Do firewall rules have to be symmetric? That is, does a firewall have to block a particular traffic type both inbound (to the protected site) and outbound (from the site)? Why or why not?

What will be an ideal response?

No.
A
firewall
could,
for
example,
allow
its
users
to
access
any
site
but
restrict
incoming
traffic
to
a
single
web
server.

Computer Science & Information Technology

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