312-50v13テスト模擬問題集、312-50v13模擬解説集

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ECCouncil 312-50v13 Exam Syllabus Topics:

SectionObjectives
Wireless and Mobile Security- Mobile platform vulnerabilities
- Wireless network attacks
Introduction to Ethical Hacking- Ethical hacking concepts and methodology
System Hacking- Malware threats and system exploitation
- Gaining access and privilege escalation
Reconnaissance Techniques- Scanning networks and enumeration
- Footprinting and information gathering
Network Attacks- Denial of Service (DoS/DDoS)
- Sniffing and session hijacking
Cloud and IoT Security- IoT security fundamentals
- Cloud computing security concepts
Web and Application Security- Web application hacking techniques
Cryptography- Encryption, hashing, and cryptanalysis

>> 312-50v13テスト模擬問題集 <<

312-50v13模擬解説集、312-50v13試験復習

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ECCouncil Certified Ethical Hacker Exam (CEH v13 AI) 認定 312-50v13 試験問題 (Q658-Q663):

質問 # 658
In a Layer 2 security review for a logistics firm in Houston, Texas, ethical hacker Zoe Patel simulates traffic on a switched network to evaluate forwarding behavior and potential risks. She sends a frame from one host to another whose destination MAC address is unknown to the switch ' s lookup table and observes how the switch processes it to ensure delivery while learning the network layout.
This results in the frame being disseminated broadly across connected interfaces, excluding the originating interface, allowing the switch to dynamically learn mappings from subsequent traffic.
How does a switch handle a frame when the destination MAC address is not present in the CAM table?

正解：A

解説：
A Layer 2 switch uses its CAM or MAC address table to associate destination MAC addresses with outgoing switch ports. If the destination address is unknown, the frame is classified as an unknown unicast. The switch cannot determine the correct egress interface, so it floods the frame to every appropriate port in the VLAN except the ingress port. When the destination eventually responds, the switch learns that device ' s location from the source MAC address of the returning frame and updates its forwarding table. The switch does not resolve the problem through ARP, does not normally discard the unknown unicast, and spanning-tree root- port selection is unrelated to ordinary MAC forwarding. This behavior is also fundamental to understanding MAC-flooding sniffing attacks covered within CEH network-security material.


質問 # 659
A company ' s security policy states that all Web browsers must automatically delete their HTTP browser cookies upon terminating. What sort of security breach is this policy attempting to mitigate?

正解：B

解説：
Comprehensive and Detailed Explanation From CEH v13 Guide Topics:
The correct answer is A. HTTP cookies often store session identifiers or authentication-related tokens after a user logs in to a website. If these cookies remain on the system after the browser closes, an attacker with access to the device, malware, or stolen browser data may reuse those cookies to impersonate the authenticated user. This is commonly associated with session hijacking, cookie theft, or unauthorized reuse of trusted browser sessions.
Automatically deleting cookies when the browser terminates reduces the chance that an attacker can recover valid session cookies later. Option B relates more to privacy tracking and browsing history analysis, not the main authentication risk. Option C refers to SQL database compromise, which cookie deletion does not directly prevent. Option D refers to locally stored passwords, which are separate from HTTP cookies.
Therefore, the policy is primarily intended to mitigate unauthorized access to trusted websites through stolen authentication/session data.


質問 # 660
Which definition among those given below best describes a covert channel?

正解：D

解説：
A covert channel is a communication method used to transfer information in a way that violates security policy, often by repurposing legitimate protocols or functions for unauthorized communication.
From CEH v13 Official Courseware:
Module 6: Malware Threats
Topic: Covert Communication and Data Exfiltration Techniques
CEH v13 Study Guide states:
"A covert channel exploits unintended uses of legitimate communication protocols. It allows data to be transmitted without detection by hiding the communication inside seemingly benign traffic." Incorrect Options:
A: A non-standard port may aid in hiding services, but doesn't constitute a covert channel.
C: Multiplexing is a normal communication mechanism.
D: WEP is insecure, but this isn't related to covert channels.
Reference:CEH v13 Study Guide - Module 6: Covert Communication ChannelsNIST SP 800-30 - Covert Channels in Security Models
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質問 # 661
What would you enter if you wanted to perform a stealth scan using Nmap?

正解：C


質問 # 662
During log analysis following a simulated security incident, investigators need to establish the exact sequence of events across multiple systems located in different time zones. Which administrative practice MOST improves the reliability of this analysis?

正解：D

解説：
Consistent timestamps are essential for correlating events during forensic investigations and incident response. Synchronizing systems with a trusted time source, such as NTP, helps ensure that logs from different devices can be accurately compared, reducing confusion when reconstructing attack timelines.


質問 # 663
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