N10-009 CompTIA Network+ Exam – Complete Guide
The CompTIA Network+ N10-009 certification is a globally recognized credential
designed for IT professionals who want to validate their networking skills. This
exam covers essential networking concepts, infrastructure, troubleshooting,
security, and operations.
Passing the N10-009 exam proves your ability to design, manage, and troubleshoot
both wired and wireless networks in real-world environments.
Topics Covered in N10-009 CompTIA Network+ Exam
The N10-009 exam focuses on the following key domains:
Networking Fundamentals (OSI model, TCP/IP, ports, protocols)
Network Implementations (routers, switches, wireless technologies)
Network Operations (monitoring, documentation, disaster recovery)
Network Security (threats, vulnerabilities, security devices)
Network Troubleshooting (tools, methodologies, resolving issues)
Most students preparing for the N10-009 exam frequently ask:
Is N10-009 harder than previous versions?
What are the best study materials for Network+?
How long does it take to prepare?
Are practice questions enough to pass?
What is the passing score for N10-009?
Can beginners pass Network+ without experience?
What jobs can I get after Network+?
How important is troubleshooting for the exam?
Are dumps reliable for passing?
What is the exam format and question types?
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Network+
CompTIA Network+ is the premier certification for validating your knowledge of
essential networking tools and concepts. You will be assessed on your abilities
in network connectivity, documentation, service configuration, data centers,
cloud, virtual networking, monitoring, troubleshooting, and security hardening.
This certification prepares you for jobs in technical support, network
operation, and system administration.
N10-009 CompTIA Network+ Exam – Complete Guide
Skills learned
Deploy wired and wireless devices, covering IP addressing, ports, protocols,
and network architecture for network deployment.
Understand documentation, life-cycle, change, and configuration management
processes and procedures.
Grasp virtualization, cloud service models, elasticity, and scalability to apply
cloud concepts.
Monitor networks for high availability and resolve connectivity issues to
maintain network performance.
Establish secure networks and mitigate vulnerabilities to strengthen security.
Diagnose and resolve network issues using appropriate tools for effective
troubleshooting.
Exam details
Exam version: V9
Exam series code: N10-009
Launch date: June 20, 2024
Number of questions: maximum of 90, a mix of multiple-choice and
performance-based questions
Retirement: usually three years after launch (estimated 2027)
Duration: 90 minutes
Passing score: 720 (on a scale of 100-900)
Languages: English, German, Japanese, Portuguese, and Spanish
Recommended experience: CompTIA A+ certification, with 9 to 12 months of
hands-on experience in a junior network administrator or network support
technician role
NICE and DoD 8140 work roles: technical support specialist, network operations
specialist, and system administrator
Network+ (V9) exam objectives summary
Networking concepts (23%)
OSI model layers: physical, data link, network, transport, session,
presentation, application.
Networking appliances: routers, switches, firewalls, IDS/IPS, load balancers,
proxies, NAS, SAN, and wireless devices.
Cloud concepts: NFV, VPC, network security groups, cloud gateways, deployment
models (public, private, hybrid), service models (SaaS, IaaS, PaaS).
Ports and protocols: FTP, SFTP, SSH, Telnet, SMTP, DNS, DHCP, HTTP, HTTPS, SNMP,
LDAP, RDP, SIP.
Traffic types: unicast, multicast, anycast, broadcast.
Transmission media: wireless (802.11, cellular, satellite), wired (fiber,
coaxial, DAC).
Transceivers and connectors: SC, LC, ST, MPO, RJ11, RJ45, F-type, BNC.
Network topologies: mesh, hybrid, star/hub and spoke, spine and leaf,
point-to-point, three-tier, and collapsed core.
IPv4 addressing: public vs. private, APIPA, RFC1918, loopback, subnetting (VLSM,
CIDR), and address classes (A, B, C, D, E).
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Network implementation (20%)
Routing technologies: static and dynamic routing (BGP, EIGRP, OSPF), route
selection, NAT, PAT, FHRP, VIP, and subinterfaces.
