Cybersecurity Audit Cybersecurity-Audit-Certificate Passing Score

The MOST significant limitation of vulnerability scanning is the fact that modern scanners only detect known vulnerabilities. This is because vulnerability scanners rely on databases or repositories of known vulnerabilities, such as CVE (Common Vulnerabilities and Exposures), to compare and identify the weaknesses or flaws in systems or applications. Vulnerability scanners cannot detect unknown vulnerabilities, such as zero-day vulnerabilities, that have not been reported or disclosed yet, and may be exploited by attackers before they are patched or fixed. The other options are not the most significant limitation of vulnerability scanning, because they either involve detecting common (A), unknown (B), or zero-day (D) vulnerabilities, which are not the capabilities or limitations of modern scanners.

The GREATEST advantage of using a virtual private network (VPN) over dedicated circuits and dial-in servers is that it is more cost effective. This is because a VPN is a technology that creates a secure and encrypted connection between a client and a server over an existing public network, such as the Internet. A VPN reduces the cost of establishing and maintaining a secure communication channel, as it does not require any additional hardware, software, or infrastructure, unlike dedicated circuits and dial-in servers, which require dedicated lines, modems, routers, switches, etc. The other options are not the greatest advantage of using a VPN over dedicated circuits and dial-in servers, because they either involve security (A), reliability (B), or speed C aspects that may not be significantly different or better than dedicated circuits and dial-in servers.

Trend/variance-detection tools are tools that look for anomalies in user behavior. These tools use statistical methods to establish a baseline of normal user activity and then compare it with current or historical data to identify deviations or outliers. These tools can help to detect unauthorized access, fraud, insider threats, or other malicious activities.

 In key protection/management, access should be aligned with the principle of least privilege. This means that users should only have the minimum level of access required to perform their tasks and no more. This reduces the risk of unauthorized access, misuse, or compromise of sensitive data or systems.