Which statement describes a stateful firewall?

IT Questions BankCategory: DevNetWhich statement describes a stateful firewall?

Which statement describes a stateful firewall?

  • It can filter packets based on information at Layers 3, 4, 5 and 7 of the OSI reference model.
  • It can determine if the connection is in the initiation, data transfer, or termination phase.
  • It can only filter packets based on limited Layer 3 and 4 information.
  • It can expand the number of IP addresses available and can hide network addressing design.

Explanation: Basic packet filtering firewalls can only filter based on Layer 3 and sometimes basic Layer 4 information. An application gateway firewall, or proxy firewall, can filter based on information in the upper layers such as the application layer. A NAT firewall can expand the number of available IP addresses on the network.

Exam with this question: DevNet Associate Final Exam Answers
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