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Realistic PBQs, hands-on labs on a simulated Windows, Linux and Cisco desktop, and full exam simulations for 15 IT certifications. Free to start.

Start studying free See a real question

Free tier, no card: 30 study questions a day, 3 labs, 3 PBQs per certification, the free games, unlimited flashcards and every free tool. Pro starts with a 7-day trial; a card is required and you can cancel before day 7. Pro is $15/month or $99/year, with a 14-day refund.

First ten minutes: pick your exam, take one lesson, answer one question, and see one thing you can prove.

CompTIA Security+ · CompTIA Network+ · Cisco CCNA · CompTIA Linux+ · ISC2 CISSP · AWS SAA and more

Certifications live
15 certifications: 15
Performance-based questions
359 PBQs: 359
Hands-on labs
744 labs: 744
teaching model / live
PING / STUDY BUDDY
Try a node. Ping watches the cursor.Tap a node. Ping follows along.

One objective at a time.

Five-minute lessons, then a real exam-style question before you move on.

Ping: start with what the question rules out.

Ping, your study buddy. This is a live model of the study loop, not a screenshot.

Inspect a real question.

This is one of 23,037 original practice questions across 15 certifications. Open the answer and read the reasoning before you create an account.

CompTIA Security+ · Automation and orchestration · Original SecLern item

Try the next one in the app

Sample question · Security+

A SOC wants new phishing inboxes quarantined automatically instead of waiting for an analyst to click. Which automation use case best describes this change?

  1. Enabling or disabling services and access
  2. Continuous integration and testing
  3. User provisioning
  4. Guard rails on infrastructure templates
Show the answer and why

Answer: A. Enabling or disabling services and access.

Quarantining a mailbox cuts off access as the containment action, and doing it from a detection rule is the enabling or disabling services and access use case. You gain reaction time because no human is in the loop.

Scored the same way in practice: the explanation is always visible after you answer.

TCP 443 / implicit deny / OSPF area 0 / chmod 640 / MITRE ATT&CK / AES-256 / VLAN 20 / RADIUS / subnet /26 / least privilege  
incident response / zero trust / SPF and DKIM / container escape / TLS 1.3 / SSH key auth / risk register / packet capture / MFA fatigue / backup restore  

They watch hours of videos, then freeze on the first PBQ.

Reading feels like progress. Recall is what gets you through the exam.

So SecLern makes you use what you learn the same day you learn it.

See the loop
WatchedCan recall

You remember what you practice, not what you watch.

The PBQs most people dread are where you practice most.

Real exams open with PBQs, and they are worth more than a guess. SecLern has 359 PBQs across 15 certifications, graded on the end state, with partial credit where the exam allows it. You get a real task, not a screenshot of one.

  • Drag and dropSort rules, risks or evidence into the right order.
  • ConfigurationWrite firewall, ACL or cloud rules and check the end state.
  • Log analysisRead a stream, find the malicious lines, name the attack.
  • TopologyFix a network path across switches, routes and NAT.
Practice a PBQ
PBQ / physical controlsdemo

Match each risk in the records room to the control that handles it. This is graded on the end state, with partial credit.

  • Staff follow someone through the server room door
  • A cleaner props the fire door open
  • A visitor leaves with their badge

220-120137 PBQs

220-120239 PBQs

N10-00939 PBQs

SY0-70156 PBQs

SY0-80137 PBQs

CS0-00435 PBQs

All certifications359 PBQs

Try it: change a firewall rule and see the probes change
  • HTTPS from anywhere
  • Telnet (block it)
  • SSH from admins only
  • HTTPS (port 443): connected
  • SSH (port 22): connected
  • Telnet (port 23): refused by the rule
  • HTTP (port 80): no rule matches, so the default deny drops it

A teaching model of rule order and default deny, not a real firewall.

Practice the job, not just the wording.

Performance-based questions carry real weight on exam day. SecLern labs run on a simulated network: change a rule, watch the probes flip, then read why. The same skill the exam grades, without a virtual machine or a credit card.

