comptia security certification study guide exam sy0301 pdf

... makes a crossover cable Although cabling standards at this depth are not covered in the Network exam, it’s still very important to know as a network technician You will learn about the cabling ... adapter is a way to test the ports on a system without having to connect to an external device For example, you can use a serial loopback adapter to verify that a transmitted signal is leaving your ... a cable tester, you would check the segments of cable that are suspected to have a problem For example, if you were performing a test on a network that uses 10Base2, you might separate the cable

Ngày tải lên: 04/07/2014, 13:20

... resources and transmit data across the switch SuMMAry oF ExAM oBJECTIvES Switches can provide an array of features that can enhance the security and functionality of a network At its most basic ... switches available in the marketplace that offers enhanced features These elements bring improved security, services, and capabilities that were unseen in basic switches that were available in previous ... means that no modification needs to be made to the existing cabling of a network to implement PoE Exam warning Switches operate at many layers of the OSI model They work at the data link layer

Ngày tải lên: 04/07/2014, 13:21

... examples so that you can fully understand both the concepts and the practical applications of subnetting Work through the examples in this chapter and make up some of your own If you have a study ... Internet A good example of this is that many computers Exam warning Using VLSMs on WAN links on your network is very common You don’t need to know how to do this for the Network+ exam, but you ... randomly select another address from that range Exam warning You must know the private address ranges as well as the APIPA IP address range for the Network+ exam Also, do not forget the reserved loopback

Ngày tải lên: 04/07/2014, 13:21

... coming from This can go on forever in an endless loop, hence the term looping See Figure 12.5 for an example of how this can happen In the scenario shown in Figure 12.5, if Computer B sends a message ... to address data packets from the sending to the receiving computer As you’ve worked through this guide, you’ve learned that routing takes place at the network layer, and routing is all about recognizing ... system (which is formally called PSTN or Public Switched Telephone Network) is the most familiar example of switched-circuit communication An end-to-end communication link is established when

Ngày tải lên: 04/07/2014, 13:21

... con-nect to the mail.example.com server, you would type telnet mail example.com 25 at the command prompt If this is successful, you’ll see something like this: 220 mail.example.com Microsoft ... the example.com e-mail server, try sending a test message to jenny@example.com rather than joe@mycompany.com) Use the following syntax to specify the recipient’s e-mail address: RCPT TO: jenny@example.com ... window Begin by typing the following (substitute the domain of a valid e-mail address for example.com): HELO example.com If this command works, you’ll see the following: 4 250 OK Next, specify the

Ngày tải lên: 04/07/2014, 13:21

... Data Exchange: Sublayer 802.10g Standard for Security Labeling Within Secure Data Exchange 802.10h Supplement to Interoperable LM Security: PICS Proforma/Security Data 802.11 Standard for WLAN Standard ... developed for networking, the Network+ exam only expects you to know the basic funda-mentals of a select few The standards that will be referenced in the exam and that we’ll discuss in this appendix, ... have no overlap of coverage area. Exam warning IEEE standards are an important part of networking, and chances are that you’ll see questions on them during the exam You’ll be tested on the main

Ngày tải lên: 04/07/2014, 13:21

... vs Quantitative Risk Assessment Management’s Response Certification and Accreditation Trang 11Certification and Accreditation GuidelinesCertification and Accreditation Process The Key Concept: ... subcomponents: Trang 27Cryptosecurity: Cryptosecurity is the component that ensures thatcryptosystems are sound and being used properly Transmission Security: Transmission security measures protect ... Options from Windows Local Security Settings Access Control Lists Trang 19Access ControlAccess Control Types Bell–LaPadula Security Model Acceptable Use Policy Additional Security Policies Human

Ngày tải lên: 10/09/2021, 12:50

... Sarbanes-Oxley Act of 2002 As an organization that has computer networks and recognizes information security as an important role in how to develop your networks, you must be aware of ISO/IEC 27002:2005 ... not IPX/SPX configurations Answer D is incorrect because ipxconfig/all is not a valid command Examine the tracert output shown in Figure 11.24 What is a 11 possible explanation for the “Request

Ngày tải lên: 04/07/2014, 13:21

... printing protocol (IPP), 268 Internet protocol (IP) See IP Internet protocol security (IPsec), 193, 416 Internet security systems (ISSs), 391 Internet service providers (ISPs), 107 Internetwork, ... Telegraph (CCITT), 111 Content filtering, 404 Content switches, 156–157, 163 Convergence, 99, 107 of security, 125 Copper cabling, 63–64 preparing, 64–66 Credit card adapters, 108 Crossover cable, ... 204–206, 209–211, 214 Half-duplex, 63, 90 transmission, 609 Hardware, 3, 9–11 address See MAC address security devices, 386–405, 467–468 Hardware compatibility list (HCL), 118 Hardware loopback adapter,

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 ... 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 guides ... Syngress Publishing, Inc Elsevier, Inc 30 Corporate Drive Burlington, MA 01803 CompTIA Network+ Certification Study Guide Copyright © 2009 by Elsevier, Inc All rights reserved Printed in the United

