フリー問題

問題文

A team needs to add the same attribute to every span that passes through the Collector. Which processor is intended for that?

選択肢

1. The filter processor, by writing a condition that always evaluates to true.
2. The metricstransform processor, because it shares its configuration format with the attributes processor and additionally supports the renaming of metric names.
3. The attributes processor, which can update, insert, delete or replace attributes on metrics or traces.
4. The memory_limiter processor, using its attribute action list.