Question: What is the primary purpose of the 5G Equipment Identity Register (5G-EIR) in a 5G System?
Option 1: To verify the status of Permanent Equipment Identifier (PEI) and ensure it has not been prohibited.
Option 2: To manage subscriber data and authentication credentials.
Option 3: To handle media transfer and signaling between User Equipment (UE) and the network.
Option 4: To provide location services for emergency calls.
Explanation: The 5G-EIR is used to check the status of PEI, which is essential for ensuring that only authorized equipment can access the network. This functionality helps prevent prohibited or blacklisted devices from connecting to the network, thereby enhancing security and preventing potential threats.