EC-COUNCIL Certified Ethical Hacker 312-50V7 Questions & Answers

• Question 481:

  Neil is a network administrator working in Istanbul. Neil wants to setup a protocol analyzer on his network that will receive a copy of every packet that passes through the main office switch. What type of port will Neil need to setup in order to accomplish this?

  A. Neil will have to configure a Bridged port that will copy all packets to the protocol analyzer.

  B. Neil will need to setup SPAN port that will copy all network traffic to the protocol analyzer.

  C. He will have to setup an Ether channel port to get a copy of all network traffic to the analyzer.

  D. He should setup a MODS port which will copy all network traffic.

  Correct Answer: B

• Question 482:

  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 483:

  What type of port scan is shown below?

  

  A. Idle Scan

  B. FIN Scan

  C. XMAS Scan

  D. Windows Scan

  Correct Answer: B

• Question 484:

  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 485:

  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 be included, 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 486:

  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 487:

  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 488:

  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 489:

  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 490:

  

  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