Chapter 2 of 5 · CompTIA Network+ N10-009
Network Implementation
Routing, NAT, VLANs, spanning tree, switch features, wireless design and physical installation.
- 8topics
- 40 minfast track
- 4diagrams and exhibits
- 20%of the exam
Topics in this chapter
Take them in order, or jump to the one you need.
- 1Routing TechnologiesExplain how routers choose paths with static and default routes, dynamic OSPF, EIGRP and BGP, administrative distance, metric and…5 min
- 2NAT, Gateway Redundancy and SubinterfacesUnderstand NAT and PAT address translation, first hop redundancy with a virtual IP using VRRP or HSRP, and router subinterfaces…Diagram5 min
- 3VLANs and TrunkingLearn how VLANs split broadcast domains, how access and trunk ports differ, 802.1Q tagging, native and voice VLANs, and inter…Diagram5 min
- 4Spanning Tree and Link AggregationUnderstand how Spanning Tree Protocol prevents switching loops with a root bridge, port roles and states, and how LACP link…Diagram5 min
- 5Switch Port FeaturesConfigure switch port features including speed and duplex, flow control, jumbo frames, port mirroring, PoE, MDI-X, the MAC…5 min
- 6Wireless Standards and BandsCompare 802.11 Wi-Fi standards, the 2.4, 5 and 6 GHz bands, channels, channel width, MIMO and cellular options for wireless…5 min
- 7Wireless Configuration and DesignConfigure SSID, BSSID and ESS, roaming, antenna types, WPA2 and WPA3 security, captive portals, site surveys and controller based…5 min
- 8Physical Installation FactorsPlan a physical installation: MDF and IDF rooms, rack size and airflow, patch panels, UPS and PDU power, plus humidity…5 min
About this chapter
What this chapter covers
Network Implementation is about building and configuring the parts of a working network. It covers how routers and switches forward traffic, how wireless networks are designed and how the equipment is installed.
The chapter follows the second exam domain. It has four syllabus topics: routing technologies, switching technologies and features, wireless devices and technologies, and physical installation factors.
How the topics fit together
A packet starts on a switch port or a wireless client, crosses the switching layer, is routed to another network, and travels over cabling in a room that must be powered and cooled.
- Routing covers static and dynamic routes, route selection, NAT and gateway redundancy.
- Switching covers VLANs, trunks, spanning tree, link aggregation and port features.
- Wireless covers standards, bands, channels, security and access point design.
- Physical installation covers distribution rooms, racks, airflow, power and environment.
Many scenario questions combine topics, for example a VLAN that cannot reach another VLAN. Decide first whether the problem is switching, routing or physical.
How to use these pages
Each topic page has the same shape, so you can skim for what you need.
- What it is: the idea in plain words.
- How it works: the mechanism, with diagrams, tables and example commands.
- What to remember for the exam: the facts to memorize.
- Common mistakes: the classic traps.
- Check yourself: three questions to test your understanding.
Read the pages in order the first time. Then use the exam facts and the questions for revision.
Ready for more practice?
The full CompTIA Network+ N10-009 question bank has 910 questions, with timed practice exams and an explanation for every answer.
This study guide is independent and is not affiliated with, endorsed by, or sponsored by CompTIA. Vendor names, certification names and exam codes are trademarks of their respective owners and are used for identification only.