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单项选择题 After working all night and successfully configuring a Cisco router for the TestKing network you save your changes on the startup config, reboot the router, and go out for a cigarette. When you return, none of your changes are active and the router boots to the initial configuration mode! Which of the choices below indicates the source of your problem?()

A、Hardware failure in NVRAM prevents the router from loading the config

B、Startup-config in flash is corrupt and cannot be analyzed

C、Router configuration-register set to bypass startup configuration

D、Startup-config in NVRAM is corrupt and cannot be analyzed

E、None of the above

  • C
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