[2023年12月01日] 信頼され続ける212-82試験のコツがあるPDF試験材料
2023年最新の212-82テスト解説（更新されたのは104問があります)
Eccouncil 212-82認定試験は、サイバーセキュリティでのキャリアを追求することに関心のある個人の知識とスキルを評価するように設計されています。この認定は世界的に認識されており、サイバーセキュリティ業界で非常に尊敬されています。この試験では、ネットワークセキュリティ、システムセキュリティ、暗号化、インシデント対応、脅威インテリジェンスなど、さまざまなサイバーセキュリティドメインの候補者の習熟度のテストに焦点を当てています。
質問 # 53
Camden, a network specialist in an organization, monitored the behavior of the organizational network using SIFM from a control room. The SIEM detected suspicious activity and sent an alert to the camer a. Based on the severity of the incident displayed on the screen, Camden made the correct decision and immediately launched defensive actions to prevent further exploitation by attackers.
Which of the following SIEM functions allowed Camden to view suspicious behavior and make correct decisions during a security incident?
- A. Data aggregation
- B. Application log monitoring
- C. Dashboard
- D. Log Retention
正解：C
解説：
Dashboard is the SIEM function that allowed Camden to view suspicious behavior and make correct decisions during a security incident. SIEM (Security Information and Event Management) is a system or software that collects, analyzes, and correlates security data from various sources, such as logs, alerts, events, etc., and provides a centralized view and management of the security posture of a network or system. SIEM can be used to detect, prevent, or respond to security incidents or threats. SIEM consists of various functions or components that perform different tasks or roles. Dashboard is a SIEM function that provides a graphical user interface (GUI) that displays various security metrics, indicators, alerts, reports, etc., in an organized and interactive manner. Dashboard can be used to view suspicious behavior and make correct decisions during a security incident. In the scenario, Camden monitored the behavior of the organizational network using SIEM from a control room. The SIEM detected suspicious activity and sent an alert to Camden. Based on the severity of the incident displayed on the screen, Camden made the correct decision and immediately launched defensive actions to prevent further exploitation by attackers. This means that he used the dashboard function of SIEM for this purpose. Application log monitoring is a SIEM function that collects and analyzes application logs, which are records of events or activities that occur within an application or software. Log retention is an SIEM function that stores and preserves logs for a certain period of time or indefinitely for future reference or analysis. Data aggregation is an SIEM function that combines and normalizes data from different sources into a common format or structure.
質問 # 54
Kayden successfully cracked the final round of interview at an organization. After few days, he received his offer letter through an official company email address. The email stated that the selected candidate should respond within a specified time. Kayden accepted the opportunity and provided e-signature on the offer letter, then replied to the same email address. The company validated the e-signature and added his details to their database. Here, Kayden could not deny company's message, and company could not deny Kayden's signature.
Which of the following information security elements was described in the above scenario?
- A. Availability
- B. Integrity
- C. Non-repudiation
- D. Confidentiality
正解：C
質問 # 55
Omar, an encryption specialist in an organization, was tasked with protecting low-complexity applications such as RFID tags, sensor-based applications, and other IbT-based applications. For this purpose, he employed an algorithm for all lower-powered devices that used less power and resources without compromising device security.
identify the algorithm employed by Omar in this scenario.
- A. Elliptic curve cryptography
- B. Homomorphic encryption
- C. Lightweight cryptography
- D. Quantum cryptography
正解：C
解説：
Lightweight cryptography is an algorithm that is designed for low-complexity applications such as RFID tags, sensor-based applications, and other IoT-based applications. Lightweight cryptography uses less power and resources without compromising device security. Lightweight cryptography can be implemented using symmetric-key algorithms, asymmetric-key algorithms, or hash functions1.
質問 # 56
Kasen, a cybersecurity specialist at an organization, was working with the business continuity and disaster recovery team. The team initiated various business continuity and discovery activities in the organization. In this process, Kasen established a program to restore both the disaster site and the damaged materials to the pre-disaster levels during an incident.
Which of the following business continuity and disaster recovery activities did Kasen perform in the above scenario?
