IT performance measures are indicators of how well an organization is achieving its IT goals and objectives.
Benchmarking surveys are useful tools for comparing an organization's IT performance measures with those of other organizations in the same industry or sector. Benchmarking surveys can provide insights into best practices, gaps, trends, and opportunities for improvement. IT governance frameworks, utilization reports, and balanced scorecards are not as helpful for comparing ITperformance measures across organizations, as they may vary in scope, methodology, and terminology. References: IT Resources | Knowledge and Insights | ISACA, CISA Review Manual (Digital Version)

The first step in the incident response process for a suspected breach is to research the validity of the alerted breach. An incident response process is a set of procedures that defines how to handle security incidents in a timely and effective manner. The first step in this process is to research the validity of the alerted breach, which means to verify whether the alert is genuine or false positive, to determine the scope and impact of the incident, and to gather relevant information for further analysis and action. Informing potentially affected customers of the security breach, notifying business management of the security breach, and engaging a third party to independently evaluate the alerted breach are also steps in the incident response process, but they are not the first step. References:
CISA Review Manual, 27th Edition, page 4251
CISA Review Questions, Answers and Explanations Database - 12 Month Subscription

The most effective way to ensure the integrity of data transmitted over a network is to use a message digest. A message digest is a cryptographic function that generates a unique and fixed-length value (also known as a hash or checksum) from any input data. The message digest can be used to verify that the data has not been altered or corrupted during transmission by comparing it with the message digest generated at the destination.
Message encryption is a method of protecting the confidentiality of data transmitted over a network by transforming it into an unreadable format using a secret key. Message encryption does not ensure the integrity of data, as it does not prevent or detect unauthorized modifications. Certificate authority (CA) is an entity that issues and manages digital certificates that bind public keys to identities. CA does not ensure the integrity of data, as it does not prevent or detect unauthorized modifications. Steganography is a technique of hiding data within other data, such as images or audio files. Steganography does not ensure the integrity of data, as it does not prevent or detect unauthorized modifications. References:
CISA Review Manual, 27th Edition, pages 383-3841
CISA Review Questions, Answers and Explanations Database, Question ID: 258

The primary reason an IS auditor should discuss observations with management before delivering a final report is A. Validate the audit observations. This is because discussing the observations with management can help the auditor to ensure that the findings are accurate, complete, and supported by sufficient evidence1. It can also help the auditor to obtain management's perspective and feedback on the issues and risks identified, and to avoid any misunderstandings or surprises when the final report is issued2.