Question 2) Cisco Certified Network Associate

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SubObjective: Manage system image and device configuration files

Single Answer Multiple Choice

Which command should you use to save configuration changes to NVRAM?

A. copy running-config tftp
B. copy tftp running-config
C. copy startup-config running-config
D. copy running-config startup-config

Answer:
D. copy running-config startup-config

Tutorial:
The ‘copy running-config startup-config’ command copies a configuration file from RAM to NVRAM (from the running configuration to the startup configuration). This command is useful when you have made changes to the running configuration and need to save these changes to the startup configuration. This command is issued from the privileged EXEC mode (Router#).
The ‘copy running-config tftp’ command sends the running configuration file to a TFTP server. This command is especially useful when you have a configuration that you need to load on multiple routers. This command is issued from the privileged EXEC mode (Router#).

The ‘copy tftp running-config’ command copies a file from a TFTP server to the running-configuration. This command is especially useful when you have a saved configuration and you want to load it on a replacement router. However, to store this configuration, you must use the ‘copy running-config startup-config’ command. This command is issued from the privileged EXEC mode (Router#).

The ‘copy startup-config running-config’ command copies a configuration file from NVRAM to RAM. This command is useful when you have made changes to the running configuration and need to revert to the unmodified startup configuration. This command is issued from the privileged EXEC mode (Router#).

RAM is the random access memory that contains the router software and data structure. This is where the Cisco IOS and running configuration are usually stored.
NVRAM stores the router configuration and has a battery to store the configuration when power is not available to the router.

NOTE: When you manipulate the configuration in router RAM, you are dealing with the running configuration. The file in NVRAM is known as the startup configuration.
For more information on copying configuration files, see the Working with the IOS File System, Configuration Files, and Software Images documentation at
http://www.cisco.com/univercd/cc/td/doc/product/lan/c3550/1216ea1/3550scg/swiosfs.htm

Reference:
1. INTRO Student Guide v1.0a – Volume 3 – Managing Cisco Devices – Cisco IOS copy Command

These questions are derived from the Self Test Software Practice Test for Cisco exam 640-801 – Cisco Certified Network Associate (single-exam option)

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