Being a Certified Ethical Hacker (CEH), a company has brought you on board to evaluate the safety measures in place for their network system. The company uses a network time protocol server in the demilitarized zone.
During your enumeration, you decide to run a ntptrace command. Given the syntax: ntptrace [-n] [-m maxhosts] [servername/IP_address], which command usage would best serve your objective to find where the NTP server obtains the time from and to trace the list of NTP servers connected to the network?
In a large organization, a network security analyst discovered a series of packet captures that seem unusual.
The network operates on a switched Ethernet environment. The security team suspects that an attacker might
be using a sniffer tool. Which technique could the attacker be using to successfully carry out this attack,
considering the switched nature of the network?
Your network infrastructure is under a SYN flood attack. The attacker has crafted an automated botnet to
simultaneously send 's' SYN packets per second to the server. You have put measures in place to manage 'f
SYN packets per second, and the system is designed to deal with this number without any performance issues.
If 's' exceeds 'f', the network infrastructure begins to show signs of overload. The system's response time
increases exponentially (24k), where 'k' represents each additional SYN packet above the ff limit. Now, considering 's=500' and different 'f values, in which scenario is the server most likely to experience overload and significantly increased response times?
A well-resourced attacker intends to launch a highly disruptive DDoS attack against a major online retailer. The attacker aims to exhaust all the network resources while keeping their identity concealed. Their method should be resistant to simple defensive measures such as IP-based blocking. Based on these objectives, which of the following attack strategies would be most effective?
You are an ethical hacker contracted to conduct a security audit for a company. During the audit, you discover that the company's wireless network is using WEP encryption. You understand the vulnerabilities associated with WEP and plan to recommend a more secure encryption method. Which of the following would you recommend as a Suitable replacement to enhance the security of the company's wireless network?
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