問題文
An engineer brings this link state protocol up on a router and compares the wording it needs with the wording the protocol that floods inside areas needs. What has to be written for the loopback here, and which levels does an interface carry the moment it is named under the protocol?
選択肢
- Nothing of the sort has to be written for it, because the loopback is passive here of itself, which is not so for the protocol that floods inside areas, and the interface carries both levels until one of them is switched off, so a link of the lower level is declared by switching the higher level off on it
- The wording has to be written out for it here in the same way as it is for the protocol that floods inside areas, or the loopback is left out of what is flooded, and the interface carries both levels until one of them is switched off, so a link of the lower level is declared by switching the higher level off on it
- The wording has to be written out for it here in the same way as it is for the protocol that floods inside areas, or the loopback is left out of what is flooded, and the interface carries the lower level until the higher one is switched on, so a link of the higher level is declared by naming that level on it
- Nothing of the sort has to be written for it, because the loopback is passive here of itself, which is not so for the protocol that floods inside areas, and the interface carries the lower level until the higher one is switched on, so a link of the higher level is declared by naming that level on it