Details

CompTIA Network+ Review Guide


CompTIA Network+ Review Guide

Exam N10-007
4. Aufl.

von: Jon Buhagiar

21,99 €

Verlag: Sybex
Format: PDF
Veröffentl.: 10.04.2018
ISBN/EAN: 9781119432319
Sprache: englisch
Anzahl Seiten: 512

DRM-geschütztes eBook, Sie benötigen z.B. Adobe Digital Editions und eine Adobe ID zum Lesen.

Beschreibungen

Essential last-minute review aid for the updated CompTIA Network+ Exam N10-007 CompTIA Network+ Review Guide Exam N10-007, 4th Edition, is your ideal study companion for preparing for the CompTIA Network+ exam (N10-007). Organized by exam objectives, this is a focused, concise review guide that works hand-in-hand with any learning tool, including the Sybex CompTIA Network+ Study Guide, CompTIA Network+ Deluxe Study Guide, and CompTIA Network+ Practice Tests. The book is broken into 5 parts, each part corresponding to one of the 5 objective domain areas of the Network+ exam: Network Architecture; Network Operations; Network Security; Troubleshooting; and Industry Standards, Practices, and Network Theory. Readers will also be given access to the comprehensive online Sybex test bank, which includes two bonus practice tests, electronic flashcards, and a glossary of terms that you’ll need to know come exam day. CompTIA's Network+ certification covers advances in networking technology, and reflects changes in associated job tasks. The exam places greater emphasis on network implementation and support, and includes expanded coverage of wireless networking topics. This review guide gives you the opportunity to identify your level of knowledge while there's still time to study, and avoid exam-day surprises. Review network architecture and security Understand network operations and troubleshooting Gain insight into industry standards and best practices Get a firmer grasp of network theory fundamentals If you’re looking for a beginning, vendor-neutral networking certification, look no further than CompTIA Network+.
Introduction xxiv Chapter 1 Domain 1.0: Networking Concepts 1 1.1 Explain the purposes and uses of ports and protocols. 8 Protocols and Ports 8 Protocol Types 14 Exam Essentials 19 1.2 Explain devices, applications, protocols and services at their appropriate OSI layers. 20 Application Layer 21 Presentation Layer 22 Session Layer 22 Transport Layer 23 Network Layer 25 Data Link Layer 26 Physical Layer 29 Exam Essentials 29 1.3 Explain the concepts and characteristics of routing and switching. 30 Properties of Network Traffic 30 Segmentation and Interface Properties 35 Routing 48 IPv6 Concepts 56 Performance Concepts 60 NAT/PAT 63 Port Forwarding 66 Access Control List 67 Distributed Switching 68 Packet Switched vs. Circuit-Switched Networks 69 Software-Defined Networking 69 Exam Essentials 70 1.4 Given a scenario, configure the appropriate IP addressing components. 72 Private vs. public 72 Loopback and Reserved 73 Default Gateway 74 Virtual IP 74 Subnet Mask 75 Subnetting 76 Address Assignments 84 Exam Essentials 88 1.5 Compare and contrast the characteristics of network topologies, types, and technologies. 89 Wired Topologies 89 Wireless Topologies 94 Types 98 Technologies That Facilitate the Internet of Things (IoT) 99 Exam Essentials 102 1.6 Given a scenario, implement the appropriate wireless technologies and configurations. 103 802.11 Standards 103 Cellular 106 Frequencies 107 Speed and Distance Requirements 109 Channel Bandwidth 110 Channel Bonding 110 MIMO/MU-MIMO 111 Unidirectional/Omnidirectional 112 Site Surveys 113 Exam Essentials 114 1.7 Summarize cloud concepts and their purposes. 115 Types of Services 116 Cloud Delivery Models 117 Connectivity Methods 119 Security Implications/Considerations 119 Relationship between Local and Cloud Resources 120 Exam Essentials 120 1.8 Explain the functions of network services. 121 DNS 121 DHCP Service 129 NTP 134 IPAM 134 Exam Essentials 135 Review Questions 137 Chapter 2 Domain 2.0: Infrastructure 143 2.1 Given a scenario, deploy the appropriate cabling solution. 148 Media types 148 PVC vs. Plenum 152 Connector types 153 Transceivers 158 Characteristics of fiber transceivers 160 Termination points 161 Copper cabling standards 164 Copper termination standards 166 Ethernet deployment standards 169 Exam Essentials 170 2.2 Given a scenario, determine the appropriate placement of networking devices on a network and install/configure them. 171 Firewall 171 Routers 172 Switches 173 Hubs 173 Bridges 174 Modems 174 Wireless access point 175 Media Converters 175 Wireless range extender 175 VoIP endpoint 176 Exam Essentials 176 2.3 Explain the purposes and use cases for advanced networking devices. 