A system availability risk scenario is a situation where a system or a service is not accessible or functional due to a failure or an attack. The likelihood of such a scenario depends on the vulnerabilities or weaknesses that exist in the system or the service, and the threats or attackers that could exploit them. Therefore, by scanning the critical systems or services for vulnerabilitiesand analyzing the results, one can estimate the probability or frequency of a system availability risk scenario1.
A vulnerability scan is a process of identifying and evaluating the potential security risks in a system or a service. A vulnerability scan report provides a list of vulnerabilities that have been detected, categorized by their severity levels, and accompanied by remediation recommendations. By reviewing the report, one can understand the current security posture of the system or the service, and the actions that need to be taken to address the vulnerabilities2.
The other options are not the best ways to determine the likelihood of a system availability risk scenario, but rather some of the factors or outcomes of it. Availability of fault tolerant software is a factor that can reduce the likelihood of a system availability risk scenario, as it means that the software can continue to operate without interruption even if some of its components fail. Fault tolerant software can achieve this by using backup or redundant components, or by implementing error detection and correction mechanisms3. Strategic plan for business growth is an outcome of a system availability risk scenario, as it can affect the organization’s objectives and strategies. A system availability risk scenario can have negative impacts on the organization’s performance, reputation, customer satisfaction, and competitive advantage, and thus hamper its growth potential4. Redundancy of technical infrastructure is a factor that can reduce the likelihood of a system availability risk scenario, as it means that the infrastructure has duplicate or alternativedevices or paths that can take over in case of a failure or an attack. Redundancy of technical infrastructure can ensure network availability and prevent data loss5. References =
Describe the risk scenarios | NZ Digital government
How to Read a Vulnerability Scan Report | Evolve Security
Learn about Fault Tolerant Servers | What is Fault Tolerance?-Stratus
The Importance of Redundancies in Your Infrastructure - INAP
What is Redundancy? - Your IT Department
[CRISC Review Manual, 7th Edition]
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