chapter 9 ccna quiz

chapter 9 ccna quiz.16.3.3 Backing up an IOS imageTo back up an IOS image, use the command copy flash URLO On the command line, you can also specify the name of the IOS file in flash memory. The URL uses URL-style syntax and includes the protocol (such as TFTP), the server IP address, the destination directory, and the name of the image to be used on the server. You can also specify only the protocol in the URL, so the router will prompt you for additional information, as shown below.Router# copy flash tftp Source filename []? c3640-js-mz.120-11 Address or name of remote host []? 192.168.1.10 Destination filename [c3640-js-mz.120-11]?IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII6754416 bytes copied in 64.452 secs (105537bytes/sec)When backing up the image, the screen will be flooded with exclamation marks (as shown above), where each exclamation mark indicates a successful packet copy. If instead of exclamation marks, you see a series of periods (.) , it means that the copy failed. After a successful copy, you will see how many bytes were copied and how long it took. Please compare the number of bytes copied to the length of the file in the flash memory to verify that the copy was indeed successful.A multimedia demonstration of backing up an IOS image in flash memory on your router is included in the companion digital resource to this book.16.3.4 Loading an IOS ImageBefore upgrading the IOS on a Cisco device, you need to verify that the device meets the minimum hardware requirements.. Does the router have the required minimum RAM? . Does the router have the required minimum flash memory? To see the amount of RAM and flash installed, use the command show version (see Chapter 10). Also, do not forget to verify (with the command