In the network diagram below, which device is the router?

The correct answer is A. A. Without the actual diagram visible, the correct answer is Device A based on the exam key. In typical network diagrams, routers are identified by their cylindrical or circular icon with arrows, and they are positioned at network boundaries - connecting different networks or…

Submitted by rohit_dlh· Apr 18, 2026Cybersecurity Foundations

Question

Exhibit

Options

How the community answered

(41 responses)

A
93% (38)
B
2% (1)
C
5% (2)

Explanation

Without the actual diagram visible, the correct answer is Device A based on the exam key. In typical network diagrams, routers are identified by their cylindrical or circular icon with arrows, and they are positioned at network boundaries - connecting different networks or sitting between a LAN and a WAN/Internet. Routers operate at Layer 3 (Network layer) and make forwarding decisions based on IP addresses. Switches (Layer 2) connect devices within the same network, and hubs broadcast to all ports. When identifying a router in a diagram, look for the device bridging separate network segments.

Topics

#Network Devices#Router#Network Fundamentals#Networking Concepts

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