Question: In 3GPP's Generic Authentication Architecture (GAA), how are data variables typically presented in terms of significance within this specification?
Option 1: Most Significant Substring on the Left, Least Significant Substring on the Right
Option 2: Most Significant Substring on the Right, Least Significant Substring on the Left
Option 3: Significance is indicated by substring length, not position
Option 4: Variable, depending on the specific authentication protocol used
Explanation: According to the conventions outlined in telecom standards for such architectures, data variables are presented with the most significant substring on the left and the least significant substring on the right. This standardizes how data is read and interpreted within authentication frameworks like GAA, ensuring consistency across different implementations.