正解:B
In a Security Operations Center (SOC) environment, a vulnerability management metric is a quantifiable measure used to assess the effectiveness of the vulnerability management program. A full assets scan is a metric that can be used to determine the coverage and frequency of vulnerability scans across all assets. This helps in identifying unscanned assets and ensuring that all parts of the network are regularly checked for vulnerabilities1.
Reference:
SOC Metrics: Security Metrics & KPIs for Measuring SOC Success
Vulnerability Management Metrics: 5 Metrics to Start Measuring in Your Vulnerability Management Program Top 10 Vulnerability Management Metrics & KPIs To Measure Success