توضیحات
The CompTIA Network+ Study Guide, 3rd edition, is your one-stop resource for complete coverage of Exam N10-006. This Sybex study guide covers 100% of all exam N10-006 objectives. Content includes assessment tests that check exam readiness, objective map, real-world scenarios, hands-on exercises, key topic exam essentials, and challenging chapter review questions.;Introduction — Assessment test — Ch. 1. Introduction to Networks. First Things First: What’s a Network?: The local area network ; Common network components ; Wide area network ; Network architecture : peer-to-peer or client-server? — Physical Network Topologies: Bus topology ; Star topology ; Ring topology ; Mesh topology ; Point-to-point topology ; Point-to-multipoint topology ; Hybrid topology — Topology Selection, Backbones, and Segments: Selecting the right topology ; The network backbone ; Network segments — Summary — Exam Essentials — Written Labs — Review questions — Ch. 2. The Open Systems Interconnection Specifications. Internetworking Models: The layered approach ; Advantages of reference models — The OSI Reference Model: The application layer ; The presentation layer ; The session layer ; The transport layer ; The network layer ; The data link layer ; The physical layer — Introduction to encapsulation — Modulation techniques — Summary — Exam essentials — Written lab — Review Questions — Ch. 3. Networking Topologies, Connectors, And Wiring Standards. Physical Media: Coaxial cable ; Twisted-pair cable ; Fiber-optic cable ; Media converters ; Serial cables — Cable Properties: Transmission speeds ; Distance ; Duplex ; Noise immunity (Security, EMI) ; Frequency — Wiring Standards: 568A versus 568B ; Straight-through cable ; Crossover cable ; Rolled/rollover cable ; T1 crossover cable — Installing Wiring Distributions — Summary — Exam essentials — Written lab — Review questions — Ch. 4. The Current Ethernet Specifications. Network Basics — Ethernet Basics: Collision domain ; Broadcast domain ; CSMA/CD ; Broadband/baseband ; Bit rates versus baud rate ; Wavelength ; Sampling-size ; Half-and full-duplex Ethernet — Ethernet at the Data Link Layer: Binary to decimal and hexadecimal conversion ; Ethernet addressing ; Ethernet frames — Ethernet at the Physical Layer — Ethernet Over Other Standards (IEEE 1905.1-2013): Ethernet over power line ; Ethernet over HDMI — Summary — Exam essentials — Written lab — Review questions — Ch. 5. Networking Devices. Common Network Connectivity Devices: Network interface card ; Hub ; Bridge ; Switch ; Router ; Firewall ; IDS/IPS ; HIDS ; Access point ; Dynamic host configuration protocol server — Other Specialized Devices: Multilayer switch ; Load balancer ; Domain name service server ; Proxy server ; Encryption devices ; Analog modem ; Packet shaper ; VPN concentrator — Planning and Implementing a Basic SOHO Network Using Network Segmentation: Determining requirements ; Switches and bridges at the data link layer ; Hubs at the physical layer ; Environmental considerations — Summary — Exam essentials — Written lab — Review questions — Ch. 6. Introduction to the Internet Protocol. Introducing TCP/IP: A brief history of TCP/IP ; TCP/IP and the DoD model ; The process/application layer protocols ; The host-to-host layer protocols ; The Internet layer protocols — Data Encapsulation — Summary — Exam essentials — Written lab — Review Questions — Ch. 7. IP Addressing. IP Terminology — Hierarchical IP Addressing Scheme: Network addressing ; Private IP addresses (RFC 1918) — IPv4 Address Types: Layer 2 broadcasts ; Layer 3 broadcasts ; Unicast address ; Multicast address (Class D) — Internet Protocol Version 6 (IPv6): Why do we need IPv6? ; The benefits of and uses for IPv6 ; IPv6 addressing and expressions ; Shortened expression ; Address types ; Special addresses ; Stateless auto-configuration (EUI-64) ; DHCPv6 (Stateful) ; Migrating to IPv6 — Summary — Exam essentials — Written Lab: Written Lab 7.1 ; Written Lab 7.2 ; Written Lab 7.3 — Review questions — Ch. 8. IP Subnetting, Troubleshooting IP, and Introduction to NAT. Subnetting Basics: How to create subnets ; Subnet masks ; Classless Inter-Domain Routing (CIDR) ; Subnetting Class C addresses ; Subnetting Class B addresses — Troubleshooting IP