单项选择题
To securely transport EIGRP traffic, a network administrator will build VPNs between sites. What is the best method to accomplish the transport of EIGRP traffic?（）
A. IPSec in tunnel mode B. IPSec in transport mode C. GRE with IPSec in transport mode D. GRE with IPSec in tunnel mode
单项选择题 Foracceptablevoicecalls，thepacketerrorrateshouldbenohigherthanwhatvalue？（）
多项选择题 Whichtwoofthesearerecommendedpracticeswithtrunks？（）
多项选择题 Whichtwodesignconcernsmustbeaddressedwhendesigningamulticastimplementation？（）
