Which two functions of a firewalls in an enterprise network are true (choose two)

A. They can use information about previous packets to make decisions about future packets.

E. They are more susceptible to DoS attacks than stateless firewalls

Explanation:

Assuming the following options:

A. They can use information about previous packets to make decisions about future packets.

B.  They are most effective when placed in front of the router connected to the Internet

C. They can track the number of active TCP connections

D. They can fitter HTTP and HTTPS traffic in the inbound direction only

E. They are more susceptible to DoS attacks than stateless firewalls

A firewall by definition is a "software used to maintain the security of a private network. Firewalls block unauthorized access to or from private networks and are often employed to prevent unauthorized Web users or illicit software from gaining access to private networks connected to the Internet".

The basic purpose of a firewall is to control the traffic that is allowed to traverse from the internet.  

Option A is correct since they use previous info in prder to make decisions about a site.

Option B is not true since the firewall is a software that not depends of the router connection to the internet, since the web is open for any IP.

Option C is not correct isnce the purpose for the firewalls is not analyze the acitve connections.

Option D is not correct since they can work in both directions and no present limitations in order to filter web pages to classify the info.

Option E is correct since one characteristic of the stateless firewalls compared to the stateful firewalls. Since "Stateless firewalls watch network traffic and restrict or block packets based on source and destination addresses or other static values" and present more security comaprd to the stateless stateful.