googleapis.com as a restricted service in the service perimeter.

Answer

Configure Private Service Connect to privately access Cloud Storage from all VPCs under project XYZ.

Question 25

You are maintaining a Shared VPC in a host project. Several departments within your company have infrastructure in different service projects attached to the Shared VPC and use Identity and Access Management (IAM) permissions to manage the cloud resources in those projects. VPC Network Peering is also set up between the Shared VPC and a common services VPC that is not in a service project. Several users are experiencing failed connectivity between certain instances in different Shared VPC service projects and between certain instances and the internet. You need to validate the network configuration to identify whether a misconfiguration is the root cause of the problem. What should you do?

Accepted Answer

Run Connectivity Tests from Network Intelligence Center to check connectivity between the affected endpoints in your network and the internet.

Answer

Review the VPC audit logs in Cloud Logging for the affected instances.

Answer

Use Secure Shell (SSH) to connect to the affected Compute Engine instances, and run a series of PING tests to the other affected endpoints and the 8.8.8.8 IPv4 address.

Answer

Enable VPC Flow Logs for all VPCs, and review the logs in Cloud Logging for the affected instances.

Question 26

Your organization has Compute Engine instances in us-east1, us-west2, and us-central1. Your organization also has an existing Cloud Interconnect physical connection in the East Coast of the United States with a single VLAN attachment and Cloud Router in us-east1. You need to provide a design with high availability and ensure that if a region goes down, you still have access to all your other Virtual Private Cloud (VPC) subnets. You need to accomplish this in the most cost-effective manner possible. What should you do?

Accepted Answer

Configure your VPC routing in global mode.Add an additional Cloud Interconnect VLAN attachment in the us-east1 region, and configure a Cloud Router in us-east1.

Answer

Configure your VPC routing in regional mode.Add an additional Cloud Interconnect VLAN attachment in the us-east1 region, and configure a Cloud Router in us-east1.

Answer

Configure your VPC routing in global mode.Add an additional Cloud Interconnect VLAN attachment in the us-west2 region, and configure a Cloud Router in us-west2.

Answer

Configure your VPC routing in regional mode.Add additional Cloud Interconnect VLAN attachments in the us-west2 and us-central1 regions, and configure Cloud Routers in us-west2 and us-central1.

Question 27

You recently configured Google Cloud Armor security policies to manage traffic to your application.You discover that Google Cloud Armor is incorrectly blocking some traffic to your application. You need to identity the web application firewall (WAF) rule that is incorrectly blocking traffic. What should you do?

Accepted Answer

Enable firewall logs, and view the logs in Firewall Insights.

Answer

Enable HTTP(S) Load Balancing logging with sampling rate equal to 1, and view the logs in CloudLogging.

Answer

Enable VPC Flow Logs, and view the logs in Cloud Logging.

Answer

Enable Google Cloud Armor audit logs, and view the logs on the Activity page in the Google Cloud Console.

Question 28

You are the Organization Admin for your company. One of your engineers is responsible for setting up multiple host projects across multiple folders and sharing subnets with service projects. You need to enable the engineer's Identity and Access Management (IAM) configuration to complete their task in the fewest number of steps. What should you do?

Accepted Answer

Set up the engineer with Compute Shared VPC Admin IAM role at the organization level.

Answer

Set up the engineer with Compute Shared VPC Admin IAM role at the folder level.

Answer

Set up the engineer with Compute Shared VPC Admin IAM role and Project IAM Admin role at the folder level.

Answer

Set up the engineer with Compute Shared VPC Admin IAM role and Project IAM Admin role at the organization level.

Question 29

You recently deployed Compute Engine instances in regions us-west1 and us-east1 in a Virtual Private Cloud (VPC) with default routing configurations. Your company security policy mandates that virtual machines (VMs) must not have public IP addresses attached to them. You need to allow your instances to fetch updates from the internet while preventing external access. What should you do?

Accepted Answer

Create a Cloud NAT gateway and Cloud Router in both us-west1 and us-east1.

Answer

Create a single global Cloud NAT gateway and global Cloud Router in the VPC.

Answer

Change the instances' network interface external IP address from None to Ephemeral.

Answer

Create a firewall rule that allows egress to destination 0.0.0.0/0.

Question 30

You are designing a new global application using Compute Engine instances that will be exposed by a global HTTP(S) load balancer. You need to secure your application from distributed denial-of-service and application layer (layer 7) attacks. What should you do?

Accepted Answer

Configure VPC firewall rules to protect the Compute Engine instances against distributed denial-ofservice attacks.

Answer

Configure VPC Service Controls and create a secure perimeter. Define fine-grained perimeter controls and enforce that security posture across your Google Cloud services and projects.

Answer

Configure a Google Cloud Armor security policy in your project, and attach it to the backend service to secure the application.

