Google Professional-Cloud-Network-Engineer Exam Practice Questions Answers

Google Cloud Certified - Professional Cloud Network Engineer Questions and Answers

Question 1

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?

Options:

• 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 2

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?

Options:

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.

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?

Options:

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

You successfully provisioned a single Dedicated Interconnect. The physical connection is at a colocation facility closest to us-west2. Seventy-five percent of your workloads are in us-east4, and the remaining twenty-five percent of your workloads are in us-central1. All workloads have the same network traffic profile. You need to minimize data transfer costs when deploying VLAN attachments. What should you do?

Options:

Keep the existing Dedicated interconnect. Deploy a VLAN attachment to a Cloud Router in us-west2, and use VPC global routing to access workloads in us-east4 and us-central1.

Keep the existing Dedicated Interconnect. Deploy a VLAN attachment to a Cloud Router in us-east4, and deploy another VLAN attachment to a Cloud Router in us-central1.

Order a new Dedicated Interconnect for a colocation facility closest to us-east4, and use VPC global routing to access workloads in us-central1.

Order a new Dedicated Interconnect for a colocation facility closest to us-central1, and use VPC global routing to access workloads in us-east4.

Question 5

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?

Options:

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

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

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

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

Question 6

You are configuring an HA VPN connection between your Virtual Private Cloud (VPC) and on-premises 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?

Options:

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

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

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

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 7

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?

Options:

Question 8

You are designing a new application that has backends internally exposed on port 800. The application will be exposed externally using both IPv4 and IPv6 via TCP on port 700. You want to ensure high availability for this application. What should you do?

Options:

Create a network load balancer that used backend services containing one instance group with two instances.

Create a network load balancer that uses a target pool backend with two instances.

Create a TCP proxy that uses a zonal network endpoint group containing one instance.

Create a TCP proxy that uses backend services containing an instance group with two instances.

Question 9

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?

Options:

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.

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.

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.

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 10

You work for a multinational enterprise that is moving to GCP.

These are the cloud requirements:

• An on-premises data center located in the United States in Oregon and New York with Dedicated Interconnects connected to Cloud regions us-west1 (primary HQ) and us-east4 (backup)

• Multiple regional offices in Europe and APAC

• Regional data processing is required in europe-west1 and australia-southeast1

• Centralized Network Administration Team

Your security and compliance team requires a virtual inline security appliance to perform L7 inspection for URL filtering. You want to deploy the appliance in us-west1.

What should you do?

Options:

• Create 2 VPCs in a Shared VPC Host Project.• Configure a 2-NIC instance in zone us-west1-a in the Host Project.• Attach NIC0 in VPC #1 us-west1 subnet of the Host Project.• Attach NIC1 in VPC #2 us-west1 subnet of the Host Project.• Deploy the instance.• Configure the necessary routes and firewall rules to pass traffic through the instance.

• Create 2 VPCs in a Shared VPC Host Project.• Configure a 2-NIC instance in zone us-west1-a in the Service Project.• Attach NIC0 in VPC #1 us-west1 subnet of the Host Project.• Attach NIC1 in VPC #2 us-west1 subnet of the Host Project.• Deploy the instance.• Configure the necessary routes and firewall rules to pass traffic through the instance.

• Create 1 VPC in a Shared VPC Host Project.• Configure a 2-NIC instance in zone us-west1-a in the Host Project.• Attach NIC0 in us-west1 subnet of the Host Project.• Attach NIC1 in us-west1 subnet of the Host Project• Deploy the instance.• Configure the necessary routes and firewall rules to pass traffic through the instance.

• Create 1 VPC in a Shared VPC Service Project.• Configure a 2-NIC instance in zone us-west1-a in the Service Project.• Attach NIC0 in us-west1 subnet of the Service Project.• Attach NIC1 in us-west1 subnet of the Service Project• Deploy the instance.• Configure the necessary routes and firewall rules to pass traffic through the instance.

