Updated Jun-2025 CFR-410 Exam Practice Test Questions
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CertNexus CyberSec First Responder (CFR-410) Certification Exam is an industry-leading certification that tests a candidate’s knowledge and skills in the area of cyber security incident response. CyberSec First Responder certification exam is designed to validate the candidate’s ability to detect, identify, and respond to cyber security incidents in a timely and effective manner. CyberSec First Responder certification is gaining popularity among various industries as cyber security continues to be a major concern for organizations.
NEW QUESTION # 74
When tracing an attack to the point of origin, which of the following items is critical data to map layer 2 switching?
- A. NAT table
- B. DNS cache
- C. CAM table
- D. ARP cache
Answer: D
Explanation:
The host that owns the IP address sends an ARP reply message with its physical address. Each host machine maintains a table, called ARP cache, used to convert MAC addresses to IP addresses. Since ARP is a stateless protocol, every time a host gets an ARP reply from another host, even though it has not sent an ARP request for that reply, it accepts that ARP entry and updates its ARP cache. The process of updating a target host's ARP cache with a forged entry is referred to as poisoning.
NEW QUESTION # 75
ABC Company uses technical compliance tests to verify that its IT systems are configured according to organizational information security policies, standards, and guidelines. Which two tools and controls can ABC Company use to verify that its IT systems are configured accordingly? (Choose two.)
- A. Implementing Automated Human Resource Procedures
- B. Implementing Baseline Configuration Security Controls
- C. Performing Vulnerability Assessments and Penetration Testing
- D. Implementing Automated Key Management Procedures
Answer: B,C
Explanation:
Performing Vulnerability Assessments and Penetration Testing: These tools are used to identify weaknesses in the system configurations and test whether the IT systems are vulnerable to various security threats, which helps verify compliance with security policies.
Implementing Baseline Configuration Security Controls: Baseline configuration controls ensure that IT systems are set up according to predefined, secure configurations, which helps ensure compliance with organizational security policies and standards.
NEW QUESTION # 76
Which of the following could be useful to an organization that wants to test its incident response procedures without risking any system downtime?
- A. Blue team exercise
- B. Tabletop exercise
- C. Business continuity exercise
- D. Red team exercise
Answer: C
NEW QUESTION # 77
While planning a vulnerability assessment on a computer network, which of the following is essential? (Choose two.)
- A. Identifying exposures
- B. Identifying critical assets
- C. Installing antivirus software
- D. Establishing scope
- E. Running scanning tools
Answer: A,D
NEW QUESTION # 78
During an incident, the following actions have been taken:
- Executing the malware in a sandbox environment
- Reverse engineering the malware
- Conducting a behavior analysis
Based on the steps presented, which of the following incident handling processes has been taken?
- A. Containment
- B. Eradication
- C. Identification
- D. Recovery
Answer: A
Explanation:
The "Containment, eradication and recovery" phase is the period in which incident response team tries to contain the incident and, if necessary, recover from it (restore any affected resources, data and/or processes).
NEW QUESTION # 79
An administrator investigating intermittent network communication problems has identified an excessive amount of traffic from an external-facing host to an unknown location on the Internet. Which of the following BEST describes what is occurring?
- A. The network is experiencing a denial of service (DoS) attack.
- B. Rogue hardware has been installed.
- C. An administrator has misconfigured a web proxy.
- D. A malicious user is exporting sensitive data.
Answer: D
NEW QUESTION # 80
When performing a vulnerability assessment from outside the perimeter, which of the following network devices is MOST likely to skew the scan results?
- A. Switch
- B. Firewall
- C. Access Point
- D. IDS
- E. Router
Answer: B
Explanation:
A firewall is most likely to skew the results of a vulnerability scan when performing an assessment from outside the perimeter. Firewalls are designed to filter and block traffic based on security rules, which can prevent scanners from accurately assessing vulnerabilities in the network. Firewalls may block or alter certain types of scan traffic, leading to incomplete or misleading results.
NEW QUESTION # 81
To minimize vulnerability, which steps should an organization take before deploying a new Internet of Things (IoT) device? (Choose two.)
