CompTIA Practice Test PDF (Free Printable 2026)

CompTIA certifications are among the most recognized vendor-neutral credentials in the IT industry, covering everything from entry-level hardware support to advanced cybersecurity analysis. If you are preparing for CompTIA A+, Network+, Security+, or any other CompTIA exam, working through practice questions is one of the most effective study methods available. This page gives you a free printable PDF loaded with CompTIA practice questions you can study at your own pace, away from a screen.

The PDF draws questions from across the CompTIA certification stack, with emphasis on the A+ exam since it is the standard entry point for most IT careers. Use the questions to test your recall of hardware components, operating system troubleshooting, network fundamentals, and security concepts. Identify the domains where you score lowest, review the relevant material, then retest until your confidence is consistent across all areas.

CompTIA A+ Hardware and Operating Systems

The A+ certification is the industry standard for validating foundational IT skills, and it is split across two separate exams. Core 1 (220-1101) focuses on mobile devices, networking, hardware, virtualization, cloud computing, and hardware troubleshooting. Core 2 (220-1102) covers operating systems, security, software troubleshooting, and operational procedures. You must pass both exams to earn the A+ credential, and employers treating A+ as a hiring requirement typically expect candidates to hold both vouchers.

On the hardware side, expect questions about CPU socket types, RAM standards (DDR4 versus DDR5), storage interfaces (SATA, NVMe, M.2), and the role of the BIOS/UEFI in the boot sequence. Peripheral connections—USB generations, Thunderbolt, DisplayPort, HDMI—appear regularly in scenario-based questions asking you to select the right cable or adapter for a given situation. Laptop-specific topics include replacing batteries, keyboards, and screens, as well as understanding how the docking station and port replicator expand a mobile workspace.

Operating System Troubleshooting Scenarios

A+ Core 2 places heavy emphasis on troubleshooting Windows, macOS, Linux, and mobile operating systems. You should be comfortable navigating the Windows registry, using the command line (ipconfig, netstat, sfc /scannow, chkdsk, diskpart), and interpreting error messages such as blue screens, boot failures, and profile corruption. Common exam scenarios present a symptom—slow performance, application crash, failed Windows update—and ask you to identify the most likely cause and the correct remediation step. Knowing the Windows Event Viewer categories and how to read basic log entries is a practical skill that the exam tests directly.

CompTIA Network+ Fundamentals

Network+ validates that a technician understands how networks are designed, implemented, and troubleshot. The exam covers the OSI and TCP/IP models in detail, and you must be able to match protocols to their correct layers and port numbers. Memorizing common port assignments—HTTP (80), HTTPS (443), DNS (53), DHCP (67/68), SSH (22), RDP (3389), FTP (20/21), SMTP (25), IMAP (143), SNMP (161)—is essential because protocol-to-port matching is a reliable source of exam questions.

Network design questions test subnetting using CIDR notation, the purpose of VLANs in segmenting broadcast domains, and the function of network devices including switches, routers, access points, and firewalls. You should understand routing protocols at a conceptual level, know the difference between static and dynamic routing, and recognize when to apply NAT to translate private IP addresses for internet access. Cable types (Cat5e, Cat6, Cat6a, fiber single-mode versus multi-mode) and their maximum distances and throughput specifications are standard exam territory.

Network Troubleshooting Methodology

Network+ tests a structured troubleshooting approach that mirrors real-world practice. When a user cannot reach the internet, a methodical technician checks the local device configuration first (ipconfig, ping 127.0.0.1), then the default gateway, then DNS resolution, and finally external connectivity. The exam presents scenarios where you must identify the correct next step in this process. Wireless troubleshooting adds complexity: channel overlap, signal interference, incorrect security settings (WPA2 versus WPA3), and SSID broadcast settings are all tested. Packet capture tools and the purpose of a protocol analyzer like Wireshark round out the troubleshooting toolkit.

CompTIA Security+ Security Domains

Security+ is the most widely held entry-level cybersecurity certification and is often the minimum requirement for security-adjacent roles in federal contracting. The current SY0-701 exam covers threats, attacks, and vulnerabilities; cryptography and public key infrastructure (PKI); identity and access management; security architecture; security operations; and security program management. The exam format includes a mix of multiple-choice questions and performance-based questions (PBQs) that ask you to configure a firewall rule, analyze a network diagram, or interpret a log file.

Cryptography is one of the most content-dense domains on Security+. You need to understand symmetric versus asymmetric encryption, common algorithms (AES, RSA, ECC, SHA), hashing versus encryption, and how digital signatures and certificates establish trust. PKI concepts—certificate authorities, certificate revocation via CRL and OCSP, and the chain of trust—tie directly to HTTPS, code signing, and email encryption. Social engineering attacks such as phishing, vishing, spear phishing, and pretexting are tested alongside technical attack types including SQL injection, cross-site scripting, buffer overflow, and pass-the-hash.

Identity, Access, and Incident Response

Identity and access management (IAM) questions cover multifactor authentication (MFA), single sign-on (SSO), federated identity with SAML and OAuth, and the principle of least privilege. Incident response follows a defined lifecycle: preparation, detection and analysis, containment, eradication, recovery, and lessons learned. The exam presents a breach scenario and asks which phase is currently in progress or which action is appropriate next. Understanding the difference between an IDS (intrusion detection system) and an IPS (intrusion prevention system), and knowing when each is appropriate, is a reliable exam topic.

CompTIA Cloud+ and Advanced Certifications

CompTIA's advanced track includes Cloud+, CySA+ (Cybersecurity Analyst), CASP+ (CompTIA Advanced Security Practitioner), and PenTest+. Cloud+ validates the skills to deploy and automate cloud environments, troubleshoot cloud connectivity, and manage cloud security controls. Candidates preparing for Cloud+ should understand infrastructure as a service (IaaS), platform as a service (PaaS), and software as a service (SaaS) deployment models, as well as hybrid and multi-cloud architectures. High availability concepts—load balancing, auto-scaling, geographic redundancy—and cloud storage types (object, block, file) are covered in detail.

CySA+ is a post-Security+ credential aimed at security operations center (SOC) analysts. It covers behavioral analytics, threat hunting, vulnerability management, and SIEM log analysis. CASP+ targets senior security engineers and architects who design enterprise security solutions rather than implement them from a checklist. PenTest+ covers the full penetration testing lifecycle from scoping and reconnaissance through exploitation and reporting. Each of these advanced certifications builds on the Security+ foundation, so a solid A+/Network+/Security+ base makes studying for any advanced tier significantly more efficient.

Building exam confidence requires repeated exposure to questions that mirror the real exam format. Use the PDF to gauge where you stand today, then return to your study materials with specific targets for improvement. For a full online practice experience with score tracking and detailed explanations, use the a+ comptia practice test on PracticeTestGeeks, where questions are organized by certification and domain so you can drill exactly the areas that need the most work.