Firewalls

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Across
  1. 1. What attack can firewalls not protect against.
  2. 3. The most secure type of firewall is _______.
  3. 5. Proxy service is also known as _______.
  4. 8. When was the first firewall made.
  5. 9. What firewall operates in the third layer of the OSI model(Network layer).
  6. 10. In 1993 the first _______ firewall was created
Down
  1. 2. Packet filtering is also known as ________
  2. 4. This firewall examines a variety of elements of each data packet such as source and destination IP addresses, ports, applications and compares them to a database of trusted information.
  3. 6. What is the device that you can use to prevent a DDoS attack.
  4. 7. ________ is software or hardware that works as a filtration system for the data attempting to enter your computer or network.