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[Hardware] 300-215 Real Test Practice Materials - 300-215 Study Guide - Lead1Pass

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【Hardware】 300-215 Real Test Practice Materials - 300-215 Study Guide - Lead1Pass

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Cisco 300-215 Exam is an important certification for individuals who are interested in pursuing a career in cybersecurity. 300-215 exam covers a wide range of topics related to forensic analysis and incident response, and individuals who pass the exam will have a strong foundation in these areas. To prepare for the exam, individuals should have a solid understanding of networking concepts and hands-on experience with Cisco technologies.
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Cisco Conducting Forensic Analysis & Incident Response Using Cisco Technologies for CyberOps Sample Questions (Q10-Q15):NEW QUESTION # 10
Refer to the exhibit.

What should an engineer determine from this Wireshark capture of suspicious network traffic?
  • A. There are signs of ARP spoofing, and the engineer should use Static ARP entries and IP address-to- MAC address mappings as a countermeasure.
  • B. There are signs of SYN flood attack, and the engineer should increase the backlog and recycle the oldest half-open TCP connections.
  • C. There are signs of a malformed packet attack, and the engineer should limit the packet size and set a threshold of bytes as a countermeasure.
  • D. There are signs of a DNS attack, and the engineer should hide the BIND version and restrict zone transfers as a countermeasure.
Answer: B
Explanation:
In the provided Wireshark capture, we see multiple TCP SYN packets being sent from different source IP addresses to the same destination IP address(192.168.1.159:80)within a short time window. These SYN packets do not show a corresponding SYN-ACK or ACK response, indicating that these TCP connection requests are not being completed.
This pattern is indicative of aSYN flood attack, a type of Denial of Service (DoS) attack. In this attack, a malicious actor floods the target system with a high volume of TCP SYN requests, leaving the target's TCP connection queue (backlog) filled with half-open connections. This can exhaust system resources, causing legitimate connection requests to be denied or delayed.
Thecountermeasurefor this scenario, as highlighted in theCyberOps Technologies (CBRFIR) 300-215 study guideunderNetwork-Based Attacks and TCP SYN Flood Attacks, involves:
* Increasing the backlog queue: This allows the server to hold more half-open connections.
* Recycling the oldest half-open connections: This ensures that legitimate connections have a chance to be established if the backlog fills up.
Reference:CyberOps Technologies (CBRFIR) 300-215 study guide, Chapter 5: Identifying Attack Methods, SYN Flood Attack section, page 146-148.

NEW QUESTION # 11
Which technique is used to evade detection from security products by executing arbitrary code in the address space of a separate live operation?
  • A. token manipulation
  • B. process injection
  • C. privilege escalation
  • D. GPO modification
Answer: B

NEW QUESTION # 12
A cybersecurity analyst is analyzing a complex set of threat intelligence data from internal and external sources. Among the data, they discover a series of indicators, including patterns of unusual network traffic, a sudden increase in failed login attempts, and multiple instances of suspicious file access on the company's internal servers. Additionally, an external threat feed highlights that threat actors are actively targeting organizations in the same industry using ransomware. Which action should the analyst recommend?
  • A. Advocate providing additional training on secure login practices because the increase in failed login attempts is likely a result of employee error.
  • B. Propose isolation of affected systems and activating the incident response plan because the organization is likely under attack by the new ransomware strain.
  • C. Advise on monitoring the situation passively because network traffic anomalies are coincidental and unrelated to the ransomware threat.
  • D. Notify of no requirement for immediate action because the suspicious file access incidents are normal operational activities and do not indicate an ongoing threat.
Answer: B
Explanation:
The described scenario includes both internal alerts (unusual network traffic, failed logins, suspicious file access) and external intelligence indicating active ransomware campaigns in the same industry. This constitutes a strong combination of precursors and indicators, as defined in the NIST SP 800-61 incident handling model and reinforced in the Cisco CyberOps Associate curriculum.
According to the Cisco guide:
* "Once an incident has occurred, the IR team needs to contain it quickly before it affects other systems and networks within the organization."
* "The containment phase is crucial in stopping the threat from spreading and compromising more systems".
Given these indicators and the high-value nature of the data involved, it is essential to proactively isolate suspected systems and activate the incident response plan to prevent damage from potential ransomware.
-

NEW QUESTION # 13
A cybersecurity analyst is examining a complex dataset of threat intelligence information from various sources. Among the data, they notice multiple instances of domain name resolution requests to suspicious domains known for hosting C2 servers. Simultaneously, the intrusion detection system logs indicate a series of network anomalies, including unusual port scans and attempts to exploit known vulnerabilities. The internal logs also reveal a sudden increase in outbound network traffic from a specific internal host to an external IP address located in a high-risk region. Which action should be prioritized by the organization?
  • A. Data on ports being scanned should be collected and SSL decryption on Firewall enabled to capture the potentially malicious traffic.
  • B. Organization should focus on C2 communication attempts and the sudden increase in outbound network traffic via a specific host.
  • C. Focus should be applied toward attempts of known vulnerability exploitation because the attacker might land and expand quickly.
  • D. Threat intelligence information should be marked as false positive because unnecessary alerts impact security key performance indicators.
Answer: B
Explanation:
According to theCyberOps Technologies (CBRFIR) 300-215 study guidecurriculum, command-and-control (C2) communication is a strong indicator that a system has already been compromised and is actively under the control of an attacker. Sudden outbound traffic to high-risk regions and resolution of known malicious domains are high-confidence signs of an active threat. Therefore, prioritizing detection and disruption of this outbound traffic is critical to prevent further damage or data exfiltration.
While monitoring vulnerability exploitation (B) and gathering port scan data (D) are also valuable, they are more preventive or forensic in nature. The most immediate threat-and therefore the top priority-is stopping active C2 communications.

NEW QUESTION # 14
An engineer is investigating a ticket from the accounting department in which a user discovered an unexpected application on their workstation. Several alerts are seen from the intrusion detection system of unknown outgoing internet traffic from this workstation. The engineer also notices a degraded processing capability, which complicates the analysis process. Which two actions should the engineer take? (Choose two.)
  • A. Replace the faulty CPU.
  • B. Format the workstation drives.
  • C. Restore to a system recovery point.
  • D. Take an image of the workstation.
  • E. Disconnect from the network.
Answer: D,E
Explanation:
When suspicious activity is detected on a workstation, immediate steps need to be taken to preserve evidence and prevent further compromise:
* Disconnecting the system from the network (C)is crucial to stop potential exfiltration of data or ongoing communications with a command-and-control server. This isolation prevents further spread or damage while preserving the state of the compromised system for further investigation.
* Taking an image of the workstation (E)is part of the forensics acquisition process. It involves creating a bit-by-bit copy of the system's disk, which preserves all evidence in its current state. This allows for thorough forensic analysis without affecting the original evidence.
These steps align with the best practices outlined in the incident response and forensics processes (as described in theCyberOps Technologies (CBRFIR) 300-215 study guide). Specifically, in theIdentification and Containmentphases of the incident response cycle, it's emphasized that isolating the system and preserving evidence through imaging are critical to ensuring both containment of the threat and successful forensic investigation.
Reference:CyberOps Technologies (CBRFIR) 300-215 study guide, Chapter: Understanding the Security Incident Response Process, Identification and Containment Phases, page 102-104.

NEW QUESTION # 15
......
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