100-160認証試験の問題集解答を提供しています [2025年04月]
更新された100-160試験練習テスト問題
質問 # 109
Which protocol is used for communication between web browsers and web servers?
- A. HTTP
- B. ICMP
- C. TCP
- D. UDP
正解：A
解説：
HTTP (Hypertext Transfer Protocol) is the protocol used for communication between web browsers (client) and web servers. It allows for the exchange of hypertext, which includes text, images, and other resources, over the Internet. HTTP operates on top of TCP, ensuring reliable delivery of data.
質問 # 110
Which of the following best describes risks in the context of cybersecurity?
- A. The process of identifying and assessing potential threats to an organization's security
- B. The extent to which vulnerabilities can be exploited
- C. Potential losses or negative impacts associated with cybersecurity threats and vulnerabilities
- D. The likelihood of a cybersecurity incident occurring
正解：C
解説：
Risks in the context of cybersecurity refer to potential losses or negative impacts that can be caused by cybersecurity threats and vulnerabilities. These risks encompass various aspects such as financial losses, reputational damage, operational disruptions, or compromise of sensitive data. Understanding and managing risks is crucial in developing effective cybersecurity strategies to protect an organization's assets and ensure business continuity.
質問 # 111
What is the general motivation behind an Advanced Persistent Threat (APT)?
- A. Publicity
- B. Financial gain
- C. Random disruption
- D. Revenge
正解：B
解説：
The general motivation behind an APT is often financial gain. Threat actors conducting APTs aim to gain unauthorized access to valuable information, such as financial data or intellectual property, with the intention of extracting monetary value from their targets.
質問 # 112
What is the purpose of Tactics in the context of cybersecurity?
- A. To identify specific cyber threat actors
- B. To track the impact of a cyberattack on the integrity of data
- C. To categorize the methods and strategies employed by cyber threat actors
- D. To determine the motive behind a cyberattack
正解：C
解説：
Tactics in cybersecurity refer to the methods and strategies used by cyber threat actors to achieve their objectives. Understanding and categorizing these tactics help organizations assess their vulnerability to specific attacks and develop appropriate defense measures.
質問 # 113
Which of the following features help to secure a wireless SoHo network from unauthorized access?
- A. Weak encryption
- B. MAC filtering
- C. SSID broadcast
- D. Default admin credentials
正解：B
質問 # 114
What is the purpose of multi-factor authentication?
- A. To restrict access to certain users by requiring additional authorization
- B. To provide multiple layers of security by requiring users to provide more than one form of identification
- C. To prevent unauthorized access by encrypting user credentials
- D. To simplify the login process by only requiring one form of identification
正解：B
解説：
Option 1: Correct. Multi-factor authentication adds an extra layer of security by requiring users to provide more than one form of identification, such as a password and a fingerprint or a security token.
Option 2: Incorrect. Multi-factor authentication does not simplify the login process, but rather adds an additional step to verify the user's identity.
Option 3: Incorrect. While multi-factor authentication can help restrict access to certain users, its main purpose is to provide an extra layer of security rather than additional authorization.
Option 4: Incorrect. While encryption is an important security measure, multi-factor authentication is specifically designed to provide multiple layers of security by requiring multiple forms of identification.
質問 # 115
What should be done when a user forgets their password and requests a reset?
- A. Escalate the request to the user's supervisor for approval.
- B. Reset the password immediately without any further action.
- C. Verify the user's identity and follow the organization's password reset process.
- D. Inform the user that password resets are not allowed for security reasons.
正解：C
解説：
When a user forgets their password and requests a reset, it is necessary to verify the user's identity and follow the organization's established password reset process. Password resets may involve sensitive information and can lead to unauthorized access if not handled appropriately. Therefore, following the organization's procedures helps ensure the security and integrity of the password reset process.
質問 # 116
What is the primary objective of identifying vulnerabilities in cybersecurity?
- A. To fix and eliminate weaknesses in a network or system.
- B. To enhance the performance of a network or system.
- C. To keep the existence of vulnerabilities hidden from attackers.
- D. To develop efficient attack methods.
正解：A
解説：
The primary objective of identifying vulnerabilities in cybersecurity is to identify weaknesses or flaws in a network or system in order to fix and eliminate them. By addressing vulnerabilities, organizations can enhance the security of their networks and systems, reducing the risk of unauthorized access or data breaches.
質問 # 117
Which command-line tool is commonly used to test network connectivity and measure response time?
- A. netstat
- B. nslookup
- C. ping
- D. tcpdump
正解：C
解説：
The correct command-line tool for testing network connectivity and measuring response time is ping. It sends ICMP echo request packets to a specified network device or IP address and waits for the corresponding echo reply, helping to verify if a host is reachable and measure packet latency. However, it is important to note that although ping can provide some basic network testing, it does not capture traffic or packet contents like tcpdump.
質問 # 118
Which of the following is NOT an essential security principle?
- A. Complexity
- B. Confidentiality
- C. Integrity
- D. Availability
正解：A
解説：
Complexity is not considered an essential security principle. The essential security principles are confidentiality, availability, and integrity. Confidentiality ensures that information is only accessible to authorized individuals or entities. It focuses on protecting sensitive data from unauthorized disclosure or access. Availability ensures that information and resources are accessible when needed. It emphasizes the need for systems and networks to be operational and usable, with minimal downtime or interruptions. Integrity ensures that information is accurate, complete, and unaltered. It focuses on maintaining the trustworthiness and reliability of data and preventing unauthorized modifications. Complexity, although important in certain areas of cybersecurity, is not considered an essential security principle on its own. It often relates to the design and implementation of security controls or measures, rather than being a fundamental principle.
質問 # 119
What is the main purpose of risk management in the context of cybersecurity?
- A. To transfer all cybersecurity risks to a third-party vendor.
- B. To eliminate all possible risks to an organization's cybersecurity.
- C. To identify and prioritize potential cybersecurity risks for effective mitigation.
- D. To ignore potential cybersecurity risks to minimize costs.
正解：C
解説：
The main purpose of risk management in the context of cybersecurity is to identify and prioritize potential risks associated with a system, network, or application. By understanding the risks, organizations can develop effective mitigation strategies and allocate resources accordingly. Risk management involves assessing the likelihood and impact of potential risks, determining their significance to the organization, and implementing appropriate controls to mitigate or reduce those risks to an acceptable level.
質問 # 120
Which network security feature helps protect against unauthorized data access and ensures confidentiality of sensitive information?
- A. Firewall
- B. VPN
- C. Intrusion Detection System
- D. Antivirus
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 # 121
Why is it important to stay current with automated threat intelligence technologies?
- A. To leverage the latest advancements in machine learning and AI
- B. To enhance the effectiveness of security measures
- C. All of the above
- D. To adapt to evolving cybersecurity threats
正解：C
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 # 122
Which of the following best describes asset management in the context of cybersecurity?
- A. Identifying and protecting valuable resources
- B. Tracking software licenses
- C. Monitoring user activity
- D. Managing network infrastructure
正解：A
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 # 123
Why is it important to regularly update software and firmware in a network or system?
- A. To prevent vulnerabilities from being discovered.
- B. To ensure compatibility with different devices.
- C. To improve the performance of the network or system.
- D. To patch known vulnerabilities and security flaws.
正解：D
解説：
Regularly updating software and firmware in a network or system is crucial to patch known vulnerabilities and security flaws. Software vendors frequently release updates to address any identified vulnerabilities and provide necessary security patches. By keeping systems up to date, organizations can mitigate the risk of exploitation through known vulnerabilities.
質問 # 124
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