Question: What is the primary purpose of the Authentication macros in the network?
Option 1: To facilitate seamless handover between different Radio Access Networks (RANs)
Option 2: To enable authentication of a mobile subscriber
Option 3: To manage Quality of Service (QoS) for priority services
Option 4: To optimize signaling for voice over LTE (VoLTE) calls
Explanation: The correct answer directly aligns with the purpose of verifying a mobile subscriber's identity, ensuring secure access to network services. This process prevents unauthorized use and maintains network integrity. Options 1, 3, and 4 are relevant to telecom operations but do not accurately describe the primary purpose of Authentication macros.