Security+ Exam Tips: How to Pass on Your First Attempt in 2025

Passing Security+ on the first attempt requires three things: thorough content knowledge, extensive practice exam experience, and solid exam strategy. Start by studying all five domains systematically using a video course and a study guide. Take detailed notes and create flashcards for port numbers, acronyms, and key concepts. After building foundational knowledge, take at least 5-7 full-length practice exams and score 80%+ consistently before booking the real exam. On practice exams, review every wrong answer thoroughly — understanding why the correct answer is right is as important as knowing why your choice was wrong. Simulate real exam conditions: time yourself, avoid distractions, and do not pause. On exam day, arrive early, read questions carefully (watch for NOT and EXCEPT qualifiers), and use the process of elimination. Most importantly, stay calm — anxiety is the biggest obstacle to passing.

The most common mistakes candidates make include: rushing through questions without reading all answer choices (especially for choose-multiple questions), spending too much time on PBQs at the beginning of the exam, neglecting Domain 4 (Security Operations) which is the heaviest-weighted domain, underestimating the importance of acronym memorization, failing to practice PBQ formats before the exam, and not taking enough full-length practice exams. Another frequent mistake is over-studying one domain at the expense of others — you need competence across all five domains. Many candidates also fail because they memorize answers instead of understanding concepts. The exam tests application of knowledge through scenario-based questions, not rote memorization.

Before exam day: confirm your exam appointment and location (or test your system for online proctoring), review the CompTIA candidate agreement, and ensure you have valid government-issued photo ID. For online proctoring: test your computer, webcam, microphone, and internet connection in advance. Clear your desk of all materials — no phones, watches, notes, or drinks allowed. Dress professionally (the proctor will see you). On exam day: arrive at least 15 minutes early for in-person testing. For online exams, log in 30 minutes early for system checks. Bring only your ID. Leave your phone and smartwatch in your car or locker. During the exam: flag PBQs and return to them later, use the process of elimination, manage your time (about 1 minute per question), and do not change answers unless you are certain you made a mistake — your first instinct is usually correct.

PBQs are the most challenging part of the Security+ exam for most candidates. Here is the strategy: When you start the exam, briefly look at the first PBQ to understand what it asks, then flag it and skip to the multiple-choice section. Multiple-choice questions are worth the same as PBQs but take less time — maximize your score by answering those first. After completing all multiple-choice questions, return to flagged PBQs with your remaining time. For PBQs, read the scenario carefully, identify what security objective is being tested, and approach logically. Common PBQ types include configuring firewall rules, setting up wireless security (WPA3, MAC filtering), analyzing logs for indicators of compromise, implementing access control models, and setting up a DMZ. Practice PBQ walkthroughs on YouTube from creators like Professor Messer and Jason Dion.

You have 90 minutes for up to 90 questions — roughly 1 minute per question. The clock starts when you begin the exam and does not pause. Recommended time allocation: first 5 minutes to skim all questions and flag PBQs, 60 minutes for multiple-choice questions (about 45 seconds each, saving extra time), 20-25 minutes for PBQs, and 5 minutes for final review. If a question is taking more than 2 minutes, mark it and move on. Unanswered questions count as wrong, so it is better to guess than leave blanks. Most test-takers finish with 5-15 minutes remaining. Use that time to review flagged questions and check for careless mistakes.

Based on exam feedback from recent test-takers, the highest-yield topics include: PKI and cryptography (certificate types, encryption algorithms, key exchange), network security (firewall types, IDS/IPS, VPN protocols, port numbers), identity and access management (MFA, SSO, federation, RBAC vs ABAC), incident response (NIST 800-61 phases, forensic procedures), risk management (quantitative vs qualitative, BIA, SLE/ALE/ARO), and compliance (GDPR, HIPAA, PCI DSS basics). Memorize well-known ports (SSH=22, HTTPS=443, RDP=3389, etc.) and common acronyms — CompTIA provides an acronym list in the exam objectives. Domain 4 (Security Operations) is the heaviest-weighted domain at 25%, followed by Domain 2 (Threats, Vulnerabilities, and Mitigations) at 22%.