cwna certified wireless network administrator official study guide ebook

... design model is where users attach to the network Wireless network devices are most generally installed in this capacity There are times when wireless networks may be used in a distribution role, ... wired backbone Wireless networks are meant for mobile access rather than server room connectivity 3 A, B, D Cabling a facility is a time-consuming and expensive task Wireless networks can quickly ... Review Questions 1 A The most alluring feature of a wireless network is the freedom to move about while remaining connected to the network Wired networks cannot offer this feature 2 D Generally

Ngày tải lên: 14/08/2014, 14:20

... Trang 11an access point or wireless bridge Below are some criteria to be considered in choosing the proper cables for your wireless network Cables introduce loss into a wireless LAN, so make sure ... important as 5 Ghz wireless LANs become more and more common Some connectors are rated only as high as 3 GHz, which is fine for use with 2.4 GHz wireless LANs, but will not work for 5 GHz wireless LANs ... the wireless LAN For example, if you are using only a 2.4 GHz wireless LAN, a splitter that is specified for use at up to 3 GHz would be best Impedance The impedance, usually 50 ohms in most wireless

Ngày tải lên: 14/08/2014, 14:20

... network performance Wireless LAN Frames vs Ethernet Frames Once a wireless client has joined a network, the client and the rest of the network will communicate by passing frames across the network, ... one type of wireless frame With 802.3 Ethernet frames, once chosen by the network administrator, the same frame type is used to send all data across the wire just as with wireless Wireless frames ... all wireless LAN products, regardless of manufacturer We will explain the difference between Ethernet and wireless LAN frames and how wireless LANs avoid collisions We’ll walk through how wireless

Ngày tải lên: 14/08/2014, 14:20

... understanding of channel use with wireless LANs is imperative for any good wireless LAN administrator As a wireless LAN consultant, you will undoubtedly Trang 8find many wireless networks that have many ... overhead on the network 17 B The near/far problem is one that is addressed by the access protocols used by wireless networks This problem is seen in both cellular and wireless LAN networks When ... want to be responsible for as a wireless LAN administrator is a network that does not allow the users to do their jobs or achieve the connections that they require An administrator's second option

Ngày tải lên: 14/08/2014, 14:20

... will ensure that the wireless network remains as safely guarded as the wired network Keep Sensitive Information Private Some items that should be known only by network administrators at the ... detect your network, then your network is not susceptible to this kind of attack It may be tempting for network administrators to always use the maximum power output settings on all wireless LAN ... point and the wireless network clients C Between the switch and the router on the wireless network segment D In place of a regular access point on the wireless LAN segment 17 Networks using the 802.1x

Ngày tải lên: 14/08/2014, 14:20

... weather causes disruption to wireless LANs However, you must be aware of, prepare and compensate for, these types of weather before the implementation of the wireless network Lifts and ladders could ... is very important if the user is to make productive use of the wireless LAN From the answers provided by the network manager or administrator, you will know to look for locations within the facility ... if any of the neighboring high-rises have wireless LANs FIGURE 11.17 Multi-tenant Office Buildings Proposed Wireless LAN for Client ABC Corp. 802.11b Wireless LAN Coverage Area Are there any

Ngày tải lên: 14/08/2014, 14:20

... Introduction This Official CWNA Study Guide is intended first to help prepare you to install, manage, and support wireless networks, and second to prepare you to take and pass the CWNA certification ... than the PLANET3 WIRELESS, INC client that is the original subscriber to this Study Guide is permitted only with the written and express consent of PLANET3 WIRELESS, INC This Study Guide shall be ... and Certification program, the CWNA certification picks up where other popular networking certification programs leave off: wireless LANs Your study of wireless networking will help you bring

Ngày tải lên: 14/08/2014, 14:20

... with an external VPN server VPN Server or Wireless Gateway L2 Connection L3 VPN Connection on the same wireless network The range of the wireless network will likely extend beyond the physical ... authentication It is important for the wireless network administrator to understand that neither Open System nor Shared Key authentication types are secure, and for this reason a wireless LAN security solution, ... a stronger, more flexible alternative is clear with wireless networks since more varied implementations abound with wireless than with wired networks Typically, user authentication is accomplished

Ngày tải lên: 14/08/2014, 14:21

... starting a wireless site survey Existing wireless networks One of the questions that must be asked during the interview process is to determine the scope of any existing wireless networks If a wireless ... unified wireless infrastructure Wireless control system enables easy location of RF equipment throughout the hospital N enhancing network reliabilityImproved management efficiency of the wireless network, ... Existing wired networks In addition to knowing of any existing wireless networks, it is also important to know about the wired network infrastructure Any existing documentation on the wired network

Ngày tải lên: 10/08/2014, 12:21

... Trang 1Study Guide Cisco Certified Network Associate 3.0 CCNA 3.0 Version 1 Trang 2CCNA FOUNDATIONS 4 OSI Model 4 Upper Layer 5 Lower Layers 5 Data Link Layer Tasks 6 Network Layer ... permits people to understand how internetwork works and it serves as a guideline or framework for creating and implementing network standards, devices, and internetworking schemes Some of the advantages ... the network to reach the desired destination The logical network address consists of two parts: one part to identify the network and the other to uniquely identify the host Routers work at the network

Ngày tải lên: 22/10/2013, 17:15

... MCSE STUDY GUIDE Designing a Network Infrastructure with Windows 2000 Exam 70-221 Edition 1 Congratulations!! You have purchased a Troy Technologies USA Study Guide. This study guide is ... it! Remember, average study time is 10 to 12 hours and then you are ready!!! GOOD LUCK! Guarantee If you use this study guide correctly and still fail the exam, send your official score notice ... Microsoft Certified System Engineer • Exam Cram, MCSE Windows 2000 Network: Exam 70-216 (Exam Cram) by Hank Carbeck, et al. Paperback (September 28, 2000) • MCSE Windows 2000 Accelerated Study Guide

