CompTIA Network+: Troubleshooting Network Issues
CompTIA Network+
| Intermediate
- 23 Videos | 2h 44m 40s
- Includes Assessment
- Earns a Badge
Troubleshooting network connectivity is a complex responsibility that can require various approaches and techniques in order to resolve issues. In this course, you'll learn about using the appropriate network troubleshooting software tools and commands. You'll explore software tools such as Wi-Fi analyzers and port scanners and learn about traditional command line tools and network platform commands. You'll also examine how to troubleshoot common wireless connectivity issues including issues relating to specifications and limitations. Next, you'll learn about common considerations and issues pertaining to wireless connectivity. You'll explore general network troubleshooting best practices as they relate to wired networks. Finally, you'll examine considerations such as routing tables, VLAN assignment, and other common issues. This course is one of a collection of courses that prepares learners for the N10-008: CompTIA Network+ certification exam
WHAT YOU WILL LEARN
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discover the key concepts covered in this courserecognize how to work with a packet sniffer to intercept and log network trafficdescribe how to use a port scanner to identify which ports are open on a networkdescribe how to use a Wi-Fi analyzer to detect usagerecognize when and how to use a bandwidth speed testerdescribe how to use other common software tools such as iPerf, NetFlow analyzers, Trivial File Transfer Protocol (TFTP) server, terminal emulator, and IP scannerdescribe how to use network troubleshooting command line tools, including ping, ipconfig, telnet, Nmap, and netstatoutline the features and purpose of using Linux command line toolsrecognize how to troubleshoot wireless connectivity issues such as throughput, speed, distance, received signal strength indication (RSSI) signal strength, effective isotropic radiated power (EIRP), and power settingsdescribe wireless connectivity considerations such as antennas, channel utilization, site surveys, and AP association timerecognize common wireless connectivity issues including interference, channel overlap, antenna cable attenuation/signal loss, RF attenuation/signal loss, wrong SSID, incorrect passphrase, encryption protocol mismatch, insufficient wireless coverage, and captive portal issuesdescribe the key considerations when troubleshooting wired networking issues, including device configuration review, routing tables, interface status, VLAN assignment, and network performance baselines
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describe how to troubleshoot issues relating to an incorrect or failed default gatewaydescribe how to troubleshoot issues relating to an incorrectly configured netmaskrecognize how to troubleshoot issues caused by duplicate IP and MAC addressesrecognize how to troubleshoot issues where names are not resolvingdescribe how to troubleshoot issues caused by expired DHCP scopes and rogue DHCP serversrecognize how to correct issues caused by expired IP addresses and incorrect system timesdescribe how to troubleshoot issues caused by untrusted SSL certificates and blocked TCP/UDP portsrecognize how to troubleshoot issues caused by incorrect firewall and ACL settingsdescribe how to correct issues caused by hardware failures and unresponsive servicesoutline the characteristics of and reason for common wired connectivity issuessummarize the key concepts covered in this course
IN THIS COURSE
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1.Course Overview2m 2sUP NEXT
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2.Protocol Analyzers and Packet Sniffers5m 37s
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3.Network Port Scanning7m 15s
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4.Wi-Fi Analysis Tools and Techniques4m 22s
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5.Bandwidth Speed Testing6m 23s
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6.Common Network Software Tools6m 18s
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7.Common Command Line Tools12m 7s
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8.Common Linux Commands3m 49s
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9.Wireless Specifications and Limitations9m 27s
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10.Wireless Connectivity Considerations10m 2s
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11.Common Wireless Connectivity Issues10m 48s
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12.Wired Network Considerations9m 9s
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13.Default Gateway Issues4m 42s
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14.Incorrect Netmask Issues15m 13s
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15.Duplicate IP or MAC Addresses7m 12s
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16.Resolving Common DNS Issues6m 30s
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17.Expired DHCP Scopes and Rogue DHCP Servers7m 18s
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18.Expired IP Addresses and Incorrect System Times7m 41s
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19.SSL Certificates and Blocked Ports7m 6s
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20.Incorrect Firewall and ACL Settings3m 41s
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21.Hardware Failures and Unresponsive Services8m 14s
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22.Common Wired Connectivity Issues8m 31s
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23.Course Summary1m 12s
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