フリー問題

問題文

Two branches of the nightly load each pass through a Transaction Control transformation of their own, and then the two branches meet at the transformation that merges pipelines into one branch. The team asks what becomes of the commit points that arrive from both sides at once. In the same mapping a lookup port is to be filled with a key that the Integration Service makes up as it inserts lines, and only some datatypes are open to that. Which pair of statements is right?

選択肢

1. When lines reach the merging transformation from more than one place that opens and closes transactions, the incoming boundaries are upheld, and a made-up key can be attached to a lookup port whose datatype is Bigint.
2. When lines reach the merging transformation from more than one place that opens and closes transactions, the incoming boundaries are voided, and a made-up key can be attached to a lookup port whose datatype is Bigint.
3. When lines reach the merging transformation from more than one place that opens and closes transactions, the incoming boundaries are voided, and a made-up key can be attached to a lookup port whose datatype is Double.
4. When lines reach the merging transformation from more than one place that opens and closes transactions, the incoming boundaries are upheld, and a made-up key can be attached to a lookup port whose datatype is Double.