1. Right Answer: A
Explanation: An intrusion detection system (IDS) is a device or software application that monitors network and/or system activities for malicious activities or policy violations and produces reports to a Management Station. Some systems may attempt to stop an intrusion attempt but this is neither required nor expected of a monitoring system. Intrusion detection and prevention systems (IDPS) are primarily focused on identifying possible incidents, logging information about them, and reporting attempts. In addition, organizations use IDPS for other purposes, such as identifying problems with security policies, documenting existing threats, and deterring individuals from violating security policies.As IDS detects and gives warning when the violation of security policies of the enterprise occurs, it is a detective control.Incorrect Answers:B: These controls make effort to reduce the impact of a threat from problems discovered by detective controls. As IDS only detects but not reduce the impact, hence it is not a corrective control.C: As IDS only detects the problem when it occurs and not prior of its occurrence, it is not preventive control.D: These controls make efforts to overcome the impact of the incident on the business, hence IDS is not a recovery control.

2. Right Answer: A,C,D
Explanation: Audit and accountability family of controls helps an organization implement an effective audit program. It provides details on how to determine what to audit. It provides details on how to protect the audit logs. It also includes information on using audit logs for non-repudiation.Incorrect Answers:B: Access Control is the family of controls that helps an organization implement effective access control. They ensure that users have the rights and permissions they need to perform their jobs, and no more. It includes principles such as least privilege and separation of duties.Audit and accountability family of controls do not help in implementing effective access control.

3. Right Answer: B
Explanation: The risk response process is triggered when a risk exceeds the enterprise's risk tolerance level. The acceptable variation relative to the achievement of an objective is termed as risk tolerance. In other words, risk tolerance is the acceptable deviation from the level set by the risk appetite and business objectives.Risk tolerance is defined at the enterprise level by the board and clearly communicated to all stakeholders. A process should be in place to review and approve any exceptions to such standards.Incorrect Answers:A, C: Risk appetite level is not relevant in triggering of risk response process. Risk appetite is the amount of risk a company or other entity is willing to accept in pursuit of its mission. This is the responsibility of the board to decide risk appetite of an enterprise. When considering the risk appetite levels for the enterprise, the following two major factors should be taken into account: The enterprise's objective capacity to absorb loss, e.g., financial loss, reputation damage, etc. The culture towards risk taking-cautious or aggressive. In other words, the amount of loss the enterprise wants to accept in pursue of its objective fulfillment.D: Risk response process is triggered when the risk level increases the risk tolerance level of the enterprise, and not when it just equates the risk tolerance level.

4. Right Answer: A
Explanation: Exposure Factor represents the impact of the risk over the asset, or percentage of asset lost. For example, if the Asset Value is reduced to two third, the exposure factor value is 0.66.Therefore, when the asset is completely lost, the Exposure Factor is 1.0.Incorrect Answers:B, C, D: These are not the values of exposure factor for zero assets.

5. Right Answer: D
Explanation: This is an example of exploiting a positive risk - a by-product of a project is an excellent example of exploiting a risk. Exploit response is one of the strategies to negate risks or threats that appear in a project. This strategy may be selected for risks with positive impacts where the organization wishes to ensure that the opportunity is realized. Exploiting a risk event provides opportunities for positive impact on a project. Assigning more talented resources to the project to reduce the time to completion is an example of exploit response.Incorrect Answers:A: Enhancing is a positive risk response that describes actions taken to increase the odds of a risk event to happen.B: This is an example of a positive risk, but positive is not a risk response.C: Opportunistic is not a valid risk response.