Question 11

You have configured Cloud CDN using HTTP(S) load balancing as the origin for cacheable content. Compression is configured on the web servers, but responses served by Cloud CDN are not compressed.

What is the most likely cause of the problem?

Options:

You have not configured compression in Cloud CDN.

You have configured the web servers and Cloud CDN with different compression types.

The web servers behind the load balancer are configured with different compression types.

You have to configure the web servers to compress responses even if the request has a Via header.

Question 12

You are designing an IP address scheme for new private Google Kubernetes Engine (GKE) clusters. Due to IP address exhaustion of the RFC 1918 address space In your enterprise, you plan to use privately used public IP space for the new clusters. You want to follow Google-recommended practices. What should you do after designing your IP scheme?

Options:

Create the minimum usable RFC 1918 primary and secondary subnet IP ranges for the clusters. Re-use the secondary address range for the pods across multiple private GKE clusters

Create the minimum usable RFC 1918 primary and secondary subnet IP ranges for the clusters Re-use the secondary address range for the services across multiple private GKE clusters

Create privately used public IP primary and secondary subnet ranges for the clusters. Create a private GKE cluster with the following options selected and

Create privately used public IP primary and secondary subnet ranges for the clusters. Create a private GKE cluster With the following options selected --disable-default-snat, —enable-ip-alias, and—enable-private-nodes

Answer:

Explanation:

This answer follows the Google-recommended practices for using privately used public IP (PUPI) addresses for GKE Pod address blocks1. The benefits of this approach are:

It allows you to use any public IP addresses that are not owned by Google or your organization for your Pods, which can help mitigate address exhaustion in your enterprise.
It prevents any external traffic from reaching your Pods, as Google Cloud does not route PUPI addresses to the internet or to other VPC networks by default.
It enables you to use VPC Network Peering to connect your GKE cluster to other VPC networks that use different PUPI addresses, as long as you enable the export and import of custom routes for the peering connection.
It preserves the fully integrated network model of GKE, where Pods can communicate with nodes and other resources in the same VPC network without NAT.

The options that you need to select when creating a private GKE cluster with PUPI addresses are:

–disable-default-snat: This option disables source NAT for outbound traffic from Pods to destinations outside the cluster’s VPC network. This is necessary to prevent Pods from using RFC 1918 addresses as their source IP addresses, which could cause conflicts with other networks that use the same address space2.
–enable-ip-alias: This option enables alias IP ranges for Pods and Services, which allows you to use separate subnet ranges for them. This is required to use PUPI addresses for Pods1.
–enable-private-nodes: This option creates a private cluster, where nodes do not have external IP addresses and can only communicate with the control plane through a private endpoint. This enhances the security and privacy of your cluster3.

Option A is incorrect because it does not use PUPI addresses for Pods, but rather RFC 1918 addresses. This does not solve the problem of address exhaustion in your enterprise. Option B is incorrect because it reuses the secondary address range for Services across multiple private GKE clusters, which could cause IP conflicts and routing issues. Option C is incorrect because it does not specify the options that are needed to create a private GKE cluster with PUPI addresses.

Question 13

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?

Options:

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.

Question 14

Your organization is implementing a new security policy to control how firewall rules are applied to control flows between virtual machines (VMs). Using Google-recommended practices, you need to set up a firewall rule to enforce strict control of traffic between VM A and VM B. You must ensure that communications flow only from VM A to VM B within the VPC, and no other communication paths are allowed. No other firewall rules exist in the VPC. Which firewall rule should you configure to allow only this communication path?

Options:

Firewall rule direction: ingress

Action: allow

Target: VM B service account

Source ranges: VM A service account

Priority: 1000

Firewall rule direction: ingress

Action: allow

Target: specific VM B tag

Source ranges: VM A tag and VM A source IP address

Priority: 1000

Firewall rule direction: ingress

Action: allow

Target: VM A service account

Source ranges: VM B service account and VM B source IP address

Priority: 100

Firewall rule direction: ingress

Action: allow

Target: specific VM A tag

Source ranges: VM B tag and VM B source IP address

Priority: 100

Question 15

Your company's logo is published as an image file across multiple websites that are hosted by your company You have implemented Cloud CDN, however, you want to improve the performance of the cache hit ratio associated with this image file. What should you do?

