When would you need to deploy Windows Routing and Remote Access (RRAS) services?

Deploying Windows Routing and Remote Access (RRAS) services is essential when configuring a virtual private network (VPN) site-to-site connection. This scenario allows for the secure transmission of data between two different networks over the internet, effectively connecting them as if they were on the same local area network (LAN). By using RRAS, network administrators can set up secure tunnels that encapsulate the data packets, protecting the information as it travels between sites.

RRAS not only facilitates VPN connections but also supports various routing protocols, enabling efficient management of network traffic. This capability is particularly critical for organizations with remote offices or branches needing seamless access to shared resources across networks without compromising security.

In contrast, improving local network speed and backing up network data are related to different networking and data management tasks that do not necessitate the use of RRAS. Upgrading network security typically involves a broader range of technologies and practices beyond just the deployment of routing and remote access services. Therefore, while improving local speed and securing data are important considerations in networking, they do not specifically require RRAS, making it clear that option B is the correct context for utilizing this service.