Sure Pass Exam Professional-Cloud-Network-Engineer PDF

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Question 28

You created a new VPC network named Dev with a single subnet. You added a firewall rule for the network Dev to allow HTTP traffic only and enabled logging. When you try to log in to an instance in the subnet via Remote Desktop Protocol, the login fails. You look for the Firewall rules logs in Stackdriver Logging, but you do not see any entries for blocked traffic. You want to see the logs for blocked traffic.

What should you do?

Options:

Check the VPC flow logs for the instance.

Try connecting to the instance via SSH, and check the logs.

Create a new firewall rule to allow traffic from port 22, and enable logs.

Create a new firewall rule with priority 65500 to deny all traffic, and enable logs.

Question 29

Question:

You reviewed the user behavior for your main application, which uses an external global Application Load Balancer, and found that the backend servers were overloaded due to erratic spikes in client requests. You need to limit concurrent sessions and return an HTTP 429 "Too Many Requests" response back to the client while following Google-recommended practices. What should you do?

Options:

Create a Cloud Armor security policy, and apply the predefined Open Worldwide Application Security Project (OWASP) rules to automatically implement the rate limit per client IP address.

Configure the load balancer to accept only the defined amount of requests per client IP address, increase the backend servers to support more traffic, and redirect traffic to a different backend to burst traffic.

Configure a VM with Linux, implement the rate limit through iptables, and use a firewall rule to send an HTTP 429 response to the client application.

Create a Cloud Armor security policy, and associate the policy with the load balancer. Configure the security policy's settings as follows: action: throttle, conform-action: allow, exceed-action: deny-429.

Question 30

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 on-premises 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?

Options:

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

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

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.

Question 31

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?