Explanation
A database administrator (DBA) should be prevented from having end user responsibilities to avoid a conflict of interest and a violation of the principle of segregation of duties. End user responsibilities may include initiating transactions, authorizing transactions, recording transactions or reconciling transactions. A DBA who has end user responsibilities may compromise the integrity, confidentiality and availability of the data and the database systems. Accessing sensitive information, having access to production files and using an emergency user ID are not end user responsibilities, but rather potential risks or controls associated with the DBA role. References:
1: Database Administrator (DBA) Definition
2: Segregation of Duties | ISACA
3: [End User Definition]

The statement that BEST demonstrates alignment with data classification standards related to the protection of information assets is D. All information assets will be assigned a clearly defined level to facilitate proper employee handling. Data classification involves categorizing information assets based on their sensitivity, importance, and usage. Assigning clearly defined levels (such as public, internal, confidential, etc.) to information assets ensures that appropriate security controls are applied based on their classification. By doing so, organizations can manage access, encryption, and other protective measures effectively12.
References:
* IFRC. "Information Security: Acceptable Use
Policy." 1(https://www.ifrc.org/sites/default/files/2021-11/IFRC-Information-Security-Acceptable-Use-Po
* UNSW Sydney. "Data Classification
Standard." 2(https://www.unsw.edu.au/content/dam/pdfs/governance/policy/2022-01-policies/datastandard
* Digital Guardian. "What is a Data Classification
Policy?" 3(https://www.digitalguardian.com/blog/what-data-classification-policy)
* Microsoft Service Trust Portal. "Data classification & sensitivity label taxonomy." 4(https://learn.microsoft.com/en-us/compliance/assurance/assurance-data-classification-and-la
* Clark University ITS Policies. "Data Classification - Data Security
Policies." 5(https://www2.clarku.edu/offices/its/policies/data_classification.cfm)

Batch control reconciliations is a compensatory control for mitigating risk of inadequate segregation of duties.

Section: Information System Operations, Maintenance and Support