Free CPEH-001 Exam Braindumps
Certified Professional Ethical Hacker (CPEH) Exam Questions 286–290 (page: 59)

Updated On: 9-Feb-2026

During a penetration test, the tester conducts an ACK scan using NMAP against the external interface of the DMZ firewall. NMAP reports that port 80 is unfiltered. Based on this response, which type of packet inspection is the firewall conducting?

  1. Host
  2. Stateful
  3. Stateless
  4. Application

Answer(s): C



What is the main reason the use of a stored biometric is vulnerable to an attack?

  1. The digital representation of the biometric might not be unique, even if the physical characteristic is unique.
  2. Authentication using a stored biometric compares a copy to a copy instead of the original to a copy.
  3. A stored biometric is no longer "something you are" and instead becomes "something you have".
  4. A stored biometric can be stolen and used by an attacker to impersonate the individual identified by the biometric.

Answer(s): D



Which of the following types of firewall inspects only header information in network traffic?

  1. Packet filter
  2. Stateful inspection
  3. Circuit-level gateway
  4. Application-level gateway

Answer(s): A



An attacker sniffs encrypted traffic from the network and is subsequently able to decrypt it. The attacker can now use which cryptanalytic technique to attempt to discover the encryption key?

  1. Birthday attack
  2. Plaintext attack
  3. Meet in the middle attack
  4. Chosen ciphertext attack

Answer(s): D



Low humidity in a data center can cause which of the following problems?

  1. Heat
  2. Corrosion
  3. Static electricity
  4. Airborne contamination

Answer(s): C



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