单项选择题
A.R4（config）# ip default-network 10.0.0.0
B.R4（config）# ip route 0.0.0.0 0.0.0.0 10.1.1.1
C.R4（config）# ip route 10.0.0.0 255.0.0.0 10.1.1.1
D.R4（config-router）# default-information originate
多项选择题 Refer to the exhibit. Which three statements accurately describe the result of applying the exhibited route map？（）
单项选择题 IfametricisnotspecifiedforroutesthatareredistributedintoOSPF，thedefaultmetricthatisassignedtotheroutesis20，exceptforredistributedBGProutes.WhatisthemetricthatisassignedtoredistributedBGProutes？（）
单项选择题 IfnometricisspecifiedfortheroutesbeingredistributedintoIS-IS，whatmetricvalueisassignedtotheroutes？（）
