600+ fully interactive PBQ simulations across all 19 CompTIA certifications. Drag-drop network diagrams, packet capture analysis, firewall configuration, terminal command simulators, log review, cable wiring, and proprietary GUIs, modeled on the question types in the real exam.
Most "PBQ practice" is just multiple choice in disguise. Ours are real simulations.
OSI layers, protocols, troubleshooting steps, firewall rules, forensic chain of custody.
Place devices, route traffic, configure VLANs on real topology diagrams.
Type real commands at simulated CLI prompts with live output validation.
Windows control panel, AWS console, firewall admin, packet capture viewer.
30 interactive PBQs per cert, mapped 1:1 to current CompTIA exam objectives.

Hardware, networking, mobile devices, virtualization, cloud computing, hardware troubleshooting.
Start PBQs
Operating systems, security, software troubleshooting, operational procedures.
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Networking concepts, implementations, operations, security, troubleshooting.
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General security concepts, threats, vulnerabilities, mitigations, security architecture.
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Security operations, vulnerability management, incident response, reporting.
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Engagement planning, reconnaissance, attacks, post-exploitation, reporting.
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Governance, risk, security architecture, security engineering, security operations.
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System management, security, scripting, containers, automation, troubleshooting.
Start PBQs
Cloud architecture, deployment, operations, security, troubleshooting.
Start PBQs
Multi-cloud networking, hybrid connectivity, cloud security, automation.
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Server hardware, administration, security, networking, troubleshooting.
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IT concepts, infrastructure, applications, software development, security basics.
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Data concepts, mining, analysis, visualization, governance, quality.
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Database fundamentals, deployment, management, security, troubleshooting.
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Mathematics, statistics, modeling, ML/AI, operations, deployment.
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Project management lifecycle, tools, communication, change management.
Start PBQsEvery PBQ uses real exam-style interactions, not mockups.
Map OSI layers to functions, protocols to ports, troubleshooting steps to order.
Place routers, switches, firewalls, APs onto network diagrams with cabling.
Wireshark-style frame analysis with expandable protocol trees and fill-in fields.
Parse SSH/web/firewall logs to identify attacks, attribution, and success.
Configure ACLs by dragging rule labels into firewall rule slots on diagrams.
Type ipconfig, netstat, dig, ps, iptables, nmap commands at live prompts.
Reorder pins for EIA/TIA 568A and 568B straight-through and crossover.
Windows Control Panel, AWS Console, Linux GNOME, mobile device settings.
Place CompTIA troubleshooting model and incident response steps in order.
Every certification above is live. A+ Core 1 and Network+ are good places to start.