Question: What is a key characteristic of the structure of EFSNE (Second Name Entry) in relation to EFADN (Abbreviated Dialing Numbers) in a USIM application?
Option 1: Each EFSNE record can be shared among multiple phonebook entries, with its content coded independently of EFADN.
Option 2: The number of EFSNE records is always equal to the number of records in EFADN, with each containing a unique second name entry coded similarly to EFADN's alpha identifiers.
Option 3: EFSNE records do not have a direct association with EFADN records, and their coding is based on a different specification than that used for EFADN.
Option 4: The structure of EFSNE includes only the second name entry's string, without any reference or identifier linking it to a specific EFADN record.
Explanation: This option correctly highlights two key aspects of EFSNE in relation to EFADN: 1. Quantity Relationship: The number of EFSNE records may be less than or equal to the number of records in EFADN, implying a direct but not necessarily one-to-one relationship. 2. Coding and Association: Each EFSNE record contains a unique second name entry coded similarly to the alpha identifiers for EFADN, indicating a structured association between the two, with EFSNE also including identifiers (SFI and Record Identifier) that link it to specific EFADN records. Option 2 accurately reflects these nuances without misrepresenting the relationship or the coding/content structure as described in the context.