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質問 # 176
Which of the following is true about security policies and procedures?
- A. They should be documented once and never changed.
- B. They should only be accessible to the IT department.
- C. They should be kept confidential and not shared with employees.
- D. They should be regularly reviewed and updated to reflect changing threats and technologies
正解：D
解説：
Option 1: Correct: Security policies and procedures should be regularly reviewed and updated to ensure they align with changing threats and technologies. This helps to maintain the effectiveness of the policies and processes.
Option 2: Incorrect: Security policies and procedures should be accessible to relevant employees and stakeholders, not restricted only to the IT department. It is important for everyone to understand and adhere to the policies and procedures.
Option 3: Incorrect: Security policies and procedures should be regularly updated as needed, not documented once and never changed. The changing threat landscape and evolving technologies necessitate the periodic review and update of security policies and procedures.
Option 4: Incorrect: Security policies and procedures should be communicated and shared with employees to ensure everyone understands and follows them. Keeping them confidential and not sharing them would hinder their effectiveness.
質問 # 177
Which of the following security events should be escalated?
- A. A user reports a suspicious email with a potential phishing link.
- B. A user forgets their password and requests a reset.
- C. A system administrator detects a critical vulnerability on a server.
- D. A firewall rule is triggered and blocks external access to a network resource.
正解：C
解説：
Security events that should be escalated typically include critical vulnerabilities that could lead to potential breaches or unauthorized access. In this case, the system administrator detecting a critical vulnerability on a server requires immediate attention and escalation to ensure prompt action can be taken to mitigate the risk.
質問 # 178
What is the purpose of an Access Control List (ACL) in cybersecurity?
- A. To filter network traffic based on predefined rules
- B. To encrypt traffic between two networks
- C. To authenticate users before granting them access
- D. To monitor network traffic for potential security threats
正解：A
解説：
An Access Control List (ACL) is a list of rules that determines which network traffic is allowed and which is denied. It is used to filter network traffic based on criteria such as source/destination IP address, port numbers, and protocols. By implementing an ACL, organizations can control access to their networks, prevent unauthorized access, and enforce security policies.
質問 # 179
Which feature allows endpoints to communicate directly with each other, bypassing the network?
- A. VPN
- B. IPS
- C. Peer-to-Peer
- D. Firewall
正解：C
解説：
Option 1: Incorrect. A firewall is a network security device that monitors and filters incoming and outgoing network traffic based on predetermined security rules.
Option 2: Incorrect. An IPS (Intrusion Prevention System) is a network security device that monitors network traffic for malicious activity and takes immediate action to prevent attacks.
Option 3: Incorrect. A VPN (Virtual Private Network) is a secure connection between two or more endpoints over a public network, providing encryption and privacy for data communication.
Option 4: Correct. Peer-to-peer (P2P) is a decentralized communication model where endpoints can directly communicate with each other without the need for a central server or network infrastructure.
質問 # 180
Which of the following best describes asset management in the context of cybersecurity?
- A. Tracking software licenses
- B. Identifying and protecting valuable resources
- C. Monitoring user activity
- D. Managing network infrastructure
正解：B
解説：
Asset management in a cybersecurity context involves identifying and protecting valuable resources within an organization. This includes identifying critical systems, data, and information that need to be protected from unauthorized access, modification, or destruction.
質問 # 181
What is the purpose of incident response planning in cybersecurity?
- A. To conduct forensic investigations after cybersecurity incidents
- B. To prevent cybersecurity incidents from occurring
- C. To detect and respond to cybersecurity incidents in a timely and effective manner
- D. To recover from cybersecurity incidents and restore normal business operations
正解：C
解説：
Incident response planning in cybersecurity focuses on establishing processes and procedures to detect, respond to, and mitigate the impact of cybersecurity incidents. It ensures that organizations have the necessary measures in place to identify incidents promptly, contain them, and minimize the potential damage. The goal is to respond to incidents in a timely and effective manner to protect sensitive data and maintain business continuity.
質問 # 182
What is an insider threat?
- A. The accidental disclosure of sensitive information.
- B. A vulnerability in an organization's network infrastructure.
- C. A threat posed by an individual with authorized access to an organization's systems and data.
- D. A security breach caused by an external attacker.
正解：C
解説：
Insider threats refer to risks and vulnerabilities that arise from individuals who have authorized access to an organization's systems, networks, or data. These individuals may intentionally or unintentionally cause harm, such as stealing confidential information, sabotaging systems, or disclosing sensitive data to unauthorized entities.
質問 # 183
Which of the following is the most secure and recommended method for storing sensitive user data in a database?
- A. Using hashing algorithms
- B. Using symmetric encryption
- C. Storing the data in plain text
- D. Using asymmetric encryption
正解：A
解説：
Option 1: Incorrect. Storing sensitive user data in plain text is highly insecure and not recommended. If a database breach occurs, all the data will be exposed without any protection.
Option 2: Incorrect. Using symmetric encryption would require storing the encryption key securely, which can be difficult. Additionally, any access to the data would require the encryption key, adding complexity and potential vulnerabilities.
