Refer to the exhibit. Which statement describes the effect of this configuration?

The provided configuration only defines how HTTP traffic is classified using an ACL and class map; it does not include the creation or application of a service policy to interfaces, nor does it specify any remarking action.

While an ACL named `WEB` is created to identify HTTP traffic, an ACL by itself does not actively filter (permit or deny) traffic on an interface unless it is explicitly applied with `ip access-group` commands. In this context, it's used for matching within a class map.

The configuration first defines an extended access list named `WEB` to identify traffic destined for TCP ports 80 (www) and 443. Subsequently, a `class-map match-all HTTP` is created, which uses this `WEB` access list to classify or match the identified HTTP and HTTPS traffic. This classification is the foundational step for applying Quality of Service (QoS) actions within a `policy-map`.

This configuration creates a new class map and an access list; it does not modify any default policy map. Furthermore, it defines traffic matching criteria, not actions that 'allow' traffic through the router.