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Planning A Microsoft Windows Server 2003 Network Chapter 03

Planning A Microsoft Windows Server 2003 Network Chapter 03...

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70-293: MCSE Guide to Planning a Microsoft Windows Server 2003 Network Chapter 3: Planning Network Data Flow
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70-293: MCSE Guide to Planning a Microsoft W 2 Objectives Describe the three types of network traffic Understand unique characteristics of Ethernet Use physical components of a network to control data flow Monitor network performance Optimize network settings Use network troubleshooting utilities
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70-293: MCSE Guide to Planning a Microsoft W 3 Types of Network Traffic Network traffic is defined as packets of data sent on the network Three types of IPv4 packets: Unicast Broadcast Multicast
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70-293: MCSE Guide to Planning a Microsoft W 4 Unicast Packets A unicast packet is addressed to a single computer The destination IP address in a unicast packet is a Class A, B, or C IP address This type of traffic can communicate on the Internet and perform file and printer sharing in the network
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70-293: MCSE Guide to Planning a Microsoft W 5 Broadcast Packets Local broadcasts are used by applications to announce status and ensure that all interested hosts are informed Broadcast packets are inefficient because they are processed by all hosts on a subnet On a busy host this may reduce performance levels
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70-293: MCSE Guide to Planning a Microsoft W 6 Activity 3-1: Analyzing a Broadcast The purpose of this activity is to view the contents of a broadcast packet
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70-293: MCSE Guide to Planning a Microsoft W 7 Multicast Packets Multicast packets are addressed to a group of computers using a Class D IP address Multicast packets are an improvement over broadcast packets because multicast packets are processed by all hosts up to only the Internet layer rather than up to the Application layer This reduces the processing load on busy hosts
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70-293: MCSE Guide to Planning a Microsoft W 8 Ethernet Ethernet is the most common network technology used for LAN connectivity Popularity of Ethernet is due to its high performance and low price Three important Ethernet concepts are: Collisions Collision domains Transmission modes
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70-293: MCSE Guide to Planning a Microsoft W 9 Collisions If two computers happen to transmit information on the network at the same time, then a collision results Ethernet uses Carrier Sense Multiple Access/Collision Detection (CSMA/CD) as the access method to determine which computer is allowed to send data on the network and when When a collision occurs, the two computers that are transmitting data stop and wait for a random period of time before resending
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70-293: MCSE Guide to Planning a Microsoft W 10 Transmission Modes A transmission mode is how data is sent on the network Ethernet networks are capable of transmitting at: Half-duplex mode can send data or receive data, but cannot do both at the same time Full-duplex mode can transmit and receive information at the same time
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70-293: MCSE Guide to Planning a Microsoft W 11 Activity 3-2: Viewing Ethernet Settings The purpose of this activity is to view various Ethernet settings
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