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CompTIA · COMPTIA-NET · Intermediate

CompTIA Network+ — Practice Questions and Mock Exam

CompTIA Network+ (N10-009) validates networking skills essential for designing, configuring, managing, and troubleshooting wired and wireless networks.

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Official COMPTIA-NET exam: 720 out of 900 points to pass.

Checked against CompTIA · September 2026 · Current exam version

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Network Implementation1 / 5

A network engineer is implementing content caching at the network edge. Which device stores frequently requested web content locally to reduce bandwidth consumption and improve response times for users?

AlexFull explanation from Alex

A forward proxy with caching sits between internal clients and external web servers, intercepting HTTP requests and storing copies of frequently accessed content locally. Cache hits are served directly from the proxy, reducing WAN bandwidth and improving response times. Per RFC 9111 (HTTP Caching, which obsoletes RFC 7234), caching proxies use Cache-Control headers, validators such as ETags, and freshness lifetimes to determine when cached content can be reused. A VPN concentrator provides encrypted tunnels, not caching. A load balancer distributes traffic across servers. A DNS resolver translates domain names to IPs. Reverse proxies and CDNs can also cache web content, but among the listed options, the forward caching proxy is the device designed to store and serve web content locally for internal users to reduce bandwidth consumption. Ref: RFC 9111 (HTTP Caching).

Sourcecomptia.org

Network Operations2 / 5

A network administrator is reviewing configuration backup strategies. Which approach ensures that the MOST RECENT configuration can be restored if a device fails?

AlexFull explanation from Alex

Automated change-triggered configuration backups keep the most recent device configuration recoverable. When a configuration management tool (e.g., Ansible, Oxidized, RANCID) detects or is notified of a change, it can capture and version the new config and store it off-device. Printing configs is impractical and outdated. Annual backups leave gaps, so changes between maintenance windows can be lost. Storing backups only on the device means a failure can lose both config and backup. Best practice: automate on every change, store off-device with version history, compare against a baseline/golden configuration, and periodically test restores. For Cisco: copy running-config tftp sends config to a backup server. Ref: CompTIA Network+ N10-009 Objective 3.1 (configuration management), NIST SP 800-53 CP-9 (System Backup).

Sourcecisco.com

Network Implementation5 / 5

A network engineer needs to configure a switch port to carry traffic for VLANs 10, 20, and 30 between two switches. Which port type should be configured?

AlexFull explanation from Alex

Switch port types are fundamental to Network Implementation. Access port: belongs to a single VLAN, carries untagged traffic. Used for end devices (PCs, printers, phones). The switch adds the VLAN tag internally. Trunk port: carries tagged traffic for multiple VLANs using 802.1Q encapsulation. A 4-byte tag is inserted into each frame containing the VLAN ID (12-bit field, supporting 4094 VLANs). The native VLAN is sent untagged. Used for switch interconnections. Port channel: a logical aggregation of multiple physical ports (LACP). Provides bandwidth aggregation, not multi-VLAN support (though a port channel can be configured as either access or trunk). Mirror/SPAN port: copies traffic from other ports for monitoring. For the exam, 'carry multiple VLANs' = trunk, 'single VLAN for end device' = access.

Sourcecisco.com

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What you practice for COMPTIA-NET.

Exam topics, relevant practice and sources you can check.

Understand how networks communicateSee the guide for weighting107 QuestionsPass-IT questions

Connect network models, addressing and infrastructure to the way traffic moves.

  • Explain the Open Systems Interconnection (OSI) layers, common protocols and service ports, and unicast, multicast, anycast or broadcast traffic.
  • Compare network appliances and their functions, and explain topologies, architectural layers and traffic directions.
  • Explain cloud service models, virtual networks and connectivity, including scalability, elasticity and shared environments.
  • Compare wired and wireless media, connectors and transceivers for their capabilities and installation needs.
  • Apply IPv4 addressing and subnetting, distinguishing public, private, link-local and loopback addresses.
  • Explain software-defined networks, VXLAN, zero-trust access, infrastructure as code and IPv6 adoption or coexistence.
Official certification objectives
Install and configure networksSee the guide for weighting89 QuestionsPass-IT questions

Choose routing, switching and wireless settings that fit the physical installation.

