Which three of these options are some of the best practices when you implement an effective firewall security policy? (choose three)

A.
position firewalls at a strategic inside locations to help mitigate nontechnical attacks

B.
configure logging to capture all events for forensic purposes

C.
use firewalls as a primary security defense; other security measures and devices shoulde be

D.
position firewalls at key security boundeeries

E.
deny all traffic by default and permit only necessary services

Explanation:
implemented to enhance your network security