* Several network user accounts were recently created without the required management approvals. This indicates that there is a risk of unauthorized access, use, disclosure, modification, or destruction of the network resources or data, which may affect the confidentiality, integrity, and availability of the network.
* The best recommendation to address this situation is to investigate the root cause of noncompliance.
This means that the risk practitioner should analyze the factors or reasons that led to the creation of the network user accounts without the required management approvals, such as human error, negligence, malice, system failure, process flaw, etc.
* Investigating the root cause of noncompliance helps to identify and correct the source of the problem, prevent or reduce the recurrence of the problem, and improve the compliance and security of the network user accounts.
* The other options are not the best recommendations to address this situation. They are either secondary or not effective for noncompliance.
The references for this answer are:
* Risk IT Framework, page 31
* Information Technology & Security, page 25
* Risk Scenarios Starter Pack, page 23

*A risk owner is the person or entity that has the authority and responsibility to manage a specific risk1. The risk owner is accountable for the implementation and effectiveness of the risk response strategy and the risk treatment plan2.
*Identifying the risk owner is the first step when a new risk scenario has been identified, because the risk owner is the key stakeholder who will be involved in the subsequent steps of the risk management process, such as risk analysis, risk evaluation, risk treatment, and risk monitoring2.
*Identifying the risk owner also helps to clarify the roles and responsibilities of different parties involved in the risk management process, such as the risk manager, the risk analyst, the risk committee, and the risk auditor3. This can improve the communication, coordination, and collaboration among the risk management team and ensure that the risk is managed effectively and efficiently.
*Estimating the residual risk (option A) is not the first step when a new risk scenario has been identified, because the residual risk is the risk that remains after the risk treatment plan has been implemented2.
Therefore, estimating the residual risk requires prior steps such as risk analysis, risk evaluation, and risk treatment.
*Establishing key risk indicators (KRIs) (option B) is not the first step when a new risk scenario has been identified, because KRIs are metrics or data points that provide early warning signals or information about the level or trend of a risk4. Therefore, establishing KRIs requires prior steps such as risk identification, risk analysis, and risk evaluation.
*Designing control improvements (option C) is not the first step when a new risk scenario has been identified, because control improvements are part of the risk treatment plan, which is the set of actions and resources needed to implement the chosen risk response strategy2. Therefore, designing control improvements requires prior steps such as risk analysis, risk evaluation, and risk response selection.
References =
*Risk Owner - Institute of Internal Auditors
*Risk Treatment Plan - ISACA
*Risk Management Roles and Responsibilities - 360factors
*Key Risk Indicators: A Practical Guide | SafetyCulture

The primary reason to update a risk register with risk assessment results is to communicate the level and priority of assessed risk to management, as this enables them to make informed decisions about risk response and allocation of resources. The risk register is a tool for documenting and reporting the current status of risks, their causes, impacts, likelihood, and responses. Updating the risk register with risk assessment results ensures that the information is accurate, relevant, and timely. The risk register also helps to monitor and track the progress and effectiveness of risk management activities. The other options are not the primary reasons to update the risk register, although they may be secondary benefits or outcomes of doing so. References = Risk and Information Systems Control Study Manual, Chapter 3: IT Risk Assessment, page 109.

Ensuring that database changes are correctly applied is the primary reason for monitoring activities performed in a production database environment, as it helps to maintain the integrity, availability, and performance of the database and the applications that depend on it. Database changes are any modifications made to the database structure, configuration, data, or code, such as adding or deleting tables, columns, indexes, or triggers, updating or inserting data, or altering stored procedures or functions. Database changes can have significant impacts on the database functionality and behavior, and may introduce errors, inconsistencies, or vulnerabilities if not applied correctly. Therefore, monitoring database changes is essential to verify that the changes are implemented as intended, comply with the design specifications and standards, and do not cause any adverse effects or conflicts with the existing database or application components.
The other options are not the primary reasons for monitoring activities performed in a production database environment. Enforcing that changes are authorized is an important aspect of database change management, but it is not the main purpose of database monitoring. Database change management is the process of planning, reviewing, approving, and implementing database changes in a controlled and consistent manner. Database change management helps to ensure that the changes are authorized by the appropriate stakeholders, aligned with the business requirements and objectives, and documented and communicated to the relevant parties.
Database monitoring can support database change management by providing information and feedback on the change implementation and performance, but it does not enforce the change authorization. Deterring illicit actions of database administrators is a possible benefit of database monitoring, but it is not the primary reason for it. Database administrators are the users who have the highest level of access and privilege to the database, and they are responsible for managing and maintaining the database operations and security. Database monitoring can help to deter illicit actions of database administrators by tracking and auditing their activities and actions on the database, and alerting or escalating any suspicious or malicious behavior. However, database monitoring is not the only or the most effective way to prevent or detect illicit actions of database administrators. Other measures, such as implementing the principle of least privilege, segregating duties, enforcing password policies, and encrypting data, are also necessary to protect the database from unauthorized or improper access or manipulation by database administrators or other users. Preventing system developers from accessing production data is a possible benefit of database monitoring, but it is not the primary reason for it. System developers are the users who design, develop, and test the applications that interact with the database. System developers should not have access to the production data, as it may contain sensitive or confidential information that could be compromised or misused by the developers. System developers should only use test or dummy data for their development and testing purposes. Database monitoring can help to prevent system developers from accessing production data by controlling and restricting their access and privilege to the database, and logging and reporting any unauthorized or inappropriate access attempts.
However, database monitoring is not the only or the most effective way to prevent system developers from accessing production data. Other measures, such as implementing access control policies, masking or anonymizing data, and isolating development and production environments, are also necessary to safeguard the production data from system developers or other users. References = Database Monitoring: Basics & Introduction | Splunk, IT Risk Resources | ISACA, Best Practices for Database Performance Monitoring