EC-COUNCIL 312-50V8 Online Practice Questions and Exam Preparation

EC-COUNCIL 312-50V8 Online Questions & Answers

• Question 881:

  A technician is resolving an issue where a computer is unable to connect to the Internet using a wireless access point. The computer is able to transfer files locally to other machines, but cannot successfully reach the Internet. When the technician examines the IP address and default gateway they are both on the 192.168.1.0/24.

  Which of the following has occurred?

  A. The gateway is not routing to a public IP address.
  B. The computer is using an invalid IP address.
  C. The gateway and the computer are not on the same network.
  D. The computer is not using a private IP address.
  A. The gateway is not routing to a public IP address.

• Question 882:

  The FIN flag is set and sent from host A to host B when host A has no more data to transmit (Closing a TCP connection). This flag releases the connection resources.

  However, host A can continue to receive data as long as the SYN sequence numbers of transmitted packets from host B are lower than the packet segment containing the set FIN flag.

  A. false
  B. true
  B. true

• Question 883:

  A certified ethical hacker (CEH) completed a penetration test of the main headquarters of a company almost two months ago, but has yet to get paid. The customer is suffering from financial problems, and the CEH is worried that the company will go out of business and end up not paying.

  What actions should the CEH take?

  A. Threaten to publish the penetration test results if not paid.
  B. Follow proper legal procedures against the company to request payment.
  C. Tell other customers of the financial problems with payments from this company.
  D. Exploit some of the vulnerabilities found on the company webserver to deface it.
  B. Follow proper legal procedures against the company to request payment.

• Question 884:

  Which type of antenna is used in wireless communication?

  A. Omnidirectional
  B. Parabolic
  C. Uni-directional
  D. Bi-directional
  A. Omnidirectional

• Question 885:

  It isan entity or event with the potential to adversely impact a system through unauthorized access destruction disclosures denial of service or modification of data. Which of the following terms best matches this definition?

  A. Threat
  B. Attack
  C. Risk
  D. Vulnerability
  A. Threat

• Question 886:

  You are programming a buffer overflow exploit and you want to create a NOP sled of 200 bytes in the program exploit.c

  

  What is the hexadecimal value of NOP instruction?

  A. 0x60 B. 0x80
  C. 0x70
  D. 0x90
  D. 0x90

• Question 887:

  Which of the following Nmap commands would be used to perform a stack fingerprinting?

  A. Nmap -O -p80
  B. Nmap -hU -Q
  C. Nmap -sT -p
  D. Nmap -u -o -w2
  E. Nmap -sS -0p target
  A. Nmap -O -p80

• Question 888:

  Which of the following tools are used for footprinting? (Choose four)

  A. Sam Spade
  B. NSLookup
  C. Traceroute
  D. Neotrace
  E. Cheops
  A. Sam Spade
  B. NSLookup
  C. Traceroute
  D. Neotrace

• Question 889:

  You are the security administrator of Jaco Banking Systems located in Boston. You are setting up e-banking website (http://www.ejacobank.com) authentication system. Instead of issuing banking customer with a single password, you give them a printed list of 100 unique passwords. Each time the customer needs to log into the e-banking system website, the customer enters the next password on the list. If someone sees them type the password using shoulder surfing, MiTM or keyloggers, then no damage is done because the password will not be accepted a second time. Once the list of 100 passwords is almost finished, the system automatically sends out a new password list by encrypted e-mail to the customer.

  You are confident that this security implementation will protect the customer from password abuse.

  Two months later, a group of hackers called "HackJihad" found a way to access the one-time password list issued to customers of Jaco Banking Systems. The hackers set up a fake website (http://www.e-jacobank.com) and used phishing attacks to direct ignorant customers to it. The fake website asked users for their e- banking username and password, and the next unused entry from their one-time password sheet. The hackers collected 200 customer's username/passwords this way. They transferred money from the customer's bank account to various offshore accounts.

  Your decision of password policy implementation has cost the bank with USD 925, 000 to hackers. You immediately shut down the e-banking website while figuring out the next best security solution.

  What effective security solution will you recommend in this case?

  A. Implement Biometrics based password authentication system. Record the customers face image to the authentication database
  B. Configure your firewall to block logon attempts of more than three wrong tries
  C. Enable a complex password policy of 20 characters and ask the user to change the password immediately after they logon and do not store password histories
  D. Implement RSA SecureID based authentication system
  D. Implement RSA SecureID based authentication system

• Question 890:

  RC4 is known to be a good stream generator. RC4 is used within the WEP standard on wireless LAN. WEP is known to be insecure even if we are using a stream cipher that is known to be secured. What is the most likely cause behind this?

  A. There are some flaws in the implementation.
  B. There is no key management.
  C. The IV range is too small.
  D. All of the above.
  E. None of the above.
  D. All of the above.