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Q11. You are performing a port scan with nmap. You are in hurry and conducting the scans at the fastest possible speed. However, you don't want to sacrifice reliability for speed. If stealth is not an issue, what type of scan should you run to get very reliable results?
A. XMAS scan
B. Stealth scan
C. Connect scan
D. Fragmented packet scan
Answer: C
Explanation: A TCP Connect scan, named after the Unix connect() system call is the most accurate scanning method. If a port is open the operating system completes the TCP three-way handshake, and the port scanner immediately closes the connection.
Q12. An attacker runs netcat tool to transfer a secret file between two hosts.
Machine A: netcat -l -p 1234 < secretfile
Machine B: netcat 192.168.3.4 > 1234
He is worried about information being sniffed on the network. How would the attacker use netcat to encrypt the information before transmitting onto the wire?
A. Machine A: netcat -l -p -s password 1234 < testfileMachine B: netcat <machine A IP> 1234
B. Machine A: netcat -l -e magickey -p 1234 < testfileMachine B: netcat <machine A IP> 1234
C. Machine A: netcat -l -p 1234 < testfile -pw passwordMachine B: netcat <machine A IP> 1234 -pw password
D. Use cryptcat instead of netcat
Answer: D
Explanation: Netcat cannot encrypt the file transfer itself but would need to use a third party application to encrypt/decrypt like openssl. Cryptcat is the standard netcat enhanced with twofish encryption.
Q13. ____________ will let you assume a users identity at a dynamically generated web page or site.
A. SQL attack
B. Injection attack
C. Cross site scripting
D. The shell attack
E. Winzapper
Answer: C
Explanation: Cross site scripting is also referred to as XSS or CSS. You must know the user is online and you must scam that user into clicking on a link that you have sent in order for this hack attack to work.
Q14. You want to know whether a packet filter is in front of 192.168.1.10. Pings to 192.168.1.10 don't get answered. A basic nmap scan of 192.168.1.10 seems to hang without returning any information. What should you do next?
A. Use NetScan Tools Pro to conduct the scan
B. Run nmap XMAS scan against 192.168.1.10
C. Run NULL TCP hping2 against 192.168.1.10
D. The firewall is blocking all the scans to 192.168.1.10
Answer: C
Q15. Assuring two systems that are using IPSec to protect traffic over the internet, what type of general attack could compromise the data?
A. Spoof Attack
B. Smurf Attack
C. Man in the Middle Attack
D. Trojan Horse Attack
E. Back Orifice Attack
Answer: DE
Explanation: To compromise the data, the attack would need to be executed before the encryption takes place at either end of the tunnel. Trojan Horse and Back Orifice attacks both allow for potential data manipulation on host computers. In both cases, the data would be compromised either before encryption or after decryption, so IPsec is not preventing the attack.
Improve ec0-350 sample question:
Q16. Jack Hackers wants to break into Brown’s Computers and obtain their secret double fudge cookie recipe. Jack calls Jane, an accountant at Brown Co. pretending to be an administrator from Brown Co. Jack tell Jane that there has been a problem with some accounts and asks her to verify her password with him “just to double check our records”. Jane does not suspect anything amiss and parts her password. Jack can now access Brown Co.’s computer with a valid username and password to steal the cookie recipe. What kind of attack is being illustrated here?
A. Faking Identity
B. Spoofing Identity
C. Social Engineering
D. Reverse Psychology
E. Reverse Engineering
Answer: C
Explanation: Social engineering is a collection of techniques used to manipulate people into performing actions or divulging confidential information. While similar to a confidence trick or simple fraud, the term typically applies to trickery for information gathering or computer system access and in most cases the attacker never comes face-to-face with the victim.
Q17. Exhibit:
What type of attack is shown in the above diagram?
A. SSL Spoofing Attack
B. Identity Stealing Attack
C. Session Hijacking Attack
D. Man-in-the-Middle (MiTM) Attack
Answer: D
Explanation: A man-in-the-middle attack (MITM) is an attack in which an attacker is able to read, insert and modify at will, messages between two parties without either party knowing that the link between them has been compromised.
Q18. ou are footprinting Acme.com to gather competitive intelligence. You visit the acme.com websire for contact information and telephone number numbers but do not find it listed there. You know that they had the entire staff directory listed on their website 12 months ago but now it is not there. How would it be possible for you to retrieve information from the website that is outdated?
A. Visit google search engine and view the cached copy.
B. Visit Archive.org site to retrieve the Internet archive of the acme website.
C. Crawl the entire website and store them into your computer.
D. Visit the company’s partners and customers website for this information.
Answer: B
Explanation: The Internet Archive (IA) is a non-profit organization dedicated to maintaining an archive of Web and multimedia resources. Located at the Presidio in San Francisco, California, this archive includes "snapshots of the World Wide Web" (archived copies of pages, taken at various points in time), software, movies, books, and audio recordings (including recordings of live concerts from bands that allow it). This site is found at www.archive.org.
Q19. You are footprinting an organization to gather competitive intelligence. You visit the company’s website for contact information and telephone numbers but do not find it listed there. You know that they had the entire staff directory listed on their website 12 months ago but not it is not there.
How would it be possible for you to retrieve information from the website that is outdated?
A. Visit google’s search engine and view the cached copy.
B. Visit Archive.org web site to retrieve the Internet archive of the company’s website.
C. Crawl the entire website and store them into your computer.
D. Visit the company’s partners and customers website for this information.
Answer: B
Explanation:
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
Q20. Sandra is the security administrator of ABC.com. One day she notices that the ABC.com Oracle database server has been compromised and customer information along with financial data has been stolen. The financial loss will be estimated in millions of dollars if the database gets into the hands of competitors. Sandra wants to report this crime to the law enforcement agencies immediately.
Which organization coordinates computer crime investigations throughout the United States?
A. NDCA
B. NICP
C. CIRP
D. NPC
E. CIA
Answer: D