1.2 Network Topologies

What is a star topology?

Connects network devices to the network with a single patch cable; a patch cable failure make the connected device unavailable.

Your have a network that uses a logical bus topology. How do messages travel through the network?

Messages are broadcast to all devices connected to the network.

Your have a network that uses a logical ring topology. How do messages travel through the network?

Messages travel from one device to the next until they reach the destination device. If the message is not intended for that device, the message is forwarded to the next device on the network.

Your manager has asked you to implement a wired network infrastructure that will accommodate failed connections. You don't have a large budget, so you decide to provide redundancy for only a handful of critical devices. Which type of network topology should you implement?

Partial mesh.

What type of physical topology uses a Hub to create a network?

Physical star topology.

Which topology connects each device to a neighboring device?

Ring Topology.

In which topology does each device on the network act as a repeater, sending the signal to the next device?

Ring topology.

What is a mesh topology?

Series of point-to-point links between devices.

You have a small network that uses a switch to connect multiple devices. Which physical topology are you using?

Star

Which topology connects each network device to a central hub?

Star topology.

What device is used to create a physical star topology?

Switch or a hub.

What is a router?

Used to connect multiple subnets together.

What are two characteristics of a mesh topology?

•There is no central connecting point. •Any host can communicate directly with any other host on the network.

Your want to implement a fault tolerant topology as you connect routers on your wide area network. Which topology meets your needs?

Mesh topology.

What is a firewall?

A router that filters packets or other network communications.

Which topology connects all devices to a trunk cable?

Bus Topology.

What is a full mesh topology?

Every device has a point-to-point connection with every other device. This provides full redundancy, but it is expensive and impractical.

What is a bus topology?

Has a single point of failure. If there is a break in the network media, the network becomes unavailable.

What type of logical topology does a physical star topology uses?

Logical bus topology.

What device a ring topology uses?

MSAU.

You have implemented an ad hoc wireless network that doesn't employ a wireless access point. Every wireless network card can communicate directly with any other wireless network card on the network. What type of physical network topology has been implemented in this type of network?

Mesh topology.

Your manager has asked you to implement a network infrastructure that will accommodate failed connections. Which of the following network topologies provides redundancy for a failed link?

Mesh topology.