Question: In an IP Multimedia Subsystem (IMS) network, which mechanism is particularly suited for preventing overload in application servers caused by calls to a specific destination?
Option 1: Next-hop monitoring of overload, where an IMS node provides feedback to its neighbors.
Option 2: Implementing MPS priority information without any additional mechanisms.
Option 3: Filter-based mechanism, where an IMS node sends load control filters to subscribed nodes.
Option 4: Disabling SIP server functionality during peak traffic hours.
Explanation: The filter-based mechanism is specifically noted for being well-suited for application servers when the source of overload is due to calls to a specific destination, such as mass calling to a particular number. This targeted approach allows for more precise management of potential overloads originating from specific traffic patterns.