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17 Cards in this Set
- Front
- Back
Cisco devices have three distinct operating environments or modes, they are?
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ROM monitor, Boot ROM, Cisco IOS
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At startup a Cisco router normally loads into
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RAM
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After loading into RAM a Cisco Router executes one of these operating systems
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ROM monitor, Boot ROM, or Cisco IOS
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A system administrator can use the configuration register setting to
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Control the default startup mode for a router
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The ROM monitor performs the bootstrap process and provides
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low-level functionality and diagnostics
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The bootsrap process is performed by
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ROM
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ROM monitor is used to
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Recover from system failure and to recover a lost password.
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ROM monitor can only be accessed by way of a
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direct physical connection through the console port
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When the router is running in boot ROM mode what features are available
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only a limited subset of the Cisco IOs features
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Boot ROM allows
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write operations to flash memory
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Boot ROM is used primarily to
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Replace the Cisco IOS image in flash
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In boot ROM, which command copies the IOS image into the flash memory
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tftp flash
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Most Cisco routers require a copy of the IOS to be loaded into
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RAM and executed from there
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Some IOS images are stored in flash in a compressed format and have to be
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Expanded when copied to RAM
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To see the IOS image and the version that is running use
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The show version command
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In addition to the IOS the show version command also shows
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The configuration register setting
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The show flash command is used to verify that the system has
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Sufficient memory to load a new Cisco IOS image
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