An e-commerce company's website experiences a sudden surge in traffic during a holiday sale, causing the web servers to slow down and become unresponsive. Which of the following high-availability techniques would be MOST effective in maintaining service performance and availability during this traffic surge?
Dynamic scaling, also known as auto-scaling or elasticity, is the most effective technique in this scenario. It automatically adds more compute resources (like virtual servers) to a resource pool to handle an increased load, ensuring the website remains responsive and available. Offsite backups are crucial for disaster recovery but do not help with live traffic surges. A hot site is a full-scale redundant data center for disaster recovery, which is excessive and not the primary solution for temporary traffic spikes. Port security is a network access control feature to prevent unauthorized device connections and is irrelevant to managing server load.
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Why is enabling port security not effective for handling traffic surges?