Free 312-50v12 Exam Braindumps
Certified Ethical Hacker V12 Questions 216–220 (page: 45)

Updated On: 10-Feb-2026

Bob, your senior colleague, has sent you a mail regarding a deal with one of the clients. You are requested to accept the offer and you oblige. After 2 days. Bob denies that he had ever sent a mail. What do you want to ""know"" to prove yourself that it was Bob who had send a mail?

  1. Authentication
  2. Confidentiality
  3. Integrity
  4. Non-Repudiation

Answer(s): D



In the field of cryptanalysis, what is meant by a “rubber-hose" attack?

  1. Attempting to decrypt cipher text by making logical assumptions about the contents of the original plain text.
  2. Extraction of cryptographic secrets through coercion or torture.
  3. Forcing the targeted key stream through a hardware-accelerated device such as an ASI
  4. A backdoor placed into a cryptographic algorithm by its creator.

Answer(s): B



What type of analysis is performed when an attacker has partial knowledge of inner-workings of the application?

  1. Black-box
  2. Announced
  3. White-box
  4. Grey-box

Answer(s): D



Which of the following steps for risk assessment methodology refers to vulnerability identification?

  1. Determines if any flaws exist in systems, policies, or procedures
  2. Assigns values to risk probabilities; Impact values.
  3. Determines risk probability that vulnerability will be exploited (High. Medium, Low)
  4. Identifies sources of harm to an IT system. (Natural, Human. Environmental)

Answer(s): C



Log monitoring tools performing behavioral analysis have alerted several suspicious logins on a Linux server occurring during non-business hours. After further examination of all login activities, it is noticed that none of the logins have occurred during typical work hours. A Linux administrator who is investigating this problem realizes the system time on the Linux server is wrong by more than twelve hours. What protocol used on Linux servers to synchronize the time has stopped working?

  1. Time Keeper
  2. NTP
  3. PPP
  4. OSPP

Answer(s): B



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