Switching technologies: VLANs, interface configuration, spanning tree, MTU, and
jumbo frames.
Wireless devices: channels, frequency options, SSID, network types, encryption,
guest networks, authentication, antennas, and access points.
Physical installations: installation implications, power considerations, and
environmental factors.
Network operations (19%)
Documentation: physical vs. logical diagrams, rack diagrams, cable maps,
network diagrams, asset inventory, IPAM, SLA, and wireless surveys.
Life-cycle management: EOL, EOS, software management, and decommissioning.
Change management: request process tracking.
Configuration management: production, backup, baseline configurations.
Network monitoring: SNMP, flow data, packet capture, baseline metrics, log
aggregation, API integration, and port mirroring.
Disaster recovery: RPO, RTO, MTTR, MTBF, cold/warm/hot sites,
active-active/passive, and testing.
Network services: DHCP, SLAAC, DNS, NTP, PTP, and NTS.
Access and management: VPNs, SSH, GUI, API, and console.
Network security (14%)
Logical security: encryption (data in transit/rest), PKI, IAM, MFA, SSO,
RADIUS, LDAP, SAML, TACACS+, time-based authentication, authorization, least
privilege, role-based access control, and geofencing.
Physical security: cameras and locks.
Deception technologies: honeypot and honeynet.
Security terminology: risk, vulnerability, exploit, threat, and CIA triad.
Audits and compliance: data locality, PCI DSS, and GDPR.
Network segmentation: IoT, IIoT, SCADA, ICS, OT, guest, and BYOD.
Types of attacks: DoS/DDoS, VLAN hopping, MAC flooding, ARP poisoning/spoofing,
DNS poisoning/spoofing, rogue devices/services, evil twin, on-path attack, and
social engineering (phishing, dumpster diving, shoulder surfing, tailgating).
Security features and defense: device hardening, NAC, key management, ACL,
URL/content filtering, trusted vs. untrusted zones, and screened subnet.
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Network troubleshooting (24%)
Troubleshooting methodology: identifying the problem, establishing a theory,
testing, planning, and implementing a solution, verifying functionality, and
documenting findings.
Cabling and physical interface issues: cable issues (incorrect type, signal
degradation, improper termination, TX/RX transposed), interface issues
(increasing counters, port status), and hardware issues (PoE, transceiver
mismatch, signal strength).
Network services issues: switching issues (STP, VLAN assignment, ACLs), routing
issues (routing table and default routes), address pool exhaustion, and
incorrect gateway/IP/subnet mask.
Performance issues: congestion, latency, packet loss, and wireless interference.
Tools and protocols: protocol analyzers, command line tools, cable testers, and
Wi-Fi analyzers.
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QUESTION 1
A client wants to increase overall security after a recent breach. Which of the
following would be best to implement? (Select two.)
A. Least privilege network access
B. Dynamic inventeries
C. Central policy management
D. Zero-touch provisioning
E. Configuration drift prevention
F. Subnet range limits
Answer: A,C
Explanation:
To increase overall security after a recent breach, implementing least privilege
network access and
central policy management are effective strategies.
Least Privilege Network Access: This principle ensures that users and devices
are granted only the
access necessary to perform their functions, minimizing the potential for
unauthorized access or
breaches. By limiting permissions, the risk of an attacker gaining access to
critical parts of the
network is reduced.
Central Policy Management: Centralized management of security policies allows
for consistent and
streamlined implementation of security measures across the entire network. This
helps in quickly
responding to security incidents, ensuring compliance with security protocols,
and reducing the
chances of misconfigurations.
Network Reference:
CompTIA Network+ N10-007 Official Certification Guide: Discusses network
security principles,
including least privilege and policy management.
Cisco Networking Academy: Provides training on implementing security policies
and access controls.
Network+ Certification All-in-One Exam Guide: Covers strategies for enhancing
network security and
managing policies effectively.
QUESTION 2
A network administrator needs to connect two routers in a point-to-point
configuration and conserve IP space. Which of the following subnets should the
administrator use?
