Physical Network Topologies for N10-007: CompTIA Network+ Exam

Distinguishing Network Topologies - N10-007: CompTIA Network+ Exam

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Question

A network technician has created a network that consists of a router, a firewall, a switch, and several PCs.

Which of the following physical network topologies was created?

A.

Star B.

Mesh C.

Ring D.

Bus.

D.

Explanations

A network technician has created a network that consists of a router, a firewall, a switch, and several PCs.

Which of the following physical network topologies was created?

A.

Star

B.

Mesh

C.

Ring

D.

Bus.

D.

The physical network topology refers to the physical layout of devices and cables that make up the network. In this case, the network technician has created a network consisting of a router, a firewall, a switch, and several PCs. Let's examine each of the physical topologies listed in the answer choices to determine which one is being used.

A. Star Topology A star topology connects all devices to a central point such as a switch or hub. The devices are not directly connected to each other, but instead, they communicate through the central point. This topology is common in Ethernet networks. In a star topology, if one device fails, it does not affect the rest of the network. Since the network in this question does not have all devices connected to a central point, it cannot be a star topology.

B. Mesh Topology In a mesh topology, each device is connected to every other device in the network. This topology is typically used in mission-critical networks that require high levels of redundancy and fault tolerance. Since this network has not been described as having each device connected to every other device, it cannot be a mesh topology.

C. Ring Topology A ring topology connects each device to its nearest neighbor in a loop or ring. Data is transmitted around the ring in one direction, and each device repeats the data to the next device until it reaches the destination. This topology is not commonly used in modern networks since it is prone to failure if one device fails or if the cable is damaged. Since the network in this question has not been described as a loop or ring, it cannot be a ring topology.

D. Bus Topology A bus topology connects all devices to a single cable called a bus. Data is transmitted along the cable, and each device receives and processes the data intended for it. The network technician has created a network that consists of a router, a firewall, a switch, and several PCs. In a bus topology, all devices are connected to a single cable, and this network does not fit that description. Therefore, it cannot be a bus topology.

Based on the above analysis, we can conclude that none of the physical network topologies listed in the answer choices match the network described in the question. Therefore, the correct answer would be "None of the above."