What is the primary purpose of a Content Delivery Network (CDN)?

The primary purpose of a Content Delivery Network (CDN) is to improve the speed and efficiency of delivering content over the internet, making option B the most accurate choice. CDNs achieve this by strategically distributing content across a network of geographically dispersed servers. When users request content, the CDN can deliver it from the closest server, reducing latency and load times, which in turn provides a better user experience.

This architecture is particularly beneficial for serving high-bandwidth content, such as video, images, and large files, ensuring that users experience minimal buffering or delays regardless of their location. The design of a CDN helps manage large volumes of web traffic, especially during peak usage times, ensuring reliable and fast access to websites and services globally.

In contrast, the other options do not accurately reflect the primary function of a CDN. Secure data storage pertains more to data security practices than to content delivery speed. Managing user permissions relates to access control mechanisms within an application or system, which is separate from the content delivery process. Monitoring network traffic is an important function in network management but does not define the core role of a CDN. Thus, the emphasis on fast, efficient data access globally captures the essence of what a CDN is designed to do.