Final answer:
The new system admin should have updated through a vulnerability feed, the security content automation protocol (SCAP), and the threat feed. The correct answer is D.
Step-by-step explanation:
The new system admin should have done the following:
Updated via vulnerability feed: This involves subscribing to a feed that provides the latest information on vulnerabilities and updates.
Updated via the security content automation protocol (SCAP): This protocol allows for automated updates of security-related content, including vulnerability signatures.
Updated via the threat feed: A threat feed provides real-time information on emerging threats and vulnerabilities, which the admin can use to update the vulnerability scanner.
The system administrator should have updated the vulnerability scanner using a vulnerability feed, the security content automation protocol (SCAP), and a threat feed for efficient and accurate updates of vulnerability signatures.
The student's question pertains to what actions a new system administrator should take when working with vulnerability scanners, specifically regarding the updating of vulnerability signatures with the aid of Common Vulnerabilities and Exposures (CVE) and the Common Vulnerability Scoring System (CVSS). The best options that the new system admin should have considered are:
Updated via vulnerability feed - This streamlines the process by automatically pushing updates to the vulnerability scanner with the latest signatures.
Updated via the security content automation protocol (SCAP) - SCAP can automate the process of managing security information, including vulnerabilities, ensuring the system remains up-to-date with less manual intervention.
Updated via the threat feed - A threat feed provides information about current or potential threats and can supplement the CVE information with additional context.
These actions would help maintain the system's security posture without requiring extensive manual input, which is error-prone and inefficient.