CCENT/CCNA ICND1 Official Exam Certification Guide (CCENT Exam 640-822 and CCNA Exam 640-802), 2nd Edition
CCENT/CCNA ICND1 Official Exam Certification Guide
Second Edition
* Master ICND1 640-822 exam topics with the official study guide
* Assess your knowledge with chapter-opening quizzes
* Review key concepts with Exam Preparation Tasks
* Practice with hundreds of exam questions on the CD-ROM
Wendell Odom, CCIE® No. 1624
CCENT/CCNA ICND1 Official Exam Certification Guide, Second Edition, is a best of breed Cisco® exam study guide that focuses specifically on the objectives for the CCENT™ and CCNA® ICND1 exam. This fully updated edition presents complete reviews and a more challenging and realistic exam preparation experience.
Senior instructor and best-selling author Wendell Odom shares preparation hints and test-taking tips, helping you identify areas of weakness and improve both your conceptual knowledge and hands-on skills. The material is presented in a concise manner, focused on increasing your understanding of exam topics and preparing you for the numerous challenges the exams present.
CCENT/CCNA ICND1 Official Exam Certification Guide, Second Edition, presents you with an organized test preparation routine through the use of proven series elements and techniques. “Do I Know This Already?” quizzes open each chapter and allow you to decide how much time you need to spend on each section. Chapter-ending Exam Preparation Tasks sections help you drill on key concepts you must know thoroughly and help increase your speed in answering questions, a difficult hurdle many exam candidates face on the new exams. A Final Preparation chapter guides you through tools and resources to help you craft your final study plan. Special troubleshooting sections help you master the complex scenarios you will face on the exam.
The companion CD-ROM contains a powerful testing engine that allows you to focus on individual topic areas or take complete, timed exams. The assessment engine also tracks your performance and provides feedback on a chapter-by-chapter basis, presenting question-by-question remediation to the text. The bonus DVD contains more than
60 minutes of personal video mentoring from the author focused mainly on bringing difficult subnetting concepts to life.
Well-regarded for its level of detail, assessment features, and challenging practice questions, this book provides you with more detailed information and more realistic practice exercises than any other CCNA study guide, enabling you to succeed on the exam the first time.
CCENT/CCNA ICND1 Official Exam Certification Guide, Second Edition, is part of a recommended learning path from Cisco that includes simulation and hands-on training from authorized Cisco Learning Partners and self-study products from Cisco Press. To find out more about instructor-led training, e-learning, and hands-on instruction offered by authorized Cisco Learning Partners worldwide, please visit www.cisco.com/go/authorizedtraining.
Wendell Odom, CCIE® No. 1624, has been in the networking industry since 1981. He currently teaches QoS, MPLS, and CCNA courses for Skyline Advanced Technology Services (www.skyline-ats.com). Wendell has worked as a network engineer, consultant, systems engineer, and instructor and course developer, and has taught authorized Cisco courses for the majority of the last 14 years.
The official study guide helps you master all the topics on the CCENT and CCNA ICND1 exam, including
* TCP/IP and OSI networking models
* Operating Cisco routers and LAN switches
* Ethernet switch configuration and troubleshooting
* Wireless LANs
* IP addressing and subnetting
* Routing protocols
* Router configuration and troubleshooting
* Network Security
* WAN concepts and configuration
Companion CD-ROM
The CD-ROM contains an electronic copy of the book and 200 practice questions for the ICND1 and full CCNA exams, including simulation and testlet questions, all available in study mode and test mode.
BONUS DVD
The DVD contains more than 60 minutes of personal instruction from the author.
This volume is part of the Exam Certification Guide Series from Cisco Press®. Books in this series provide officially developed exam preparation materials that offer assessment, review, and practice to help Cisco Career Certification candidates identify weaknesses, concentrate their study efforts, and enhance their confidence as exam day nears.
