Which statement best describes the Least Connection load balancing method in GSLB?

• A. It directs traffic to the data center with the fewest active connections
• B. It uses the data center with the least bandwidth
• C. It uses the data center with the best RTT
• D. It distributes traffic round-robin among data centers

Answer: (D)

Least Connection load balancing in GSLB bases its routing decision on live connection counts at each data center, directing new requests to the data center with the fewest active connections. This approach helps even out the actual service load, especially when many clients maintain long-lived connections, by preventing one site from becoming a bottleneck while others have spare capacity.

In a global setup, GSLB can combine this with health and proximity data, but the essence of Least Connections is about current connection load rather than bandwidth or latency. The option that says traffic is distributed evenly in a round-robin fashion describes a different method that doesn’t account for real-time load. Similarly, routing by the data center with the least bandwidth or the best RTT uses different metrics and isn’t theSame as Least Connections.

So, the mechanism that best matches Least Connections is sending traffic to the data center with the fewest active connections, balancing ongoing load across sites.