Question: In a USIM application, when the Mobile Equipment (ME) requests Trusted Key/Certificates Data Files for a Service (e.g., MexE), what action does the ME take after analyzing the data of EFTKCDF if additional information is required?
Option 1: The ME will directly authenticate using the analyzed EFTKCDF data.
Option 2: The ME skips further commands and proceeds with service activation.
Option 3: The ME performs READ BINARY commands on the identified files.
Option 4: The ME aborts the procedure due to insufficient initial data.
Explanation: After analyzing EFTKCDF data, if the Mobile Equipment (ME) needs more information for a service like MexE, it initiates READ BINARY commands to retrieve additional necessary data from specified files, ensuring all required credentials or keys are obtained for successful service utilization.