Question: What happens when an Information Element (IE) is repeated in a GTP signalling message where repetition is not specified?
Option 1: All repeated IEs are handled and processed.
Option 2: Only the first occurrence of the IE is handled, and all subsequent repetitions are ignored.
Option 3: The GTP message is rejected due to invalid formatting.
Option 4: The repeated IEs are concatenated into a single IE.
Explanation: According to the GTPv2-C specification, when an Information Element is repeated in a GTP signalling message where repetition is not specified, only the contents of the first occurrence of the IE shall be handled, and all subsequent repetitions of the IE shall be ignored. This ensures that the GTP message is processed correctly and consistently, even if it contains duplicate or redundant information elements.