CompTIA Network+ objective coverage

learn/network-plus/coverage

Every objective on CompTIA Network+ N10-009 (V9), which topics cover it, and how many practice questions target it. This page is generated from topic frontmatter and the question banks, so it cannot drift from what is actually written.

Objectives with a topic: 25 of 25 (100%)
Objectives with questions: 25 of 25 (100%)
Questions written: 340 (exam is 90 in 90 min)

1.0 Networking Concepts

23% of the exam. 69 questions written against a weighted share of 21.

Objective	Topics	Questions
1.1Explain concepts related to the Open Systems Interconnection (OSI) reference model.	What a network actually is MACs, IPs and ports The OSI model What happens when you open a web page	8
1.2Compare and contrast networking appliances, applications, and functions.	The boxes on a network	7
1.3Summarize cloud concepts and connectivity options.	Cloud concepts and connectivity	7
1.4Explain common networking ports, protocols, services, and traffic types.	MACs, IPs and ports TCP, UDP and the handshake Ports and the protocols that use them Unicast, multicast, anycast and broadcast What happens when you open a web page IP protocols and tunnelling	12
1.5Compare and contrast transmission media and transceivers.	Copper cabling Fibre and transceivers Wireless and cellular media	11
1.6Compare and contrast network topologies, architectures, and types.	Topologies and architectures	7
1.7Given a scenario, use appropriate IPv4 network addressing.	IPv4 addresses and the mask Subnetting by hand Address classes, private ranges and APIPA VLSM and planning an address space	10
1.8Summarize evolving use cases for modern network environments.	IPv6 addressing SDN, SD-WAN and VXLAN Zero trust, SASE and infrastructure as code	7

2.0 Network Implementation

20% of the exam. 60 questions written against a weighted share of 18.

Objective	Topics	Questions
2.1Explain characteristics of routing technologies.	The routing table and static routes Dynamic routing protocols Route selection NAT and PAT FHRP, virtual IPs and subinterfaces	17
2.2Given a scenario, configure switching technologies and features.	How a switch learns VLANs Trunking and 802.1Q tagging Interface configuration and link aggregation Spanning tree MTU and jumbo frames	23
2.3Given a scenario, select and configure wireless devices and technologies.	Wireless channels and frequencies SSIDs, network types and access points Wireless security and authentication	13
2.4Explain important factors of physical installations.	Physical installations	7

3.0 Network Operations

19% of the exam. 62 questions written against a weighted share of 17.

Objective	Topics	Questions
3.1Explain the purpose of organizational processes and procedures.	Network documentation and diagrams Lifecycle, change and configuration management	12
3.2Given a scenario, use network monitoring technologies.	SNMP Flow data, capture and port mirroring Baselines, alerting and monitoring solutions	13
3.3Explain disaster recovery (DR) concepts.	Disaster recovery	10
3.4Given a scenario, implement IPv4 and IPv6 network services.	DHCP IPv6 address assignment and SLAAC How DNS resolution works DNS records and zones DNS security Time protocols	16
3.5Compare and contrast network access and management methods.	VPNs Managing devices remotely	11

4.0 Network Security

14% of the exam. 56 questions written against a weighted share of 13.

Objective	Topics	Questions
4.1Explain the importance of basic network security concepts.	Security vocabulary and the CIA triad Encryption, certificates and PKI Identity and access management Physical security and deception Compliance and audits Network segmentation	25
4.2Summarize various types of attacks and their impact to the network.	Layer 2 attacks Attacks on services and people	16
4.3Given a scenario, apply network security features, defense techniques, and solutions.	Access lists, filtering and security zones Device hardening and network access control	15

5.0 Network Troubleshooting

24% of the exam. 93 questions written against a weighted share of 21.

Objective	Topics	Questions
5.1Explain the troubleshooting methodology.	The troubleshooting methodology Narrowing a fault by layer	10
5.2Given a scenario, troubleshoot common cabling and physical interface issues.	Cable faults and signal problems Interface counters and port status PoE and transceiver problems	14
5.3Given a scenario, troubleshoot common issues with network services.	Spanning tree Switching faults, loops and VLANs Routing and default gateway faults Addressing faults	18
5.4Given a scenario, troubleshoot common performance issues.	Wireless performance and roaming Bandwidth, congestion and bottlenecks Latency, jitter and packet loss	15
5.5Given a scenario, use the appropriate tool or protocol to solve networking issues.	Ping, traceroute and what they prove Connection and interface tools Name resolution tools Packet capture and protocol analysis Discovery tools and device commands	36

Objective numbers and titles are CompTIA Network+'s own, reproduced because they are how the exam is referenced. The objectives document itself is copyright CompTIA and is not reproduced here.

$coverage--examN10-009

1.0 Networking Concepts

2.0 Network Implementation

3.0 Network Operations

4.0 Network Security

5.0 Network Troubleshooting