Explanation/Reference:
Explanation:
One way to determine the return on security investment is to illustrate how information security supports the achievement of business objectives. Security metrics measure improvement and effectiveness within the security practice but do not tie to business objectives. Similarly, listing deliverables and creating process improvement models does not necessarily tie into business objectives.

Explanation
A statistical anomaly-based intrusion detection system (stat IDS) collects data from normal traffic and establishes a baseline. It then periodically samples the network activity based on statistical methods and compares samples to the baseline. When the activity is outside the baseline parameter (clipping level), the IDS notifies the administrator. The baseline variables can include a host's memory or central processing unit (CPU) usage, network packet types and packet quantities. If actions of the users or the systems on the network vary widely with periods of low activity and periods of frantic packet exchange, a stat IDS may not be suitable, as the dramatic swing from one level to another almost certainly will generate false alarms. This weakness will have the largest impact on the operation of the IT systems. Due to the nature of stat IDS operations (i.e., they must constantly attempt to match patterns of activity to the baseline parameters), a stat IDS requires much more overhead and processing than signature-based versions. Due to the nature of a stat IDS - based on statistics and comparing data with baseline parameters - this type of IDS may not detect minor changes to system variables and may generate many false positives. Choice D is incorrect; since the stat IDS can monitor multiple system variables, it can detect new types of variables by tracing for abnormal activity of any kind.

Security policy provisions are the statements or rules that define the information security objectives, principles, roles and responsibilities, and requirements for the organization. Security policy provisions must be established to maintain an effective information security governance framework, as they provide the foundation and direction for the information security activities and processes within the organization. Security policy provisions also help to align the information security governance framework with the business strategy and objectives, and ensure compliance with relevant laws and regulations. The other options, such as security controls automation, defined security metrics, or change management processes, are important components of an information security governance framework, but they are not essential to establish it. Reference:
https://www.iso.org/standard/74046.html
https://www.nist.gov/cyberframework
https://www.iso.org/standard/27001

An e-commerce order fulfillment web server should be placed within a DMZ to protect it and the internal network from external attack. Placing it on the internal network would expose the internal network to potential attack from the Internet. Since a database server should reside on the internal network, the same exposure would exist. Domain controllers would not normally share the same physical device as a web server.