What is the purpose of using an automatic configuration script in Zscaler?

Using an automatic configuration script in Zscaler serves the specific purpose of downloading and executing a custom Proxy Auto-Configuration (PAC) file. This PAC file contains rules that direct the web browser on how to automatically choose the appropriate proxy server for accessing a particular URL. By utilizing an automatic configuration script, organizations can dynamically manage and distribute proxy settings across their user base, ensuring that users are always directed to the right proxy configurations without manual setup on each device.

This approach enhances flexibility and simplifies configuration management, as updates to the PAC file can be made centrally, propagating the changes across all relevant systems seamlessly. When staff or devices join or move within the network, they leverage the most up-to-date configurations provided by the PAC file.

The other options do not accurately reflect the purpose of the automatic configuration script. For instance, while local caching of proxy settings might be beneficial, it's not the primary function of the script; the script itself is primarily about configuring proxy settings dynamically through a PAC file. Likewise, bypassing traffic entirely or hard-coding proxy settings is not in line with the dynamic nature of how Zscaler configurations are intended to be managed. The focus of the system is on adaptable and responsive proxy settings rather than fixed or bypass configurations.