Question 220
At the Westbridge housing service authority, a rule permits traffic between two valid hosts but uses Any service although only an application port is needed. Which interpretation best explains what is happening?
Explanation
Correct Answer
A correct pair of endpoints does not justify allowing every protocol and destination port. This directly explains the reported condition at the Westbridge housing service authority; it supports the decision to set the rule service to the necessary application service object.
Incorrect Answers
That statement describes rule sections and comments: rule comments and sections improve manageability; they do not change which connections match rules. At the Westbridge housing service authority, however, the reported facts indicate that a correct pair of endpoints does not justify allowing every protocol and destination port.
That statement describes policy hit analysis: low observed hit counts are useful evidence but are not by themselves proof a rule has no legitimate purpose. At the Westbridge housing service authority, however, the reported facts indicate that a correct pair of endpoints does not justify allowing every protocol and destination port.
That statement describes implicit or explicit cleanup: traffic that matches no permitted rule must have an intentional end-of-policy decision. At the Westbridge housing service authority, however, the reported facts indicate that a correct pair of endpoints does not justify allowing every protocol and destination port.