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CCNA Cisco Certified Network Associate Study Guide - FTP Server

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Summary<br />

Key Terms<br />

Summary 313<br />

When you enable pruning on a VTP server, you enable it for the entire<br />

domain. By default, VLANs 2–1005 are pruning-eligible. VLAN 1 can never<br />

prune because it is an administrative VLAN.<br />

This chapter introduced Virtual LANs and described how <strong>Cisco</strong><br />

switches can use them. VLANs break up broadcast domains in a switched<br />

internetwork. This is important because layer-2 switches only break up collision<br />

domains and, by default, all switches make up one large broadcast<br />

domain. This chapter also described trunked VLANs across a FastEthernet<br />

link. Trunking is important in a network with multiple switches running several<br />

VLANs. We also discussed Virtual Trunk Protocol (VTP), which really<br />

has nothing to do with trunking. What it does is send VLAN information<br />

down a trunked link, but the trunk configuration is not part of VTP.<br />

Be sure you’re familiar with the following terms before taking the exam.<br />

access link<br />

broadcast domain<br />

collision domain<br />

dynamic VLAN<br />

flat network<br />

ISL routing<br />

static VLAN<br />

switch fabric<br />

trunk link<br />

Virtual LAN<br />

VLAN Trunk Protocol (VTP)

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