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Ethical Hacker Certified Questions 271–275 (page: 56)

Updated On: 10-Feb-2026

Steven is a senior security analyst for a state agency in Tulsa, OklahomA. His agency is currently undergoing a mandated security audit by an outside consulting firm. The consulting firm is halfway through the audit and is preparing to perform the actual penetration testing against the agency’s network. The firm first sets up a sniffer on the agency’s wired network to capture a reasonable amount of traffic to analyze later. This takes approximately 2 hours to obtain 10 GB of datA. The consulting firm then sets up a sniffer on the agency’s wireless network to capture the same amount of traffic. This capture only takes about 30 minutes to get 10 GB of data.
Why did capturing of traffic take much less time on the wireless network?

  1. Because wireless access points act like hubs on a network
  2. Because all traffic is clear text, even when encrypted
  3. Because wireless traffic uses only UDP which is easier to sniff
  4. Because wireless networks can’t enable encryption

Answer(s): A

Explanation:

You cannot have directed radio transfers over a WLAN. Every packet will be broadcasted as far as possible with no concerns about who might hear it.



Bob is conducting a password assessment for one of his clients. Bob suspects that password policies are not in place and weak passwords are probably the norm throughout the company he is evaluating. Bob is familiar with password weakness and key loggers. What are the means that Bob can use to get password from his client hosts and servers?

  1. Hardware, Software and Sniffing
  2. Hardware and Software Keyloggers
  3. Software only, they are the most effective
  4. Passwords are always best obtained using Hardware key loggers

Answer(s): A

Explanation:

All loggers will work as long as he has physical access to the computers.



The evil hacker, is purposely sending fragmented ICMP packets to a remote target. The total size of this ICMP packet once reconstructed is over 65, 536 bytes. From the information given, what type of attack is attempting to perform?

  1. Syn flood
  2. Smurf
  3. Ping of death
  4. Fraggle

Answer(s): C


Reference:

http://insecure.org/sploits/ping-o-death.html



Which one of the following instigates a SYN flood attack?

  1. Generating excessive broadcast packets.
  2. Creating a high number of half-open connections.
  3. Inserting repetitive Internet Relay Chat (IRC) messages.
  4. A large number of Internet Control Message Protocol (ICMP) traces.

Answer(s): B

Explanation:

A SYN attack occurs when an attacker exploits the use of the buffer space during a Transmission Control Protocol (TCP) session initialization handshake. The attacker floods the target system's small "in-process" queue with connection requests, but it does not respond when a target system replies to those requests. This causes the target system to time out while waiting for the proper response, which makes the system crash or become unusable.



Global deployment of RFC 2827 would help mitigate what classification of attack?

  1. Sniffing attack
  2. Denial of service attack
  3. Spoofing attack
  4. Reconnaissance attack
  5. Prot Scan attack

Answer(s): C

Explanation:

RFC 2827 - Network Ingress Filtering: Defeating Denial of Service Attacks which employ IP Source Address Spoofing



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