A. 724
B. /26
C. /28
D. /30
Answer: D
Explanation:
Using a subnet mask is the most efficient way to conserve IP space for a
point-to-point
connection between two routers. A subnet provides four IP addresses, two of
which can be
assigned to the router interfaces, one for the network address, and one for the
broadcast address.
This makes it ideal for point-to-point links where only two usable IP addresses
are needed.Reference:
CompTIA Network+ study materials and subnetting principles.
QUESTION 3
A network administrator determines that some switch ports have more errors
present than
expected. The administrator traces the cabling associated with these ports.
Which of the following
would most likely be causing the errors?
A. arp
B. tracert
C. nmap
D. ipconfig
Answer: D
QUESTION 4
A user notifies a network administrator about losing access to a remote file
server.
The network administrator is able to ping the server and verifies the current
firewall rules do not block access to
the network fileshare. Which of the following tools wold help identify which
ports are open on the remote file server?
A. Dig
B. Nmap
C. Tracert
D. nslookup
Answer: B
Explanation:
Nmap (Network Mapper) is a powerful network scanning tool used to discover hosts
and services on
a computer network. It can be used to identify which ports are open on a remote
server, which can
help diagnose access issues to services like a remote file server.
Port Scanning: Nmap can perform comprehensive port scans to determine which
ports are open and
what services are running on those ports.
Network Discovery: It provides detailed information about the hosts operating
system, service
versions, and network configuration.
Security Audits: Besides troubleshooting, Nmap is also used for security
auditing and identifying
potential vulnerabilities.
Network Reference:
CompTIA Network+ N10-007 Official Certification Guide: Covers network scanning
tools and their uses.
Nmap Documentation: Official documentation provides extensive details on how to
use Nmap for
port scanning and network diagnostics.
Network+ Certification All-in-One Exam Guide: Discusses various network
utilities, including Nmap,
and their applications in network troubleshooting.
QUESTION 5
Which of the following allows for the interception of traffic between the source
and destination?
A. Self-signed certificate
B. VLAN hopping
C. On-path attack
D. Phishing
Answer: C
Explanation:
An on-path attack (formerly known as a man-in-the-middle (MITM) attack) involves
intercepting and
potentially altering communications between two parties without their knowledge.
This can be done
via techniques like ARP poisoning, rogue access points, or SSL stripping.
Breakdown of Options:
A . Self-signed certificate “ These are untrusted SSL certificates but do not
intercept traffic.
B . VLAN hopping “ VLAN hopping exploits VLAN misconfigurations but does not
necessarily intercept communications.
C . On-path attack “ Correct answer. This intercepts and modifies traffic
between two endpoints.
D . Phishing “ Phishing tricks users into revealing credentials rather than
intercepting network traffic.
Reference:
CompTIA Network+ (N10-009) Official Study Guide “ Domain 3.2: Explain common
security concepts.
NIST SP 800-115: Guide to Security Testing and Assessments
QUESTION 6
A network technician is terminating a cable to a fiber patch panel in the MDF.
Which of the following connector types is most likely in use?
A. F-type
B. RJ11
C. BNC
D. SC
Answer: D
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1. What is the passing score for N10-009?
The passing score is typically 720 on a scale of 100–900.
2. How long is the exam?
The exam duration is 90 minutes.
3. How many questions are in the exam?
You can expect up to 90 questions.
4. Is Network+ good for beginners?
Yes, it is ideal for entry-level networking professionals.
5. What types of questions are included?
Multiple-choice and performance-based questions.
6. How long should I study for N10-009?
Usually 6–10 weeks depending on experience.
7. Are exam dumps useful?
They can help for practice, but understanding concepts is essential.
8. What jobs can I get after passing?
Network Administrator, IT Support Specialist, Network Technician.
9. Is N10-009 better than N10-008?
Yes, it includes updated technologies and security topics.
10. Can I pass without hands-on experience?
Yes, but basic practical knowledge is highly recommended.