Addressing: Determining IP address problems — Introduction To Network Address Translation (NAT): Types of network address translation ; NAT names ; How NAT works — Summary — Exam essentials — Written lab — Review questions — Ch. 9. Introduction to IP Routing. Routing basics ; The IP routing process ; Testing your IP routing understanding ; Static and dynamic routing ; Summary — Exam essentials — Written lab — Review questions — Ch. 10. Routing Protocols. Routing Protocol Basics: Administrative distances ; Classes of routing protocols — Distance Vector Routing Protocols: Routing Information Protocol (RIP) ; RIP version 2 (RIPv2) ; VLSM and discontinuous networks ; EIGRP ; Border Gateway Protocol (BGP) — Link State Routing Protocols: Open Shortest Path First (OSPF) ; Intermediate System-To-Intermediate System (IS-IS) — High Availability: Hot Standby Router Protocol (HSRP) ; Virtual router redundancy protocol — IPv6 Routing Protocols: RIPng ; EIGRPv6 ; OSPFv3 — Summary — Exam essentials — Written lab — Review questions — Ch. 11. Switching and Virtual LANs. Networking before layer 2 switching — Switching Services: Limitations of layer 2 switching ; Bridging versus LAN switching ; Three switch functions at layer 2 — Spanning Tree Protocol: Spanning tree port states ; STP convergence ; Rapid spanning tree protocol 802.1w — Virtual LANs: VLAN basics ; Quality of service ; VLAN memberships ; Static VLANs ; Dynamic VLANs ; Identifying VLANs ; VLAN identification methods — VLAN Trunking Protocol: VTP modes of operation ; Do we really need to put an IP address on a switch? ; Port security ; Port bonding — Two Additional Advanced Features of Switches: Power over Ethernet (802.3af, 802.3at) ; Port Mirroring/Spanning (SPAN/RSPAN) — Summary — Exam essentials — Written lab — Review questions — Ch. 12. Wireless Networking. Introduction to wireless technology — The 802.11 Standards: 2.4GHz (802.11b) ; 2.4GHz (802.11g) ; 5GHz (802.11a) ; 5GHz (802.11h) ; 2.4GHz/5GHz (802.11n) ; 5GHz (802.11ac) — Comparing 802.11 Standards: Range comparisons — Wireless Network Components: Wireless access points ; Wireless network interface card ; Wireless antennas — Installing a Wireless Network: Ad hoc mode : independent basic service set ; Infrastructure mode : basic service set ; Wireless controllers ; Mobile hot spots ; Signal degradation ; Other network infrastructure implementations ; Installing and configuring WLAN hardware — Site survey — Wireless Security: Wireless threats ; Open access ; Service set identifiers, wired equivalent privacy, and media access control address authentication ; Remote authentication dial-in user service (802.1x) ; Temporal key integrity protocol ; Wi-Fi protected access or WPA2 pare-shared key — Summary — Exam essentials — Written lab — Review questions — Ch. 13. Authentication and Access Control. Security Filtering: Access control lists ; Tunneling ; Encryption ; Remote access — Managing User Account and Password Security: Managing user accounts ; Managing passwords ; Single sign-on ; Multifactor authentication — User-authentication methods: Public Key Infrastructure (PKI) ; Kerberos ; Authentication, Authorization, and Accounting (AAA) ; Web services ; Unified voice services ; Network controllers ; Network Access Control (NAC) ; Challenge Handshake Authentication Protocol (CHAP) ; MS-CHAP ; Extensible Authentication Protocol (EAP) ; Hashes ; Network access control — Summary — Exam essentials — Written lab — Review questions –;Ch. 14. Network Threats And Mitigation. Recognizing Security Threats: Denial of service ; Distributed DoS (DDos) ; Authentication issues ; Viruses ; Zero day attacks ; Insider threat/malicious employee — Vulnerabilities: Unnecessary running services ; Open ports ; Unpatched/legacy systems ; Unencrypted channels ; Clear-text credentials ; TEMPEST/RF emanation ; Malicious users ; Buffer overflow ; Wireless threats ; Attackers and their tools ; Misconfiguration issues ; Social Engineering (Phishing) — Understanding Mitigation Techniques: Active detection ; Passive detection ; Proactive defense ; Basic forensic concepts — Policies And Procedures: Security policies ; Security training ; Patches and upgrades ; Firmware updates ; Driver updates ; Upgrading versus downgrading — Anti-Malware Software: Host-based ; Cloud/server-based ; Configuration backups ; Updating antivirus components ; Fixing an infected computer — Summary — Exam essentials — Written lab — Review questions — Ch. 15. Physical Security and Risk. Using hardware and software security devices — Defining Firewalls: Network-based firewalls ; Host-based firewalls — Firewall Technologies: Access control lists ; Port security ; Demilitarized zone ; Protocol switching ; Dynamic packet filtering ; Proxy services — Firewalls at the Application Layer Versus the Network Layer: Stateful versus stateless network layer firewalls ; Application layer firewalls — Scanning Services and Other Firewall Features: Content filtering ; Signature identification ; Context awareness ; Virtual wire versus routed ; Zones — Intrusion Detection and Prevention Systems: Network-based IDS ; Host-based IDS ; Vulnerability scanners — VPN concentrators — Understanding Problems Affecting Device Security: Physical security ; Logical security configurations ; Risk-related concepts — Summary — Exam essentials — Written lab — Review questions — Ch. 16. Wide Area Networks. What’s a WAN?: Defining WAN terms ; The public switched telephone network ; WAN connection types ; Bandwidth or speed — T-Series Connections: The T1 connection ; The T3 connection — Transmission Media: Wired connections ; Wavelength division multiplexing ; Passive optical network ; Wireless technologies — Broadband Services: ; DSL technology and xDSL ; Cable modem — Wireless WAN Technologies: Cellular WAN — WAN Protocols: Integrated services digital network ; Frame relay technology ; Point-to-point protocol ; Asynchronous transfer mode ; MPLS — WAN Troubleshooting: Loss of internet connectivity ; Interface errors/monitoring ; Split horizon ; DNS issues ; Router configurations ; Company security policy — Summary — Exam essentials — Written lab — Review questions — Ch. 17. Troubleshooting Tools. Protocol analyzers — Throughput testers — Connectivity software — Using Traceroute — Using ipconfig and ifconfig: Using the ipconfig utility ; Using the ifconfig utility — Using the ping utility — Using the Address Resolution Protocol: The Windows ARP table ; Using the arp utility — Using the nslookup utility — Resolving names with the hosts table — Using the Mtr command (pathping) — Using the route command: Using the route command options ; Some examples of the route command — Using the nbtstat Utility: The -a switch ; The -A switch ; The -c switch ;The -n switch ; The -r switch ; The -R switch ; The -S switch ; The -s switch — Using the netstat Utility: The -a switch ; The -e switch ; The -r switch ; The -s switch ; The -p switch ; The -n switch — Using the File Transfer Protocol: Starting FTP and logging in to an FTP server ; Downloading files ; Uploading files — Using the Telnet utility: How to enable Telnet in Windows ; Don’t use Telnet, use secure shell — Summary — Exam essentials — Written lab — Review questions — Ch. 18. Software and Hardware Tools. Understanding Network Scanners: Packet sniffers/network monitors ; Intrusion detection and prevention software ; Port scanners ; Wi-Fi analyzer — Baseline — Network Monitoring and Logging: Network monitoring ; SNMP ; Syslog ; SIEM ; Utilization — Identifying Hardware Tools: Cable testers ; Protocol analyzer ; Certifiers ; Time-domain reflectometer ; Optical time-domain reflectometer ; Multimeter ; Toner probe ; Butt set ; Punch-down tool ; Cable stripper/snips ; Voltage event recorder (power) ; Environmental monitors — Summary — Exam essentials — Written lab — Review questions — Ch. 19. Network Troubleshooting. Narrowing Down the Problem: Did you check the super simple stuff? ; Is hardware or software causing the problem? ; Is it a workstation or a server problem? ; Which segments of the network are affected? ; Is it bad cabling? — Troubleshooting Steps: Step 1: Identify the problem ; Step 2: Establish a theory of probable cause ; Step 3: Test the theory to determine cause ; Step 4: Establish a plan of action to resolve the problem and identify potential effects ; Step 5: Implement the solution or escalate as necessary ; Step 6: Verify full system functionality, and if applicable, implement preventative measures ; Step 7: Document