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Click to edit Master subtitle style. Chapter 1:Introduction to Networks. Chapter 1: Introduction to Networks. The Following CompTIA Network+ Exam Objectives Are Covered in This Chapter: 1.6 Differentiate between common network topologies • Mesh o Partial o Full • Bus • Ring • Star
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Click to edit Master subtitle style Chapter 1:Introduction to Networks
Chapter 1: Introduction to Networks The Following CompTIA Network+ Exam Objectives Are Covered in This Chapter: 1.6 Differentiate between common network topologies • • Mesh • o Partial • o Full • • Bus • • Ring • • Star • • Hybrid • • Point-to-point • • Point-to-multipoint • • Client-server • • Peer-to-peer 2
What is a Network? Printer Host Host In the computer world, the term network means two or more connected computers that can share resources like data and applications, office machines, an Internet connection, or some combination of these. 3
What is a LAN? A local area network (LAN) is usually restricted to spanning a particular geographic location Servers Servers Switch Hub Marketing Sales Printer 4
Let’s connect these LAN’s together… Servers Servers Router Marketing Sales 5
Hosts/Workstations communicate to a Server Secure serverroom Servers Servers Switch Hub Marketing Sales The term host is used to describe pretty much anything that takes an IP address. You also see that the hosts can access the servers across the network—pretty much the general idea of having a network. Hosts 6
Wide Area Networks Servers Branch1 Corp Internet Branch2 • Usually need a router port or ports. • Span larger geographic areas and/or can link disparate locations. • Are usually slower. • Can choose when and how long we connect to a WAN. • Can utilize either private or public data transport media such as phone lines. 7
MPLS Branch Offices Corporate Office Each router assigns labels to data whenthe data heads toward the MPLS cloud MPLS NetworkLogical ConnectionsBetween Sites MPLS is a switching mechanism that imposes labels (numbers) to data and then uses those labels to forward data when the data arrives at the MPLS network 8
Peer-to-Peer Networking Pluto Millie Hub Mickey Hub Louie 9
Client Server Networks Pluto Millie Hub Mickey Hub Louie Server 10
Physical Topologies Here is a list of the various topologies you’re most likely to run in to these days: • Bus • Star • Ring • Mesh • Point-to-point • Point-to-multipoint • Hybrid 11
A Physical Bus Topology Laser Printer Server S1 12
Physical Star Topology Hub 13
Point-to-point Topologies Serial Connection, Like a T1 between Routers Direct Ethernet or Wireless Cable Direct to Hub or Switch Hub 16
Point-to-Multipoint Topology BranchOffices CorporateOffice 17
Hybrid Topology Hub Physical Star, Logical Bus 19
Backbones and Segments Servers Backbone Segments Sales Marketing 20
Summary • Summary • Exam Essentials Section • Written Labs • Review Questions 21