Question: In a 3GPP-compliant network, when selecting Cell Broadcast (CB) messages based on language preference stored in the SIM's EFPL (Preferred Language) file, what determines the language of the CB message?
Option 1: The language set by the Mobile Equipment (ME) manufacturer as default
Option 2: The Data Coding Scheme (DCS) received with the CB message
Option 3: The ISO 639 language code directly matched with EFPL entries without translation
Option 4: The Cell Broadcast Message Identifier capability settings on the ME
Explanation: According to 3GPP specifications, the language of a Cell Broadcast message is defined by the Data Coding Scheme (DCS) received with the CB message. This DCS dictates the language, which the Mobile Equipment (ME) then matches against the preferred languages stored in EFPL, to filter messages for the user.