Question

what is the best way for cybersecurity professionals to identify malicious activity?
understand what normal activity looks like within a particular it environment
keep track of which types of attacks have recently occurred in it environments in other organizations
regularly ask users about their activity on the organizations network
know which types of attacks are the most common

Explanation:

Identifying malicious activity relies on baseline knowledge of an organization’s unique IT environment. Normal activity varies by system, so deviations from this baseline (e.g., unusual login times, data transfers) signal potential threats. Other options (tracking external attacks, user queries, common attack types) are supplementary but not the primary method for direct detection.

Answer:

Understand what normal activity looks like within a particular IT environment