CompTIA Network+ Certification Study Guide part 36 docx

... included (as you’ll recall, the physical or HEAD OF THE CLASS… Network+ Exam is Focused on TCP/IP … Period. For those of you taking the Network+ exam, you will need to know TCP/IP in detail. It’s ... does not match the request, the ARP request is simply discarded. CHAPTER 7: TCP/IP and Routing 336 How Packets Travel from Network to Network Let’s look at how a data packet from one host...

Ngày tải lên: 04/07/2014, 13:21

... more immune to interference the signal becomes. If part of the transmis- sion is corrupted, the data can still be recovered from the remaining part of Note One megahertz represents 1 million cycles ... the MAC layer is particularly noteworthy and has significant consequences for the security of wireless net- works. This means that data at the higher levels of the OSI model, particu- lar...

Ngày tải lên: 04/07/2014, 13:21

... com- bined with the zip code is a unique combination that identifies a particular house or building just as an IP address identifies a particular host. Figure 7.3 illustrates this concept. Large networks ... Class E addresses, which are considered experimental at this time. In addition, there are several guidelines regarding allowable or legal addresses for network IDs and for host IDs. As...

Ngày tải lên: 04/07/2014, 13:21

... performing a security audit for a company to determine 3. their risk from various attack methods. As part of your audit, you work with one of the company’s employees to see what activities he performs ... various authentication methods. One of the methods being described uses a time-stamped ticket as part of its methodology. Which authentication method would match this description? A...

Ngày tải lên: 04/07/2014, 13:21

... [-h] dig [global-queryopt ] [query ] CHAPTER 11: Network Troubleshooting Tools 550 use a particular route. This is particularly useful if you’re creating multiple routes to the same network as a fault ... adapter: ifconfig lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 UP LOOPBACK RUNNING MTU:16 436 Metric:1 RX packets:306 errors:0 dropped:0 overruns:0 frame:0 TX packets:306...

Ngày tải lên: 04/07/2014, 13:21

... This chapter will help you to put together all of the concepts you’ve learned throughout this study guide, to help you use them in troubleshooting real-world issues that you might encounter on ... LAYER 614 INTRODUCTION Congratulations! You’ve made it almost all the way through the Network+ exam preparation guide. You’ve learned all about the physical and logical components that mak...

Ngày tải lên: 04/07/2014, 13:21

... information: Subnet Mask: 255.255.0.0 Default Gateway: 172.16.0.1 DNS Servers: 172.16.0.100 172.16.0.101 As part of a recent network redesign, you had to change the default gate- way used by your clients

Ngày tải lên: 04/07/2014, 13:21

... 358–359, 363 operating with packet switching, 359 360 , 363 PRI, 362 363 protocols and properties, 360 368 FDDI, 364 365 ISDN, 361 363 T/E carrier, 360 361 wireless, 372–373 X.25, 366 367 WIFI ... connectors, 79–81 Fiber distributed data interface (FDDI), 364 365 frame relay, 365 366 MPLS, 366 SONET, 367 368 X.25 network, 366 367 Fiber-optic cable, 48 File system...

Ngày tải lên: 04/07/2014, 13:20

... Data 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 ... Syngress Publishing, Inc. Elsevier, Inc. 30 Corporate Drive Burlington, MA 01803 CompTIA Network+ Certification Study Guide Copyright © 2009 by Elsevier, Inc. All rights rese...

Ngày tải lên: 04/07/2014, 13:20

... 978-1- 931 836- 57-9, Syngress), the technical editor for Security+ Study Guide and DVD Training System, (ISBN: 978-1-931 836- 72-2, Syngress), lead author and technical editor for Network+ Study Guide ... taking the Network+ exam. Doing so provided a method of shar- ing information and possibly opened avenues to accessing important resources. Computers are the same; they can b...

Ngày tải lên: 04/07/2014, 13:20