- A. Changing the default password
- B. Enabling the firewall
- C. Disabling IPv6
- D. Setting up new users
- E. Updating the device firmware
Answer: B,E
NEW QUESTION # 82
Which of the following is an essential component of a disaster recovery plan?
- A. Product service agreements
- B. A dedicated incident response team
- C. Complete hardware and software inventories
- D. Memorandums of agreement with vendors
Answer: C
Explanation:
A complete hardware and software inventory is essential for a disaster recovery plan because it allows an organization to quickly assess which systems and resources are required to restore operations in the event of a disaster. This inventory helps ensure that critical components are accounted for and can be replaced or restored as needed.
NEW QUESTION # 83
Which approach to cybersecurity involves a series of defensive mechanisms that are layered to protect valuable data and information?
- A. Network segmentation
- B. Tiered security
- C. Defense in depth
- D. Endpoint detection and response
Answer: C
Explanation:
Defense in depth is a cybersecurity strategy that uses multiple layers of security controls and measures to protect data and systems. This layered approach ensures that if one security measure is bypassed, others will still provide protection, making it more difficult for attackers to succeed.
NEW QUESTION # 84
A security administrator is investigating a compromised host. Which of the following commands could the investigator use to display executing processes in real time?
- A. nice
- B. top
- C. pstree
- D. ps
Answer: B
NEW QUESTION # 85
Which two mitigation strategies can prevent an attack delivered via malware? (Choose two.)
- A. Implementing IDS
- B. Daily backups
- C. Multi-factor authentication
- D. Raising user awareness
- E. Application patching
Answer: D,E
Explanation:
Raising user awareness: Educating users about the dangers of malware, phishing, and safe browsing practices can help prevent malware infections that occur due to user actions.
Application patching: Regularly updating and patching applications ensures that known vulnerabilities, which could be exploited by malware, are fixed, reducing the risk of successful attacks.
NEW QUESTION # 86
In a Linux operating system, what kind of information does a /var/log/daemon.log file contain?
- A. Debug-related messages
- B. User password
- C. Various system background processes
- D. System messages
Answer: C
Explanation:
The /var/log/daemon.log file in a Linux operating system contains log entries related to various system background processes or daemons. These daemons run in the background and provide services like networking, security, and other system functions. This log file helps administrators monitor the activity and performance of these processes.
NEW QUESTION # 87
A security investigator has detected an unauthorized insider reviewing files containing company secrets.
Which of the following commands could the investigator use to determine which files have been opened by this user?
- A. netstat
- B. lsof
- C. ls
- D. ps
Answer: B
NEW QUESTION # 88
A government organization responsible for critical infrastructure is being attacked and files on the server been deleted. Which of the following are the most immediate communications that should be made regarding the incident? (Choose two.)
- A. Notifying law enforcement
- B. Notifying the media
- C. Notifying a mitigation expert
- D. Notifying the relevant vendor
- E. Notifying a national compute emergency response team (CERT) or cybersecurity incident response team (CSIRT)
Answer: C,E
NEW QUESTION # 89
Which three answer options are password attack methods and techniques? (Choose three.)
- A. Dictionary attack
- B. Hybrid attack
- C. Man-in-the-middle attack
- D. Cross-Site Scripting attack
- E. Brute force attack
Answer: A,B,E
Explanation:
Brute force attack: This method involves trying all possible combinations of characters until the correct password is found.
Hybrid attack: This is a combination of both dictionary and brute force attacks, where common words are tried first, followed by variations.
Dictionary attack: This method uses a precompiled list of words (a dictionary) to guess a password, often targeting common words or phrases.
NEW QUESTION # 90
The incident response team has completed root cause analysis for an incident. Which of the following actions should be taken in the next phase of the incident response process? (Choose two.)
- A. Updating policies and procedures
- B. Providing a briefing to management
- C. Investigating responsible staff
- D. Drafting a recovery plan for the incident
- E. Training staff for future incidents
Answer: A,D
NEW QUESTION # 91
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