176 Multilayer switch 177 Wireless controller 177 Load balancer 178 IDS and IPS 178 Proxy Servers 179 VPN concentrator 181 AAA/RADIUS server 181 UTM appliance 182 NGFW/Layer 7 firewall 182 VoIP PBX 183 VoIP gateway 184 Content filter 185 Exam Essentials 185 2.4 Explain the purposes of virtualization and network storage technologies. 186 Virtual networking components 186 Network storage types 189 Connection type 190 Jumbo Frames 193 Exam Essentials 194 2.5 Compare and contrast WAN technologies. 194 Service type 194 Transmission mediums 199 Characteristics of service 201 Termination 205 Exam Essentials 207 Review Questions 209 Chapter 3 Domain 3.0: Network Operations 215 3.1 Given a scenario, use appropriate documentation and diagrams to manage the network. 219 Diagram symbols 220 Standard operating procedures/work instructions 223 Logical vs. physical diagrams 224 Rack diagrams 226 Change management documentation 227 Wiring and port locations 228 IDF/MDF documentation 229 Labeling 229 Network configuration and performance baselines 230 Inventory management 231 Exam Essentials 232 3.2 Compare and contrast business continuity and disaster recovery concepts. 233 Availability concepts 234 Recovery 242 Exam Essentials 246 3.3 Explain common scanning, monitoring and patching processes and summarize their expected outputs. 247 Processes 247 Event management 252 SNMP monitors 253 Metrics 254 Exam Essentials 256 3.4 Given a scenario, use remote access methods. 257 VPN 257 RDP 261 SSH 262 VNC 262 Telnet 263 HTTPS/management URL 263 Remote file access 263 Out-of-band management 264 Exam Essentials 266 3.5 Identify policies and best practices. 267 Privileged user agreement 268 Password policy 268 On-boarding/off-boarding procedures 268 Licensing restrictions 269 International export controls 270 Data loss prevention 270 Remote access policies 270 Incident response policies 271 BYOD 271 AUP 272 NDA 272 System life cycle 272 Safety procedures and policies 273 Exam Essentials 274 Review Questions 276 Chapter 4 Domain 4.0: Network Security 281 4.1 Summarize the purposes of physical security devices. 285 Detection 285 Prevention 289 Exam Essentials 292 4.2 Explain authentication and access controls. 292 Authentication, authorization, and accounting 292 Multifactor authentication 296 Access control 297 Exam Essentials 303 4.3 Given a scenario, secure a basic wireless network. 304 WPA 304 WPA2 305 TKIP-RC4 305 CCMP-AES 305 Authentication and authorization 305 Geofencing 307 Exam Essentials 307 4.4 Summarize common networking attacks. 308 DoS 308 Social engineering 309 Insider threat 309 Logic bomb 309 Rogue access point 310 Evil twin 310 War-driving 310 Phishing 310 Ransomware 310 DNS poisoning 310 ARP poisoning 311 Spoofing 311 Deauthentication 311 Brute force 311 VLAN hopping 311 Man-in-the-middle 312 Exploits vs. vulnerabilities 312 Exam Essentials 312 4.5 Given a scenario, implement network device hardening. 313 Changing default credentials 313 Avoiding common passwords 313 Upgrading firmware 314 Patching and updates 314 File hashing 315 Disabling unnecessary services 315 Using secure protocols 316 Generating new keys 316 Disabling unused ports 317 Exam Essentials 317 4.6 Explain common mitigation techniques and their purposes. 318 Signature management 318 Device hardening 319 Change native VLAN 319 Switch port protection 319 Network segmentation 321 Privileged user account 323 File integrity monitoring 323 Role separation 323 Restricting access via ACLs 324 Honeypot/honeynet 325 Penetration testing 325 Exam Essentials 325 Review Questions 327 Chapter 5 Domain 5.0 Network Troubleshooting and Tools 331 5.1 Explain the network troubleshooting methodology. 335 Identify the problem 336 Establish a theory of probable cause 338 Test the theory to determine the cause 339 Establish a plan of action to resolve the problem and identify potential effects 340 Implement the solution or escalate as necessary 340 Verify full system functionality and, if applicable, implement preventive measures 341 Document findings, actions, and outcomes 341 Exam Essentials 341 5.2 Given a scenario, use the appropriate tool. 342 Hardware tools 342 Software tools 352 Exam Essentials 371 5.3 Given a scenario, troubleshoot common wired connectivity and performance issues. 