New Release 312-38 CND Questions

Cgroups, or control groups, are a feature of the Linux kernel that allows system administrators to allocate, limit, and monitor the resources used by sets of processes. Jeanne can use cgroups to manage and restrict access to CPU, memory, swap, block IO rates, and network resources for containers. This feature also enables the auditing of process groups, making it possible to track the resource usage and ensure that each container only uses its allocated share, preventing any single process from monopolizing system resources.

References: The functionality of cgroups is well-documented in the Linux kernel documentation and is a fundamental topic in system administration, which is relevant to the objectives of the EC-Council’s Certified Network Defender (CND) program. The use of cgroups for managing system resources is also a standard practice in Linux-based environments12.

Composite signature-based analysis is a technique used in intrusion detection systems to examine multiple attributes or behaviors over time to identify potential threats. This method can analyze packet headers to detect anomalies that may indicate a packet has been altered. It looks at a series of packets or fragments to determine if they are part of a legitimate session or if they have been manipulated as part of an attack, such as overlapping fragments which cannot be reassembled properly. This approach is more comprehensive than atomic signature-based analysis, which examines single events or packets in isolation, and provides a more contextual understanding compared to context-based or content-based analyses.

References: The concept of composite signature-based analysis and its application in examining packet headers for alterations is supported by industry-standard practices in network security and intrusion detection systems123.

Iris scanning is an authentication technique that involves mathematical pattern-recognition of the colored part of the eye, known as the iris. This method uses the unique patterns in the iris to identify and verify an individual’s identity. The iris is a muscle within the eye that controls the size of the pupil and is visible from the exterior. It has a complex structure and contains many microscopic features that are unique to each individual, making it a reliable biometric for authentication purposes.

References: The explanation provided is based on standard biometric security protocols that recognize the iris as one of the most accurate and secure forms of authentication due to its stability and uniqueness12. Iris recognition technology is widely discussed in network security literature and aligns with the objectives of the Certified Network Defender (CND) course, which covers various methods of user authentication and identity verification1.

COBIT (Control Objectives for Information and Related Technologies) is a framework designed to help organizations develop, implement, monitor, and improve IT governance and management practices. It is recognized for its comprehensive approach to aligning IT goals with business objectives, ensuring that IT investments support the overall strategic direction of the company. COBIT provides a set of controls over IT and consolidates them into a framework that helps organizations ensure that their IT infrastructure is secure, reliable, and efficient, while also being aligned with their business goals12.

References:

• ISACA’s “Connecting Business and IT Goals Through COBIT 5” article provides insights into how COBIT 5 connects business goals with IT goals using non-technical, business language1.
• The Interface Technical Training blog post on “Aligning IT goals using the COBIT5 Goals Cascade” explains the process of translating stakeholder needs into enterprise goals, IT-related goals, and enabler goals, which is key to supporting alignment between an enterprise’s needs and IT solutions and services2.