Todd Lammle's CCNA fast pass PDF

By Todd Lammle

ISBN-10: 0470185716

ISBN-13: 9780470185711

The excellent CCNA education and evaluation Tool

From the writer of Sybex's best-selling CCNA: Cisco qualified community affiliate examine Guide comes the streamlined device you must hone in on serious CCNA details: CCNA quickly Pass. The enclosed CD enables you to perform, perform, perform so that you can technique the examination with confidence.

Coverage includes:

  • Designing internetworks utilizing Cisco technology
  • Developing an entry List
  • Evaluating TCP/IP communique process
  • Configuring routers and switches
  • Configuring IP addresses, subnet mask, and gateway addresses
  • Performing LAN, VLAN, and WAN troubleshooting
  • Understanding ideas for packet control

Note:CD-ROM/DVD and different supplementary fabrics are usually not integrated as a part of booklet file.

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Extra resources for CCNA fast pass

Example text

Remember that the OSI/DoD model is a layered approach. Functions are divided into layers, and the layers are bound together. This allows layers to operate transparently to each other, that is, changes in one layer should not impact other layers. 6 Describe the impact of applications (Voice over IP and Video over IP) on a network The main purpose of the Host-to-Host layer is to shield the upper-layer applications from the complexities of the network. ” The following sections describe the two protocols at this layer: Transmission Control Protocol (TCP) User Datagram Protocol (UDP) By understanding how TCP and UDP work, you can interpret the impact of applications on networks when using Voice and Video Over IP.

At the same time, a different device tries to transmit, leading to a collision, after which both devices must retransmit, one at a time. Not very efficient! This situation is typically found in a hub environment where each host segment connects to a hub that represents only one collision domain and only one broadcast domain. By contrast, each and every port on a switch represents its own collision domain. Switches create separate collision domains but a single broadcast domain. Routers provide a separate broadcast domain for each interface.

It allows easier administration and works well in small to even very large network environments. 5 Describe the purpose and basic operation of the protocols in the OSI and TCP models When networks first came into being, computers could typically communicate only with computers from the same manufacturer. For example, companies ran either a complete DECnet solution or an IBM solution—not both together. In the late 1970s, the Open Systems Interconnection (OSI) reference model was created by the International Organization for Standardization (ISO) to break this barrier.

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CCNA fast pass by Todd Lammle

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