Explain Windows Firewall with Advanced Security inbound and outbound rules and default behavior.

• A. Inbound rules control traffic leaving the host; outbound rules control traffic to services; default is to allow all traffic.
• B. Inbound rules control traffic to services; outbound rules control traffic leaving the host; default is to block unsolicited inbound and allow most outbound traffic (with exceptions).
• C. Outbound rules control traffic to services; inbound rules control traffic leaving the host; default is to block all traffic.
• D. Inbound rules control traffic to services; outbound rules control traffic leaving the host; default is to allow all inbound traffic.

Answer: (B)

Inbound rules govern traffic addressed to the computer’s services, while outbound rules govern traffic that originates from the computer. Windows Firewall with Advanced Security uses these two rule types to filter connections: you can allow or block specific kinds of inbound connections to services running on the host, and you can allow or block outbound connections initiated by the host’s applications.

The default behavior is to block unsolicited inbound connections to protect the machine from external access, and to allow most outbound connections so common applications can reach the network without unnecessary friction. Exceptions are applied through rules (for example, a program may be blocked from reaching the network, or certain inbound services may be explicitly allowed).

So the best description is: inbound rules control traffic to services; outbound rules control traffic leaving the host; default is to block unsolicited inbound and allow most outbound traffic (with exceptions).