Changed 312-38 Exam Questions

To detect TCP and UDP ping sweeps on a network, the appropriate filter would be one that checks for packets directed at port 7, which is commonly used for the ‘echo’ service. This service is associated with ping functionality for both TCP and UDP protocols. Therefore, the correct filter to use would be Tcp.dstport==7 and udp.dstport==7, which checks for incoming packets where the destination port is 7 for both TCP and UDP traffic. This allows Mark to identify ping sweep attempts, as these would typically send packets to this port to elicit a response from the network.

References: The Certified Network Defender (CND) course material outlines the importance of understanding and utilizing network filters to detect various types of network scans and sweeps, including TCP and UDP ping sweeps1. This is further supported by industry practices and discussions on network security monitoring and defense1.

The Payment Card Industry Data Security Standard (PCI-DSS) is the information security standard that defines security policies, technologies, and ongoing processes for organizations that handle cardholder information for various types of cards, including debit, credit, prepaid, e-purse, ATM, and POS cards. PCI-DSS was developed by major credit card companies to create a secure environment for processing, storing, and transmitting cardholder data. Compliance with PCI-DSS involves adhering to a set of requirements that ensure the secure handling, storage, and transmission of cardholder information.

References: The significance and requirements of PCI-DSS are detailed in resources such as the Cloud Security Alliance’s guide on “Understanding PCI DSS: A Guide to the Payment Card Industry Data Security Standard” and the official PCI Security Standards Council documentation12.

The correct answer is Recovery Time Objective (RTO). RTO is a critical metric in disaster recovery (DR) and business continuity (BC) planning. It defines the target time within which a business process must be restored after a disaster to avoid unacceptable consequences associated with a break in business continuity. It is essentially the maximum acceptable length of time that a computer, system, network, or application can be down after a failure or disaster occurs. An RTO is set by business continuity planners to ensure that the DR and BC solutions are designed to meet the specific time constraints of the organization.

References: The explanation provided is based on standard definitions and practices within the field of disaster recovery and business continuity planning. The RTO is a well-established concept in DR and BC solutions, as outlined in various authoritative resources on the subject1234. For the most accurate and detailed reference, it is recommended to consult the official documents and study guides from the Certified Network Defender (CND) course by the EC-Council.

Daniel is adopting a Reactive network security approach. This approach involves monitoring network traffic to detect any abnormalities or intrusions as they occur. The goal of reactive security is to identify and respond to threats in real-time. It is a part of the broader defense strategy that includes Protect, Detect, Respond, and Predict, where ‘Detect’ aligns with the reactive approach. By using network monitoring tools, Daniel is able to observe the network for any signs of compromise or unusual activity and then take appropriate action to mitigate the threat.

References: The Certified Network Defender (CND) program by EC-Council emphasizes the importance of a continual/adaptive security strategy, which includes the ability to detect ongoing threats as a critical component of network defense12. This strategy is further detailed in the CND course outline, which covers key topics such as network traffic monitoring and analysis, indicating the reactive nature of such activities1.