多项选择题A customer has purchased a new Junos Pulse Access Control Service and wants to install it in an existing cluster.After initial configuration, the customer finds that the firmware version running on the Junos Pulse Access Control Service is 4.1 r5, but the existing cluster is running firmware version 4.1 r3. Which two actions must be performed to allow the new Junos Pulse Access Control Service to load the older version of firmware?()
A. Install a valid license on the new Junos Pulse Access Control Service.
B. When loading the older firmware, delete all the existing data on the Junos Pulse Access Control Service.
C. Add the new Junos Pulse Access Control Service to the existing cluster.
D. Download the 4.1 r3 version firmware from the Juniper support website.