Study tips 312-50v6

To scan a host downstream from a security gateway, Firewalking:

Which of the following is not an effective countermeasure against replay attacks?

You may be able to identify the IP addresses and machine names for the firewall, and the names of internal mail servers by:

What type of attack changes its signature and/or payload to avoid detection by antivirus programs?

what would you infer?

what should you do?

What is a sheepdip?

Why is this happening ?

Which of the following IP addresses will respond to the ping and hence will likely be responsible for the the intrusion ?

What do you think is the main reason behind the significant increase in hacking attempts over the past years?