During startup, router VE1 displays the following error message:boot: cannot open "flash:"What will VE1 do next? -题库考试答案搜索网

During startup, router VE1 displays the following error message:boot: cannot open "flash:"What will VE1 do next?

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2022-01-18 17:23

A、It will attempt to locate the configuration file from a TFTP server. If this fails, it will initiate the setup dialog.
B、It will attempt to locate the IOS from a TFTP server. If this fails, it will load a limited IOS from ROM.
C、It will attempt to locate the configuration file from a TFTP server. If this fails, it will load a limited configuration from ROM.
D、Because of damaged flash memory, the router will fail the POST.E. It will attempt to locate the IOS from a TFTP server. If this fails, it will initiate the setup dialog.F. None of the above

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试题解析

B 解析：Explanation:The boot sequence of a Cisco router is shown below:Booting up the router and locating the Cisco IOS1. POST (power on self test)2. Bootstrap code executed3. Check Configuration Register value (NVRAM) which can be modified using the config-register command0 = ROM Monitor mode1 = ROM IOS2 - 15 = startup-config in NVRAM4. Startup-config file: Check for boot system commands (NVRAM)If boot system commands in startup-configa. Run boot system commands in order they appear in startup-config to locate the IOSb. [If boot system commands fail, use default fallback sequence to locate the IOS (Flash, TFTP, ROM)?]If no boot system commands in startup-config use the default fallback sequence in locating the IOS:a. Flash (sequential)b. TFTP server (netboot)c. ROM (partial IOS) or keep retrying TFTP depending upon router model5. If IOS is loaded, but there is no startup-config file, the router will use the default fallback sequence for locating the IOS and then it will enter setup mode or the setup dialogue.6. If no IOS can be loaded, the router will get the partial IOS version from ROM

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