By Glen E. Clarke
Prepare for Cisco's entry-level networking certification CCENT examination 640-822If you are getting ready for Cisco certification, your street begins with CCENT examination 640-822 ICND1. This quantity covers every thing you want to comprehend! you will study networking fundamentals and the way to paintings with Cisco units, routers, switches, and extra. With over six hundred pages, plus dozens of evaluate questions, this whole advisor may also help you're making the grade.Discover CCENT certification — discover what the certification contains and what to anticipate at the examNetworks and Cisco units — study networking fundamentals, all approximately ports, and the way to configure interfaces and prone similar to DHCP and NATData routing — discover static routing, dynamic routing protocols, and the way to manage the routing strategy with the routing tableBe ready — examine simple troubleshooting steps and instructions you should use on Cisco devicesCast a much broader internet — get to grips with community safeguard, defense top practices, and vast zone networks (WANs)Open the e-book and find:Basic proof of networkingIntroduction to TCP/IPHints for utilizing the Cisco IOSStep-by-step description of the routing processA advisor to simple configurationTroubleshooting adviceExam guidance for every topicAn exam-objective mapping tableDetailed examples of subnetting
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Indd 34 10/15/10 11:19 PM10/15/10 11:19 PM Accessing the Network with Access Methods 35 This section discusses the different access methods that different network environments use. This topic will help you understand how communication occurs on the network. The first — and probably most popular — access method to discuss is Carrier Sense Multiple Access/Collision Detection (CSMA/CD). Here is how CSMA/CD works: When a system wants to send data on the network, it first senses the wire to see if there is already data on the wire (see Figure 2-16) — if there is already data on the wire, it waits until the wire is free, but if the wire is free of traffic, the system goes ahead and sends the data.
Multiple-choice, multiple answer: With this type of question, you are asked a question and you need to choose multiple answers from the list of choices. indd 11 10/15/10 11:18 PM10/15/10 11:18 PM 12 What to Expect on the CCENT Exam ✦ Drag-and-drop: These questions are a little more interactive and typically involve you dragging items from the left side of the screen and dropping them in the correct place on the right side of the screen. For example, you may be given a list of definitions on the right side of the screen and you need to drop the correct term onto the proper definition.
Switch Figure 2-1: Looking at a basic network setup. WorkstationB WorkstationA There are two major categories of networks — you can have a local area network (LAN), which is a network in a single location, or you can have a wide area network (WAN) that spans multiple locations. The following sections discuss LANs and WANs. Local area network The term that we use in the networking world for systems that are connected in a small network environment, such as a home network or an office network in a building, is local area network (LAN).
CCENT Certification All-In-One For Dummies by Glen E. Clarke