フリー問題

問題文

A trading desk uses a voice codec that hides one lost packet by repeating the previous sound, and the calls share a ten megabit link with nightly backups. How does the codec answer loss, and what does the voice class need?

選択肢

1. A single lost packet is answered by the delayed reaction inside that codec, and the class transporting the calls has to be handed the leftover share of the ten megabit link.
2. A single lost packet is answered by the concealed reaction inside that codec, and the class transporting the calls has to be handed the assured share of the ten megabit link.
3. A single lost packet is answered by the concealed reaction inside that codec, and the class transporting the calls has to be handed the leftover share of the ten megabit link.
4. A single lost packet is answered by the delayed reaction inside that codec, and the class transporting the calls has to be handed the assured share of the ten megabit link.