单项选择题
How is the cost of a virtual link in OSFP calculated？（）
A.Takes the metric of the outgoing interface. B.Uses the metric that is assigned during configuration. C.Uses the path metric to reach the virtual neighbor. D.Uses a default of zero unless otherwise specified.
单项选择题 WhatisthefunctionperformedbyLSAType1？（）
多项选择题 WhichthreeauthenticationoptionsdoesOSPFsupport？（）
单项选择题 RoutersAandBhaveanOC12candaGElinkbetweenthemandarerunningOSPFoverbothoftheselinks.Whichitemiscorrect，assumingthedefaultJUNOSsoftwareOSPFmetriccalculation？（）