Ngày tải lên: 04/07/2014, 13:20

... years of experience will have found a few shortcuts and may have gotten lazy in terms of security For example, the user may use easy-to-remember passwords that are easy to guess In such a case, ... such as installing unapproved software or accessing restricted data It is also important to setup security on a network so users can only access what they need to perform their job This minimizes ... an environment with a trusting atmosphere, accidents happen and problems arise Setting up proper security can prevent avoidable incidents from occuring. Trang 2first binary computer Zuse continued

Ngày tải lên: 04/07/2014, 13:20

... network and will affect a wide variety of elements including security, media, and other features that make up your network as a whole ExAM oBJECTIvES FAST TrACK what Is a Network? A computer network ... 15 Trang 10ExAM oBJECTIvES IN ThIS ChApTEr INTroduCTIoN In this chapter, we’ll take a look at what you will need to know about cable connections and termination for the Network exam When working ... which the IEEE defines as being 50 km or less in diameter Trang 3ChApTEr 1: Network Fundamentals 38 ExAM oBJECTIvES FrEquENTly ASKEd quESTIoNS I am creating a home network that consists of one computer

Ngày tải lên: 04/07/2014, 13:20

... costly. Remember that physical security is important and that in high security areas, more drastic and expen- sive methods are also available to add new levels of security, if needed, such as ... used for con- necting locations of a network that are separated by significant distance. Security Issues The security of cabling is another important issue that should be considered before installing ... different types of cabling to meet the security needs outlined in policies or regulations. In other situations, such as a small office home office (SOHO), security may be a minor issue. Because

Ngày tải lên: 04/07/2014, 13:20

... voice connection, although they can be used for data Exam warning You will use the term cross connect often while working as a technician For the exam it’s important to remember this term The term ... Mbps) 550 m (MMF) or up to 10 km (SMF) 1000BaseCX Fiber-optic 1 Gbps (1000 Mbps) 100 m Exam warning For the exam, you will have to memorize the characteristics of the various types of media Questions ... terminate your router or switching device to get access to the lease line companies circuit For example, you could connect a RJ-45- or RJ-48-based connector into a T1 smart jack and then connect

Ngày tải lên: 04/07/2014, 13:20

... router that examines packets based upon filters that are set up at the network and transport layers You can block incoming or outgoing transfers based on a TCP/IP address or other rules For example, ... Internet they should provide additional security by encrypting the data using a VPN When a VPN is implemented properly, it provides improved wide-area security, reduces costs associated with ... categories of firewalls: packet level, application level, and circuit level Each uses a different security approach, thus providing different advantages and disadvantages One additional feature

Ngày tải lên: 04/07/2014, 13:21

... D 10 A 11 C 12 A 13 D 14 B 15 Trang 5This page intentionally left blankTrang 6ChApTEr 5 ExAM oBJECTIvES IN ThIS ChApTEr rAdIo FrEquENCy ANd ANTENNA BEhAvIorS ANd CoNFIGurING wINdowS ClIENT ... always offer the most optimum path between existing local area network (LAN) resources and new users Security concerns also have to be addressed if a common wiring closet or riser is to be shared with ... AP, when properly placed, can be used to support multiple user environments at the same time An example of this in a wireless LAN configuration would consist of locating a wireless AP on the inner

Ngày tải lên: 04/07/2014, 13:21

... the most popular and must be understood to pass the wireless objectives on the Network certification exam overview of wireless Communication in a wireless Network Wireless networks, like their ... sequence spread spectrum ■ ■ Exam warning Make sure that you pay close attention to the next couple of sections in this chapter, as they directly relate to the exam Most of what you have learned ... elliptical region extending outward from the visual LOS, can cause signal loss through the methods we examine previously such as reflection, refraction, and scattering FIGurE 5.4 LOS versus the Fresnel

Ngày tải lên: 04/07/2014, 13:21

... Transport Layer Security Wireless Transport Layer Security (WTLS) is an attempt by the WAP Forum to introduce a measure of security into WAP The WTLS Protocol is based on the Transport Layer Security ... management, control, Exam warning The following information must be mastered for the Network exam; you need to know the 802.11 standards, the speeds, operation, and so on for the Network exam Make ... frequency 5 GHz waves attenuate more quickly over distance Exam warning Remember that IEEE 802.11b functions up to 11 Mbps in the ISM band. Exam warning Remember that IEEE 802.11a functions up to

Ngày tải lên: 04/07/2014, 13:21

... choose their security solutions The latest and greatest security technology can be installed and 3 should still work with the existing infrastructure You can respond quickly to security issues ... Wireless provides convenience and mobility, but also poses massive security challenges for network admin-istrators, engineers, and security administrators Secu-rity for 802.11 networks can be broken ... actually considered slightly weaker than open authentication Test day Tip Although the Network exam does not cover the authentication process in great detail, it is important to remember the

Ngày tải lên: 04/07/2014, 13:21

... techniques to begin an attack on the network Note Keep in mind that the most popular wireless network security scanning tools are Ethe-real, NetStumbler, AiroPeek, and Kismet This will help you to analyze ... wireless transmis-sion, has highlighted the art of spoofing as a real threat to wireless network security Some well-publicized weaknesses in user authentication using WEP have made authentication ... attacks involves adding several additional components to the wireless network The following are examples of measures that can be taken: Using an external authentication source such as RADIUS or

Ngày tải lên: 04/07/2014, 13:21