单项选择题

As an experienced Network Engineer, you are responsible for network connectivity and system configuration. Which of the following protocols will be supported by Cisco Nonstop Forwarding (NSF)?（）

A.ISSU，OSPF，IS-IS
B.IETF，OSPF，ISSU
C.IS-IS，EIGRP，SSO，BGP
D.EIGRP，BGP，OSPF，IS-IS

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单项选择题

As a network administrator, you have configured a Catalyst 6500 Series Switch with redundant supervisor engine in a CIS network. What is the result of issuing the redundancy force-switchover command on that switch?（）

A. Automatic switchover from active to standby on primary supervisor failure
B. Reset of the primary supervisor.
C. Manual switchover from active to standby supervisor
D. Manual switchover from standby to active supervisor

单项选择题

As an experienced technician, you are required to configure and verify SRM with SSO redundancy. In such a situation, you have to issue several commands in proper orders. Which of the following is correct?（）

A. show redundancy states, redundancy, mode sso
B. show redundancy states, mode sso, redundancy
C. redundancy, mode sso, show redundancy states
D. mode sso, redundancy, show redundancy states

单项选择题

Which of these is a prerequisite for and must always run with Cisco NSF?（）

A.RPR
B.BGP
C.SSO
D.SRM