EC-COUNCIL EC-COUNCIL Certifications 312-50V8 Questions & Answers

• Question 171:

  TCP SYN Flood attack uses the three-way handshake mechanism.

  1.

  An attacker at system A sends a SYN packet to victim at system B.

  2.

  System B sends a SYN/ACK packet to victim A.

  3.

  As a normal three-way handshake mechanism system A should send an ACK packet to system B, however, system A does not send an ACK packet to system B. In this case client B is waiting for an ACK packet from client A.

  This status of client B is called _________________

  A. "half-closed"

  B. "half open"

  C. "full-open"

  D. "xmas-open"

  Correct Answer: B

• Question 172:

  Lori is a Certified Ethical Hacker as well as a Certified Hacking Forensics Investigator working as an IT security consultant. Lori has been hired on by Kiley Innovators, a large marketing firm that recently underwent a string of thefts and corporate espionage incidents.

  Lori is told that a rival marketing company came out with an exact duplicate product right before Kiley Innovators was about to release it. The executive team believes that an employee is leaking information to the rival company. Lori questions all employees, reviews server logs, and firewall logs; after which she finds nothing. Lori is then given permission to search through the corporate email system. She searches by email being sent to and sent from the rival marketing company.

  She finds one employee that appears to be sending very large email to this other marketing company, even though they should have no reason to be communicating with them. Lori tracks down the actual emails sent and upon opening them, only finds picture files attached to them. These files seem perfectly harmless, usually containing some kind of joke. Lori decides to use some special software to further examine the pictures and finds that each one had hidden text that was stored in each picture.

  What technique was used by the Kiley Innovators employee to send information to the rival marketing company?

  A. The Kiley Innovators employee used cryptography to hide the information in the emails sent

  B. The method used by the employee to hide the information was logical watermarking

  C. The employee used steganography to hide information in the picture attachments

  D. By using the pictures to hide information,the employee utilized picture fuzzing

  Correct Answer: C

• Question 173:

  How do you defend against ARP Spoofing? Select three.

  A. Use ARPWALL system and block ARP spoofing attacks

  B. Tune IDS Sensors to look for large amount of ARP traffic on local subnets

  C. Use private VLANS

  D. Place static ARP entries on servers,workstation and routers

  Correct Answer: ACD

• Question 174:

  Jack Hacker wants to break into Brown Co.'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 tells 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 with her password. Jack can now access Brown Co.'s computers with a valid user name and password, to steal the cookie recipe.

  What kind of attack is being illustrated here?

  A. Reverse Psychology

  B. Reverse Engineering

  C. Social Engineering

  D. Spoofing Identity

  E. Faking Identity

  Correct Answer: C

• Question 175:

  What type of attack is shown in the following diagram?

  

  A. Man-in-the-Middle (MiTM) Attack

  B. Session Hijacking Attack

  C. SSL Spoofing Attack

  D. Identity Stealing Attack

  Correct Answer: A

• Question 176:

  Anonymizer sites access the Internet on your behalf, protecting your personal information from disclosure. An anonymizer protects all of your computer's identifying information while it surfs for you, enabling you to remain at least one step removed from the sites you visit.

  You can visit Web sites without allowing anyone to gather information on sites visited by you. Services that provide anonymity disable pop-up windows and cookies, and conceal visitor's IP address.

  These services typically use a proxy server to process each HTTP request. When the user requests a Web page by clicking a hyperlink or typing a URL into their browser, the service retrieves and displays the information using its own server. The remote server (where the requested Web page resides) receives information on the anonymous Web surfing service in place of your information.

  In which situations would you want to use anonymizer? (Select 3 answers)

  A. Increase your Web browsing bandwidth speed by using Anonymizer

  B. To protect your privacy and Identity on the Internet

  C. To bypass blocking applications that would prevent access to Web sites or parts of sites that you want to visit.

  D. Post negative entries in blogs without revealing your IP identity

  Correct Answer: BCD

• Question 177:

  Joel and her team have been going through tons of garbage, recycled paper, and other rubbish in order to find some information about the target they are attempting to penetrate.

  How would you call this type of activity?

  A. Dumpster Diving

  B. Scanning

  C. CI Gathering

  D. Garbage Scooping

  Correct Answer: A

• Question 178:

  If a competitor wants to cause damage to your organization, steal critical secrets, or put you out of business, they just have to find a job opening, prepare someone to pass the interview, have that person hired, and they will be in the organization.

  

  How would you prevent such type of attacks?

  A. It is impossible to block these attacks

  B. Hire the people through third-party job agencies who will vet them for you

  C. Conduct thorough background checks before you engage them

  D. Investigate their social networking profiles

  Correct Answer: C

• Question 179:

  This type of Port Scanning technique splits TCP header into several packets so that the packet filters are not able to detect what the packets intends to do.

  A. UDP Scanning

  B. IP Fragment Scanning

  C. Inverse TCP flag scanning

  D. ACK flag scanning

  Correct Answer: B

• Question 180:

  This IDS defeating technique works by splitting a datagram (or packet) into multiple fragments and the IDS will not spot the true nature of the fully assembled datagram. The datagram is not reassembled until it reaches its final destination. It would be a processor-intensive task for IDS to reassemble all fragments itself, and on a busy system the packet will slip through the IDS onto the network.

  What is this technique called?

  A. IP Routing or Packet Dropping

  B. IDS Spoofing or Session Assembly

  C. IP Fragmentation or Session Splicing

  D. IP Splicing or Packet Reassembly

  Correct Answer: C