Isaca CISA Dumps Questions Answers

A Disaster Recovery as a Service (DRaaS) provider is responsible for system recovery procedures, including restoring systems and services in a disaster scenario. This is the core functionality of DRaaS.

Stakeholder Communications (Option B):This is typically managed internally by the organization to ensure alignment with its crisis management plan.

Validation of Recovered Data (Option C):The organization must verify data integrity to meet business requirements.

Maintaining Currency of Data (Option D):While DRaaS may handle data backups, the organization retains responsibility for ensuring the relevance of the data being backed up.

Capacity management must consider business changes to ensure IT resources can meet future demand. If changes to critical systems are omitted from planning, capacity forecasts will be inaccurate, leading to risks of downtime, bottlenecks, and unplanned outages. A six-month review (A) might be acceptable depending on system dynamics. Lack of administrator input (C) and reliance on service management (D) reduce planning quality but are less critical than missing major business drivers. COBIT DSS01 (Managed Operations) and APO02 (Managed Strategy) emphasize alignment between IT capacity and business requirements.

References (ISACA): COBIT® 2019, DSS01 Managed Operations; APO02 Managed Strategy.

The recovery time objective (RTO) is the most important consideration when making a decision to invest in a hot site due to service criticality. The RTO is the maximum acceptable time that an IT service or process can be unavailable or disrupted before it causes significant damage to the business operations and objectives. A hot site is a fully equipped and operational backup facility that can be activated immediately in the event of a disaster or disruption. A hot site can help an organization achieve a very low RTO, as it can resume the service with minimal or no downtime. The maximum tolerable downtime (MTD) is the maximum acceptable time that an IT service or process can be unavailable or disrupted before it causes intolerable damage to the business operations and objectives. The MTD is usually longer than the RTO, as it represents the worst-case scenario. The recovery point objective (RPO) is the maximum acceptable amount of data loss that an IT service or process can tolerate in the event of a disaster or disruption. The RPO is measured in terms of time, such as hours or minutes, and indicates how frequently the data should be backed up or replicated. The mean time to repair (MTTR) is the average time that it takes to restore an IT service or process after a failure or disruption. The MTTR is a measure of the efficiency and effectiveness of the recovery process, but it does not reflect the service criticality or the business impact. References: IS Audit and Assurance Tools and Techniques, CISA Certification | Certified Information Systems Auditor | ISACA