Which of these threats can the Firebox prevent with the default packet handling settings? (Select four.)

Which of these threats can the Firebox prevent with the default packet handling settings? (Select four.)
A . Access to inappropriate websites
B . Denial of service attacks
C . Flood attacks
D . Malware in downloaded files
E . Port scans
F . Viruses in email messages
G . IP spoofing

Answer: B,C,E,G