- A. Response
- B. Recovery
- C. Prevention
- D. Resumption
正解：B
解説：
Recovery is the business continuity and disaster recovery activity that Kasen performed in the above scenario. Business continuity and disaster recovery (BCDR) is a process that involves planning, preparing, and implementing various activities to ensure the continuity of critical business functions and the recovery of essential resources in the event of a disaster or disruption. BCDR activities can be categorized into four phases: prevention, response, resumption, and recovery . Prevention is the BCDR phase that involves identifying and mitigating potential risks and threats that can cause a disaster or disruption. Response is the BCDR phase that involves activating the BCDR plan and executing the immediate actions to protect people, assets, and operations during a disaster or disruption. Resumption is the BCDR phase that involves restoring the minimum level of services and functions required to resume normal business operations after a disaster or disruption. Recovery is the BCDR phase that involves restoring both the disaster site and the damaged materials to the pre-disaster levels during an incident.
質問 # 57
Giovanni, a system administrator, was tasked with configuring permissions for employees working on a new project. Hit organization used active directories (ADs) to grant/deny permissions to resources Giovanni created a folder for AD users with the required permissions and added all employees working on the new project in it. Identify the type of account created by Giovanni in this scenario.
- A. Shared account
- B. Croup-based account
- C. Application account
- D. Third-party account
正解：B
解説：
Group-based account is the type of account created by Giovanni in this scenario. An account is a set of credentials, such as a username and a password, that allows a user to access a system or network. An account can have different types based on its purpose or usage. A group-based account is a type of account that allows multiple users to access a system or network with the same credentials and permissions. A group-based account can be used to simplify the management of users and resources by assigning them to groups based on their roles or functions. In the scenario, Giovanni was tasked with configuring permissions for employees working on a new project. His organization used active directories (ADs) to grant/deny permissions to resources. Giovanni created a folder for AD users with the required permissions and added all employees working on the new project in it. This means that he created a group-based account for those employees. A third-party account is a type of account that allows an external entity or service to access a system or network with limited permissions or scope. A shared account is a type of account that allows multiple users to access a system or network with the same credentials but different permissions. An application account is a type of account that allows an application or software to access a system or network with specific permissions or functions.
質問 # 58
Maisie. a new employee at an organization, was given an access badge with access to only the first and third floors of the organizational premises. Maisie Hied scanning her access badge against the badge reader at the second-floor entrance but was unsuccessful. Identify the short-range wireless communication technology used by the organization in this scenario.
- A. Bluetooth
- B. Li-Fi
- C. RFID
- D. Wi Fi
正解：C
解説：
RFID (Radio Frequency Identification) is a short-range wireless communication technology that uses radio waves to identify and track objects. RFID tags are attached to objects and RFID readers scan the tags to obtain the information stored in them. RFID is commonly used for access control, inventory management, and identification3. Reference: What is RFID?
質問 # 59
Kasen, a cybersecurity specialist at an organization, was working with the business continuity and disaster recovery team. The team initiated various business continuity and discovery activities in the organization. In this process, Kasen established a program to restore both the disaster site and the damaged materials to the pre-disaster levels during an incident.
Which of the following business continuity and disaster recovery activities did Kasen perform in the above scenario?
- A. Response
- B. Recovery
- C. Prevention
- D. Resumption
正解：B
質問 # 60
A threat intelligence feed data file has been acquired and stored in the Documents folder of Attacker Machine-1 (File Name: Threatfeed.txt). You are a cybersecurity technician working for an ABC organization. Your organization has assigned you a task to analyze the data and submit a report on the threat landscape. Select the IP address linked with http://securityabc.s21sec.com.
- A. 5.9.110.120
- B. 5.9.200.150
- C. 5.9.188.148
- D. 5.9.200.200
正解：C
質問 # 61
Nancy, a security specialist, was instructed to identify issues related to unexpected shutdown and restarts on a Linux machine. To identify the incident cause, Nancy navigated to a directory on the Linux system and accessed a log file to troubleshoot problems related to improper shutdowns and unplanned restarts.
Identify the Linux log file accessed by Nancy in the above scenario.
- A. /var/log/lighttpd/
- B. /var/log/secure
- C. /var/log/boot.log
- D. /var/log/kern.log
正解：C
質問 # 62
Kevin, a professional hacker, wants to penetrate CyberTech Inc.'s network. He employed a technique, using which he encoded packets with Unicode characters. The company's IDS cannot recognize the packet, but the target web server can decode them.
What is the technique used by Kevin to evade the IDS system?
