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質問 # 154
Which compliance framework is primarily concerned with securing payment card data and ensuring it is protected against unauthorized access?
- A. FERPA
- B. HIPAA
- C. GDPR
- D. PCI-DSS
正解：D
解説：
The Payment Card Industry Data Security Standard (PCI-DSS) is a compliance framework developed by the major credit card companies to safeguard payment card data and prevent fraud. It provides guidelines, requirements, and best practices for organizations that handle cardholder information, ensuring that it is stored, processed, and transmitted securely.
質問 # 155
What is configuration management in the context of cybersecurity?
- A. Establishing role-based access controls
- B. Ensuring consistency and control over the configuration of IT systems
- C. Protecting the physical infrastructure of an organization
- D. Managing and securing access to network devices
正解：B
解説：
Configuration management in cybersecurity refers to the practice of ensuring consistency and control over the configuration of IT systems, including hardware, software, and network devices. This involves establishing and enforcing standardized configurations, monitoring and managing changes, and maintaining an accurate inventory of system configurations. Proper configuration management helps reduce the risk of configuration-related issues, vulnerabilities, and unauthorized changes that could compromise the security of IT systems.
質問 # 156
Which of the following is a characteristic of an IPv6 address?
- A. Uses colons as separators
- B. Supports a maximum of 4.3 billion unique addresses
- C. Consists of 32 bits
- D. Can be represented by both decimal and binary notation
正解：A
解説：
An IPv6 address consists of 128 bits, which is four times the size of an IPv4 address. Unlike IPv4 addresses that use periods (dots) as separators, IPv6 addresses use colons as separators. For example, an IPv6 address could be written as 2001:0db8:85a3:0000:0000:8a2e:0370:7334.
質問 # 157
Which of the following is a preventive control that can help in reducing the risk of future incidents?
- A. Conducting periodic employee training on incident response
- B. Creating secure backups of critical data
- C. Implementing strong access controls and authentication mechanisms
- D. Regularly updating antivirus signatures
正解：C
解説：
Implementing strong access controls and authentication mechanisms is a preventive control that can help reduce the risk of future incidents. By ensuring that only authorized individuals have access to systems and data, the likelihood of unauthorized access or malicious activity is minimized. While regularly updating antivirus signatures, conducting employee training, and creating secure backups are also important preventive measures, the focus here is on access controls and authentication mechanisms.
質問 # 158
Which of the following best describes the purpose of the MITRE ATT&CK; Matrix?
- A. To provide a standardized way to categorize cyber threat tactics and techniques
- B. To analyze the impact of cyber threats on critical infrastructure
- C. To map vulnerabilities and exposures in computer systems
- D. To track the global distribution of cyber threat actors
正解：A
解説：
The MITRE ATT&CK; Matrix provides a comprehensive framework that categorizes various tactics, techniques, and procedures (TTPs) used by cyber threat actors. It enables organizations to understand how different attackers operate and helps in developing effective cybersecurity defenses and detection mechanisms.
質問 # 159
Which of the following scanning techniques is considered non-intrusive?
- A. Network mapping
- B. Port scanning
- C. Vulnerability scanning
- D. Penetration testing
正解：A
解説：
Network mapping is a non-intrusive scanning technique used to discover and gather information about network devices, their IP addresses, and their interconnections. It focuses on identifying the network topology and does not involve actively examining the vulnerabilities or attempting to exploit them. Network mapping is primarily used for network documentation, planning, and troubleshooting purposes.
質問 # 160
What logging mechanism is commonly used to track and record security-related events and activities in an organization?
- A. Event Viewer
- B. Audit logs
- C. Syslog
- D. System and application logs
正解：B
解説：
Audit logs are specifically designed to track and record security-related events and activities in an organization. They capture information about user actions, system changes, and resource access attempts, providing a detailed record for forensic analysis, compliance auditing, and security investigation purposes.
質問 # 161
Which of the following ensures that a computer system has the latest security fixes and improvements?
- A. Device drivers
- B. Firmware updates
- C. Application updates
- D. Windows Update
正解：D
解説：
Windows Update is a Microsoft service that provides updates for the Windows operating system. It includes security patches and bug fixes to ensure the system has the latest security updates and enhancements. It is essential to regularly run Windows Update to protect against security vulnerabilities.
