What two pieces of information should be included in a logical topology diagram of a network?

A logical topology diagram of a network focuses on the way that data flows within the network rather than the physical layout of the devices. Including the interface identifier is crucial as it provides insight into how devices are logically interconnected. Interface identifiers help in understanding which logical interfaces are used for communication between devices, which can be critical for network design and troubleshooting.

When creating a logical topology diagram, it typically abstracts physical details to emphasize the relationships and communication paths between devices, which highlights logical connections over geographical placements or specific physical connections. Knowing the interface identifiers allows network administrators to visualize and document the network's operational aspects more effectively, ensuring that data flows through the correct paths and adheres to the intended design.

While the other choices can be valuable in understanding various aspects of a network, they do not fit the primary focus of a logical topology diagram. Routing protocols and connection types are more relevant to network performance and management but do not depict the logical arrangement of devices. Physical locations pertain more to the physical topology rather than the logical structure, which is the emphasis of this type of diagram.