Section: Volume A
Explanation:
Creating a scenario requires determination of the value of an asset or a business process at risk and the potential threats and vulnerabilities that could cause loss. The risk scenario should be assessed for relevance and realism, and then entered into the risk register if found to be relevant.
In practice following steps are involved in risk scenario development:
* First determine manageable set of scenarios, which include:
- Frequently occurring scenarios in the industry or product area.
- Scenarios representing threat sources that are increasing in count or severity level.
- Scenarios involving legal and regulatory requirements applicable to the business.
* After determining manageable risk scenarios, perform a validation against the business objectives of the entity.
* Based on this validation, refine the selected scenarios and then detail them to a level in line with the criticality of the entity.
* Lower down the number of scenarios to a manageable set. Manageable does not signify a fixed number, but should be in line with the overall importance and criticality of the unit.
* Risk factors kept in a register so that they can be reevaluated in the next iteration and included for detailed analysis if they have become relevant at that time.
* Risk factors kept in a register so that they can be reevaluated in the next iteration and included for detailed analysis if they have become relevant at that time.
* Include an unspecified event in the scenarios, that is, address an incident not covered by other scenarios.
Incorrect Answers:
A: Cause-and-effect analysis is a predictive or diagnostic analytical tool used to explore the root causes or factors that contribute to positive or negative effects or outcomes. It is used during the process of exposing risk factors.

Section: Volume 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.

Availability requirements specify the expected level of service and the consequences of non-compliance. They are essential for ensuring that the SaaS provider can meet the business continuity and disaster recovery needs of the customer. Codifying them in the contract creates a clear and enforceable agreement that protects both parties.
References
*ISACA CRISC Review Manual, 7th Edition, Domain 3: Risk Response, Section 3.2.3: Business Continuity and Disaster Recovery
*Guideline for Completing Disaster Recovery Plans for SaaS and PaaS Applications (Yale-MSS-3.1 GD.02)
*How to Build a SaaS Disaster Recovery Plan | Acsense

Section: Volume D