Answer

Configure hierarchical firewall rules for the global HTTP(S) load balancer public IP address at theorganization level.

Question 31

Your organization's security policy requires that all internet-bound traffic return to your on-premises data center through HA VPN tunnels before egressing to the internet, while allowing virtual machines (VMs) to leverage private Google APIs using private virtual IP addresses 199.36.153.4/30.You need to configure the routes to enable these traffic flows. What should you do?

Accepted Answer

Configure a custom route 0.0.0.0/0 with a priority of 500 whose next hop is the default internet gateway. Configure another custom route 199.36.153.4/30 with priority of 1000 whose next hop is the VPN tunnel back to the on-premises data center.

Answer

Configure a custom route 0.0.0.0/0 with a priority of 1000 whose next hop is the internet gateway.Configure another custom route 199.36.153.4/30 with a priority of 500 whose next hop is the VPN tunnel back to the on-premises data center.

Answer

Announce a 0.0.0.0/0 route from your on-premises router with a MED of 1000. Configure a custom route 199.36.153.4/30 with a priority of 1000 whose next hop is the default internet gateway.

Answer

Announce a 0.0.0.0/0 route from your on-premises router with a MED of 500. Configure another custom route 199.36.153.4/30 with a priority of 1000 whose next hop is the VPN tunnel back to the onpremises data center.

Question 32

Your company has defined a resource hierarchy that includes a parent folder with subfolders for each department. Each department defines their respective project and VPC in the assigned folder and has the appropriate permissions to create Google Cloud firewall rules. The VPCs should not allow traffic to flow between them. You need to block all traffic from any source, including other VPCs, and delegate only the intra-VPC firewall rules to the respective departments.What should you do?

Accepted Answer

Create a VPC firewall rule in each VPC to block traffic from any source, with priority 1000.

Answer

Create a VPC firewall rule in each VPC to block traffic from any source, with priority 0.

Answer

Create two hierarchical firewall policies per department's folder with two rules in each: a highpriority rule that matches traffic from the private CIDRs assigned to the respective VPC and sets the action to allow, and another lower-priority rule that blocks traffic from any other source.

Answer

Create two hierarchical firewall policies per department's folder with two rules in each: a highpriority rule that matches traffic from the private CIDRs assigned to the respective VPC and sets the action to goto_next, and another lower-priority rule that blocks traffic from any other source.

Question 33

You have two Google Cloud projects in a perimeter to prevent data exfiltration. You need to move a third project inside the perimeter; however, the move could negatively impact the existing environment. You need to validate the impact of the change. What should you do?

Accepted Answer

Modify the existing VPC Service Controls policy to include the new project in dry run mode.

Answer

Enable Firewall Rules Logging inside the third project.

Answer

Monitor the Resource Manager audit logs inside the perimeter.

Answer

Enable VPC Flow Logs inside the third project, and monitor the logs for negative impact.

Question 34

You are configuring an HA VPN connection between your Virtual Private Cloud (VPC) and onpremises network. The VPN gateway is named VPN_GATEWAY_1. You need to restrict VPN tunnels created in the project to only connect to your on-premises VPN public IP address: 203.0.113.1/32.What should you do?

Accepted Answer

Configure the Resource Manager constraint constraints/compute.restrictVpnPeerIPs to use an allowList consisting of only the 203.0.113.1/32 address.

Answer

Configure a firewall rule accepting 203.0.113.1/32, and set a target tag equal to VPN_GATEWAY_1.

Answer

Configure a Google Cloud Armor security policy, and create a policy rule to allow 203.0.113.1/32.

Answer

Configure an access control list on the peer VPN gateway to deny all traffic except 203.0.113.1/32, and attach it to the primary external interface.

Question 35

Your company has recently installed a Cloud VPN tunnel between your on-premises data center and your Google Cloud Virtual Private Cloud (VPC). You need to configure access to the Cloud Functions API for your on-premises servers.The configuration must meet the following requirements:Certain data must stay in the project where it is stored and not be exfiltrated to other projects.Traffic from servers in your data center with RFC 1918 addresses do not use the internet to access Google Cloud APIs.All DNS resolution must be done on-premises.The solution should only provide access to APIs that are compatible with VPC Service Controls.What should you do?

Accepted Answer

Create an A record for restricted.googleapis.com using the 199.36.153.4/30 address range.Create a CNAME record for *.googleapis.com that points to the A record.Configure your on-premises routers to use the Cloud VPN tunnel as the next hop for the addresses you used in the A record.Remove the default internet gateway from the VPC where your Cloud VPN tunnel terminates.

Answer

Create an A record for private.googleapis.com using the 199.36.153.8/30 address range.Create a CNAME record for *.googleapis.com that points to the A record.Configure your on-premises routers to use the Cloud VPN tunnel as the next hop for the addresses you used in the A record.Remove the default internet gateway from the VPC where your Cloud VPN tunnel terminates.

