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Cisco 300-215 Exam Syllabus Topics:

Section	Weight	Objectives
Forensics Techniques	20%	- Analyze digital evidence 1. Timeline analysis 2. Malware analysis basics 3. Memory forensics - Apply forensic tools 1. Splunk 2. Wireshark 3. YARA - Collect digital evidence 1. Network traffic analysis 2. Endpoint forensics 3. Log analysis
Forensics Processes	15%	- Follow forensic investigation methodology 1. Examination 2. Analysis 3. Reporting 4. Collection 5. Identification 6. Preservation - Apply evidence handling procedures 1. Maintaining integrity of evidence 2. Collection and preservation of volatile and non-volatile evidence
Incident Response Techniques	25%	- Detect incidents 1. Identify indicators of compromise (IoCs) 2. Analyze alerts from firewalls, IPS, and other sources - Use Cisco technologies for response 1. Cisco AMP for Endpoints/Network 2. Cisco Stealthwatch 3. Cisco SecureX 4. Cisco Umbrella Investigate - Respond to incidents 1. Eradicate threats 2. Contain threats 3. Triage and prioritize incidents
Fundamentals	20%	- Explain digital forensics concepts 1. Forensic readiness 2. Evidence preservation 3. Chain of custody - Explain legal and regulatory considerations 1. Compliance requirements 2. Privacy concerns - Describe incident response concepts 1. Incident response lifecycle (PICERL) 2. Roles and responsibilities in incident response 3. Incident response plan components
Incident Response Processes	20%	- Implement proactive threat hunting 1. Conduct audits 2. Identify potential threats - Perform post-incident activities 1. Recommend mitigation actions 2. Lessons learned 3. Improve incident response plan - Conduct root cause analysis 1. Analyze components for RCA report 2. Identify root cause of incidents

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Cisco Conducting Forensic Analysis & Incident Response Using Cisco Technologies for CyberOps Sample Questions (Q75-Q80):

NEW QUESTION # 75
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 a SYN 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.
The countermeasure for this scenario, as highlighted in the CyberOps Technologies (CBRFIR) 300-215 study guide under Network-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 # 76
Refer to the exhibit.

An internally deployed SIEM flags two login events associated with the same employee. Which type of IOC makes this activity require investigation?

A. Concurrent login anomalies
B. Anomalies in privileged-user account activity
C. Suspicious IP addresses
D. Impossible travel

Answer: D

Explanation:
The employee account appears in San Francisco at 11:00 a.m. and in London at 11:30 a.m. on the same date.
A person cannot physically travel between those cities in thirty minutes, so the geographic and temporal relationship is an impossible-travel indicator. The exhibit does not state that either IP address is independently malicious, that the account is privileged, or that both sessions overlap; therefore, options A, B, and C add facts not shown. This anomaly may indicate stolen credentials, session-token theft, VPN or proxy effects, or inaccurate geolocation, so the analyst must validate device, identity, MFA, VPN, and sign-in telemetry before declaring compromise. CBRFIR Incident Response Techniques objective 3.1 requires interpretation of SIEM alerts. Microsoft similarly defines impossible travel as activity from geographically distant locations within less time than physical travel would require. Microsoft impossible-travel detection

NEW QUESTION # 77
Refer to the exhibit.

Which two actions should be taken based on the intelligence information? (Choose two.)

A. Add a SIEM rule to alert on connections to identified domains.
B. Block network access to identified domains.
C. Route traffic from identified domains to block hole.
D. Use the DNS server to block hole all .shop requests.
E. Block network access to all .shop domains

Answer: A,B

Explanation:
The STIX intelligence feed in the exhibit identifies specific malicious domains, such as:
* fightcovid19.shop
* nocovid19.shop
* stopcovid19.shop
These are categorized as "Malicious FQDN Indicator." The recommended cybersecurity actions when such threat intelligence is received are:
* D. Block network access to identified domains: This directly prevents users or systems from communicating with known malicious infrastructure and is a critical first step in threat mitigation.
* B. Add a SIEM rule to alert on connections to identified domains: This ensures that any attempted communication with these domains is flagged for immediate review and action, enabling real-time threat detection and incident response.
Blocking all .shop domains (Option A or C) would be overbroad and potentially disruptive, as many legitimate websites also use that TLD. Option E (routing to block hole) could be valid as a DNS strategy, but B and D represent the most actionable and precise responses per standard incident response practices.
Reference:CyberOps Technologies (CBRFIR) 300-215 study guide, Chapter on "Threat Intelligence Platforms," covering how to operationalize STIX/TAXII indicators via blocking and SIEM integration.

NEW QUESTION # 78
An incident response team is recommending changes after analyzing a recent compromise in which:
a large number of events and logs were involved;
team members were not able to identify the anomalous behavior and escalate it in a timely manner; several network systems were affected as a result of the latency in detection; security engineers were able to mitigate the threat and bring systems back to a stable state; and the issue reoccurred shortly after and systems became unstable again because the correct information was not gathered during the initial identification phase.
Which two recommendations should be made for improving the incident response process? (Choose two.)

A. Modify the incident handling playbook and checklist to ensure alignment and agreement on roles, responsibilities, and steps before an incident occurs.
B. Improve the mitigation phase to ensure causes can be quickly identified, and systems returned to a functioning state.
C. Allocate additional resources for the containment phase to stabilize systems in a timely manner and reduce an attack's breadth.
D. Implement an automated operation to pull systems events/logs and bring them into an organizational context.
E. Formalize reporting requirements and responsibilities to update management and internal stakeholders throughout the incident-handling process effectively.

Answer: A,D

NEW QUESTION # 79
A security team detected an above-average amount of inbound tcp/135 connection attempts from unidentified senders. The security team is responding based on their incident response playbook. Which two elements are part of the eradication phase for this incident? (Choose two.)

A. intrusion prevention system
B. enterprise block listing solution
C. data and workload isolation
D. centralized user management
E. anti-malware software

Answer: A,D

Explanation:
The eradication phase in incident response involves eliminating the root cause of the incident and strengthening defenses to prevent reoccurrence. In this case:
Intrusion Prevention System (D): Adding new rules to the IPS to detect and block malicious activity on TCP
/135 is a direct eradication step to remove the threat's entry point and prevent future attacks.
Centralized User Management (C): Hardening user accounts, removing unnecessary permissions, and applying tighter authentication/authorization measures helps eliminate the possibility that threat actors could exploit weak or mismanaged accounts to continue accessing the system.
Although anti-malware software (A) and enterprise block listing (E) are valuable, the most direct eradication steps here specifically involve managing network access (via IPS) and strengthening user controls (via centralized user management), especially when TCP/135 (MSRPC endpoint mapper) can be used to enumerate services and potentially access vulnerable endpoints remotely.
This aligns with best practices outlined in incident response frameworks (such as the NIST SP 800-61 and referenced resources), which emphasize closing the exploited entry points (in this case, TCP/135) and removing any lingering access points through user management and network control enhancements.
Reference:
CyberOps Technologies (CBRFIR) 300-215 study guide, Chapter: Understanding the Incident Response Process, Eradication Phase, page 105-106.
External Reference: "The Core Phases of Incident Response - Remediation," Cipher blog [1].
External Reference: "Service Overview and Network Port Requirements," Microsoft documentation [2].

NEW QUESTION # 80
......

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