フリー問題

問題文

An engineer walks through the four counts that a loss measurement over a labeled channel collects. Which statement is correct?

選択肢

1. The querying node starts the run by sending query messages over the channel at a stated rate, one message each hundred nanoseconds, the fourth of the four counts may be left out of the message though writing it there is handy where the message is forwarded on to an outside measuring system, and the arithmetic that turns those counts into a loss figure is carried out underneath the counter size.
2. The querying node starts the run by sending query messages over the channel at a stated rate, one message each hundred milliseconds, the fourth of the four counts may be left out of the message though writing it there is handy where the message is forwarded on to an outside measuring system, and the arithmetic that turns those counts into a loss figure is carried out modulo the counter size.
3. The querying node starts the run by sending query messages over the channel at a stated rate, one message each hundred nanoseconds, the fourth of the four counts may be left out of the message though writing it there is handy where the message is copied on to an outside measuring system, and the arithmetic that turns those counts into a loss figure is carried out modulo the counter size.
4. The querying node starts the run by sending query messages over the channel at a stated rate, one message each hundred milliseconds, the fourth of the four counts may be left out of the message though writing it there is handy where the message is copied on to an outside measuring system, and the arithmetic that turns those counts into a loss figure is carried out underneath the counter size.