- A. Urgency flag
- B. Desynchronization
- C. Session splicing
- D. Obfuscating
正解：D
質問 # 63
Charlie, a security professional in an organization, noticed unauthorized access and eavesdropping on the WLAN. To thwart such attempts, Charlie employed an encryption mechanism that used the RC4 algorithm to encrypt information in the data link layer. Identify the type of wireless encryption employed by Charlie in the above scenario.
- A. WEP
- B. AES
- C. TKIP
- D. CCMP
正解：A
解説：
WEP is the type of wireless encryption employed by Charlie in the above scenario. Wireless encryption is a technique that involves encoding or scrambling the data transmitted over a wireless network to prevent unauthorized access or interception. Wireless encryption can use various algorithms or protocols to encrypt and decrypt the data, such as WEP, WPA, WPA2, etc. WEP (Wired Equivalent Privacy) is a type of wireless encryption that uses the RC4 algorithm to encrypt information in the data link layer . WEP can be used to provide basic security and privacy for wireless networks, but it can also be easily cracked or compromised by various attacks . In the scenario, Charlie, a security professional in an organization, noticed unauthorized access and eavesdropping on the WLAN (Wireless Local Area Network). To thwart such attempts, Charlie employed an encryption mechanism that used the RC4 algorithm to encrypt information in the data link layer. This means that he employed WEP for this purpose. TKIP (Temporal Key Integrity Protocol) is a type of wireless encryption that uses the RC4 algorithm to encrypt information in the data link layer with dynamic keys . TKIP can be used to provide enhanced security and compatibility for wireless networks, but it can also be vulnerable to certain attacks . AES (Advanced Encryption Standard) is a type of wireless encryption that uses the Rijndael algorithm to encrypt information in the data link layer with fixed keys . AES can be used to provide strong security and performance for wireless networks, but it can also require more processing power and resources . CCMP (Counter Mode with Cipher Block Chaining Message Authentication Code Protocol) is a type of wireless encryption that uses the AES algorithm to encrypt information in the data link layer with dynamic keys . CCMP can be used to provide robust security and reliability for wireless networks, but it can also require more processing power and resources
質問 # 64
An MNC hired Brandon, a network defender, to establish secured VPN communication between the company's remote offices. For this purpose, Brandon employed a VPN topology where all the remote offices communicate with the corporate office but communication between the remote offices is denied.
Identify the VPN topology employed by Brandon in the above scenario.
- A. Hub-and-Spoke VPN topology
- B. Point-to-Point VPN topology
- C. Star topology
- D. Full-mesh VPN topology
正解：A
解説：
A hub-and-spoke VPN topology is a type of VPN topology where all the remote offices communicate with the corporate office, but communication between the remote offices is denied. The corporate office acts as the hub, and the remote offices act as the spokes. This topology reduces the number of VPN tunnels required and simplifies the management of VPN policies. A point-to-point VPN topology is a type of VPN topology where two endpoints establish a direct VPN connection. A star topology is a type of VPN topology where one endpoint acts as the central node and connects to multiple other endpoints. A full-mesh VPN topology is a type of VPN topology where every endpoint connects to every other endpoint.
質問 # 65
Hayes, a security professional, was tasked with the implementation of security controls for an industrial network at the Purdue level 3.5 (IDMZ). Hayes verified all the possible attack vectors on the IDMZ level and deployed a security control that fortifies the IDMZ against cyber-attacks.
Identify the security control implemented by Hayes in the above scenario.
- A. MAC authentication
- B. Point-to-po int communication
- C. Anti-DoS solution
- D. Use of authorized RTU and PLC commands
正解：D
解説：
The use of authorized RTU and PLC commands is the security control implemented by Hayes in the above scenario. RTU (Remote Terminal Unit) and PLC (Programmable Logic Controller) are devices that control and monitor industrial processes, such as power generation, water treatment, oil and gas production, etc. RTU and PLC commands are instructions that are sent from a master station to a slave station to perform certain actions or request certain data. The use of authorized RTU and PLC commands is a security control that fortifies the IDMZ (Industrial Demilitarized Zone) against cyber-attacks by ensuring that only valid and authenticated commands are executed by the RTU and PLC devices. Point-to-point communication is a communication method that establishes a direct connection between two endpoints. MAC authentication is an authentication method that verifies the MAC (Media Access Control) address of a device before granting access to a network. Anti-DoS solution is a security solution that protects a network from DoS (Denial-of-Service) attacks by filtering or blocking malicious traffic.
