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

• Question 151:

  Stephanie works as a records clerk in a large office building in downtown Chicago. On Monday, she went to a mandatory security awareness class (Security5) put on by her company's IT department. During the class, the IT department informed all employees that everyone's Internet activity was thenceforth going to be monitored.

  Stephanie is worried that her Internet activity might give her supervisor reason to write her up, or worse get her fired. Stephanie's daily work duties only consume about four hours of her time, so she usually spends the rest of the day surfing the web. Stephanie really enjoys surfing the Internet but definitely does not want to get fired for it.

  What should Stephanie use so that she does not get in trouble for surfing the Internet?

  A. Stealth IE

  B. Stealth Anonymizer

  C. Stealth Firefox

  D. Cookie Disabler

  Correct Answer: B

• Question 152:

  What type of session hijacking attack is shown in the exhibit?

  

  A. Cross-site scripting Attack

  B. SQL Injection Attack

  C. Token sniffing Attack

  D. Session Fixation Attack

  Correct Answer: D

• Question 153:

  The SYN flood attack sends TCP connections requests faster than a machine can process them.

  How do you protect your network against SYN Flood attacks?

  A. SYN cookies. Instead of allocating a record,send a SYN-ACK with a carefully constructed sequence number generated as a hash of the clients IP address,port number,and other information. When the client responds with a normal ACK,that special sequence number will beincluded,which the server then verifies. Thus,the server first allocates memory on the third packet of the handshake,not the first.

  B. RST cookies - The server sends a wrong SYN/ACK back to the client. The client should then generate a RST packet telling the server that something is wrong. At this point,the server knows the client is valid and will now accept incoming connections from that client normally

  C. Check the incoming packet's IP address with the SPAM database on the Internet and enable the filter using ACLs at the Firewall

  D. Stack Tweaking. TCP stacks can be tweaked in order to reduce the effect of SYN floods. Reduce the timeout before a stack frees up the memory allocated for a connection

  E. Micro Blocks. Instead of allocating a complete connection,simply allocate a micro record of 16-bytes for the incoming SYN object

  Correct Answer: ABDE

• Question 154:

  How do you defend against DHCP Starvation attack?

  

  A. Enable ARP-Block on the switch

  B. Enable DHCP snooping on the switch

  C. Configure DHCP-BLOCK to 1 on the switch

  D. Install DHCP filters on the switch to block this attack

  Correct Answer: B

• Question 155:

  How does traceroute map the route a packet travels from point A to point B?

  A. Uses a TCP timestamp packet that will elicit a time exceeded in transit message

  B. Manipulates the value of the time to live (TTL) within packet to elicit a time exceeded in transit message

  C. Uses a protocol that will be rejected by gateways on its way to the destination

  D. Manipulates the flags within packets to force gateways into generating error messages

  Correct Answer: B

• Question 156:

  Vulnerability scanners are automated tools that are used to identify vulnerabilities and misconfigurations of hosts. They also provide information regarding mitigating discovered vulnerabilities.

  

  Which of the following statements is incorrect?

  A. Vulnerability scanners attempt to identify vulnerabilities in the hosts scanned.

  B. Vulnerability scanners can help identify out-of-date software versions,missing patches,or system upgrades

  C. They can validate compliance with or deviations from the organization's security policy

  D. Vulnerability scanners can identify weakness and automatically fix and patch the vulnerabilities without user intervention

  Correct Answer: D

• Question 157:

  

  An attacker finds a web page for a target organization that supplies contact information for the company. Using available details to make the message seem authentic, the attacker drafts e-mail to an employee on the contact page that appears to come from an individual who might reasonably request confidential information, such as a network administrator.

  The email asks the employee to log into a bogus page that requests the employee's user name and password or click on a link that will download spyware or other malicious programming.

  Google's Gmail was hacked using this technique and attackers stole source code and sensitive data from Google servers. This is highly sophisticated attack using zero-day exploit vectors, social engineering and malware websites that focused on targeted individuals working for the company.

  What is this deadly attack called?

  A. Spear phishing attack

  B. Trojan server attack

  C. Javelin attack

  D. Social networking attack

  Correct Answer: A

• Question 158:

  What type of Virus is shown here?

  

  A. Cavity Virus

  B. Macro Virus

  C. Boot Sector Virus

  D. Metamorphic Virus

  E. Sparse Infector Virus

  Correct Answer: E

• Question 159:

  Jason works in the sales and marketing department for a very large advertising agency located in Atlanta. Jason is working on a very important marketing campaign for his company's largest client. Before the project could be completed and implemented, a competing advertising company comes out with the exact same marketing materials and advertising, thus rendering all the work done for Jason's client unusable. Jason is questioned about this and says he has no idea how all the material ended up in the hands of a competitor.

  Without any proof, Jason's company cannot do anything except move on. After working on another high profile client for about a month, all the marketing and sales material again ends up in the hands of another competitor and is released to the public before Jason's company can finish the project. Once again, Jason says that he had nothing to do with it and does not know how this could have happened. Jason is given leave with pay until they can figure out what is going on.

  Jason's supervisor decides to go through his email and finds a number of emails that were sent to the competitors that ended up with the marketing material. The only items in the emails were attached jpg files, but nothing else. Jason's supervisor opens the picture files, but cannot find anything out of the ordinary with them.

  What technique has Jason most likely used?

  A. Stealth Rootkit Technique

  B. ADS Streams Technique

  C. Snow Hiding Technique

  D. Image Steganography Technique

  Correct Answer: D

• Question 160:

  Dan is conducting penetration testing and has found a vulnerability in a Web Application which gave him the sessionID token via a cross site scripting vulnerability. Dan wants to replay this token. However, the session ID manager (on the server) checks the originating IP address as well. Dan decides to spoof his IP address in order to replay the sessionID.

  Why do you think Dan might not be able to get an interactive session?

  A. Dan cannot spoof his IP address over TCP network

  B. The scenario is incorrect as Dan can spoof his IP and get responses

  C. The server will send replies back to the spoofed IP address

  D. Dan can establish an interactive session only if he uses a NAT

  Correct Answer: C