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How to Pass CompTIA Security+ SY0-701 in 2 Months (839 Score Breakdown + Resources)

How I Scored 839/900 on CompTIA Security+ SY0-701 — 2-Month Prep Strategy That Actually Worked

Score: 839/900  |  Exam: CompTIA Security+ SY0-701  |  Prep Time: 2 Months  |  Total Questions: 76 (including 3 PBQs)

I'm not going to sugarcoat it — CompTIA Security+ is not easy, but it is very passable with the right strategy. I cleared it with an 839 out of 900, and in this post I'll share exactly how I did it, domain by domain, so you can replicate the approach without wasting time.

My 2-Month Study Plan

Month 1 — Domain-by-domain study: Read, take notes, and build comparison tables and mnemonics for tricky concepts.

Month 2 — Heavy practice testing: Full focus on practice tests and PBQ simulations. Time management drills every session.

The biggest mistake people make is spending 90% of their time reading and only 10% practicing. I flipped that in month 2 — and it made all the difference.

Domain 1 — General Security Concepts

What to focus on:

  • Types of security controls — physical, technical, and administrative.
  • Cryptography basics — symmetric vs asymmetric, hashing algorithms, and use cases.
  • Certificate concepts — PKI, CA, certificate chain, and renewal.
  • Zero Trust architecture — control plane vs data plane.
  • WPA2 vs WPA3 differences — tested more than you'd expect.

Memorization tip: Group controls by type — preventive, detective, corrective, deterrent. Knowing the category instantly narrows your answer on scenario questions.

Domain 2 — Threats, Vulnerabilities & Mitigations

What to focus on:

  • All social engineering attack types — phishing, vishing, smishing, spear phishing, whaling, business email compromise (BEC).
  • Malware types — ransomware, RAT, rootkit, keylogger, worm vs virus.
  • Application attacks — SQL injection, XSS, buffer overflow, CSRF.
  • Vulnerability scan vs penetration test — know when to use each.
  • EOL (End of Life) vs legacy systems — a common scenario trap on the exam.

Exam trap: If the question says "which is the MOST immediate action" after discovering a vulnerability — the answer is almost always containment, not remediation.

Domain 3 — Security Architecture

What to focus on:

  • Firewall types — stateful vs stateless vs NGFW (Next-Generation Firewall).
  • Cloud models — IaaS, PaaS, SaaS and shared responsibility model.
  • RAID levels — RAID 0 (no redundancy), RAID 1 (mirroring), RAID 5 (striping with parity), RAID 10 (mirroring + striping).
  • Disaster recovery terms — RPO, RTO, MTTR, MTBF. Understand the difference between hot, warm, and cold sites.
  • 3-2-1 backup rule — 3 copies, 2 different media, 1 offsite.

Memorization tip: RPO = how much data you can afford to lose. RTO = how fast you must recover. These two are constantly confused — keep them clear.

Domain 4 — Security Operations

What to focus on:

  • Incident response phases — Preparation → Identification → Containment → Eradication → Recovery → Lessons Learned. Memorize the order.
  • Log analysis — which log to check for which incident (Windows Event Log, firewall logs, DNS logs, authentication logs).
  • Security tools — SIEM, SOAR, EDR, IDS vs IPS. Know what each does and when to use it.
  • Change management process — why it matters for security operations.

Exam trap: IDS detects and alerts. IPS detects and blocks. If the question says the system is in "passive mode" — it's IDS, not IPS.

Domain 5 — Security Program Management & Oversight

What to focus on:

  • Risk formulas — Risk = Likelihood × Impact, ALE = SLE × ARO.
  • Agreement types — NDA (confidentiality), SLA (service levels), MOU (intent between parties), MSA (ongoing relationship). Know when each is used.
  • Data roles — owner, custodian, processor, controller.
  • Compliance and regulations — GDPR basics, HIPAA, data classification levels.

Memorization tip: For risk — ALE tells you the annual cost of a risk. Use it to justify security spend. If ALE is lower than the cost of a control, you accept the risk.

Critical Port Numbers You Must Memorize

These come up directly and in scenario questions. Know them cold.

