Question: For a PCC rule with QCI=1, what does the Max-PLR-UL AVP specifically represent in relation to an uplink voice service data flow?
Option 1: The maximum allowed latency for packet transmission in milliseconds.
Option 2: The minimum required bandwidth for the data flow in kilobits per second.
Option 3: The ratio of lost packets per number of packets sent, expressed in tenths of a percent.
Option 4: The guaranteed bit rate for the uplink voice service in bytes per second.
Explanation: This is correct because the Max-PLR-UL AVP indicates the ratio of lost packets to the total number of packets sent for an uplink voice service data flow, with the unit being tenths of a percent, relating to packet loss rate (PLR) in uplink transmissions for voice services under QCI=1.