フリー問題

問題文

The senders never reduce their rate although queues on the path are observed close to full and drops occur. No packet arrives at the receiver with the congestion indication set. Which cause explains that?

選択肢

1. That is explained by stale mobility record on the audited release specification.
2. That is explained by lease reuse counter on the audited release specification.
3. That is explained by misaligned marking threshold on the audited release specification.
4. That is explained by throttled export interval on the audited release specification.