findings, actions, and outcomes — Troubleshooting Tips: Don’t overlook the small stuff ; Prioritize your problems ; Check the software configuration ; Don’t overlook physical conditions ; Don’t overlook cable problems ; Check for viruses — Summary — Exam essentials — Written lab — Review questions — Ch. 20. Management, Monitoring, And Optimization. Managing Network Documentation: Using SNMP ; Schematics and diagrams — Network Monitoring: Baselines ; On-boarding and off-boarding of mobile devices ; NAC ; Policies, procedures, and regulations ; Safety practices ; Implementing network segmentation — Network Optimization: Reasons to optimize your network’s performance ; How to optimize performance ; Unified communications ; Traffic shaping ; Load balancing ; High availability ; Caching engines ; Fault tolerance ; Archives/backups ; Common address redundancy protocol ; Virtual networking ; Locating and installing equipment ; Change management procedures — Summary — Exam essentials — Written lab — Review questions — Appendix A: Answers To the Written Labs: Chapters: 1-7 ; Written Lab: 7.1 ; Written Lab: 7.2 ; Written Lab: 7.3 ; Chapters: 8-20 — Answers to Review Questions: Chapters: 1-20 — Appendix C: Subnetting Class A. Subnetting Practice Examples: Class A addresses: Practice Example #1A: 255.255.0.0 (/16) ; Practice Example #2A: 225.255.240.0 (/20) — Practice Example #3A: 255.255.255.192 (/26) — Subnetting in your head: Class A addresses — Written Lab 1 — Written Lab 2 — Answers to Written Lab 1 — Answers to Written Lab 2 — Index.;
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ترجمه ماشینی :
راهنمای شبکه Comptia+ راهنمای مطالعه ، نسخه 3 ، منبع یک مرحله ای شما برای پوشش کامل آزمون N10-006 است. این راهنمای مطالعه SYBEX 100 ٪ از کل اهداف N10-006 را در بر می گیرد. محتوا شامل آزمون های ارزیابی است که آمادگی آزمون ، نقشه هدف ، سناریوهای دنیای واقعی ، تمرینات دستی ، ملزومات آزمون اصلی موضوع و سؤالات مرور فصل را به چالش می کشد. ؛ مقدمه-آزمون ارزیابی-ch. 1. آشنایی با شبکه ها. اولین چیزها اول: شبکه چیست ؟: شبکه محلی ؛ اجزای شبکه مشترک ؛ شبکه گسترده ؛ معماری شبکه: همسالان به همسالان یا مشتری سرور؟ – توپولوژی شبکه فیزیکی: توپولوژی اتوبوس ؛ توپولوژی ستاره ؛ توپولوژی حلقه ؛ توپولوژی مش ؛ توپولوژی نقطه به نقطه ؛ توپولوژی نقطه به مبهم ؛ توپولوژی ترکیبی – انتخاب توپولوژی ، ستون فقرات و بخش ها: انتخاب توپولوژی مناسب ؛ ستون فقرات شبکه ؛ بخش های شبکه – خلاصه – ملزومات امتحان – آزمایشگاه های نوشتاری – سوالات مرور – ch. 2. مشخصات اتصال سیستم های باز. مدل های کار در اینترنت: رویکرد لایه بندی شده ؛ مزایای مدل های مرجع – مدل مرجع OSI: لایه برنامه ؛ لایه ارائه ؛ لایه جلسه ؛ لایه حمل و نقل ؛ لایه شبکه ؛ لایه پیوند داده ؛ لایه فیزیکی – مقدمه ای برای محصور سازی – تکنیک های مدولاسیون – خلاصه – ملزومات امتحان – آزمایشگاه کتبی – سوالات مرور – ch. 3. توپولوژی ، اتصالات و استانداردهای سیم کشی. رسانه فیزیکی: کابل کواکسیال ؛ کابل جفت پیچ خورده ؛ کابل فیبر نوری ؛ مبدل های رسانه ای ؛ کابل های سریال – خصوصیات کابل: سرعت انتقال ؛ فاصله ؛ دوبلکس ؛ ایمنی سر و صدا (امنیت ، EMI) ؛ فرکانس – استانداردهای سیم کشی: 568A در مقابل 568B ؛ کابل مستقیم ؛ کابل متقاطع ؛ کابل نورد/رولور ؛ کابل متقاطع T1 – نصب توزیع سیم کشی – خلاصه – ملزومات امتحان – آزمایشگاه کتبی – سوالات مرور – چ. 4- مشخصات فعلی اترنت. مبانی شبکه – اصول اولیه اترنت: دامنه برخورد ؛ دامنه پخش ؛ CSMA/CD ؛ باند پهن/پایه ؛ نرخ بیت در مقابل نرخ باود ؛ طول موج ؛ اندازه نمونه برداری ؛ اترنت نیمه و تمام دوتایی-اترنت در لایه پیوند داده: باینری به اعشاری و تبدیل شش ضلعی. خطاب به اترنت ؛ فریم های اترنت-اترنت در لایه فیزیکی-اترنت نسبت به سایر استانداردها (IEEE 1905.1-2013): اترنت بر روی خط برق. اترنت بیش از HDMI – خلاصه – ملزومات امتحان – آزمایشگاه کتبی – سوالات مرور – چ. 5. دستگاه های شبکه. دستگاه های اتصال مشترک شبکه: کارت رابط شبکه ؛ توپی پل تعویض ؛ روتر ؛ دیواره آتش ؛ IDS/IPS ؛ پنهان نقطه دسترسی ؛ سرور پروتکل پیکربندی میزبان پویا – سایر دستگاه های تخصصی: سوئیچ چند لایه ؛ متعادل کننده بار ؛ سرور سرویس نام دامنه ؛ سرور پروکسی ؛ دستگاه های رمزگذاری ؛ مودم آنالوگ ؛ Packet Shaper ؛ کنسانتره VPN – برنامه ریزی و اجرای یک شبکه اساسی SOHO با استفاده از تقسیم بندی شبکه: تعیین الزامات. سوئیچ ها و پل ها در لایه پیوند داده ؛ مراکز در لایه فیزیکی ؛ ملاحظات زیست محیطی – خلاصه – ملزومات امتحان – آزمایشگاه کتبی – سوالات مرور – ch. 6. مقدمه پروتکل اینت
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