What main attributes are used at layer 4 of the OSI model to filter traffic on a firewall?

What types of firewalls are able to analyze the contents of packets and the IP headers for signs that the traffic is legitimate?

The practice of designing operational aspects of a system to work with a minimal amount of system privilege is called:

When referring to firewalls, what does SPI Stand for?

Which of the folllowing firewalls keeps track of the state of network connections ?

When designing a network that consists of a firewall, the firewall design needs to be "BLANK" so that it can grow with the network it protects.

Which command is used to check whether a particular host is live or not?

State whether True or False.

Logging should be enabled for all the rules in the Rule Base.

By using which command can you see the active TCP connections?

State whether True or False.

The security of the Firewalls is a very important aspect.

At which layer do the Firewalls generally work in the OSI model?