問題文
A network has just been set up so that visitors meet a page before they are let out. Which reading of the lists that decide what a visitor may reach before that page has been passed does the guide give?
選択肢
- The controller writes a fixed pair of lists by itself, letting through the handing out of addresses, the looking up of names, and the traffic toward the page, so a hand written one has to copy that and add to it.
- The controller writes a fixed pair of lists by itself, and a hand written one is read after it, so the two are added together and the handing out of addresses is covered twice over.
- The controller writes nothing at all by itself, so a hand written list is the only thing that lets through the handing out of addresses, the looking up of names, and the traffic toward the page in the first place.
- The controller writes a fixed pair of lists by itself and refuses a hand written one, so anything beyond the handing out of addresses and the looking up of names has to wait until the page has been passed.