フリー問題

問題文

The team then turns on the extension that lets a device append the label stack to the control messages it raises for an expired hop count. An engineer has to record what happens to the extended form of the hop trace where encapsulation-specific handling of the hop count already defeats the plain form, and what one instance of that object carries. Which statement is correct?

選択肢

1. The extended form is left standing in the same way, and one instance carries the whole stack as it stood on arrival at the device that raised the message.
2. The extended form is defeated on the same ground, and one instance carries the whole stack as it stood on arrival at the device that raised the message.
3. The extended form is defeated on the same ground, and one instance carries the topmost entry alone as it stood on arrival at the device that raised the message.
4. The extended form is left standing in the same way, and one instance carries the topmost entry alone as it stood on arrival at the device that raised the message.