Option 3: Correct. Using hashing algorithms is the most secure and recommended method for storing sensitive user data in a database. Hashing algorithms convert the data into a fixed-size string, making it difficult to reverse-engineer and obtain the original data. This ensures that even if a breach occurs, the sensitive data remains protected.
Option 4: Incorrect. Using asymmetric encryption would also require storing the encryption keys securely and adds unnecessary complexity for data retrieval, making it less practical for storing sensitive user data in a database.
質問 # 184
What type of security technique involves setting up a decoy system or network to lure and trap potential attackers?
- A. Honeypot
- B. Proxy
- C. DMZ
- D. Virtualization
正解：A
解説：
A honeypot is a security technique that involves setting up a decoy system or network to attract potential attackers. The purpose of a honeypot is to gather information about attackers' tactics, techniques, and intentions, allowing organizations to learn more about the threats they face and improve their defenses.
By monitoring the activities within a honeypot, organizations can gain valuable insights into emerging attack methods and enhance their overall cybersecurity strategy.
質問 # 185
Which of the following best describes the concept of "defense in depth" in cybersecurity?
- A. Deploying advanced encryption algorithms to secure sensitive data
- B. Regularly conducting training programs for employees to promote cybersecurity awareness
- C. Utilizing multiple layers of security measures to protect against threats
- D. Establishing strong password policies and enforcing multi-factor authentication
正解：C
解説：
Defense in depth refers to the practice of implementing multiple layers of security controls and measures to protect against various cyber threats. This approach reduces the likelihood of a single point of failure and increases the overall resilience of the cybersecurity infrastructure.
質問 # 186
Which of the following is a unique identifier assigned to a network interface card (NIC)?
- A. Subnet mask
- B. IP address
- C. Default gateway
- D. MAC address
正解：D
解説：
A Media Access Control (MAC) address is a unique identifier assigned to a network interface card (NIC) by the manufacturer. It is a 48-bit address typically represented as six groups of two hexadecimal digits separated by colons or hyphens. MAC addresses are used for communication at the data link layer of the network stack.
質問 # 187
Which of the following options is an example of a cybersecurity news and subscription service?
- A. SIEM (Security Information and Event Management) system
- B. Email filtering software
- C. VPN (Virtual Private Network)
- D. Firewall
正解：A
解説：
A SIEM system is an example of a cybersecurity news and subscription service. It collects and analyzes security event data from various sources and provides real-time alerts and reports to enhance threat detection and management. It provides valuable insights into the cybersecurity landscape, including news and updates related to security incidents, vulnerabilities, and emerging threats.
質問 # 188
Why is it important to stay current with automated threat intelligence technologies?
- A. To enhance the effectiveness of security measures
- B. All of the above
- C. To leverage the latest advancements in machine learning and AI
- D. To adapt to evolving cybersecurity threats
正解：B
解説：
Staying current with automated threat intelligence technologies is vital in the field of cybersecurity. Firstly, as cyber threats continuously evolve, staying up to date allows organizations to adapt their defenses and countermeasures accordingly. Secondly, leveraging the latest advancements in machine learning and artificial intelligence helps improve the accuracy and efficiency of threat detection and response. Lastly, by staying current, organizations can enhance the overall effectiveness of their security measures and stay ahead of potential threats.
質問 # 189
Which network security feature helps protect against unauthorized data access and ensures confidentiality of sensitive information?
- A. Antivirus
- B. VPN
- C. Firewall
- D. Intrusion Detection System
正解：B
解説：
Option 1: Incorrect. A firewall is responsible for controlling incoming and outgoing network traffic based on predetermined security rules. While it can help protect against unauthorized access, it does not specifically ensure confidentiality of sensitive information.
Option 2: Correct. A VPN (Virtual Private Network) creates a secure, encrypted connection between a user's device and a private network, such as a corporate network, over the internet. This helps protect against unauthorized data access and ensures the confidentiality of sensitive information.
Option 3: Incorrect. An Intrusion Detection System (IDS) monitors network traffic for suspicious activity or known attack patterns.
While it can help detect and alert to potential unauthorized access attempts, it does not specifically ensure confidentiality of sensitive information.
Option 4: Incorrect. An antivirus software is used to detect, prevent, and remove malware infections. While it can help protect against unauthorized access, it does not specifically ensure confidentiality of sensitive information.
質問 # 190
Which of the following best defines the concept of preserving digital evidence?
- A. Destroying digital evidence after analysis to save storage space.
- B. Encrypting the digital evidence to prevent unauthorized access.
- C. Gathering all digital evidence in a physical location.
- D. Making an exact copy of the digital evidence for analysis.
正解：D
解説：
Preserving digital evidence involves creating an exact copy of the original evidence to be used for analysis. This ensures that the original evidence remains intact and uncontaminated, while allowing investigators to work with a replicated version. It is crucial to prevent any modifications to the original evidence, as any changes can compromise the accuracy and integrity of the investigation.
質問 # 191
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