An NLB is configured with three healthy targets. If one target becomes unhealthy, how does the NLB distribute incoming TCP connections?

medium📝 Predict Output Q4 of 15

AWS - Elastic Load Balancing

AIt continues sending traffic to all targets including the unhealthy one

BIt stops sending traffic to the unhealthy target and distributes evenly among healthy targets

CIt sends all traffic to the first target only

DIt randomly drops connections until the unhealthy target recovers

Step-by-Step Solution

Solution:

Step 1: Understand NLB health checks
NLB performs health checks and routes traffic only to healthy targets.
Step 2: Traffic distribution behavior
When a target is unhealthy, NLB excludes it and balances traffic evenly among remaining healthy targets.
Final Answer:
It stops sending traffic to the unhealthy target and distributes evenly among healthy targets -> Option B
Quick Check:
Traffic distribution excludes unhealthy targets [OK]

Quick Trick: NLB sends traffic only to healthy targets [OK]

Common Mistakes:

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