312-38 Exam Dumps : Certified Network Defender (CND)

The presence of packets with FIN, PUSH, and URG flags activated in network traffic, as observed through Wireshark, is indicative of a XMAS scan. This type of scan is used by attackers to identify open ports and services available on a networked computer. The peculiar combination of these TCP flags is not used in normal, everyday communications and is easily picked up by intrusion detection systems as anomalous. The XMAS scan derives its name from the fact that the packet lights up like a Christmas tree with several flags set, which is an unusual and conspicuous event in network traffic.

References: The characteristics of a XMAS scan and the use of these specific TCP flags are documented in network security literature and align with the Certified Network Defender (CND) course materials, which cover network scanning techniques and their identification123.

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.

John should implement a Proactive security approach. This approach is part of the adaptive security strategy that is built on a 4-pronged approach — Protect, Detect, Respond, and Predict1. By being proactive, John can anticipate potential threats and vulnerabilities and take steps to mitigate them before they can be exploited. This is in contrast to reactive or retrospective approaches, which deal with threats after they have occurred. The proactive approach is aligned with the Certified Network Defender (CND) program’s emphasis on preparing network defenders to identify parts of an organization that need to be reviewed and tested for security vulnerabilities, and how to reduce, prevent, and mitigate risks in the network2345.

References:

• EC-Council’s Certified Network Defender (CND) course outline and key features2.
• Information on the CND certification and its focus on proactive defense strategies3.
• Description of the adaptive security strategy, including the proactive approach, from the CND program1.
• Details on the protect, detect, respond, and predict approach to network security covered in the CND program4.
• Additional insights into the CND training and its emphasis on proactive security measures5.