Try itChange a firewall rule. Type ping web in the terminal.
  • Quick lab1 to 10 min
  • In-depth20 to 90 min
  • Capstonemulti-part
Find labs in the Academy

The clock is real. The questions are ours.

Full simulations put you on a real exam clock, with performance-based questions (PBQs) first, then original multiple-choice questions, scored on the same 100 to 900 scale.

  • SY0-701 simulation: 56 PBQs, then 85 multiple-choice, 90 minutes
  • Scored 100 to 900, with 750 to pass
  • Every miss becomes a note and a drill
See exam simulations

Full simulations are part of Pro. Free keeps practice, labs, PBQs, flashcards and games.

Full simulation / demo 90:00PBQ 1 of 5

Match each risk in the records room to the control that handles it. This is graded on the end state, with partial credit.

  • Staff follow someone through the server room door
  • A cleaner props the fire door open

Sample PBQ, question and numbers. Not a real exam result.

15 exams. One path.

Start where you are, then move one rung at a time. Every certification has lessons, questions, PBQs and labs mapped to its published objectives.

Five stages. Swipe, scroll or use the arrows.

Start here

No background, first IT job

220-1201Foundation

CompTIA A+ Core 1 220-1201

PC hardware, mobile, and networking basics

help desk

37 PBQs

Live nowOpen
220-1202Foundation

CompTIA A+ Core 2 220-1202

Operating systems, security, and troubleshooting

help desk

39 PBQs

Live nowOpen
AZ-900Foundation

Microsoft Azure Fundamentals AZ-900

Microsoft cloud concepts, starting from zero

help desk, cloud engineer

0 PBQs

Live nowOpen

Network

Move into infrastructure

N10-009Foundation

CompTIA Network+ N10-009

Networks, routing, and subnetting

help desk, network admin

39 PBQs

Live nowOpen
200-301Associate

Cisco CCNA 200-301

Cisco routing, switching, and automation

network admin

8 PBQs

Live nowOpen

Security core

SOC and systems work

SY0-701Associate

CompTIA Security+ SY0-701

The baseline security cert for SOC work

help desk, soc analyst

56 PBQs

Live nowOpen
SY0-801Associate

CompTIA Security+ SY0-801

New Security+ with AI risk in scope

help desk, soc analyst

37 PBQs

Live nowOpen
CS0-004Professional

CompTIA CySA+ CS0-004

Threat detection, logs, and incident response

soc analyst

35 PBQs

Live nowOpen
XK0-006Associate

CompTIA Linux+ XK0-006

Linux administration, containers, and automation

sysadmin, cloud engineer

8 PBQs

Live nowOpen

Go deep

Offence, architecture, leadership

PT0-003Professional

CompTIA PenTest+ PT0-003

Plan, exploit, and report a penetration test

pentester

20 PBQs

Live nowOpen
CAS-005Expert

CompTIA SecurityX CAS-005

Expert security architecture, graded pass or fail

architect

20 PBQs

Live nowOpen
CISSPExpert

ISC2 CISSP

Eight domains of senior security leadership

manager, architect

0 PBQs

Live nowOpen
CISMExpert

ISACA CISM

Security governance, risk, and program management

manager

20 PBQs

Live nowOpen

Cloud side

Add cloud and AI security

SAA-C03Associate

AWS Solutions Architect Associate SAA-C03

Resilient, well-architected design on AWS

cloud engineer, architect

20 PBQs

Live nowOpen
SC-500Professional

Microsoft SC-500 Cloud and AI Security

Securing Microsoft cloud and AI workloads

cloud engineer, soc analyst

20 PBQs

Live nowOpen

All 15 certifications, one account.

Compare every cert

Study time varies with your background. Level labels describe the exam, not the job title you get.

Short games that make recall stick.

30 games, each with a real mechanic. Triage a phishing message, guard a port, type an acronym before the clock drains it. They feed the same weak-spot model as practice.

