Which of the following rules appearing in an Internet firewall policy is inappropriate?

Unless approved by the Network Services manager, all in-bound services shall be intercepted and processed by the firewall. Allowing unrestricted services inbound and outbound is certainly NOT recommended and very dangerous.

Pay close attention to the keyword: all

All of the other choices presented are recommended practices for a firewall policy.

Reference(s) used for this question:

GUTTMAN, Barbara & BAGWILL, Robert, NIST Special Publication 800-xx, Internet Security Policy: A Technical Guide, Draft Version, May 25, 2000 (page 78).