Cisco Updated 200-201 Exam Questions and Answers by chase

The source IP address from an audit log that indicates a session which may have exploited a vulnerability is considered corroborative evidence. This type of evidence supports other evidence that suggests a security breach occurred. In the context of cybersecurity, corroborative evidence can help establish that an attack was carried out and can be used in conjunction with other data points to build a case during an investigation.

References := The Understanding Cisco Cybersecurity Operations Fundamentals (CBROPS) training material discusses the types of data needed to investigate security incidents, which includes understanding the role of different types of evidence in building a security incident case1.

The exhibit shows a high rate of SYN packets being sent from multiple sources towards a single destination IP. This is indicative of a SYN flood attack, where the attacker sends a succession of SYN requests to a target’s system in an attempt to consume enough server resources to make the system unresponsive to legitimate traffic. References := Cisco Cybersecurity Operations Fundamentals - Module 4: Network Intrusion Analysis

Delivery is the fourth phase of the cyber kill chain, which is a model to describe the stages of a cyberattack. Delivery refers to the transmission of the weaponized payload to the target system, such as via email attachments, web links, USB drives, or network connections. Delivery does not necessarily imply successful installation or execution of the payload, which are subsequent phases of the kill chain. References := Understanding Cisco Cybersecurity Operations Fundamentals (CBROPS) - Cisco, page 31.