312-50 Exam - Ethical Hacking and Countermeasures (CEHv6)

certleader.com

Q1. Exhibit: 

Given the following extract from the snort log on a honeypot, what do you infer from the attack? 

A. A new port was opened 

B. A new user id was created 

C. The exploit was successful 

D. The exploit was not successful 

Answer: D

Explanation: The attacker submits a PASS to the honeypot and receives a login incorrect before disconnecting. 

Q2. Which of the following attacks takes best advantage of an existing authenticated connection 

A. Spoofing 

B. Session Hijacking 

C. Password Sniffing 

D. Password Guessing 

Answer: 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. 

Q3. Password cracking programs reverse the hashing process to recover passwords.(True/False. 

A. True 

B. False 

Answer: B

Explanation: Password cracking programs do not reverse the hashing process. Hashing is a one-way process. What these programs can do is to encrypt words, phrases, and characters using the same encryption process and compare them to the original password. A hashed match reveals the true password. 

Q4. Keystroke logging is the action of tracking (or logging) the keys struck on a keyboard, typically in a covert manner so that the person using the keyboard is unaware that their actions are being monitored. 

How will you defend against hardware keyloggers when using public computers and Internet Kiosks? (Select 4 answers) 

A. Alternate between typing the login credentials and typing characters somewhere else in the focus window 

B. Type a wrong password first, later type the correct password on the login page defeating the keylogger recording 

C. Type a password beginning with the last letter and then using the mouse to move the cursor for each subsequent letter. 

D. The next key typed replaces selected text portion. E.g. if the password is "secret", one could type "s", then some dummy keys "asdfsd". 

Then these dummies could be selected with mouse, and next character from the password "e" is typed, which replaces the dummies "asdfsd" 

E. The next key typed replaces selected text portion. E.g. if the password is "secret", one could type "s", then some dummy keys "asdfsd". Then these dummies could be selected with mouse, and next character from the password "e" is typed, which replaces the dummies "asdfsd" 

Answer: ACDE 

Q5. Blane is a security analyst for a law firm. One of the lawyers needs to send out an email to a client but he wants to know if the email is forwarded on to any other recipients. The client is explicitly asked not to re-send the email since that would be a violation of the lawyer's and client's agreement for this particular case. What can Blane use to accomplish this? 

A. He can use a split-DNS service to ensure the email is not forwarded on. 

B. A service such as HTTrack would accomplish this. 

C. Blane could use MetaGoofil tracking tool. 

D. Blane can use a service such as ReadNotify tracking tool. 

Answer: D

Q6. What is a sniffing performed on a switched network called? 

A. Spoofed sniffing 

B. Passive sniffing 

C. Direct sniffing 

D. Active sniffing 

Answer: D

Q7. SSL has been seen as the solution to several common security problems. Administrators will often make use of SSL to encrypt communication from point A to point B. Why do you think this could be a bad idea if there is an Intrusion Detection System deployed to monitor the traffic between point A and B? 

A. SSL is redundant if you already have IDS in place. 

B. SSL will trigger rules at regular interval and force the administrator to turn them off. 

C. SSL will slow down the IDS while it is breaking the encryption to see the packet content. 

D. SSL will mask the content of the packet and Intrusion Detection System will be blinded. 

Answer: D

Explanation: Because the traffic is encrypted, an IDS cannot understand it or evaluate the payload. 

Q8. Which of the following nmap command in Linux procedures the above output? 

A. sudo nmap –sP 192.168.0.1/24 

B. root nmap –sA 192.168.0.1/24 

C. run nmap –TX 192.168.0.1/24 

D. launch nmap –PP 192.168.0.1/24 

Answer: A

Explanation: This is an output from a ping scan. The option –sP will give you a ping scan of the 192.168.0.1/24 network. 

Topic 4, Enumeration 

129. Sandra has been actively scanning the client network on which she is doing a vulnerability assessment test. While conducting a port scan she notices open ports in the range of 135 to 139. What protocol is most likely to be listening on those ports? 

A. Finger 

B. FTP 

C. Samba 

D. SMB 

Q9. What is Hunt used for? 

A. Hunt is used to footprint networks 

B. Hunt is used to sniff traffic 

C. Hunt is used to hack web servers 

D. Hunt is used to intercept traffic i.e. man-in-the-middle traffic 

E. Hunt is used for password cracking 

Answer: D

Explanation: Hunt can be used to intercept traffic. It is useful with telnet, ftp, and others to grab traffic between two computers or to hijack sessions. 

Q10. Which of the following wireless technologies can be detected by NetStumbler? (Select all that apply) 

A. 802.11b 

B. 802.11e 

C. 802.11a 

D. 802.11g 

E. 802.11 

Answer: ACD

Explanation: If you check the website, cards for all three (A, B, G) are supported. See: http://www.stumbler.net/