Google Professional-Cloud-Network-Engineer Exam Questions Free Practice Test

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Questions # 41:

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

Which two steps should you take? (Choose two.)

Options:

Connect both projects using Cloud VPN.

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

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

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

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

Expert Solution

Questions # 42:

You are designing a hybrid cloud environment for your organization. Your Google Cloud environment is interconnected with your on-premises network using Cloud HA VPN and Cloud Router. The Cloud Router is configured with the default settings. Your on-premises DNS server is located at 192.168.20.88 and is protected by a firewall, and your Compute Engine resources are located at 10.204.0.0/24. Your Compute Engine resources need to resolve on-premises private hostnames using the domain corp.altostrat.com while still resolving Google Cloud hostnames. You want to follow Google-recommended practices. What should you do?

Options:

Create a private forwarding zone in Cloud DNS for ‘corp.altostrat.com’ called corp-altostrat-com that points to 192.168.20.88.

Configure your on-premises firewall to accept traffic from 10.204.0.0/24.

Set a custom route advertisement on the Cloud Router for 10.204.0.0/24

Create a private forwarding zone in Cloud DNS for ‘corp.altostrat.com’ called corp-altostrat-com that points to 192.168 20.88.

Configure your on-premises firewall to accept traffic from 35.199.192.0/19

Set a custom route advertisement on the Cloud Router for 35.199.192.0/19.

Create a private forwarding zone in Cloud DNS for ‘corp .altostrat.com’ called corp-altostrat-com that points to 192.168.20.88.

Configure your on-premises firewall to accept traffic from 10.204.0.0/24.

Modify the /etc/resolv conf file on your Compute Engine instances to point to 192.168.20 88

Create a private zone in Cloud DNS for ‘corp altostrat.com’ called corp-altostrat-com.

Configure DNS Server Policies and create a policy with Alternate DNS servers to 192.168.20.88.

Configure your on-premises firewall to accept traffic from 35.199.192.0/19.

Set a custom route advertisement on the Cloud Router for 35.199.192.0/19.

Expert Solution

Questions # 43:

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.

Expert Solution

Questions # 44:

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.

Expert Solution

Questions # 45:

You need to centralize the Identity and Access Management permissions and email distribution for the WebServices Team as efficiently as possible.

What should you do?

Options:

Create a Google Group for the WebServices Team.

Create a G Suite Domain for the WebServices Team.

Create a new Cloud Identity Domain for the WebServices Team.

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

Expert Solution

Questions # 46:

You suspect that one of the virtual machines (VMs) in your default Virtual Private Cloud (VPC) is under a denial-of-service attack. You need to analyze the incoming traffic for the VM to understand where the traffic is coming from. What should you do?

Options:

Enable Data Access audit logs of the VPC. Analyze the logs and get the source IP addresses from the subnetworks.get field.

Enable VPC Flow Logs for the subnet. Analyze the logs and get the source IP addresses from the connection field.

Enable VPC Flow Logs for the VPC. Analyze the logs and get the source IP addresses from the src_location field.

Enable Data Access audit logs of the subnet. Analyze the logs and get the source IP addresses from the networks.get field.

Expert Solution

Questions # 47:

Question:

Your organization has a hub and spoke architecture with VPC Network Peering, and hybrid connectivity is centralized at the hub. The Cloud Router in the hub VPC is advertising subnet routes, but the on-premises router does not appear to be receiving any subnet routes from the VPC spokes. You need to resolve this issue. What should you do?

Options:

Create custom learned routes at the Cloud Router in the hub to advertise the subnets of the VPC spokes.

Create custom routes at the Cloud Router in the spokes to advertise the subnets of the VPC spokes.

Create a BGP route policy at the Cloud Router, and ensure the subnets of the VPC spokes are being announced towards the on-premises environment.

Create custom routes at the Cloud Router in the hub to advertise the subnets of the VPC spokes.

Expert Solution

Questions # 48:

Question:

You need to enable Private Google Access for 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 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?

Options:

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.

Change the custom route that points the default route (0/0) to the default internet gateway as the next hop.

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.

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.

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.

Expert Solution

Questions # 49:

Question:

You are designing the architecture for your organization so that clients can connect to certain Google APIs. Your plan must include a way to connect to Cloud Storage and BigQuery. You also need to ensure the traffic does not traverse the internet. You want your solution to be cloud-first and require the least amount of configuration steps. What should you do?

Options:

Configure Private Google Access on the VPC resource. Create a default route to the internet.

Configure Private Google Access on the subnet resource. Create a default route to the internet.

Configure Cloud NAT and remove the default route to the internet.

Configure a global Secure Web Proxy and remove the default route to the internet.

Expert Solution

Questions # 50:

You have the networking configuration shown in the diagram. A pair of redundant Dedicated Interconnect connections (int-Igal and int-Iga2) terminate on the same Cloud Router. The Interconnect connections terminate on two separate on-premises routers. You are advertising the same prefixes from the Border Gateway Protocol (BGP) sessions associated with the Dedicated Interconnect connections. You need to configure one connection as Active for both ingress and egress traffic. If the active Interconnect connection fails, you want the passive Interconnect connection to automatically begin routing all traffic Which two actions should you take to meet this requirement? (Choose Two)

Question # 50

Options:

Configure the advertised route priority > 10,200 on the active Interconnect connection.

Advertise a lower MED on the passive Interconnect connection from the on-premises router

Configure the advertised route priority as 200 for the BGP session associated with the active Interconnect connection.

Configure the advertised route priority as 200 for the BGP session associated with the passive Interconnect connection.

Advertise a lower MED on the active Interconnect connection from the on-premises router

Expert Solution

Answer

C, E

Explanation

This answer meets the requirement of configuring one connection as Active for both ingress and egress traffic, and enabling automatic failover to the passive connection in case of failure. The reason is:

The advertised route priority is a value that Cloud Router uses to set the route priority when advertising routes to your on-premises router. The lower the value, the higher the priority1. By setting the advertised route priority as 200 for the active connection, you ensure that it has a higher priority than the passive connection, which has the default value of 1001. This way, your on-premises router will prefer the routes from the active connection over the passive one for ingress traffic.

The MED (Multi-Exit Discriminator) is a value that your on-premises router uses to indicate its preference for receiving traffic from Cloud Router. The lower the value, the higher the preference2. By advertising a lower MED on the active connection from your on-premises router, you ensure that Cloud Router will prefer sending traffic to the active connection over the passive one for egress traffic.

If the active connection fails, Cloud Router will stop receiving routes from it and will start using the routes from the passive connection for egress traffic. Similarly, your on-premises router will stop receiving routes with priority 200 from the active connection and will start using the routes with priority 100 from the passive connection for ingress traffic. This achieves automatic failover without any manual intervention.

Option A is incorrect because setting the advertised route priority > 10,200 on the active connection would deprioritize it globally in your VPC network, which is not what you want1. Option B is incorrect because advertising a lower MED on the passive connection would make Cloud Router prefer sending traffic to it over the active one, which is not what you want2. Option D is incorrect because setting the advertised route priority as 200 for both connections would make them equally preferred by your on-premises router, which is not what you want1.

[:, Update the base route priority | Cloud Router | Google Cloud, Configuring BGP sessions | Cloud Router | Google Cloud, , , ]

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