多项选择题

Which of the following procedures are involved in the recommended three-step troubleshootingflow？（Choose the best three answers.）（）

A.Problem report
B.Problem collaboration
C.Problem diagnosis
D.Problem resolution
E.Problem documentation
F.Probiem authentication

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单项选择题

Which of the following virtual MAC addresses is correct for the HSRP group 22？（）

A.0000.0c70.ac22
B.0000.0c07.22ac
C.0000.0c07.acl6
D.0000.0c07.ac22
E.0000.0c70.cala
F.0000.0d22.ac07

多项选择题

Which of the following are considered subcomponents of the problem diagnosis step of thetroubleshooting flow？（Choose all that apply.）（）

A.Eliminate potential causes
B.Collect information
C.Document causes
D.Hypothesize underlying causes
E.Verif/ hypothesis
F.Examine collected information

单项选择题

Which of the following is not a characteristic of Cisco Express Forwarding？（）

A.The adjacency table is populated from a router’s ARP cache
B.CEF does not require the first packet of a data flow to be process switched
C.CEF maintains the Forward Information Base and the adjacency table
D.CEF can be enabled with the interface command ip cef
E.The FIB is populated from a router’s IP routing table
F.On most router platforms CEF is enabled by default