Quick Answer
Configure VLANs with `switchport mode trunk`, run OSPF with `network` statements, and set up NAT overload with `ip nat inside source list`. Get subnetting and wildcard masks right, since errors break routing and DHCP relay.
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.
What the exam tests
Common exam traps
Ethernet Switching and VLANs
Objective 2.1 · Network Implementation
Wireless Standards and Configuration
Objective 2.2 · Network Implementation
Physical Network Infrastructure
Objective 2.3 · Network Implementation
WAN Technologies and Connections
Objective 2.4 · Network Implementation
DNS and DHCP Implementation
Objective 2.5 · Network Implementation
NAT and PAT Implementation
Objective 2.6 · Network Implementation
Switch Port Modes: Access vs Trunk
Objective 2.1 · Network Implementation
Inter-VLAN Routing Methods
Objective 2.1 · Network Implementation
802.1Q Trunking Configuration
Objective 2.1 · Network Implementation
Native VLAN Configuration and Security
Objective 2.1 · Network Implementation
Link Aggregation: LACP and PAgP
Objective 2.1 · Network Implementation
RSTP Implementation and Convergence
Objective 2.1 · Network Implementation
PortFast and BPDU Guard
Objective 2.1 · Network Implementation
802.11 Standards Detail: a/b/g/n/ac/ax
Objective 2.2 · Network Implementation
Wireless Channels and Band Steering
Objective 2.2 · Network Implementation
Wireless Roaming: BSS, ESS, and Fast Roaming
Objective 2.2 · Network Implementation
Wireless LAN Controller Deployment
Objective 2.2 · Network Implementation
Mesh Networking
Objective 2.2 · Network Implementation
Cellular Technologies: LTE and 5G
Objective 2.4 · Network Implementation
Satellite Internet and LEO Constellations
Objective 2.4 · Network Implementation
Cable Modem and DSL Technologies
Objective 2.4 · Network Implementation
FTTH and FTTP Technologies
Objective 2.4 · Network Implementation
MPLS Network Implementation
Objective 2.4 · Network Implementation
Metro Ethernet Services
Objective 2.4 · Network Implementation
Structured Cabling Standards (ANSI/TIA-568)
Objective 2.3 · Network Implementation
Patch Panels and T568A/T568B Wiring
Objective 2.3 · Network Implementation
Server Rack Design and Cable Management
Objective 2.3 · Network Implementation
DNS Record Types: A, AAAA, MX, CNAME, PTR, TXT, SRV
Objective 2.5 · Network Implementation
DNS Zones and Zone Transfers
Objective 2.5 · Network Implementation
DHCP Scopes, Options, and Reservations
Objective 2.5 · Network Implementation
DHCP Relay Agent Configuration
Objective 2.5 · Network Implementation
Forward and Reverse Proxy Servers
Objective 2.6 · Network Implementation
Load Balancing Methods and Algorithms
Objective 2.6 · Network Implementation
High Availability and Clustering
Objective 2.6 · Network Implementation
IP Address Management (IPAM) Tools
Objective 2.5 · Network Implementation
Free N10-009 practice questions with full explanations. Test what you learn chapter by chapter.
N10-009 Practice Questions