Final answer:
The site referred to is a mirror site, which holds a copy of the primary site's programs and data to decrease network traffic, increase speed, and provide backup. So the correct answer is option 4).
Step-by-step explanation:
The site that maintains copies of the primary site's programs and data is known as a mirror site. A mirror site is a replica of the primary site's content and is often used for the purpose of reducing network traffic, improving access speed, or providing redundancy in case the primary site fails. This setup is essential for maintaining data availability and integrity, especially in the event that the primary site experiences downtime or data loss.
A mirror site is a copy or duplicate of the main server, website, or data repository with synchronized or exact content and functionality. The basic goals of these mirror sites are to improve content distribution, accessibility, and dependability across several areas, as well as to act as a backup in case the main site experiences problems.
The data, files, databases, and resources of the parent site are essentially replicated to mirror sites. To reduce the risks related to downtime, heavy traffic, or server failures, they are positioned strategically in geographically disparate regions or on different servers. They contribute to the enhancement of content availability, speed, and performance for users globally by spreading the burden of user requests among several mirror sites.