Quiz Chapter 11. You need a network that provides centralized authentication for your users. Which of thefollowing logical topologies should you use?A. VLANsB. Peer-to-peerC. Client/ServerD. Mesh Show
2. You need a topology that is scalable to use in your network. Which of the following will youinstall? 3. Which of the following physical topolgies has the least likelihood of having a collision? 4. In a physical-star topology, what happens when a workstation loses its physical connection toanother device? We have textbook solutions for you!The document you are viewing contains questions related to this textbook. Network+ Guide to Networks Dean/West Expert Verified C. That workstation and the device it’s connected to lose communication with the rest of thenetwork.D. No devices can communicate because there are now two unterminated network segments. What is Topology?Network topologies describe the methods in which all the elements of a network are mapped. The topology term refers to both the physical and logical layout of a network. In this network topology tutorial, we will explain:
Types of Networking TopologiesTwo main types of network topologies in computer networks are 1) Physical topology 2) Logical topology Physical topology:This type of network is an actual layout of the computer cables and other network devices Logical topology:Logical topology gives insight’s about network’s physical design. Different types of Physical Topologies are:
Let’s learn each topology in detail: Point to Point (P2P)Point-to-point topology is the easiest of all the network topologies. In this method, the network consists of a direct link between two computers. P2P Topology DiagramAdvantages:
Disadvantages:
Bus topology uses a single cable which connects all the included nodes. The main cable acts as a spine for the entire network. One of the computers in the network acts as the computer server. When it has two endpoints, it is known as a linear bus topology. Advantages:Here are pros/benefits of using a bus topology:
Disadvantages:Here are the cons/drawbacks of bus topology:
Ring TopologyRing Topology DiagramIn a ring network, every device has exactly two neighboring devices for communication purpose. It is called a ring topology as its formation is like a ring. In this topology, every computer is connected to another computer. Here, the last node is combined with a first one. This topology uses token to pass the information from one computer to another. In this topology, all the messages travel through a ring in the same direction. Advantages:Here are pros/benefits of ring topology:
Disadvantages:Here are drawbacks/cons of ring topology:
Star TopologyStar Topology DiagramIn the star topology, all the computers connect with the help of a hub. This cable is called a central node, and all other nodes are connected using this central node. It is most popular on LAN networks as they are inexpensive and easy to install. Advantages:Here are pros/benefits of start topology:
Disadvantages:Here are cons/drawbacks of using Star:
Mesh TopologyThe mesh topology has a unique network design in which each computer on the network connects to every other. It is develops a P2P (point-to-point) connection between all the devices of the network. It offers a high level of redundancy, so even if one network cable fails, still data has an alternative path to reach its destination. Types of Mesh Topology:
Advantages:Here, are pros/benefits of Mesh topology
Disadvantages:
Tree TopologyTree TopologyTree topologies have a root node, and all other nodes are connected which form a hierarchy. So it is also known as hierarchical topology. This topology integrates various star topologies together in a single bus, so it is known as a Star Bus topology. Tree topology is a very common network which is similar to a bus and star topology. Advantages:Here are pros/benefits of tree topology:
Disadvantages:Here are cons/drawback of tree topology:
Hybrid TopologyHybrid TopologyHybrid topology combines two or more topologies. You can see in the above architecture in such a manner that the resulting network does not exhibit one of the standard topologies. For example, as you can see in the above image that in an office in one department, Star and P2P topology is used. A hybrid topology is always produced when two different basic network topologies are connected. Advantages:Here, are advantages/pros using Hybrid topology:
Disadvantages:
How to select a Network Topology?Here are some important considerations for selecting the best topology to create a network in your organization:
Summary
Which topology is least likely to have data collisions?With ring topologies, the risk of packet collisions is very low due to the use of token-based protocols, which only allow one station to transmit data at a given time.
Does star topology have collision?Collisions do not occur in a star topology, because the central device manages traffic by using the carrier-sense multiple access with collision detection (CSMA/CD) protocol.
Which network topology does not suffer from the collision problem?In a token ring network, a special signal called the token, circulates the network. Devices can only communicate when they have the token. This means that there will be no collisions.
Does collision occur in bus topology?Bus Networks
If two or more computers transmit at exactly the same time a collision occurs. If a collision occurs the computer that was trying to send the data detects that the sending has failed and proceeds to try again at a different time.
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