What are two basic rules Check Point recommending for building an effective security policy?

Two basic rules that Check Point recommends for building an effective security policy are Cleanup Rule and Stealth Rule. A Cleanup Rule is a rule that is placed at the end of the rule base and drops or logs any traffic that does not match any of the previous rules2. A Stealth Rule is a rule that is placed at the top of the rule base and protects the Security Gateway from direct access by unauthorized users3. The other options are not basic rules for building a security policy, but rather types or categories of rules.