CompTIA Network+ (N10-006) — Question 60

A company wants to create highly available datacenters.
Which of the following will allow the company to continue to maintain an Internet presence at all sites in the event that a WAN circuit at one site goes down?

Answer options

• A. Load balancer
• B. VRRP
• C. OSPF
• D. BGP

Correct answer: D

Explanation

BGP (Border Gateway Protocol) is designed to maintain routing information and establish resilient connections between different networks, which is essential for maintaining Internet connectivity in case of WAN failures. In contrast, a Load balancer primarily distributes traffic, VRRP provides redundancy for IP addresses, and OSPF is used for internal routing but does not handle WAN-level failover like BGP.