Options:

Configure custom cache keys for the backend service that holds the image file, and clear the Host and Protocol checkboxes-

Configure Cloud Storage as a custom origin backend to host the image file, and select multi-region as the location type

Configure versioned IJRLs for each domain to serve users the •mage file before the cache entry expires

Configure the default time to live (TTL) as O for the image file.

Question 16

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

Options:

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

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

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

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

Question 17

Your company is planning a migration to Google Kubernetes Engine. Your application team informed you that they require a minimum of 60 Pods per node and a maximum of 100 Pods per node Which Pod per node CIDR range should you

use?

Options:

/24

/25

/26

/28

Question 18

Your organization is deploying a single project for 3 separate departments. Two of these departments require network connectivity between each other, but the third department should remain in isolation. Your design should create separate network administrative domains between these departments. You want to minimize operational overhead.

How should you design the topology?

Options:

Create a Shared VPC Host Project and the respective Service Projects for each of the 3 separate departments.

Create 3 separate VPCs, and use Cloud VPN to establish connectivity between the two appropriate VPCs.

Create 3 separate VPCs, and use VPC peering to establish connectivity between the two appropriate VPCs.

Create a single project, and deploy specific firewall rules. Use network tags to isolate access between the departments.

Question 19

You are in the process of deploying an internal HTTP(S) load balancer for your web server virtual machine (VM) Instances What two prerequisite tasks must be completed before creating the load balancer?

Choose 2 answers

Options:

Choose a region.

Create firewall rules for health checks

Reserve a static IP address for the load balancer

Determine the subnet mask for a proxy-only subnet.

Determine the subnet mask for Serverless VPC Access.

Question 20

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?

Options:

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.

Question 21

You need to ensure your personal SSH key works on every instance in your project. You want to accomplish this as efficiently as possible.

What should you do?

Options:

Upload your public ssh key to the project Metadata.

Upload your public ssh key to each instance Metadata.

Create a custom Google Compute Engine image with your public ssh key embedded.

Use gcloud compute ssh to automatically copy your public ssh key to the instance.

Question 22

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?

Options:

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.

Question 23

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?

Options:

AS-Path

Community

Local Preference

Multi-exit Discriminator

Question 24

You want to create a service in GCP using IPv6.

What should you do?

Options:

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.

Question 25

You are increasing your usage of Cloud VPN between on-premises and GCP, and you want to support more traffic than a single tunnel can handle. You want to increase the available bandwidth using Cloud VPN.

What should you do?

Options:

Double the MTU on your on-premises VPN gateway from 1460 bytes to 2920 bytes.

Create two VPN tunnels on the same Cloud VPN gateway that point to the same destination VPN gateway IP address.

Add a second on-premises VPN gateway with a different public IP address. Create a second tunnel on the existing Cloud VPN gateway that forwards the same IP range, but points at the new on-premises gateway IP.

Add a second Cloud VPN gateway in a different region than the existing VPN gateway. Create a new tunnel on the second Cloud VPN gateway that forwards the same IP range, but points to the existing on-premises VPN gateway IP address.

Question 26

Your company runs an enterprise platform on-premises using virtual machines (VMS). Your internet customers have created tens of thousands of DNS domains panting to your public IP addresses allocated to the Vtvls Typically, your customers hard-code your IP addresses In their DNS records You are now planning to migrate the platform to Compute Engine and you want to use Bring your Own IP you want to minimize disruption to the Platform What Should you d0?

Options:

Create a VPC and request static external IP addresses from Google Cloud Assagn the IP addresses to the Compute Engine instances. Notify your customers of the new IP addresses so they can update their DNS

Verify ownership of your IP addresses. After the verification, Google Cloud advertises and provisions the IP prefix for you_ Assign the IP addresses to the Compute Engine Instances

Create a VPC With the same IP address range as your on-premises network Asson the IP addresses to the Compute Engine Instances.

