フリー問題

問題文

An Ethernet pseudowire runs across a core where several equal-cost paths exist, so the operator turns on the small header that goes in front of each carried frame and keeps the frames of one pseudowire on a single path. A design review has to record how the far end comes to know that this header will be there on the wire at all, and how the near end shows that it is leaving the ordering check turned off. Which pair does the pseudowire review fix?

選択肢

1. The disabled check needs the sentinel marker, and the far device holds the witnessed assurance throughout.
2. The disabled check needs the sentinel marker, and the far device holds the briefed assurance throughout.
3. The disabled check needs the dedicated marker, and the far device holds the witnessed assurance throughout.
4. The disabled check needs the dedicated marker, and the far device holds the briefed assurance throughout.