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Ethical Hacking and Countermeasures Question 9 (page: 40)

Updated On: 10-Feb-2026

Which of the following attacks takes best advantage of an existing authenticated connection

  1. Spoofing
  2. Session Hijacking
  3. Password Sniffing
  4. Password Guessing

Answer(s): B

Explanation:

Session hijacking is the act of taking control of a user session after successfully obtaining or generating an authentication session ID. Session hijacking involves an attacker using captured, brute forced or reverse-engineered session IDs to seize control of a legitimate user's Web application session while that session is still in progress.



Within the context of Computer Security, which of the following statements best describe Social Engineering?

  1. Social Engineering is the act of publicly disclosing information.
  2. Social Engineering is the act of getting needed information from a person rather than breaking into a system.
  3. Social Engineering is the means put in place by human resource to perform time accounting.
  4. Social Engineering is a training program within sociology studies.

Answer(s): B

Explanation:

Social engineering is a collection of techniques used to manipulate people into performing actions or divulging confidential information.



Bret is a web application administrator and has just read that there are a number of surprisingly common web application vulnerabilities that can be exploited by unsophisticated attackers with easily available tools on the Internet.
He has also read that when an organization deploys a web application, they invite the world to send HTTP requests. Attacks buried in these requests sail past firewalls, filters, platform hardening, SSL, and IDS without notice because they are inside legal HTTP requests. Bret is determined to weed out any vulnerabilities. What are some common vulnerabilities in web applications that he should be concerned about?

  1. Non-validated parameters, broken access control, broken account and session management, cross-side scripting and buffer overflows are just a few common vulnerabilities
  2. No IDS configured, anonymous user account set as default, missing latest security patch, no firewall filters set and visible clear text passwords are just a few common vulnerabilities
  3. Visible clear text passwords, anonymous user account set as default, missing latest security patch, no firewall filters set and no SSL configured are just a few common vulnerabilities
  4. No SSL configured, anonymous user account set as default, missing latest security patch, no firewall filters set and an inattentive system administrator are just a few common vulnerabilities

Answer(s): A



You visit a website to retrieve the listing of a company's staff members. But you can not find it on the website. You know the listing was certainly present one year before. How can you retrieve information from the outdated website?

  1. Through Google searching cached files
  2. Through Archive.org
  3. Download the website and crawl it
  4. Visit customers' and prtners' websites

Answer(s): B

Explanation:

Archive.org mirrors websites and categorizes them by date and month depending on the crawl time. Archive.org dates back to 1996, Google is incorrect because the cache is only as recent as the latest crawl, the cache is over-written on each subsequent crawl. Download the website is incorrect because that's the same as what you see online. Visiting customer partners websites is just bogus. The answer is then Firmly, C, archive.org



In Linux, the three most common commands that hackers usually attempt to Trojan are:

  1. car, xterm, grep
  2. netstat, ps, top
  3. vmware, sed, less
  4. xterm, ps, nc

Answer(s): B

Explanation:

The easiest programs to trojan and the smartest ones to trojan are ones commonly run by administrators and users, in this case netstat, ps, and top, for a complete list of commonly trojaned and rootkited software please reference this URL: http://www.usenix.org/publications/login/1999-9/features/rootkits.html



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