I am planning to install Moodle (php application) with MySql database. At present i have it on a VPS with 8GB Ram 6 CPU centos but it is not efficiently catering the need of even 100 concurrent users. What way I can use DigitalOcean to cater the need for 1000 concurrent users who may take quiz at same time for online examination. There may not be any memory intensive multimedia but simple online quiz with multiple choice text/image questions. Please provide me a hardward architecture approach I can use to cater my needs. Thanks
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