Pass the Cisco CyberOps Associate 200-201 Questions and answers with ExamsMirror

False-positive alerts are alerts that are triggered by benign or normal network traffic and are mistakenly identified as malicious. False positives can have a negative impact on business as they may consume the resources and time of the security team that need to analyze and verify them. True-positive alerts are alerts that correctly identify malicious traffic or activity and require proper incident response procedures. True positives can help the security team to quickly detect and mitigate threats and minimize the damage to the organization. References := Understanding Cisco Cybersecurity Operations Fundamentals (CBROPS) - Cisco, page 92; [Cisco CyberOps Associate CBROPS 200-201 Official Cert Guide], page 98

Resource exhaustion is an evasion technique where an attacker overwhelms a system with a high volume of requests from multiple sources. This can cause the system to become overloaded and unable to process legitimate traffic, potentially allowing the attacker to bypass security measures like intrusion detection systems.

References := The answers are based on the knowledge from the Understanding Cisco Cybersecurity Operations Fundamentals (CBROPS) course material, which covers various cybersecurity concepts, including file identification methods, application control technologies, firewall utilities, and evasion techniques

According to the NIST SP 800-61 incident handling process, the SOC team should first isolate the affected endpoints to prevent further spread of the attack and take disk images for analysis (A). This helps in preserving evidence for a thorough investigation. The next step would be to block the connection to the C&C server on the perimeter next-generation firewall ©, which helps to cut off the communication between the compromised endpoint and the attacker’s server, thereby mitigating the threat123.

 To analyze both payload and header information, an engineer must capture the full packet data. This includes all protocol and payload information for the traffic, allowing for a comprehensive analysis of the data being transmitted5678. References: Full packet capture is a common practice in network monitoring and security, as it provides detailed insights into the data transmitted over the network, including both payload and header information

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.

The ‘detection and analysis’ phase of incident response includes identifying all hosts affected by an attack. This step involves analyzing the scope of the incident, determining which systems and data are impacted, and understanding the nature of the attack to inform subsequent containment and eradication efforts45.

References :=

CrowdStrike’s overview of incident response frameworks and steps4.

VCEGuide’s explanation of incident response steps

 The discrepancy described suggests that the system had a Host Intrusion Detection System (HIDS) installed. HIDS are designed to monitor and analyze the internals of a computing system for signs of intrusion and policy violations. While they can detect unauthorized activities, they do not take direct action to stop an attack; this is typically the role of an intrusion prevention system. Therefore, the alert was generated, but no mitigation action was taken because the HIDS does not have the capability to intervene.

References := The Understanding Cisco Cybersecurity Operations Fundamentals (CBROPS) course material covers the functions and limitations of various security systems, including HIDS, and their role within a Security Operations Center (SOC)1.

Social engineering is a tactic used by attackers to manipulate individuals into divulging confidential information, such as passwords. In this scenario, the attacker is impersonating a colleague by using a similar email address with a missing letter, attempting to trick the employee into revealing sensitive information.