Verify ownership of your IP addresses. Use live migration to import the prefix Assign the IP addresses to Compute Engine instances.

Question 27

Your company has a single Virtual Private Cloud (VPC) network deployed in Google Cloud with access from your on-premises network using Cloud Interconnect. You must configure access only to Google APIs and services that are supported by VPC Service Controls through hybrid connectivity with a service level agreement (SLA) in place. What should you do?

Options:

Configure the existing Cloud Routers to advertise the Google API's public virtual IP addresses.

Use Private Google Access for on-premises hosts with restricted.googleapis.com virtual IP addresses.

Configure the existing Cloud Routers to advertise a default route, and use Cloud NAT to translate traffic from your on-premises network.

Add Direct Peering links, and use them for connectivity to Google APIs that use public virtual IP addresses.

Question 28

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?

Options:

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.

Question 29

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?

Options:

Enable Firewall Rules Logging inside the third project.

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

Monitor the Resource Manager audit logs inside the perimeter.

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

Question 30

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.)

Options:

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.

Question 31

You need to restrict access to your Google Cloud load-balanced application so that only specific IP addresses can connect.

What should you do?

Options:

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.

Question 32

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?

Options:

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.

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.

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.

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 on-

premises data center.

Question 33

You built a web application with several containerized microservices. You want to run those microservices on Cloud Run. You must also ensure that the services are highly available to your customers with low latency. What should you do?

Options:

Deploy the Cloud Run services to multiple availability zones. Create a global TCP load balancer. Add the Cloud Run endpoints to its backend service.

Deploy the Cloud Run services to multiple regions. Create serverless network endpoint groups (NEGs) that point to the services. Create a global HTTPS load balancer, and attach the serverless NEGs as backend services of the load balancer.

Deploy the Cloud Run services to multiple availability zones. Create Cloud Endpoints that point to the services. Create a global HTTPS load balancer, and attach the Cloud Endpoints to its backend

Deploy the Cloud Run services to multiple regions. Configure a round-robin A record in Cloud DNS.

Question 34

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?

Options:

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

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

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

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

Question 35

You have deployed a new internal application that provides HTTP and TFTP services to on-premises hosts. You want to be able to distribute traffic across multiple Compute Engine instances, but need to ensure that clients are sticky to a particular instance across both services.

Which session affinity should you choose?

Options:

None

Client IP

Client IP and protocol

Client IP, port and protocol

Question 36

You need to enable Cloud CDN for all the objects inside a storage bucket. You want to ensure that all the object in the storage bucket can be served by the CDN.

What should you do in the GCP Console?

Options:

Create a new cloud storage bucket, and then enable Cloud CDN on it.

Create a new TCP load balancer, select the storage bucket as a backend, and then enable Cloud CDN on the backend.

Create a new SSL proxy load balancer, select the storage bucket as a backend, and then enable Cloud CDN on the backend.

Create a new HTTP load balancer, select the storage bucket as a backend, enable Cloud CDN on the backend, and make sure each object inside the storage bucket is shared publicly.

Question 37

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?

Options:

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.

Change the VPC routing mode to global.

Create a custom route advertisement in your Cloud Router to advertise the Cloud SQL IP address range.

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.

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 38

Your company recently migrated to Google Cloud in a Single region. You configured separate Virtual Private Cloud (VPC) networks for two departments. Department A and Department B. Department A has requested access to resources that are part Of Department Bis VPC. You need to configure the traffic from private IP addresses to flow between the VPCs using multi-NIC virtual machines (VMS) to meet security requirements Your configuration also must

• Support both TCP and UDP protocols

• Provide fully automated failover

• Include health-checks

Require minimal manual Intervention In the client VMS

Which approach should you take?

Options:

Create the VMS In the same zone, and configure static routes With IP addresses as next hops.

