Free ISA Threat Analysis & Incident Response Questions and Answers — Questions and Answers

Question 1: What is the first step in the incident response process?

Containment
Preparation (Correct answer)
Eradication
Recovery

Correct answer: Preparation

The first step in the incident response process is preparation. This phase involves establishing policies, procedures, and teams, conducting training, and implementing necessary tools and technologies *before* an incident occurs. Effective preparation is crucial for an efficient and successful response when an actual security incident takes place, minimizing potential damage and recovery time.

Question 2: Which tool is commonly used to analyze network traffic for threats?

Nmap
Wireshark (Correct answer)
Metasploit
Nessus

Correct answer: Wireshark

Wireshark is a powerful and widely used open-source network protocol analyzer. It allows security analysts to capture and interactively browse the data flowing on a network, making it an essential tool for troubleshooting network problems, analyzing network traffic, and detecting potential security threats or anomalies. Its deep packet inspection capabilities are invaluable for forensic analysis.

Question 3: What does IOC (Indicators of Compromise) refer to?

A list of compliant employees
Evidence of a potential security breach (Correct answer)
A type of encryption standard
A compliance checklist

Correct answer: Evidence of a potential security breach

Indicators of Compromise (IOCs) are forensic artifacts found on a network or operating system that indicate a high probability of a computer intrusion. These can include unusual network traffic, malicious file hashes, suspicious registry keys, or unusual login patterns. Identifying IOCs is crucial for early detection and response to security breaches, allowing organizations to proactively defend against threats.

Question 4: Which phase of incident response involves isolating affected systems?

Preparation
Containment (Correct answer)
Identification
Lessons Learned

Correct answer: Containment

Containment is a critical phase in incident response that involves isolating affected systems or networks to prevent the incident from spreading further and causing more damage. This step aims to limit the scope and impact of the breach, allowing the incident response team to then focus on eradication and recovery. Effective containment minimizes the overall harm to the organization.

Question 5: What is the purpose of a SIEM system in threat analysis?

To automate software updates
To provide real-time analysis of security alerts (Correct answer)
To manage employee schedules
To design network architecture

Correct answer: To provide real-time analysis of security alerts

A Security Information and Event Management (SIEM) system collects and aggregates log data and security events from various sources across an organization's IT infrastructure. Its primary purpose is to provide real-time analysis of these security alerts, enabling rapid detection of potential threats, compliance reporting, and incident response. SIEMs are essential for comprehensive threat analysis and proactive security monitoring.

Question 6: Which of the following is a characteristic of an APT (Advanced Persistent Threat)?

Short duration and low complexity
Long-term presence and stealthy operations (Correct answer)
Random targeting of individuals
Use of only publicly available tools

Correct answer: Long-term presence and stealthy operations

An Advanced Persistent Threat (APT) is characterized by its long-term presence within a target network, often for months or even years, and its stealthy, sophisticated operations. APT actors typically aim for specific high-value targets, using advanced techniques to evade detection and exfiltrate sensitive data over extended periods, rather than conducting quick, disruptive attacks. Their persistence and advanced methods make them particularly challenging to detect and mitigate.

Question 7: What is the primary goal of the eradication phase in incident response?

To document the incident
To eliminate the threat from the environment (Correct answer)
To notify law enforcement
To restore data from backups

Correct answer: To eliminate the threat from the environment

The eradication phase in incident response focuses on removing the root cause of an incident and eliminating the threat from the environment. This involves actions like isolating infected systems, removing malware, patching vulnerabilities, and disabling compromised accounts. Its primary objective is to ensure the threat is completely gone before recovery begins, preventing further damage or reinfection.

Question 8: Which framework provides guidelines for incident response?

GDPR
NIST SP 800-61 (Correct answer)
PCI DSS
ISO 27001

Correct answer: NIST SP 800-61

NIST Special Publication 800-61, titled "Computer Security Incident Handling Guide," provides comprehensive guidelines for establishing and implementing an effective incident response capability. It outlines the phases of incident response (preparation, detection & analysis, containment, eradication & recovery, post-incident activity) and offers best practices for organizations to manage security incidents efficiently. This framework is widely recognized and adopted in the cybersecurity industry.

Question 9: What is a kill chain in threat analysis?

A list of terminated employees
A sequence of stages in a cyberattack (Correct answer)
A hardware component in servers
A compliance document

Correct answer: A sequence of stages in a cyberattack

The cyber kill chain is a framework developed by Lockheed Martin that describes the typical stages an adversary goes through during a cyberattack. It breaks down an attack into distinct phases, such as reconnaissance, weaponization, delivery, exploitation, installation, command and control, and actions on objectives. Understanding these stages helps organizations identify and disrupt attacks at various points, improving their defensive strategies and incident response.

Free ISA Threat Analysis & Incident Response Questions and Answers

What is the first step in the incident response process?