372 Attenuation 372 Latency 373 Jitter 373 Crosstalk 373 EMI 374 Open/Short 374 Incorrect pin-out 374 Incorrect cable type 374 Bad port 375 Transceiver mismatch 375 TX/RX reverse 376 Duplex/speed mismatch 377 Damaged cables 377 Bent pins 377 Bottlenecks 378 VLAN mismatch 378 Network connection LED status indicators 378 Exam Essentials 379 5.4 Given a scenario, troubleshoot common wireless connectivity and performance issues. 380 Reflection 380 Refraction 381 Absorption 381 Latency 382 Jitter 382 Attenuation 382 Incorrect antenna type 383 Interference 383 Incorrect antenna placement 384 Channel overlap 384 Overcapacity 385 Distance limitations 385 Frequency mismatch 386 Wrong SSID 386 Wrong passphrase 386 Security type mismatch 387 Power levels 387 Signal-to-noise ratio 387 Exam Essentials 388 5.5 Given a scenario, troubleshoot common network service issues. 388 Names not resolving 388 Incorrect gateway 393 Incorrect netmask 394 Duplicate IP addresses 396 Duplicate MAC addresses 397 Expired IP address 397 Rogue DHCP server 399 Untrusted SSL certificate 400 Incorrect time 401 Exhausted DHCP scope 402 Blocked TCP/UDP ports 403 Incorrect host-based firewall settings 403 Incorrect ACL settings 404 Unresponsive service 404 Hardware failure 404 Exam Essentials 405 Review Questions 406 Appendix Answers to Review Questions 411 Chapter 1: Domain 1.0: Networking Concepts 412 Chapter 2: Domain 2.0: Infrastructure 413 Chapter 3: Domain 3.0: Network Operations 415 Chapter 4: Domain 4.0: Network Security 417 Chapter 5: Domain 5.0 Network Troubleshooting and Tools 419 Index 421
Jon Buhagiar, Network+, A+, CCNA, MCSA, MCSE, BS/ITM, is Supervisor of Network Operations at Pittsburgh Technical College. In addition to teaching, he has been creating course content for the past 17 years. Some of his more recent work can be found on Youtube http://www.youtube.com/networkedminds.
Provides a focused, concise review of CompTIA Network+ Exam objectives and complements the Sybex CompTIA Network+ Study Guide, Fourth Edition and CompTIA Network+ Deluxe Study Guide, Fourth Edition. Includes interactive online learning environment and study tools with: + 2 custom practice tests + 200 electronic flashcards + Searchable key term glossary The perfect review tool for Exam N10-007 Be fully prepared for the CompTIA Network+ exam with this CompTIA Network+ Review Guide. Organized by exam objectives, it works hand-in-hand with other learning tools, including CompTIA Network+ Study Guide, CompTIA Network+ Deluxe Study Guide, and CompTIA Network+ Practice Tests. Each chapter corresponds to one of the five domains covered on the exam, providing intense review and reinforcement of key topics such as network implementation, support, and wireless networking. You also have access to 2 practice tests, 200 electronic flashcards, and a searchable glossary of key terms on the exclusive Sybex interactive online learning environment. Review covers all 5 objective domain areas of the Network+ Exam: Network Architecture Network Operations Network Security Troubleshooting Industry Standards, Practices, and Network Theory Interactive learning environment Take your exam prep to the next level with Sybex's superior interactive online study tools. To access our learning environment, simply visit http://www.wiley.com/go/netplustestprep, type in your unique PIN, and instantly gain one year of FREE access to: Interactive test bank with 2 practice exams help you identify areas where further review is needed. Get more than 90% of the answers correct, and you're ready to take the certification exam. 50 questions total! 200 electronic flashcards A searchable glossary of key terms ABOUT THE COMPTIA NETWORK+ PROGRAM CompTIA's Network+ is a vendor-neutral networking certification that validates the knowledge and skills to troubleshoot, configure and manage common wired and wireless networks. CompTIA Network+ is accredited by ANSI as meeting the ISO/IEC 17024 standard, and is approved by U.S. Department of Defense (DoD) to fulfill Directive 8570.01-M requirements. It is compliant with government regulations under the Federal Information Security Management Act (FISMA). Visit www.certification.comptia.org for more information.

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