A new firewall was recently installed blocking SMTPtraffic. As a result, no one has Internet access. Which of
the following has MOST likely occurred?
A.
Port security is blocking all traffic.
B.
An IDS is blocking all traffic.
C.
Implicit deny is blocking all traffic.
D.
SMTP is blocking all traffic.
IDS only inspects incoming packets
SMTP used to sent e-mail
Implicit deny indicates that unless something (such as traffic on a network) is explicitly allowed, it is denied.
Port security does not block all traffic