Firewalk has just completed the second phase (the scanning phase) and a technician receives the output shown below. What conclusions can be drown based on these scan results?
TCP port 21 - no response
TCP port 22 - no response
TCP port 23 - Time-to-live exceeded

Which of the following network attacks relies on sending an abnormally large packet size that exceeds TCP/IP specifications?

Assume a business-crucial web-site of some company that is used to sell handsets to the customers
worldwide. All the developed components are reviewed by the security team on a monthly basis. In order
to drive business further, the web-site developers decided to add some 3rd party marketing tools on it. The
tools are written in JavaScript and can track the customer's activity on the site. These tools are located on
the servers of the marketing company.
What is the main security risk associated with this scenario?

The "gray box testing" methodology enforces what kind of restriction?

Fingerprinting VPN firewalls is possible with which of the following tools?