  • Explain route selection, static and dynamic routing, address translation and first-hop redundancy.
  • Configure VLANs, switch interfaces, link aggregation, spanning tree and frame-size settings.
  • Select wireless channels, frequencies, antennas and access-point modes, then configure authentication, encryption and guest access.
  • Plan racks, cabling, power and environmental controls, including ventilation, physical access and backup power.
Official certification objectives
Operate and maintain networksSee the guide for weighting87 QuestionsPass-IT questions

Keep network services observable, documented and recoverable.

  • Maintain diagrams, inventories and configuration baselines, and follow lifecycle and change-management procedures.
  • Use logs, packet captures, flow data and monitoring tools to track availability, performance and configuration changes.
  • Explain recovery targets, failure and repair measures, recovery sites and high-availability designs, and validate them through exercises.
  • Configure IPv4 and IPv6 addressing services, name resolution and time synchronization, including their security options.
  • Compare VPNs, management interfaces and jump hosts, including in-band and out-of-band access.
Official certification objectives
Protect network access and trafficSee the guide for weighting67 QuestionsPass-IT questions

Recognize network threats and apply controls that limit their impact.

  • Explain identity, encryption, physical protection and deception, alongside risk, compliance and segmentation for different device groups.
  • Recognize denial-of-service, spoofing, rogue-device, interception, social-engineering and malware attacks and their effects on networks.
  • Harden devices and apply access control, filtering, key management and trusted or untrusted security zones.
Official certification objectives
Troubleshoot network problemsSee the guide for weighting87 QuestionsPass-IT questions

Use a structured process and suitable evidence to find and resolve network faults.

  • Gather symptoms, test a likely cause, plan and apply a fix or escalate, then verify service and document findings throughout.
  • Diagnose cable, signal, connector, transceiver and interface faults, including Power over Ethernet limits.
  • Investigate switching, routing, address allocation and subnet configuration problems.
  • Trace congestion, packet loss, latency and wireless coverage or roaming problems to their cause.
  • Use command-line diagnostics, packet analyzers, discovery protocols and physical test tools to examine network behavior.
Official certification objectives
Question formats you can practice
Multiple Choice
Select one answer.
Multiple Response
Select multiple applicable answers.
Drag & Drop
Match items to the appropriate targets.
Performance-based
Complete a practical task in a simulated environment, following the stated requirements.

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Frequently asked questions

Your preparation

How much study time should I plan for COMPTIA-NET?

For planning, Pass-IT estimates roughly 55–135 hours. Relevant experience may put you toward the lower end; starting from scratch may put you toward the higher end. Your needs may fall outside this range. This is not a time requirement from CompTIA or a promise that you will be exam-ready within that time.

Do you need A+ before Network+?

No. CompTIA recommends A+ and nine to twelve months of networking experience, but neither is required to book. The catalog budget is around 90 hours, and prior support work mostly shortens the concepts domain rather than the troubleshooting one.

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Questions in the app are currently in English. Translations of the sample questions on this page apply only to this preview. Check with CompTIA for the languages available for the official exam.

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Access covers this certification for 12 months. You pay once, with no automatic renewal.

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The guarantee refunds the Pass-IT purchase price for this certification. You need eligible paid access and a Readiness Score of at least 80% from your practice results when you take the exam. This score can only reach 80% after at least 50 answered questions and is not a validated probability of passing. Take the exam during your access period and submit official proof of failing within 14 days. Guarantee terms

About the COMPTIA-NET exam

Where can I take the COMPTIA-NET exam?

Online-proctored (Pearson VUE) or onsite at testing centers.

How long is the CompTIA Network+ exam?

The CompTIA Network+ exam has 90 questions and a 90-minute time limit.

Does CompTIA publish a Network+ pass rate?

No. CompTIA does not publish pass rates for any of its exams, so the percentages that circulate on forums are guesses rather than data. What is published is the scored requirement and the objectives, which is what preparation can actually be aimed at.

How do you renew Network+?

Network+ is valid for three years and renews with 30 continuing-education units inside that window. Passing a higher-level CompTIA certification renews it as well, so Security+ covers it.

How soon can you retake Network+?

The second attempt has no waiting period. Subsequent attempts require a 14-day gap, and CompTIA sets no maximum number of tries.

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Guarantee terms

The guarantee refunds the Pass-IT purchase price for this certification. You need eligible paid access and a Readiness Score of at least 80% from your practice results when you take the exam. This score can only reach 80% after at least 50 answered questions and is not a validated probability of passing. Take the exam during your access period and submit official proof of failing within 14 days.

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