Podcast
Questions and Answers
What is a key difference between packet-filtering gateways and stateful inspection firewalls?
What is a key difference between packet-filtering gateways and stateful inspection firewalls?
- Packet-filtering gateways analyze each packet's IP addresses and ports.
- Stateful inspection firewalls look at combinations of addresses and ports/protocols.
- Stateful inspection firewalls control access based on packet address and transport protocol type. (correct)
- Packet-filtering gateways maintain state information from one packet to the next.
In the context of the text, what is the primary function of a packet-filtering gateway?
In the context of the text, what is the primary function of a packet-filtering gateway?
- Filtering traffic based on source IP rather than port. (correct)
- Maintaining state information from one packet to the next.
- Simulating application behavior at OSI layer 7.
- Counting the number of systems coming from external IPs.
What characteristic distinguishes application proxies from packet-filtering gateways and stateful inspection firewalls?
What characteristic distinguishes application proxies from packet-filtering gateways and stateful inspection firewalls?
- Application proxies simulate application behavior at OSI layer 7. (correct)
- They maintain state information across packets.
- Application proxies analyze IP addresses and ports of each packet.
- They control access based on specific transport protocol types.
Based on the text, what is a limitation mentioned regarding defining rules requiring state/context?
Based on the text, what is a limitation mentioned regarding defining rules requiring state/context?
What does a stateful inspection firewall do that packet-filtering gateways do not?
What does a stateful inspection firewall do that packet-filtering gateways do not?
Which type of gateway is most likely to filter out Telnet traffic but allow HTTP traffic in the context provided?
Which type of gateway is most likely to filter out Telnet traffic but allow HTTP traffic in the context provided?
What is one of the purposes of application proxies mentioned in the text?
What is one of the purposes of application proxies mentioned in the text?
At which OSI layer does a circuit-level gateway operate?
At which OSI layer does a circuit-level gateway operate?
What is a common use of a circuit-level gateway mentioned in the text?
What is a common use of a circuit-level gateway mentioned in the text?
How does a personal firewall differ from other firewalls according to the text?
How does a personal firewall differ from other firewalls according to the text?
How does a guard firewall function according to the text?
How does a guard firewall function according to the text?
Which type of firewall determines what services to perform on the user's behalf according to the text?
Which type of firewall determines what services to perform on the user's behalf according to the text?
