Chapter 10 Study Guide

Chapter 10 Study Guide - SEMESTER 1 Chapter 10 Planning and...

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SEMESTER 1 Chapter 10 Planning and Cabling a Network V 4.0 10.1.1 What are routers primarily used for? Routers are the primary devices used to interconnect networks. What does each port on a router connect to? Each port on a router connects to a different network and routes packets between the networks. What two things can a router break up to improve overall network performance? Routers have the ability to break up broadcast domains and collision domains. 10.1.1.2 What does a hub do when it receives a signal? Regenerates it, and sends the signal over all ports What is the main problem with using a hub? Single collision domain. What are some reasons that hubs are still used today? Hubs are less expensive than switches. A hub is typically chosen as an intermediary device within a very small LAN, in a LAN that requires low throughput requirements, or when finances are limited What does a switch do when it receives a frame? A switch receives a frame and regenerates each bit of the frame on to the appropriate destination port. What is the advantage of using a switch vs. a hub? In general, switches are chosen for connecting devices to a LAN. Although a switch is more expensive than a hub, its enhanced performance and reliability make it cost effective. How can a switch increase performance on a LAN? A switch provides dedicated bandwidth on each port, which can increase LAN performance 10.1.2 What are some factors that need to be considered when selecting devices for a LAN? Cost Speed and Types of Ports/Interfaces Expandability Manageability Additional Features and Services 10.1.2.2 What determines the cost of a switch? The cost of a switch is determined by its capacity and features. What are the factors of a switch’s capacity? The switch capacity includes the number and types of ports available and the switching speed. What are other factors that affect the cost of the switch? Other factors that impact the cost are its network management capabilities, embedded security technologies, and optional advanced switching technologies. Why would the cost of purchasing more than one Using a simple "cost per port" calculation, it may appear initially that the best option is to
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switch sometimes be the better choice than one switch? deploy one large switch at a central location. However, this apparent cost savings may be offset by the expense from the longer cable lengths required to connect every device on the LAN to one switch. This option should be compared with the cost of deploying a number of smaller switches connected by a few long cables to a central switch. Describe the process of
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Chapter 10 Study Guide - SEMESTER 1 Chapter 10 Planning and...

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