Category: Cisco Press–Cisco Certification
Covers: CCENT and CCNA ICND1 Exam 640-822
This chapter covers the following subjects:
Wireless LAN Concepts: This section explains the basic theory behind transmitting data with radio waves using wireless LAN standards.
Deploying WLANs: This section lists a set of generic steps for installing small WLANs, with no product-specific details.
Wireless LAN Security: This section explains the various WLAN security options that have progressed through the years.
So far, this book has dedicated a lot of attention to (wired) Ethernet LANs. Although they are vitally important, another style of LAN, wireless LANs (WLAN), fills a particularly important role in providing network access to end users. In particular, WLANs allow the user to communicate over the network without requiring any cables, enabling mobile devices while removing the expense and effort involved in running cables. This chapter examines the basic concepts, standards, installation, and security options for some of the most common WLAN technologies today.
As a reminder if you’re following the optional reading plan listed in the Introduction to this book, you will be moving on to Chapter 1 of the CCNA ICND2 Official Exam Certification Guide following this chapter.
“Do I Know This Already?” Quiz
The “Do I Know This Already?” quiz allows you to assess whether you should read the entire chapter. If you miss no more than one of these nine self-assessment questions, you might want to move ahead to the “Exam Preparation Tasks” section. Table 11-1 lists the major headings in this chapter and the “Do I Know This Already?” quiz questions covering the material in those sections. This helps you assess your knowledge of these specific areas. The answers to the “Do I Know This Already?” quiz appear in Appendix A.
Table 11-1. “Do I Know This Already?” Foundation Topics Section-to-Question Mapping
Foundation Topics Section
Questions
Wireless LAN Concepts
1–4
Deploying WLANs
5–7
Wireless LAN Security
8, 9
1. Which of the following IEEE wireless LAN standards uses only the U-NII band of frequencies (around 5.4 GHz)?
1. 802.11a
2. 802.11b
3. 802.11g
4. 802.11i
2. Which of the following answers is the correct maximum speed at which two IEEE WLAN devices can send data with a particular standard?
1. 802.11b, using OFDM, at 54 Mbps
2. 802.11g, using OFDM, at 54 Mbps
3. 802.11a, using DSSS, at 54 Mbps
4. 802.11a, using DSSS, at 11 Mbps
3. Which of the following lists the nonoverlapping channels when using 802.1b DSSS in the U.S.?
1. 1, 2, 3
2. 1, 5, 9
3. 1, 6, 11
4. a, b, g
5. 22, 33, 44
4. Which of the following terms refers to a WLAN mode that allows a laptop to roam between different access points?
1. ESS
2. BSS
3. IBSS
4. None of the other answers are correct.
5. When configuring a wireless access point, which of the following are typical configuration choices?
1. SSID
2. The speed to use
3. The wireless standard to use
4. The size of the desired coverage area
6. Which of the following is true about an ESS’s connections to the wired Ethernet LAN?
1. The AP connects to the Ethernet switch using a crossover cable.
2. The various APs in the same WLAN need to be assigned to the same VLAN by the Ethernet switches.
3. The APs must have an IP address configured to forward traffic.
4. The APs using mixed 802.11g mode must connect via a Fast Ethernet or faster connection to an Ethernet switch.
7. Which of the following are not common reasons why a newly installed WLAN does not allow a client to connect through the WLAN into the wired infrastructure?
1. The AP is installed on top of a metal filing cabinet.
2. The client is near a fast-food restaurant’s microwave oven.
3. The client is sitting on top of a big bundle of currently used Cat5 Ethernet cables.
4. The AP was configured to use DSSS channel 1 instead of the default channel 6, and no one configured the client to use channel 6.
8. Which of the following WLAN security standards refer to the IEEE standard?
1. WPA
2. WPA2
3. WEP
4. 802.11i
9. Which of the following security features were not in the original WEP security standard but are now in the WPA2 security standard?
1. Dynamic key exchange
2. Preshared Keys (PSK)
3. 802.1x authentication
4. AES encryption
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