多项选择题 Which of the following technologies can be used in distance vector routing protocols to prevent routing loops?（）

多项选择题 Non-contiguous networks can pose a problem for network reachability in certain circumstances. Which of the following routing protocols have means of minimizing the risk?（）

多项选择题 Which one of the routing protocol below does NOT use a distance vector algorithm to calculate a route to a given destination?（）