Which existing technologies can be used to prevent security breaches by segmenting network traffic over multiple tables simultaneously on a single router?

The correct answer is Virtual Routing and Forwarding (VRF). VRF is a technology that enables multiple instances of a routing table to coexist on the same router at the same time. This segmentation allows for the isolation of network traffic between different customers or departments within the same physical infrastructure, effectively enhancing security by preventing unauthorized access to the data or traffic associated with other segments.

By utilizing VRF, routers can handle traffic from different networks as if they were separate logical routers. This can be particularly beneficial in environments where different services need to be secured from one another, as it minimizes the risk of traffic leakage or interference between different applications or user groups.

In comparison, while Network Address Translation (NAT) assists with traffic routing and preserving IP addresses, it does not inherently segment traffic for different networks in the same way that VRF does. Virtual Local Area Networks (VLANs) can segment broadcast domains and improve network performance and security within a local network but do not provide the same level of separation as multiple routing tables on a single router. Routing Information Protocol (RIP) is a dynamic routing protocol that facilitates the exchange of routing information but does not provide traffic segmentation capabilities. Thus, VRF stands out as the most suitable technology for this particular