Cloud traffic will nearly quadruple to account for 92% of total data center traffic by 2020, with the remaining 8% processed in traditional data centers, according to new research from network products provider Cisco.

In its sixth annual Global Cloud Index report, the company said cloud traffic is expected to rise 3.7-fold, up from 3.9 zettabytes (ZB) per year in 2015 to 14.1 ZB per year by 2020. The rapid growth of cloud traffic is attributed to increased migration to cloud architectures due to their ability to scale quickly and efficiently support more workloads than traditional data centers.

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