Play the games
inbox triage / demodemo

From IT Service Desk <it-helpdesk@seclern-support.example>

Subject Action required: mailbox storage full

Your mailbox has reached its limit. Sign in within 2 hours or incoming mail will be held.

https://seclern-support.example/mailbox

Trusted by 100s of students.

These numbers come from the same catalogue the app reads, not from a marketing deck.

Read the study guides
certifications
15
practice questions
23,037
PBQs
359
hands-on labs
744
lessons
506
games
30

Learn it. Try it. Prove it.

One loop, repeated until exam day. Learn a small idea, use it in a question or a lab, then prove it under the clock. Each card is one hand-off.

  • 15 certifications, one interface
  • 30 games and a campaign
  • Weak spots pick the next session
Open the Academy
Learn

Five minutes, one idea, one check.

  • A short lesson mapped to one objective
  • A check that proves the idea landed
  • Key terms saved to your notes

You use each idea in a question before the next lesson opens.

Practice

Type it. Break it. Fix it.

  • Labs run in the browser, no VM
  • The simulator grades the end state
  • Ping gives hints, never the answer

Every lab is a task you could meet on the job.

Prove

Exam conditions. Original questions.

  • Performance-based questions first
  • Then multiple-choice, like the real exam
  • A readiness estimate, labelled simulated

Before 30 graded answers, it tells you what to study next.

Stuck at midnight? Ping gives hints, not answers.

Ping watches your mistakes, then climbs a hint ladder. A nudge, then a smaller nudge, then the working. Ping stays hidden in every exam and assessment, because that is the point.

  • Hint only, never the exact answer
  • Hidden in exams and assessments
  • Learns from your missed topics
Ping / hint ladderscripted demo

Ping

Watching the rule order.

  • I keep blocking HTTPS every time I touch the firewall rules.

Free to start. Pro when exam day gets close.

30 practice questions a day, the free labs and PBQ tasters, flashcards and the free games. Pro adds full exam simulations, every lab and PBQ, every certification and Ping. No fake countdowns, no invented scarcity.

  • Pro

    Best value, save 45%

    Billed once a year. Cancel anytime.

    per year. About $8.25 a month

    Total $99 a year, effectively $8.25 a month.

    Monthly is $15 a month.

    $0 today. $99 on 7 November 2026, then every year until you cancel.

    Everything that turns study into exam readiness: full simulations, every lab, every certification and Ping.

    • Full exam simulations with readiness grades
    • Every lab and PBQ, every certification
    • Ping, every game and the boss campaign
    • Unlimited questions, notes and AI recaps
    Start 7-day Pro trial

    Card required. Cancel before day 7 and you are never charged. Then $99/year.

  • Exam Sprint

    90 days, no renewal

    One payment for one booked exam date.

    one time. 90 days

    Total $29, once. No renewal, no saved card.

    If you buy today, access runs to 29 January 2027.

    Everything in Pro for 90 days, one payment, no renewal. Built for a booked exam date: full simulations, every lab, every certification, Ping and the campaign.

    • Full exam simulations with readiness grades
    • Every lab and PBQ, every certification
    • Ping, every game and the boss campaign
    • Unlimited questions, notes and AI recaps
    Choose Exam Sprint

    Goes back to Free after 90 days. No renewal.

  • Free, no card

    Free includes the first module of each path, 30 questions a day, 3 labs and PBQs, unlimited flashcards and the free games.

    Keep studying free

Prices in USD. Every paid plan has a 14 day refund window. Exam simulations are not part of Free.

Questions, answered.

The things people ask before they start: what is free, what Pro adds, and how the practice is built.

Read every answer

No, and any site that claims that is selling stolen content, which can get your certification revoked. Every SecLern question is written originally for this site and mapped to the public exam objectives. You practice the same skills and scenarios, never memorized answers.

  1. 1Pick your exam. One minute, and every cert keeps its own progress.
  2. 2Take the first lesson. A short read, then one real question.
  3. 3See your plan. Today's session is ready, scaled to your time.

Pick a date. Do the work. Walk in ready.

Start with ten questions tonight. The plan builds from there.

Start studying free Compare plans