CNX-001: CompTIA CloudNetX

By CompTIA · Question Mode

QuestionQ10

Network architecture design

An application runs on a three-node cluster where every server has identical compute- and network-performance specifications. A fourth node, with three times the performance of any one existing node, is scheduled to join the cluster. The network architect needs the new node to receive approximately the same number of requests as the other nodes combined. Which load-balancing methodology should the network architect recommend?

Explanation

Weighted load balancing assigns traffic in proportion to configured server weights. Giving the higher-performance node a weight of 3 and each existing node a weight of 1 directs approximately half of requests to the new node, matching the aggregate traffic sent to the three existing nodes. AWS documentation likewise describes weighted distribution as sending traffic according to assigned weights.

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