Question: What is the purpose of the Nnsacf_NSAC_LocalNumberUpdate service operation in the 5G System (5GS)?
Option 1: To update the global maximum number of registered UEs and/or number of PDU sessions of the network slice at NSACFs.
Option 2: To retrieve the current local maximum number of registered UEs and/or number of PDU Sessions of the S-NSSAI.
Option 3: To update local maximum number of registered UEs and/or number of PDU sessions of the network slice at NSACFs.
Option 4: To delete the existing local number configuration for a specific S-NSSAI.
Explanation: The Nnsacf_NSAC_LocalNumberUpdate service operation is used by the Primary NSACF to update the local maximum number of registered UEs and/or number of PDU sessions of the network slice at NSACFs. This is done by providing the S-NSSAI and the updated local number as inputs, and receiving a result indication as output.