In a large enterprise network, which two functions are performed by routers at the distribution layer?

In a large enterprise network, routers at the distribution layer play a critical role in connecting different segments of the network. This layer is responsible for aggregating data from multiple access layer switches and distributing it to the core layer or to external networks. By connecting remote networks, routers facilitate communication between different areas of the enterprise network and with external networks, ensuring that data can flow efficiently where it is needed.

The distribution layer also manages policies for traffic between subnets and applies routing protocols to determine the best paths for data transmission. This capability is essential for maintaining robust and flexible network performance, particularly as the demands placed on the network grow with increased traffic and the integration of various network resources.

While the other choices involve functions related to network management and security, they are typically the purview of different layers or components in the architecture. For instance, IP address management is usually handled at the network or access layer, VLAN tagging is primarily another function at the access layer to manage local traffic efficiently, and providing data traffic security is often the responsibility of dedicated security appliances or practices implemented within the core or within specialized security strategies across all layers. Thus, the main focus at the distribution layer remains on routing and interconnecting different network segments effectively.