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Answer: Enable VPC Flow Logs and send the output to BigQuery for analysis.
To identify VM instances and traffic types causing a network usage spike while minimizing cost and management overhead, VPC Flow Logs (Option A) are the most suitable. VPC Flow Logs capture metadata about network traffic, including source/destination IPs, ports, and bytes transferred. Sending logs to BigQuery enables efficient querying to pinpoint high-traffic VMs and traffic patterns. Firewall Rules Logging (Option B) logs connection events but does not track traffic volume. Packet Mirroring (Option C) and third-party appliances (Option D) introduce significant cost and management complexity, which violates the problem's constraints. Thus, Option A is the optimal choice.
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To identify the VM instances and traffic types causing a daily spike in network usage in your Google Cloud project while minimizing cost and management overhead, what steps should you take?
A
Enable VPC Flow Logs and send the output to BigQuery for analysis.
B
Enable Firewall Rules Logging for all allowed traffic and send the output to BigQuery for analysis.
C
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.
D
Deploy a third-party network appliance and configure it as the default gateway. Use the third-party network appliance to identify users with high network traffic.