Answer

Create an A record for restricted.googleapis.com using the 199.36.153.4/30 address range.Create a CNAME record for *.googleapis.com that points to the A record.Configure your on-premises routers to use the Cloud VPN tunnel as the next hop for the addresses you used in the A record.Configure your on-premises firewalls to allow traffic to the restricted.googleapis.com addresses.

Answer

Create an A record for private.googleapis.com using the 199.36.153.8/30 address range.Create a CNAME record for *.googleapis.com that points to the A record.Configure your on-premises routers to use the Cloud VPN tunnel as the next hop for the addresses you used in the A record.Configure your on-premises firewalls to allow traffic to the private.googleapis.com addresses.

Question 36

You need to configure a Google Kubernetes Engine (GKE) cluster. The initial deployment should have 5 nodes with the potential to scale to 10 nodes. The maximum number of Pods per node is 8. The number of services could grow from 100 to up to 1024. How should you design the IP schema to optimally meet this requirement?

Accepted Answer

Configure a /28 primary IP address range for the node IP addresses. Configure a (25 secondary IP range for the Pods. Configure a /22 secondary IP range for the Services.

Answer

Configure a /28 primary IP address range for the node IP addresses. Configure a /25 secondary IP range for the Pods. Configure a /21 secondary IP range for the Services.

Answer

Configure a /28 primary IP address range for the node IP addresses. Configure a /28 secondary IP range for the Pods. Configure a /21 secondary IP range for the Services.

Answer

Configure a /28 primary IP address range for the node IP addresses. Configure a /24 secondary IP range for the Pads. Configure a /22 secondary IP range for the Services.

Question 37

You are migrating a three-tier application architecture from on-premises to Google Cloud. As a first step in the migration, you want to create a new Virtual Private Cloud (VPC) with an external HTTP(S) load balancer. This load balancer will forward traffic back to the on-premises compute resources that run the presentation tier. You need to stop malicious traffic from entering your VPC and consuming resources at the edge, so you must configure this policy to filter IP addresses and stop cross-site scripting (XSS) attacks. What should you do?

Accepted Answer

Create a Google Cloud Armor policy, and apply it to a backend service that uses an internet network endpoint group (NEG) backend.

Answer

Create a Google Cloud Armor policy, and apply it to a backend service that uses an unmanaged instance group backend.

Answer

Create a hierarchical firewall ruleset, and apply it to the VPC's parent organization resource node.

Answer

Create a VPC firewall ruleset, and apply it to all instances in unmanaged instance groups.

Question 38

You just finished your company's migration to Google Cloud and configured an architecture with 3 Virtual Private Cloud (VPC) networks: one for Sales, one for Finance, and one for Engineering. Every VPC contains over 100 Compute Engine instances, and now developers using instances in the Sales VPC and the Finance VPC require private connectivity between each other. You need to allow communication between Sales and Finance without compromising performance or security. What should you do?

Accepted Answer

Create a VPC Network Peering connection between the Finance VPC and the Sales VPC.

Answer

Configure an HA VPN gateway between the Finance VPC and the Sales VPC.

Answer

Configure the instances that require communication between each other with an external IP address.

Answer

Configure Cloud NAT and a Cloud Router in the Sales and Finance VPCs.

Question 39

You have provisioned a Partner Interconnect connection to extend connectivity from your onpremises data center to Google Cloud. You need to configure a Cloud Router and create a VLAN attachment to connect to resources inside yourVPC. You need to configure an Autonomous System number (ASN) to use with the associated Cloud Router and create the VLAN attachment.What should you do?

Accepted Answer

Use a 2-byte private ASN 64512-65535.

Answer

Use a 4-byte private ASN 4200000000-4294967294.

Answer

Use a public Google ASN 15169.

Answer

Use a public Google ASN 16550.

Question 40

You are configuring a new application that will be exposed behind an external load balancer with both IPv4 and IPv6 addresses and support TCP pass-through on port 443. You will have backends in two regions: us-west1 and us-east1. You want to serve the content with the lowest possible latency while ensuring high availability and autoscaling. Which configuration should you use?

Accepted Answer

Use Network Load Balancing in both regions, and use DNS-based load balancing to direct traffic to the closest region.

Answer

Use global SSL Proxy Load Balancing with backends in both regions.

Answer

Use global TCP Proxy Load Balancing with backends in both regions.

Answer

Use global external HTTP(S) Load Balancing with backends in both regions.

Google Professional Cloud Network Engineer Practice Test 3

Google Professional Cloud Network Engineer Practice Tests

Google Professional Cloud Network Engineer Practice Test 3

Question

Google Professional Cloud Network Engineer Practice Tests

Practice Tests