Port Service Note
20 / 21FTP20 = data transfer, 21 = control
22SSH / SFTP / SCPSecure remote access and file transfer
23TelnetInsecure — almost always the wrong answer
25SMTPEmail sending (outbound)
53DNSUDP by default; TCP for zone transfers
67 / 68DHCP67 = server, 68 = client
80HTTPUnencrypted web traffic
110POP3Email retrieval — insecure
143IMAPEmail retrieval with folder sync
389LDAPDirectory services
443HTTPSEncrypted web (TLS)
445SMBFile sharing — exploited by WannaCry
465 / 587SMTPSSecure email sending
636LDAPSSecure LDAP
993IMAPSSecure IMAP
995POP3SSecure POP3
1433MS SQLMicrosoft SQL Server
3306MySQLMySQL database
3389RDPRemote Desktop — major attack surface
8080HTTP AlternateDev/proxy web traffic

Pattern to remember: The 900s are secure versions of the 100s — 993 = secure 143 (IMAPS), 995 = secure 110 (POP3S). Group them and the table memorizes itself.

PBQ Strategy — How I Finished 3 PBQs in 15–18 Minutes

The Security+ SY0-701 exam has 76 questions total including 3 PBQs (Performance-Based Questions). Most candidates panic on PBQs because they involve drag-and-drop, simulation, or log analysis tasks. I finished all 3 in 15–18 minutes. Here is how:

Use AI tools to practice PBQs before the exam. This was my single biggest advantage. I used AI to simulate real PBQ-style scenarios — SSH hardening, certificate chain ordering, log analysis, network vulnerability triage. By exam day, the PBQs felt familiar because I had already practiced the logic, not memorized specific answers.

  • Read the scenario carefully — the answer is almost always embedded in the information already given to you.
  • Use smart elimination — remove obviously wrong options first, then decide between the remaining ones.
  • Don't overthink it — PBQs test practical judgment, not trick knowledge.
  • Do PBQs first — they appear at the start of the exam. Knock them out while your mind is fresh.

I am confident I scored 90%+ on PBQs, and it significantly boosted my final score.

Time Management on Exam Day

With 76 questions and 90 minutes, that is roughly 70 seconds per question. My approach:

  • Complete PBQs first — they take longer and require focus. Get them done early.
  • Flag and move — if a question stumps you, flag it and keep moving. Never sit on one question for more than 2 minutes.
  • Last 10 minutes — review flagged questions only. Do not second-guess answers you have already submitted.

Final Honest Advice

Don't buy 10 books. Don't watch 40 hours of YouTube. Pick one solid resource, run practice tests daily in month 2, and use AI tools to simulate PBQ scenarios. That combination — focused notes + heavy practice testing + AI-assisted PBQ prep — is exactly what pushed me to 839.

Want My Quick Revision Notes?

Let me be honest — these are not a full course or textbook. I did not make them to teach Security+ from scratch.

I built these notes throughout my 2 months of practice tests — every time I got a question wrong, every concept I found confusing, every pair of similar-sounding terms that kept tripping me up — I captured it. The result is a compact, focused set of notes designed for 2–3 reads right before your exam.

What makes them different:

  • Built from real practice test mistakes — not copied from a textbook.
  • Packed with comparison tables for ambiguous topics where two answers always look the same.
  • Easy-to-remember techniques and mnemonics for tricky concepts.
  • Covers the topics that actually confused me — which means they will likely confuse you too.
  • 9 PBQ practice scenarios to build hands-on confidence before exam day.

These notes are the result of my real exam preparation, my actual score, and a lot of hard work. I created them by focusing only on the concepts, patterns, and tricky areas that actually matter for CompTIA Security+ — so you can study smarter and revise faster. They also include PBQ-based preparation, which personally helped me a lot and gave me a big confidence boost before the exam.

While I cannot guarantee any score, I genuinely believe these notes can strongly support your preparation if you revise them 2–3 times before exam day. Think of them as your last-minute sharpening tool — not a replacement for study, but the best companion for the final stretch.

If you want to refer my notes, you can download my notes including some PBQ examples from the link below. I am sure it will help you to pass the exam.

Download My Security+ SY0-701 Study Notes + PBQ Bundle

Disclaimer: These are personal study notes based on my own preparation. Not affiliated with or endorsed by CompTIA.

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