What is the use of an "all configuration" backup in Cisco UCS？（）
A. Can be used to migrate from a 6120 to a 6140 and retain the same service profiles
B. Can only be used on the fabric interconnect on which it was created
Can be used to migrate from a 6120 to 6140 and retain system IP addresses and cluster information
D. Can be used to match firmware versions between 6120 and 6140 during a migratio
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