CompTIA Network+
N10-009 Practice Tests
Free, unlimited practice for the CompTIA Network+ exam. 790+ questions, 3 interactive PBQ labs, and 6 full mock exams across all 5 domains. Scaled scoring 720/900. No signup required.
Exam Domains
Networking Concepts
OSI model, TCP/IP, ports/protocols, IP addressing, subnetting, and network topologies.
Network Implementation
Cabling, switching, routing, wireless, VLANs, and network device configuration.
Network Operations
Monitoring, documentation, disaster recovery, policies, and network optimization.
Network Security
Firewalls, VPNs, ACLs, secure protocols, and network hardening.
Network Troubleshooting
Troubleshooting methodology, connectivity issues, and performance problems.
Mock Exams & Practice Modes
About the CompTIA Network+ Exam (N10-009)
Exam Format
The N10-009 exam has a maximum of 90 questions including 3-7 performance-based questions (PBQs) — the most PBQs of any CompTIA exam. You have 90 minutes. PBQs appear first and include subnetting, ACL configuration, and network topology tasks. Passing score is 720 on a scaled 100-900 scale.
OSI Model — The Backbone
The OSI model underpins nearly every Network+ question. Know all 7 layers cold — what operates at each, encapsulation order, and common protocols/devices per layer. Use our OSI matching PBQ lab to drill this until it's automatic. Subnetting and CIDR calculation are the second most-tested concept.
How Our Mocks Work
All 6 mocks are blueprint-weighted with questions distributed proportionally across the 5 domains matching N10-009 objectives. 3-4 PBQs appear first in each mock. Questions are seeded per mock so each attempt draws from different question pools without repetition.
Most Common PBQ Topics
Subnetting, ACL configuration, network topology placement, and cable troubleshooting are the most frequent Network+ PBQ types. The exam expects you to calculate network IDs, broadcast addresses, and usable IP ranges. Practice these hands-on — theory alone won't cut it for the PBQ section.
Sample CompTIA Network+ N10-009 questions with explanations
Use these examples to check how the topics are tested. Read the explanation for every option you were unsure about, then start a scored practice set above.
Which IP class is for multicast?
- ○ Class B
- ○ Class A
- ○ Class C
- ✓ Class D
Which service secure file transfer protocol?
- ○ RADIUS
- ○ TACACS+
- ○ LDAP
- ✓ SFTP
Which routing concept known networks and next hops?
- ✓ Route table
- ○ Static route
- ○ Dynamic route
- ○ AD
Which virtualization networking term encapsulates layer 2 over layer 3?
- ○ vNIC
- ✓ VXLAN
- ○ vSwitch
- ○ Port group
Open the full CompTIA Network+ N10-009 question-and-answer guide
Ready to test your networking skills?
900+ questions, 4 PBQ labs, and 6 blueprint-weighted mock exams. All free, no signup required.
Free CompTIA Network+ exam questions with answers
20 real N10-009 questions from our 937-question bank, each printed with the correct answer and a full explanation, plus the exam facts, domain weights and a study plan.
See the N10-009 exam questions