Helping Hand Questions for 312-38

 Para virtualization is a virtualization technique where the guest operating system is aware of the virtual environment and can communicate directly with the host machine’s hypervisor to request resources. This direct communication allows for a more efficient system, as it does not require the same level of emulation and overhead as full virtualization. In para virtualization, the guest OS is typically modified to interact with a thin layer of software called a hypervisor, which coordinates access to the physical hardware resources. This setup is designed to reduce the performance overhead that typically occurs with full virtualization, where the guest OS must go through a more complex abstraction layer to access resources.

References: The information provided is based on standard practices of para virtualization in network security and aligns with the Certified Network Defender (CND) curriculum, which includes understanding various virtualization techniques as part of network infrastructure management12.

Incident management enables an organization to analyze, identify, and rectify hazards and prevent future recurrence in business continuity management. It involves a systematic process that manages the lifecycle of all incidents. Incident management ensures that normal service operation is restored as quickly as possible and the business impact is minimized. It is an integral part of an organization’s business continuity and disaster recovery plan, focusing on the immediate response to incidents, establishing protocols for communication, and promoting swift recovery actions.

References: The explanation is aligned with the objectives and documents of the EC-Council’s Certified Network Defender (CND) program, which emphasizes the importance of incident management in maintaining business continuity. The CND program covers various aspects of network security, including business continuity and disaster recovery, where incident management plays a crucial role in analyzing and responding to threats to ensure the organization’s resilience123.

In the PaaS (Platform as a Service) cloud service model, the cloud provider manages the infrastructure, including network, servers, operating systems, and storage. The organization’s responsibility is primarily at the application level, which includes the data, interfaces, and the applications themselves. This means the organization must ensure the security and compliance of their data, manage the applications they develop or deploy, and handle the interfaces that connect their applications to other services or users. References: The Certified Network Defender (CND) course by EC-Council discusses the shared responsibility model in cloud services, emphasizing the division of responsibilities between the cloud provider and the consumer123.

 The correct Wireshark filter to detect a SYN/FIN DDoS attempt is tcp.flags==0X029. This filter is designed to capture packets where both the SYN and FIN flags are set, which is an unusual combination and indicative of a SYN/FIN attack. In a typical three-way TCP handshake, the SYN and FIN flags are not set in the same TCP segment. A SYN flag is used to initiate a connection, and a FIN flag is used to politely close a connection. Therefore, seeing both flags set in the same packet suggests a possible SYN/FIN DDoS attack.

References: The answer is based on the standard behavior of TCP flags in network communications and the detection of anomalous flag combinations that signify potential DDoS attacks. While specific references to the EC-Council’s Certified Network Defender (CND) course materials cannot be provided here, the explanation aligns with the general knowledge of network security practices and the use of Wireshark for network analysis.