Question: In a Cell Broadcast Service (CBS) as per 3GPP specifications, what can be inferred about the 'Warning Type' parameter in an ETWS Primary Notification message's structure and possible values?
Option 1: It is unique to ETWS Primary Notifications with values defined exclusively for this message type.
Option 2: Its structure and possible value range are identical to another Warning Type described elsewhere in the specifications.
Option 3: The structure is standardized but the possible values vary based on the cell's geographical location.
Option 4: Both structure and possible values are dynamically determined by the serving cell's configuration.
Explanation: This answer is correct because the 'Warning Type' parameter in an ETWS Primary Notification message has a structure and possible value range identical to another Warning Type, indicating consistency across different parts of the specification for this particular aspect, highlighting standardization importance within telecom protocols.