ForJuniper cloud-ready EX Series switches(EX2300, EX3400, EX4100, EX4400, etc.) to successfully onboard to theJuniper Mist Cloud, specific connectivity requirements must be met:

''Cloud-managed EX switches require outbound connectivity to the Mist Cloud on TCP ports 2200 or 443. Switches must also have access to DNS services to resolve cloud service URLs during onboarding.''

Option A:Incorrect --- minimum version depends on switch model; older models may onboard with earlier releases (e.g., 20.x, 21.x).

Option B:Correct--- outbound TCP 2200 or 443 connectivity is required for cloud registration.

Option C:Incorrect --- switches connect directly to Mist Cloud, not the Agile Licensing Portal.

Option D:Correct--- DNS resolution is mandatory for discovering Mist Cloud endpoints.

Juniper Mist AI for Wired -- Cloud-Ready Switch Onboarding Requirements

Juniper Mist AI for Wired -- Network Connectivity and Port Usage

Junos OS Documentation -- Mist Cloud Connectivity and Registration