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The Ultimate Glossary of eLearning Terms

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CDN is a global network of proxy servers deployed in multiple data centers to enable the high availability and high performance of content being viewed by the learner. It can reduce image file sizes to about 5% of their original size, although some of the image detail is lost in the compression. SSL (Secure Socket Layer).

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The A to Z of eLearning Acronyms Part 2

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It can reduce files sizes to about 5% of their original size, although some detail is lost in the compression. . Expanded to the Payment Card Industry Data Security Standard this acronym describes whether or not a vendor is adhering to the appropriate industry standards of payment information collection and processing.