Create the VMS in different zones, and configure static routes with instance names as next hops

Create an Instance template and a managed instance group. Configure a Single internal load balancer, and define a custom static route with the Internal TCP/UDP load balancer as the next hop

Create an instance template and a managed instance group. Configure two separate internal TCP/IJDP load balancers for each protocol (TCP!UDP), and configure the client VIVIS to use the internal load balancers' virtual IP addresses

Answer:

Explanation:

The correct answer is D. Create an instance template and a managed instance group. Configure two separate internal TCP/UDP load balancers for each protocol (TCP/UDP), and configure the client VMs to use the internal load balancers’ virtual IP addresses.

This answer is based on the following facts:

Using multi-NIC VMs as network virtual appliances (NVAs) allows you to route traffic between different VPC networks1. You can use NVAs to implement custom network policies and security requirements.
Using an instance template and a managed instance group allows you to create and manage multiple identical NVAs2. You can also use health checks and autoscaling policies to ensure high availability and reliability of your NVAs.
Using internal TCP/UDP load balancers allows you to distribute traffic from client VMs to NVAs based on the protocol and port3. You can also use health checks and failover policies to ensure that only healthy NVAs receive traffic.
Configuring the client VMs to use the internal load balancers’ virtual IP addresses allows you to simplify the routing configuration and avoid manual intervention4. You do not need to create static routes or update them when NVAs are added or removed.

The other options are not correct because:

Option A is not suitable. Creating the VMs in the same zone does not provide high availability or failover. Using static routes with IP addresses as next hops requires manual intervention when NVAs are added or removed.
Option B is not optimal. Creating the VMs in different zones provides high availability, but not failover. Using static routes with instance names as next hops requires manual intervention when NVAs are added or removed.
Option C is not feasible. Creating an instance template and a managed instance group provides high availability and reliability, but using a single internal load balancer does not support both TCP and UDP protocols. You cannot define a custom static route with an internal load balancer as the next hop.

Question 39

You are responsible for designing a new connectivity solution for your organization's enterprise network to access and use Google Workspace. You have an existing Shared VPC with Compute Engine instances in us-west1. Currently, you access Google Workspace via your service provider's internet access. You want to set up a direct connection between your network and Google. What should you do?

Options:

Order a Dedicated Interconnect connection in the same metropolitan area. Create a VLAN attachment, a Cloud Router in us-west1, and a Border Gateway Protocol (BGP) session between your Cloud Router and your router.

Order a Direct Peering connection in the same metropolitan area. Configure a Border Gateway Protocol (BGP) session between Google and your router.

Configure HA VPN in us-west1. Configure a Border Gateway Protocol (BGP) session between your Cloud Router and your on-premises data center.

Order a Carrier Peering connection in the same metropolitan area. Configure a Border Gateway Protocol (BGP) session between Google and your router.

Question 40

You have an application hosted on a Compute Engine virtual machine instance that cannot communicate with a resource outside of its subnet. When you review the flow and firewall logs, you do not see any denied traffic listed.

During troubleshooting you find:

• Flow logs are enabled for the VPC subnet, and all firewall rules are set to log.

• The subnetwork logs are not excluded from Stackdriver.

• The instance that is hosting the application can communicate outside the subnet.

• Other instances within the subnet can communicate outside the subnet.

• The external resource initiates communication.

What is the most likely cause of the missing log lines?

Options:

The traffic is matching the expected ingress rule.

The traffic is matching the expected egress rule.

The traffic is not matching the expected ingress rule.

The traffic is not matching the expected egress rule.

Question 41

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?

Options:

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

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

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.

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 42

Your company has provisioned 2000 virtual machines (VMs) in the private subnet of your Virtual Private Cloud (VPC) in the us-east1 region. You need to configure each VM to have a minimum of 128 TCP connections to a public repository so that users can download software updates and packages over the internet. You need to implement a Cloud NAT gateway so that the VMs are able to perform outbound NAT to the internet. You must ensure that all VMs can simultaneously connect to the public repository and download software updates and packages. Which two methods can you use to accomplish this? (Choose two.)

