ccie routing switching exam certification guide

... dynamically built table, called a bridge table The bridge examines the bridging table to decide whether it should forward a frame For example, consider the simple network shown in Figure 9-3, ... turn on the power, and cable the devices to the switch—and everything works! So, if the CCNA INTRO exam wanted to test you about only things you have to do to a switch to get it working, you would ... chapter Of course, Cisco wants you to know how switches work Not only is that necessary for the CCNA exams, but it also helps you in a job as a network engineer So, in this chapter, you will learn

Ngày tải lên: 13/08/2014, 13:21

... network (WPAN) A wireless network covering a very small area. 462 CCNA Wireless Official Exam Certification Guide Trang 2workgroup bridge (WGB) A device that bridges traffic.Worldwide Interoperability ... 158-159 power save mode, 124 practice exam, activating, 432 practicing configurations, 434 preparing for CCNA Wireless exam, 431 Cisco Learning Network, 433 exam engine, 431, 435 suggested study ... electromagnetic field, 34 ELF (Extremely Low Frequency), 9 enclosed CD Cisco Learning Network, 433 exam engine, 431, 435 installing, 432 encoding, 12 EoIP (Ethernet over IP), 219 ERP (Extended Rate

Ngày tải lên: 04/07/2014, 18:20

... Street Indianapolis, IN 46240 CCNA Wireless Official Exam Certification Guide Brandon James Carroll Trang 3CCNA Wireless Official Exam Certification GuideBrandon James Carroll Copyright© 2009 Cisco ... official exam certification guide / Brandon James Carroll p cm ISBN 978-1-58720-211-7 (hbk : CD-ROM) 1 Wireless LANs Examinations Study guides 2 Electronic data processing personnel Certification ... Bridges 59 Repeaters 60 viii CCNA Wireless Official Exam Certification Guide Trang 10Outdoor Wireless Bridges 61 Outdoor Mesh Networks 62 Exam Preparation Tasks 64 Review All the Key Topics 64

Ngày tải lên: 04/07/2014, 18:20

... 215 The Layer 3 Roaming Process 216 xii CCNA Wireless Official Exam Certification Guide 00_1587202115_fm.qxd 9/29/08 2:42 PM Page xii Exam Preparation Tasks 221 Review All the Key Topics 221 Definition ... the Controller to the Defaults 398 xvi CCNA Wireless Official Exam Certification Guide 00_1587202115_fm.qxd 9/29/08 2:42 PM Page xvi Exam Preparation Tasks 400 Review All the Key Topics 400 Definition ... Adapters 307 Installing the ADU 308 Configuring a Profile 310 xiv CCNA Wireless Official Exam Certification Guide 00_1587202115_fm.qxd 9/29/08 2:42 PM Page xiv Connecting to Preferred Networks 311

Ngày tải lên: 04/07/2014, 18:20

... Wireless Official Exam Certification Guide 00_1587202115_fm.qxd 9/29/08 2:42 PM Page xxiv Table I-1 Exam Topics for 640-721 IUWNE Exam (continued) Book Part(s) Where Topic Is Covered Exam Topic Install ... enriching and useful part of your exam preparation. Erik Ullanderson Manager, Global Certifications Learning@Cisco May 2008 xx CCNA Wireless Official Exam Certification Guide 00_1587202115_fm.qxd 9/29/08 ... look at the current exam objectives for the CCNA Wireless exam listed on the Cisco website (http://www.cisco.com/certification). If you see areas shown in the certification exam outline that you

Ngày tải lên: 04/07/2014, 18:20

... different distances to overcome this For example, for a 2.4-GHz system, at 7 miles you need to have the anten-nas mounted at 45 to 50 feet Although this is just an example, the numbers are pretty close, ... in the real world Again, do not spend too much time on this in preparation for the CCNA wireless exam, because it is not a concept you will be tested on Received Signal Strength Indicator The Received ... Keep in mind that the measurement is vendor specific, so the scale that is used might vary For example, one vendor might use a scale of 0 to 100, whereas another might use a scale Trang 2Chapter

Ngày tải lên: 04/07/2014, 18:20

... issue to watch in WLANs is that you don’t exceed the power rules that the government sets forth For example, in the U.S., the Federal Communications Commission (FCC) man-dates radiated power levels ... not possible The solution of a WGB doesn’t work, because a WGB connects users who are wired An example is a worker at a warehouse who carries a barcode scan-ner or even a wireless Cisco IP Phone ... distribution network The overlap needs to be 50 percent for optimal performance Figure 4-7 shows an example A repeater is allowing a client to connect to the network when in fact the client would

Ngày tải lên: 04/07/2014, 18:20

... antenna, but by using vendor-designed antennas, you can be sure that you are within government guidelines for EIRP Other vendors use connectors such as the Subminiature version A (SMA) and its ... Antenna Ground Wire To RF Device Lug Nut Lockwasher Figure 5-26 Lightning Arrestor Key Topic Trang 10Exam Preparation Tasks Review All the Key Topics Review the most important topics from this chapter,

