ECCouncil 312-50v13日本語版対策ガイド & 312-50v13資格準備

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312-50v13日本語版対策ガイドを利用する - Certified Ethical Hacker Exam (CEHv13)を取り除く

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ECCouncil Certified Ethical Hacker Exam (CEHv13) 認定 312-50v13 試験問題 (Q316-Q321):

質問 # 316
Joel, a professional hacker, targeted a company and identified the types of websites frequently visited by its employees. Using this information, he searched for possible loopholes in these websites and injected a malicious script that can redirect users from the web page and download malware onto a victim's machine.
Joel waits for the victim to access the infected web application so as to compromise the victim's machine.
Which of the following techniques is used by Joel in the above scenario?

A. Clickjacking attack
B. DNS rebinding attack
C. MarioNet attack
D. Watering hole attack

正解：D

解説：
Web Application Threats - Watering Hole Attack In a watering hole attack, the attacker identifies the kinds of websites a target company/individual frequently surfs and tests those particular websites to identify any possible vulnerabilities. Attacker injects malicious script/code into the web application that can redirect the webpage and download malware onto the victim machine. (P.1797/1781)

質問 # 317
You are a cybersecurlty consultant for a smart city project. The project involves deploying a vast network of loT devices for public utilities like traffic control, water supply, and power grid management The city administration is concerned about the possibility of a Distributed Denial of Service (DDoS) attack crippling these critical services. They have asked you for advice on how to prevent such an attack. What would be your primary recommendation?

A. Implement IP address whitelisting for all loT devices.
B. Establish strong, unique passwords for each loT device.
C. A Deploy network intrusion detection systems (IDS) across the loT network.
D. Implement regular firmware updates for all loT devices.

正解：D

解説：
Implementing regular firmware updates for all IoT devices is the primary recommendation to prevent DDoS attacks on the smart city project. Firmware updates can fix security vulnerabilities, patch bugs, and improve performance of the IoT devices, making them less susceptible to malware infections and botnet recruitment12. Firmware updates can also enable new security features, such as encryption, authentication, and firewall, that can protect the IoT devices from unauthorized access and data theft3. Firmware updates should be done automatically or remotely, without requiring user intervention, to ensure timely and consistent security across the IoT network4.
The other options are not as effective or feasible as firmware updates for the following reasons:
* B. Deploying network intrusion detection systems (IDS) across the IoT network can help detect and alert DDoS attacks, but not prevent them. IDS can monitor network traffic and identify malicious patterns, such as high volume, spoofed IP addresses, or unusual protocols, that indicate a DDoS attack5.
However, IDS cannot block or mitigate the attack, and may even be overwhelmed by the flood of traffic, resulting in false positives or missed alerts. Moreover, deploying IDS across a vast network of IoT devices can be costly, complex, and resource-intensive, as it requires dedicated hardware, software, and personnel.
* C. Establishing strong, unique passwords for each IoT device can prevent unauthorized access and brute-force attacks, but not DDoS attacks. Passwords can protect the IoT devices from being compromised by hackers who try to guess or crack the default or weak credentials. However, passwords cannot prevent DDoS attacks that exploit known or unknown vulnerabilities in the IoT devices, such as buffer overflows, command injections, or protocol flaws. Moreover, establishing and managing strong, unique passwords for each IoT device can be challenging and impractical, as it requires user awareness, memory, and effort.
* D. Implementing IP address whitelisting for all IoT devices can restrict network access and communication to trusted sources, but not DDoS attacks. IP address whitelisting can filter out unwanted or malicious traffic by allowing only the predefined IP addresses to connect to the IoT devices.
However, IP address whitelisting cannot prevent DDoS attacks that use spoofed or legitimate IP addresses, such as reflection or amplification attacks, that bypass the whitelisting rules. Moreover, implementing IP address whitelisting for all IoT devices can be difficult and risky, as it requires constant updating, testing, and monitoring of the whitelist, and may block legitimate or emergency traffic by mistake.
References:
* 1: How to proactively protect IoT devices from DDoS attacks - Synopsys
* 2: IoT and DDoS: Cyberattacks on the Rise | A10 Networks
* 3: Detection and Prevention of DDoS Attacks on the IoT - MDPI
* 4: How to Secure IoT Devices: 5 Best Practices | IoT For All
* 5: Intrusion Detection Systems (IDS) Part 1 - Network Security | Coursera
* : DDoS Attacks: Detection and Mitigation - Cisco
* : The Challenges of IoT Security - Infosec Resources
* : IoT Security: How to Protect Connected Devices and the IoT Ecosystem | Kaspersky
* : IoT Security: Common Vulnerabilities and Attacks | IoT For All
* : The Password Problem: How to Use Passwords Effectively in 2021 | Dashlane Blog
* : What is IP Whitelisting? | Cloudflare
* : DDoS Attacks: Types, Techniques, and Protection | Cloudflare
* : IP Whitelisting: Pros and Cons | Imperva

質問 # 318
What piece of hardware on a computer's motherboard generates encryption keys and only releases a part of the key so that decrypting a disk on a new piece of hardware is not possible?

A. CPU
B. TPM
C. GPU
D. UEFI

正解：B

解説：
The TPM is a chip that's part of your computer's motherboard - if you bought an off-the-shelf PC, it's soldered onto the motherboard. If you built your own computer, you can buy one as an add-on module if your motherboard supports it. The TPM generates encryption keys, keeping part of the key to itself

質問 # 319
What information security law or standard aims at protecting stakeholders and the general public from accounting errors and fraudulent activities within organizations?

A. ISO/I EC 27001:2013
B. FISMA
C. SOX
D. PCI-DSS

正解：C

質問 # 320
You have successfully logged on a Linux system. You want to now cover your trade Your login attempt may be logged on several files located in /var/log. Which file does NOT belongs to the list:

A. btmp
B. auth.fesg
C. user.log
D. wtmp

正解：D

質問 # 321
......

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中納言は初めからまじめ一方な方でございますから、今までも初恋のあの奥様のことばかりを思いつめて、失恋時代にもほかの話に耳をかさなかった人でございました、これが日本語での経営移動です、まず、312-50v13準備ガイドのPDFバージョンを紙に印刷できます。

ユニーク312-50v13｜最新の312-50v13日本語版対策ガイド試験｜試験の準備方法Certified Ethical Hacker Exam (CEHv13)資格準備

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