Options:

Configure the NAT gateway in manual allocation mode, allocate 2 NAT IP addresses, and update the minimum number of ports per VM to 256.

Create a second Cloud NAT gateway with the default minimum number of ports configured per VM to 64.

Use the default Cloud NAT gateway's NAT proxy to dynamically scale using a single NAT IP address.

Use the default Cloud NAT gateway to automatically scale to the required number of NAT IP addresses, and update the minimum number of ports per VM to 128.

Configure the NAT gateway in manual allocation mode, allocate 4 NAT IP addresses, and update the minimum number of ports per VM to 128.

Question 43

You have the following firewall ruleset applied to all instances in your Virtual Private Cloud (VPC):

You need to update the firewall rule to add the following rule to the ruleset:

You are using a new user account. You must assign the appropriate identity and Access Management (IAM) user roles to this new user account before updating the firewall rule. The new user account must be able to apply the update and view firewall logs. What should you do?

Options:

Assign the compute.securityAdmin and logging.viewer rule to the new user account. Apply the new firewall rule with a priority of 50.

Assign the compute.securityAdmin and logging.bucketWriter role to the new user account. Apply the new firewall rule with a priority of 150.

Assign the compute.orgSecurityPolicyAdmin and logging.viewer role to the new user account. Apply the new firewall rule with a priority of 50.

Assign the compute.orgSecurityPolicyAdmin and logging.bucketWriter role to the new user account. Apply the new firewall rule with a priority of 150.

Question 44

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?

Options:

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 45

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?

Options:

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.

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.

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.

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 46

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?

Options:

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 47

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?

Options:

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.

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.

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 third-party appliances and VPC networks.

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.

Question 48

Your company’s Google Cloud-deployed, 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:

/fr/video

/en/video

/es/video

/../video

/fr/audio

/en/audio

/es/audio

/../audio

Which solution should you recommend?

Options:

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 49

You are designing a shared VPC architecture. Your network and security team has strict controls over which routes are exposed between departments. Your Production and Staging departments can communicate with each other, but only via specific networks. You want to follow Google-recommended practices.

How should you design this topology?

Options:

Create 2 shared VPCs within the shared VPC Host Project, and enable VPC peering between them. Use firewall rules to filter access between the specific networks.

Create 2 shared VPCs within the shared VPC Host Project, and create a Cloud VPN/Cloud Router between them. Use Flexible Route Advertisement (FRA) to filter access between the specific networks.

Create 2 shared VPCs within the shared VPC Service Project, and create a Cloud VPN/Cloud Router between them. Use Flexible Route Advertisement (FRA) to filter access between the specific networks.

Create 1 VPC within the shared VPC Host Project, and share individual subnets with the Service Projects to filter access between the specific networks.

Question 50

You recently deployed two network virtual appliances in us-central1. Your network appliances provide connectivity to your on-premises network, 10.0.0.0/8. You need to configure the routing for your Virtual Private Cloud (VPC). Your design must meet the following requirements:

All access to your on-premises network must go through the network virtual appliances.

Allow on-premises access in the event of a single network virtual appliance failure.

Both network virtual appliances must be used simultaneously.

Which method should you use to accomplish this?

Options:

Configure two routes for 10.0.0.0/8 with different priorities, each pointing to separate network virtual appliances.

Configure an internal HTTP(S) load balancer with the two network virtual appliances as backends. Configure a route for 10.0.0.0/8 with the internal HTTP(S) load balancer as the next hop.

Configure a network load balancer for the two network virtual appliances. Configure a route for 10.0.0.0/8 with the network load balancer as the next hop.

Configure an internal TCP/UDP load balancer with the two network virtual appliances as backends. Configure a route for 10.0.0.0/8 with the internal load balancer as the next hop.

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Google Professional-Cloud-Network-Engineer Dumps

Google Cloud Certified - Professional Cloud Network Engineer Questions and Answers

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