質問 # 162
Which of the following password policies is considered a best practice?
- A. Enforcing a minimum password length and complexity requirements
- B. Storing passwords in plain text format
- C. Allowing users to set easily guessable passwords
- D. Requiring passwords to be changed every 5 years
正解：A
解説：
Enforcing a minimum password length and complexity requirements is considered a best practice for password policies. This helps to ensure that passwords are not easily guessable and increases the security of user accounts.
質問 # 163
Which of the following best describes an Advanced Persistent Threat (APT)?
- A. A targeted cyber attack that aims to gain unauthorized access to sensitive information
- B. A type of malware designed to disrupt computer networks
- C. A security incident caused by human error or negligence
- D. An unintentional and harmless interaction with a computer system
正解：A
解説：
An APT is a sophisticated and ongoing cyber attack by threat actors with the objective of gaining unauthorized access to sensitive information or networks. Unlike traditional attacks, APTs are stealthy and persistent, often targeting specific organizations or individuals for an extended period of time.
質問 # 164
What action should be taken when a user reports a suspicious email with a potential phishing link?
- A. Delete the email and inform the user that it is safe to proceed.
- B. Forward the email to other users to raise awareness about potential threats.
- C. Click on the link to verify its validity before taking any action.
- D. Escalate the issue to the security team for further investigation.
正解：D
解説：
When a user reports a suspicious email with a potential phishing link, it is important to escalate the issue to the security team for further investigation. Phishing attacks can pose significant risks to organizations, and it is crucial to involve the appropriate experts to assess and address the threat appropriately.
質問 # 165
Which level of risk category would be associated with a vulnerability that has the potential to cause minor financial loss or impact?
- A. Extremely high risk
- B. Low risk
- C. High risk
- D. Medium risk
正解：B
解説：
A vulnerability that has the potential to cause minor financial loss or impact would be categorized as a low-risk level. Low-risk vulnerabilities pose a relatively smaller threat to an organization's assets, systems, or data. While they should not be ignored, low-risk vulnerabilities typically require less immediate attention and resources to mitigate.
質問 # 166
What type of encryption is used to secure data that is stored on a hard drive or other storage media?
- A. Public Key Infrastructure (PKI)
- B. Symmetric encryption
- C. Hash encryption
- D. File-based encryption
正解：B
解説：
Symmetric encryption is a type of encryption where the same key is used for both the encryption and decryption processes. It is commonly employed to secure data at rest, such as on a hard drive or other storage media. With symmetric encryption, the key must be kept secret to ensure the confidentiality of the encrypted data.
質問 # 167
What does the term "system logs" refer to in cybersecurity?
- A. Files containing network traffic data
- B. Logs generated by operating systems that record events and activities
- C. Information relating to the hardware components of a computer system
- D. Records of user activity on a computer system
正解：B
解説：
System logs, also known as event logs, are generated by operating systems and capture various events and activities that occur within a computer system. These logs provide valuable information for troubleshooting, detecting security incidents, and monitoring system health. They can include details about user logins, system errors, successful and failed login attempts, file access, network connections, and much more. Analyzing system logs is an essential part of cybersecurity, as it helps identify security breaches, anomalies, and potential threats.
質問 # 168
Which of the following best describes a vulnerability in the context of cybersecurity?
- A. A weakness in a network or system that can be exploited by attackers.
- B. A security feature implemented to protect a network or system.
- C. A method used to attack a network or system.
- D. A tool used to test the security of a network or system.
正解：A
解説：
A vulnerability refers to a weakness in a network or system that can be exploited by attackers. It can be a flaw or an oversight in the design, implementation, or configuration of a system, which may allow unauthorized access, data leakage, or other malicious activities.
質問 # 169
Which of the following is an example of a network vulnerability?
- A. Encrypting sensitive data
- B. Running outdated and unpatched software
- C. Using a strong password
- D. Implementing a firewall
正解：B
解説：
Running outdated and unpatched software is an example of a network vulnerability. Software updates often include patches to fix security vulnerabilities that have been discovered. Failing to install these updates or using outdated software increases the risk of an attacker exploiting known vulnerabilities to gain unauthorized access or compromise the network.
質問 # 170
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