A cisco router is booting and has just completed the POST process．It is now ready to find and load an IOSimage．what function does the router perform next?
A、
It checks the configuration register
B、
It attempts to boot from a TFTP server
C、
It loads the first image file in flash memory
D、
It inspects the configuration file in NVRAM for boot instructions
【正确答案】
A
【答案解析】
下一步检查configuration register 然后决定加载配置
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