Your customer runs an Internet-based retail website, hosted in a primary data center with a backup data center that is physically remote from the primary site. As part of their growth plan, they are exploring what it would take to upgrade to active/active data centers for inbound connections from their customers.
Which technology is required in this scenario?
A. Virtual Router Redundancy Protocol (VRRP)
B. OSPF
C. NAT
D. global server load balancing (GSLB)
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