質問 # 66
Tenda, a network specialist at an organization, was examining logged data using Windows Event Viewer to identify attempted or successful unauthorized activities. The logs analyzed by Tenda include events related to Windows security; specifically, log-on/log-off activities, resource access, and also information based on Windows system's audit policies.
Identify the type of event logs analyzed by Tenda in the above scenario.
- A. Application event log
- B. Security event log
- C. System event log
- D. Setup event log
正解：B
質問 # 67
An organization hired a network operations center (NOC) team to protect its IT infrastructure from external attacks. The organization utilized a type of threat intelligence to protect its resources from evolving threats. The threat intelligence helped the NOC team understand how attackers are expected to perform an attack on the organization, identify the information leakage, and determine the attack goals as well as attack vectors.
Identify the type of threat intelligence consumed by the organization in the above scenario.
- A. Tactical threat intelligence
- B. Strategic threat intelligence
- C. Technical threat intelligence
- D. Operational threat intelligence
正解：C
解説：
Technical threat intelligence is a type of threat intelligence that provides information about the technical details of specific attacks, such as indicators of compromise (IOCs), malware signatures, attack vectors, and vulnerabilities. Technical threat intelligence helps the NOC team understand how attackers are expected to perform an attack on the organization, identify the information leakage, and determine the attack goals as well as attack vectors. Technical threat intelligence is often consumed by security analysts, incident responders, and penetration testers who need to analyze and respond to active or potential threats.
質問 # 68
A software company has implemented a wireless technology to track the employees' attendance by recording their in and out timings. Each employee in the company will have an entry card that is embedded with a tag. Whenever an employee enters the office premises, he/she is required to swipe the card at the entrance. The wireless technology uses radio-frequency electromagnetic waves to transfer data for automatic identification and for tracking tags attached to objects.
Which of the following technologies has the software company implemented in the above scenario?
- A. WiMAX
- B. Bluetooth
- C. Wi-Fi
- D. RFID
正解：D
質問 # 69
A software team at an MNC was involved in a project aimed at developing software that could detect the oxygen levels of a person without physical contact, a helpful solution for pandemic situations. For this purpose, the team used a wireless technology that could digitally transfer data between two devices within a short range of up to 5 m and only worked in the absence of physical blockage or obstacle between the two devices, identify the technology employed by the software team in the above scenario.
- A. Infrared
- B. USB
- C. CPS
- D. Satcom
正解：A
解説：
Explanation of Correct answer: Infrared is a wireless technology that can digitally
質問 # 70
Finley, a security professional at an organization, was tasked with monitoring the organizational network behavior through the SIEM dashboard. While monitoring, Finley noticed suspicious activities in the network; thus, he captured and analyzed a single network packet to determine whether the signature included malicious patterns. Identify the attack signature analysis technique employed by Finley in this scenario.
- A. Composite signature-based analysis
- B. Context-based signature analysis
- C. Atomic-signature-based analysis
- D. Content-based signature analysis
正解：D
解説：
Content-based signature analysis is the attack signature analysis technique employed by Finley in this scenario. Content-based signature analysis is a technique that captures and analyzes a single network packet to determine whether the signature included malicious patterns. Content-based signature analysis can be used to detect known attacks, such as buffer overflows, SQL injections, or cross-site scripting2.
質問 # 71
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Eccouncil 212-82（認定サイバーセキュリティ技術者）認定試験は、サイバーセキュリティの分野で知識とスキルを実証したい個人向けに設計されています。この認定は、キャリアを進め、サイバーセキュリティの専門知識を証明したい技術者、ネットワーク管理者、およびその他のIT専門家に最適です。この試験では、ネットワークセキュリティ、インシデント対応、マルウェア分析、脆弱性評価など、幅広いトピックをカバーしています。
Eccouncil 212-82認定試験は、ネットワークセキュリティ、脅威インテリジェンス、インシデント対応、脆弱性管理など、サイバーセキュリティに関連するさまざまな分野を対象としています。この試験は、サイバーセキュリティのキャリアを追求したい、またはすでに分野で働いており、スキルと知識を検証したい個人を対象としています。認定試験は、ポートフォリオにサイバーセキュリティスキルを追加したいIT専門家にも適しています。
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