Data analytics is most useful when dealing with large data populations because it allows the IS auditor to efficiently analyze entire datasets rather than relying on sampling. This enhances audit coverage, accuracy, and the ability to detect anomalies or irregular patterns.

Evidence of a control's performance must be verifiable. A missing signature or date means there is no confirmation that the review was actually performed. This undermines the completeness and reliability of the control. Accuracy (A) and content (B) relate to quality but do not address the missing attestation. Industry standards (C) may be relevant, but the auditor's main concern is that the absence of sign-off creates doubt about whether the control occurred at all. ISACA audit guidance highlights that sufficient and appropriate evidence is required to support the conclusion that a control is operating as designed.

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.

https://www.sentinelone.com/cybersecurity-101/cybersecurity/what-is-a-man-in-the-middle-mitm- attack/