Ngày tải lên: 21/12/2013, 04:19

... 181–182 Wireless DMZs (WDMZ), 224 Wireless encryption protocol (WEP), 461, 463 Wireless hub, 172 Wireless local area networks (WLANs), 173, 179, 185, 192, 221, 222, 224 Wireless media, 86 Wireless networks, ... communications, 5–14 logical networking topologies, 14–24 network types, 31–35 physical network models, 24–30 Network hijacking and modification, 213–214 protecting, 215 Network IDs, 299–305 class ... 302 Network intrusion detection system (NIDS) network design with, 389–392 vs. NIPS, 388–389 Network intrusion protection system (NIPS) network design with, 389–392 vs. NIDS, 388–389 Network

Ngày tải lên: 04/07/2014, 13:20

... Trang 2CompTIA Network+ Certification Study Guide Trang 3This page intentionally left blankTrang 4CompTIA Network+ Certification Study Guide Exam N10-004 2E Robert J Shimonski ... CompTIA Network+ certification study guide / Robert J Shimonski [et al.] — 2nd ed p cm Includes index ISBN 978-1-59749-429-8 (pbk : alk paper) 1 Computer networks—Examinations—Study guides ... behaviors and Characteristics ������175 Wireless Network Concepts ������������������������������������������������������179 Common exploits of Wireless Networks �������������������������������������200

Ngày tải lên: 04/07/2014, 13:20

... technical editor for Security+ Study Guide and DVD Training System, (ISBN: 978-1-931836-72-2, Syngress), lead author and technical editor for Network+ Study Guide & Practice Exams: Exam ... a network technician and to pass the CompTIA Network+ exam We cover network models such as centralized and decentralized, the differences between a local area network (LAN) and a wide area network ... the power of a network Wired to wireless, satellites in the sky to home PC networks allow two computers in your home to share the Internet at the same time This is all done through networking The

Ngày tải lên: 04/07/2014, 13:20

... decentralized? Centralized When a centralized network model is used, a network’s resources are centrally located and administered This approach allows network administrators to have better access to ... be sent and received over the network, and provides utilities for working over a network Although only a few educational institutions and the government were networked together through ARPANet, ... them over the network will take place As we approach 2010, it’s interesting to look back on the last decade of networking … how it has evolved and where we will wind up next loGICAl NETworKING TopoloGIES

Ngày tải lên: 04/07/2014, 13:20

... over the computer network, such network components aren’t readily accessible physically. As such, a network administrator must rely on people who are designated as system administrators in ... depth in Chapter 9. Virtual Local Area Network VLANs allow network administrators to divide the network by designat- ing certain ports as part of a logical network. Although several computers ... the servers of years past, making peer-to-peer networks a viable solution for smaller networks. In a peer-to-peer network, computers on the network act as equals, with each workstation providing

Ngày tải lên: 04/07/2014, 13:20

... dif-ferent network types The types of networks that could be created include: Local area network ■ ■ Wide area network ■ ■ Metropolitan area network ■ ■ Storage area network ■ ■ Personal area network ... more of any network topologies So, it’s easy to say that any network that isn’t purely configured as one type of topology is configured as some form of hybrid network wireless A wireless topology ... Another method of wireless networking uses infrared communications, which requires a direct line of site and close proximity for the communica-tion to work This type of wireless networking is similar

Ngày tải lên: 04/07/2014, 13:20

... Trang 1ChApTEr 1: Network Fundamentals 36 SuMMAry oF ExAM oBJECTIvES In this chapter, we discussed the fundamentals of networking, including what defines a network, and how networks came to be ... distributed throughout the network Trang 2A peer-to-peer network model has computers on a network acting ■ ■ as equals, and acting as both clients and servers of the network When one computer ... infor-mation The network is internetworked with a network belonging to a subsidiary of the company The subsidiary’s network uses Apple computers, and uses AppleTalk as a network protocol To access

Ngày tải lên: 04/07/2014, 13:20

... filtering capabilities allowing the administrator to control traffic across the wireless link. CWNA Study Guide © Copyright 2002 Planet3 Wireless, Inc. 83 Chapter 4 – Wireless LAN Infrastructure ... bridge CWNA Study Guide © Copyright 2002 Planet3 Wireless, Inc. Chapter 4 – Wireless LAN Infrastructure Devices 80 FIGURE 4.7 A point-to-point wireless bridge link Wireless Bridge Server W ir e d ... rate was increased to 10 Mbps. CWNA Study Guide © Copyright 2002 Planet3 Wireless, Inc. Chapter 4 – Wireless LAN Infrastructure Devices 82 FIGURE 4.9 A wireless bridge in repeater mode ...

Ngày tải lên: 14/08/2014, 14:20

... additional access points. CWNA Study Guide © Copyright 2002 Planet3 Wireless, Inc. CWNA Study Guide © Copyright 2002 Planet3 Wireless, Inc. Antennas and Accessories CWNA Exam Objectives ... for any CWNA Study Guide © Copyright 2002 Planet3 Wireless, Inc. 93 Chapter 4 – Wireless LAN Infrastructure Devices scale wireless LAN environments providing a multitude of manageable wireless ... Converter CWNA Study Guide © Copyright 2002 Planet3 Wireless, Inc. Chapter 4 – Wireless LAN Infrastructure Devices 102 20. D. A USB adapter connects a computer’s USB port to a wireless network...

Ngày tải lên: 14/08/2014, 14:20