Ngày tải lên: 04/07/2014, 18:20

... to resend However, protection mechanisms are built in To understand how this protection works, examine Figure 6-1 Assume that initially 802.11b clients do not exist The default behavior of an ... the operator For this reason, understanding the EIRP maximum values will help keep you within the guidelines The ETSI, of course, has its own rules, as seen in Table 6-8 Table 6-6 The UNII Frequency ... 802.11n clients, you can expect to see about a 30 percent improvement, based on these features Trang 9Exam Preparation TasksReview All Key Concepts Review the most important topics from this chapter,

Ngày tải lên: 04/07/2014, 18:20

... mandatory For example, 24 Mbps might be mandatory, but an AP might also be capable of 54 Mbps A client must support 24 Mbps but is allowed to use the best rate possible, in this example 54 Mbps ... (CF-Poll) and acknowledges receipt of the client data (CF-ACK) Other variations exist, but from these examples you should have a decent understanding of PCF operation Power Save Mode and Frame Types ... variations, but this should give you a pretty good under-standing of how to manage a connection Trang 8Exam Preparation TasksReview All the Key Concepts Review the most important topics from this chapter,

Ngày tải lên: 04/07/2014, 18:20

... but the chassis has two power supply slots The controller code version used for the CCNA Wireless exam is version 5.x, and the AP runs the same version It’s actually a requirement that they run ... through SFP cables and two GPIO control cables The major benefits of this integration into the switching platform include the following: ■ Conservation of space Key Topic Trang 2Courtesy of ... This Already?” quiz first If you score 80 percent or higher, you may want to skip to the section “Exam Preparation Tasks.” If you score below 80 per-cent, you should spend the time reviewing the

Ngày tải lên: 04/07/2014, 18:20

... wired switching and routing infrastruc-ture to Host B When Host B receives the packet, it is likely to respond, so the reverse process is as follows: Step 1. The packet is delivered by the wired switching ... the following sequence occurs: Step 1. The packet is carried from Host B over the wired switching and routing net-work to the WLC, where an Ethernet frame arrives with the Host A MAC ad-dress ... network, typically adding an 802.1Q VLAN tag Step 5. The packet then travels through the wired switching and routing infrastructure to Host B After receiving the frame, Host B will likely reply When

Ngày tải lên: 04/07/2014, 18:20

... controller is down at a time ■ N + N:This design allows each controller to back up the other For example, AP-1 points to WLC1 as its primary and WLC2 as its secondary AP-2 points to WLC2 as its ... redundant design Each controller backs up the other, and an extra is designed as a backup Take the same example as N + N but add a third controller, WLC-BACKUP, that every AP points to as the tertiary ... site The big issue is that the controller is connected via a WAN link, so you must follow certain guidelines: ■ The link cannot be any slower than 128 kbps ■ Roundtrip latency cannot be more than

Ngày tải lên: 04/07/2014, 18:20

... used by routers The router examines all packets received as input on that inter-face to make sure that the source address and source interinter-face appear in the routing table and match the ... different mobility groups, but must remain inside the same mobility domain Con-sider the following examples Figure 12-4 shows a client transmitting data and moving from AP1 to AP2 These two APs are ... Note: The protocol used for tunneling is known as EoIP It’s beyond the scope of the CCNA Wireless exam, but you can find more information in RFC 3439 You should configure the same mobility anchors

Ngày tải lên: 04/07/2014, 18:20

... it is good to go Naming Access Points Still, you might want to do some tweaks to the network For example, suppose that you have two APs One AP is in the lobby, and the other is in the research ... your own deployment The term other AP in this case simply refers to the only other AP used in the example Step 8. Repeat Steps 5 through 7 to assign a different name and location for the Re-search_Lab ... you log in At first glance, it might seem like a simple overview, but it has much more than that Examine Figure 13-15, where you will notice the following functional areas of the Summary page:

Ngày tải lên: 04/07/2014, 18:20

... channels and ensure adequate coverage by shaping the coverage area As far as the CCNA Wireless exam is concerned, you should be familiar with the overall concept, but you do not need to understand ... presents a list of the designated rogue APs The key on this page is the number of detecting radios Examine Figure 13-22 Notice that 20 of 32 rogues are Trang 3Figure 13-21 Review Rogues from the ... controller is the means to the wired network This client is not a workgroup bridge As seen in other examples, you can hover your mouse over the blue arrow to the right for a list of options, including

Ngày tải lên: 04/07/2014, 18:20

... covered as part of the CCNA wireless certification ■ As of July 2005, simply archive the image to the AP to convert it to LWAPP The section that follows examines the IOS-to-LWAPP conversion Converting ... some time getting familiar with the options in the web in-terface; however, for the CCNA wireless exam, it is not as significant of a topic as the light-weight configurations Figure 14-5 Radio Configuration

Ngày tải lên: 04/07/2014, 18:20

... view the bootprocess In Example 15-1, notice that if you press the Esc key, you are presented with multiple boot options The normal selection is to run the primary image Example 15-1 Booting the ... Please enter your choice: Continuing with the boot process, Example 15-2 shows the tests that are performed as the device initializes Example 15-2 Tests During the Boot Process CISCO SYSTEMS Embedded ... Services: ok Starting FIPS Features: Not enabled Starting Fast Path Hardware Acceleration: ok Starting Switching Services: ok Starting QoS Services: ok Starting Policy Manager: ok Starting Data Transport

Ngày tải lên: 04/07/2014, 18:20