What is the best upgrade method when the management server is not connected to the Internet?

exams 156-215.81 V1 156-215.81 exam 0 Comments

Customer’s R80 management server needs to be upgraded to R80.10.

What is the best upgrade method when the management server is not connected to the Internet?
A . Export R80 configuration, clean install R80.10 and import the configuration
B. CPUSE online upgrade
C. CPUSE offline upgrade
D. SmartUpdate upgrade

Answer: C