After several weeks of consistent workload patterns, a cloud virtual machine suddenly shows CPU and network spikes between 02:00 and 03:00 outside its documented operating window. Which administrator action would best verify that the spikes truly represent suspicious activity?
Compare current utilization metrics against the established performance baseline
Reduce the number of administrative accounts to senior staff only
Schedule an automated daily reboot of the virtual machine
Migrate the virtual machine to a different cloud region
Comparing the latest utilization data with the system's established performance baseline reveals whether the overnight spikes fall outside normal limits. This evidence-based check confirms an anomaly before taking mitigations such as limiting accounts, migrating regions, or restarting services, which do not in themselves prove malicious or unauthorized usage.
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What kinds of metrics should be checked when comparing current performance with past data?
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Why is cross-checking data more effective than immediately taking protective measures?
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What tools are commonly used to monitor and analyze historical performance data?