CompTIA Network+ Certification Study Guide part 26 potx

... this chapter, we look at the networking models that provide guidelines for vendors of networking products, including the early Depart- ment of Defense (DoD) model as well as the International ... all ports, as a physical layer hub does. Bridges provide a way to segment a network into two parts and filter traffic by building tables that define which computers are located on which side ......

Ngày tải lên: 04/07/2014, 13:21

... authentication B. Port mirroring C. VLAN D. Trunking You want to have computers in different buildings to be part of the 12. same broadcast domain, so that when a computer sends a broad- cast message, all ... when they leave to a new facility or area of a building. Cabling installations are considered part of the cost of the move and are essentially tossed out. With a wireless netwo...

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... with one notable exception. CHAPTER 6: The OSI Model and Networking Protocols 280 There are two parts to the data link layer: the LLC and the MAC sublayers. TCP/IP does not implement the LLC ... and receive data on a computer network. This logical communication structure is the complicated part, and what we will be primarily learning about in this chapter. The Network exam calls for

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... into disclosing it, to high-tech monitor- ing of communications between parties to intercept the key as it is passed between parties. However the code is acquired, once it is in a nontrusted Network ... Auditing, and Accounting.” The second abbreviation requiring clarification is CIA. For purposes of the Network+ exam, CIA is defined as “confidentiality, integrity, and availability.” Other...

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... achieve CHAPTER 9: Security Standards and Services 436 party’s hands, it can be used to falsely authenticate and identify someone as a valid party, forging false communications or using the user’s ... control of them. Tokens provide an extremely high level of authentication because of the multiple parts they use to verify the identity of the user. Token technology is currently regarded a...

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... as part of the policy. Answer B is incorrect because this type of written policy is not part of the authorization process. In addition, authorization is not included in the acronym AAA per CompTIA s ... access resources, it is considered part of access control. Incorrect answers and explanations: Answer A is incorrect because this type of written policy is not part of the authent...

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... 576–577 DHCP, 269 –270 DNS, 12, 273–274 FTP, 272–273 HTTP, 271–272 IMAP, 271 IPP, 268 NetBT, 265 266 NNTP, 272 NTP, 274 POP, 270–271 RIP, 274 SMB, 267 268 SMTP, 270 SNMP, 274–275 Telnet, 269 WINS, 266 267 WinSock, ... 429 protecting, 212 Department of defense (DoD) model, 257 265 , 277–278 advantages of, 576–577 application layer of, 264 265 host-to-host transport layer, 264 I...

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...

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... 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 ... 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 be standalon...

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... to a friendly domain name such as microsoft.com. In 1984, DNS became part of ARPANet, and would eventually play a major part resolving domain names on the Internet. Also during the mid-1980s, ... them from completing a patent on their computer, the computer was dismantled when the physics department needed storage space that was being used by the machine. The distinction of being first...

Ngày tải lên: 04/07/2014, 13:20