Week 10— Networking Concepts · Network Implementation · Network Operations · Network Security · Network Troubleshooting
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Networking Concepts
Networking Concepts is 23% of N10-009, covering OSI models, IPv4/IPv6 addressing, switching, routing, wireless, and cloud. Expect drag-and-drop, multiple-choice, and performance-based questions where you subnet, select ports, or identify a topology. You must apply concepts, not just recall definitions.
📅 Day 70🎯 ~6 questions/day⚖ 23% of exam- ✓Identify OSI layer for protocols like TCP, UDP, ARP, and ICMP.
- ✓Calculate subnets and host ranges from CIDR notation such as /26.
- ✓Differentiate 802.11 standards, frequencies, and wireless security types.
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Network Implementation
This domain covers deploying and configuring wired and wireless networks using switching, routing, and wireless technologies. For N10-009, you must know VLANs, STP, EtherChannel, OSPF, NAT, DHCP, DNS, and wireless standards. Exam questions present configuration scenarios and ask you to select the correct command, protocol, or setting to meet a requirement.
📅 Day 70🎯 ~6 questions/day⚖ 20% of exam- ✓Configure VLANs and 802.1Q trunking on switches, including native VLAN and allowed VLAN lists.
- ✓Implement OSPFv2 areas, neighbor adjacencies, and default route propagation on routers.
- ✓Set up wireless access points with WPA3, correct channels, and SSID-to-VLAN mapping.
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Network Operations
Network Operations is 19% of N10-009 and covers the day-to-day running of a network: documentation and diagrams, monitoring and SNMP, configuration and change management, backups, remote access, and disaster recovery. Expect scenario questions asking which tool, command, or process fits a described operational situation rather than simple recall.
📅 Day 70🎯 ~7 questions/day⚖ 19% of exam- ✓Interpreting network documentation, physical and logical diagrams, and change-management records
- ✓Using SNMP, syslog, and monitoring tools to baseline and detect performance issues
- ✓Applying configuration management, backups, and version control to network device changes
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Network Security
Network Security is 14% of the CompTIA Network+ N10-009 exam. It covers hardening wired and wireless networks, implementing segmentation and access control, and applying defense-in-depth. Expect scenario questions where you select the correct security control, protocol, or placement for a given threat, and identify misconfigurations in ACLs, VLANs, or wireless authentication settings.
📅 Day 70🎯 ~9 questions/day⚖ 14% of exam- ✓Differentiate WPA2-Personal, WPA2-Enterprise, WPA3, and 802.1X with RADIUS authentication
- ✓Place firewalls, IDS/IPS, and honeypots correctly in a network topology
- ✓Configure ACL rules, VLAN segmentation, and screened subnets for least privilege
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Network Troubleshooting
Network Troubleshooting is 24% of Network+ N10-009 and covers a seven-step methodology plus the tools to execute it. The exam presents scenario-based questions: given symptoms, logs, or output from ping, traceroute, ipconfig, dig, or a packet capture, you identify the fault layer, pick the next diagnostic step, and select the fix.
📅 Day 70🎯 ~6 questions/day⚖ 24% of exam- ✓Applying the seven-step troubleshooting methodology from problem identification through documentation
- ✓Interpreting ping, traceroute, nslookup/dig, ipconfig/ifconfig, and arp output to isolate faults
- ✓Selecting tools such as protocol analyzer, cable tester, toner probe, and OTDR for a scenario