多项选择题
A.version
B.experimental
C.label
D.protocol
E.TTL
F.bottom-of-stack indicato
多项选择题 WhichthreestatementsaretruewhenconfiguringCiscoIOSFirewallfeaturesusingtheSDM？（）
单项选择题 WhichformofDSLtechnologyistypicallyusedasareplacementforT1lines？（）
多项选择题 Refer to the exhibit. Which three statements describe the steps that are required to configure an IPsec site-to-site VPN using a GRE tunnel？（）