Isaca Updated CISM Exam Questions and Answers by wyatt

The greatest concern resulting from the lack of severity criteria in incident classification is that escalation procedures will be ineffective because they rely on severity criteria to determine when and how to escalate an incident to higher levels of authority or responsibility, and what actions or resources are required for resolving an incident. Statistical reports will be incorrect is not a great concern because they do not affect the incident response process directly, but rather provide information or analysis for improvement or evaluation purposes. The service desk will be staffed incorrectly is not a great concern because it does not affect the incident response process directly, but rather affects the availability or efficiency of one of its components. Timely detection of attacks will be impossible is not a great concern because it does not depend on severity criteria, but rather on monitoring and alerting mechanisms. References: https://www.isaca.org/resources/isaca-journal/issues/2017/volume-5/incident-response-lessons-learned https://www.isaca.org/resources/isaca-journal/issues/2018/volume-3/incident-response-lessons-learned

The expected duration of outage is the primary factor that should trigger the BCP because it indicates how long the organization can tolerate the disruption of its critical business processes and functions before it causes unacceptable consequences. The expected duration of outage is determined by the recovery time objectives (RTOs) that are defined for each critical business process and function based on the business impact analysis (BIA). The BCP should be triggered when the expected duration of outage exceeds or is likely to exceed the RTOs.

The disk hash value is a unique identifier that is calculated from the binary data of the disk. It is used to verify that the disk image is an exact copy of the original disk and that no changes have occurred during the acquisition or analysis process. The disk hash value is stored externally, such as on a CD-ROM or a USB drive, to prevent tampering or corruption. The disk hash value can also be used as evidence in court to prove the authenticity and reliability of the digital evidence123 References = 1: CISM Review Manual 15th Edition, ISACA, 2017, page 2532: Guide to Computer Forensics and Investigations Fourth Edition, page 4-103: Forensic disk acquisition over the network, Andrea Fortuna, 2018.

The main purpose of creating and storing an external disk hash value when performing forensic data acquisition from a hard disk is to validate the integrity of the data during the analysis. This is done by comparing the original hash value of the disk to the hash value created during the acquisition process, which can be used to ensure that the data has not been tampered with or corrupted in any way. Additionally, by creating a hash value of the disk, it can be used to quickly verify the integrity of any data that is accessed from the disk in the future.