How does elastic scaling out primarily enhance the performance of VMware NSX Advanced Load Balancer?

Question

Options

• ABy increasing the physical hardware resources automatically
• BBy distributing traffic among multiple service engines
• CBy adding more virtual machines to the service engine group
• DBy upgrading the firmware of the service engines

• B
  93% (37)
• C
  3% (1)
• D
  5% (2)

Explanation

Elastic scaling out in VMware NSX Advanced Load Balancer enhances performance by distributing traffic across multiple Service Engines (SEs), allowing the system to handle increased load horizontally without degrading response times. When demand spikes, the controller spins up additional SEs and balances incoming requests among them - this is the core "scale out" mechanism.

Why the distractors are wrong:

• A is wrong because elastic scaling is a software/virtual capability - it doesn't touch physical hardware; the hardware stays fixed.
• C is partially misleading: while new VMs (SEs) may be added, simply adding VMs alone isn't the performance mechanism - the benefit comes from distributing traffic across them, not the act of adding them.
• D is wrong because firmware upgrades are a maintenance/patching operation, completely unrelated to load balancing or scaling behavior.

Memory tip: Think of "scale out" as spreading the load outward like lanes on a highway - more lanes (SEs) means more cars (traffic) can move simultaneously. If it were "scale up," you'd be adding hardware (bigger trucks, not more lanes), which eliminates A.

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