Exam Professional Cloud Network Engineer topic 1 question 95 discussion

If you need to validate traffic flow and configuration correctness without sending data plane traffic, Option A (Connectivity Tests) is the most appropriate tool.

A is correct answer. No Data Plane Traffic: Operates using a control-plane simulation, so it doesn't send actual packets over the network. This makes it safe for validation without impacting live applications.

Answer: A. Use Network Intelligence Center’s Connectivity Tests.

The answer is A. For GCP to generate the topology it needs data traffic, so you'll see nothing on the topology graph if you do not generate data traffic :)

A. since question mentions without sending any data plane traffic....this is only possible in network connectivity tests. network topolgy gives an overview of traffic packets which are live , which is not the requirement

A. since question mentions without sending any data plane traffic....this is only possible in network connectivity tests. network topolgy gives an overview of traffic packets which are live , which is not the requirement

https://cloud.google.com/blog/topics/developers-practitioners/what-network-intelligence-center Answer IS A

Using Network Topology provides the following benefits: You can view the topology of your deployments. No additional configurations or agents are required to use Network Topology. You can use Network Topology graphs to understand your Google Cloud infrastructure. You don't need to view multiple logs or use third-party tools. You can use Network Topology to help you analyze the performance of your network. You can drill down and view various metrics that can help you identify unexpected patterns. You can use filters to help you highlight and focus on specific resources, especially when you need to diagnose and troubleshoot issues. You can view cross-project metrics for network traffic sent across Shared VPC or VPC Network Peering boundaries within the same organization. You can view insights for entities with high egress metric values for further analysis and troubleshooting.

remember that Connectivity Tests uses two types of analysis: a configuration analysis, which detects issues in active configurations within your project, and dynamic verification, which sends probes on the data plane. https://cloud.google.com/network-intelligence-center/docs/connectivity-tests/support/troubleshooting

C is right. Connectivity Tests will generate traffic.

"without sending any data plane test traffic" Only solution that does this is C

The correct answer is A. Use Network Intelligence Center’s Connectivity Tests. This option allows you to confirm that your Google Cloud network configuration allows traffic to flow from your cloud resources to your on-premises network without sending any data plane test traffic. The other options are not correct because: B. Enabling Packet Mirroring on your application and sending test traffic would require you to send data plane test traffic, which is not what you want. C. Using Network Intelligence Center’s Network Topology visualizations would only show you a graphical representation of your network topology, but not analyze or diagnose potential failure points in your Google Cloud network configurations. D. Enabling VPC Flow Logs and sending test traffic would also require you to send data plane test traffic, which is not what you want.

A is correct. Key features Network Topology Visualize the topology of your Virtual Private Cloud (VPC) networks, hybrid connectivity to and from your on-premises networks, connectivity to Google-managed services, and the associated metrics. Connectivity Tests Diagnostics tool that lets you check connectivity between network endpoints like a source or destination of network traffic such as a VM, GKE cluster, load balancer forwarding rule, or an IP address on the internet. Performance Dashboard Visibility into the performance of the entire Google Cloud network and to the performance of your project's resources. Firewall Insights Provides data about how firewall rules are being used, exposes misconfigurations, and identifies rules that could be made more strict. Network Analyzer Automatically monitors your VPC network configurations and detects misconfigurations and suboptimal configurations. Identifies failures caused by the underlying network, provides root cause information, and suggests possible resolutions https://cloud.google.com/network-intelligence-center

C will be right. below explain. "For some connectivity scenarios, Connectivity Tests also performs live data plane analysis. This feature sends packets over the data plane to validate connectivity and provides baseline diagnostics of latency and packet loss. If the route is supported for the feature, each test that you run includes a live data plane analysis result."

C will be right. below explain

A is right.

Its C as A still sends data through the data plane: https://cloud.google.com/network-intelligence-center/docs/connectivity-tests/concepts/overview "For some connectivity scenarios, Connectivity Tests also performs live data plane analysis. This feature sends packets over the data plane to validate connectivity and provides baseline diagnostics of latency and packet loss. If the route is supported for the feature, each test that you run includes a live data plane analysis result."