Prepare for your certification exam with confidence
Free practice quizzes and timed mock exams for CPHQ, CRCST, CNML, and more, built from each exam's official content outline.
Making you more confident on the certification journey
We provide practice questions and exams for certification exams.
With us you will be better prepared and more confident when taking the exam.
Covering anything from easiest to the trickiest questions across different domains and industries.
We truly believe accelerating your career should be accessible and affordable.
Why Exam321
Built from each exam's official outline, not trivia.
Timed mock exams
Mock exams follow the real exam's time limit and domain weighting, alongside shorter practice quizzes for everyday review.
Sourced from official material
Exam descriptions and content domains are built from certifying-body handbooks and outlines, so you're studying what's actually tested.
Free to practice
Every quiz is free, and you can start practicing without an account or credit card.
An explanation for every answer
Every question explains why the right answer is right, so each quiz teaches you something even when you miss.
Browse by category
Find your certification by field, then jump straight into practice.
Academic & Admissions
2 exams
Counseling
2 exams
Dietary
1 exam
EMS
1 exam
Fitness
8 exams
Food Safety
1 exam
Government & Public Safety
1 exam
Healthcare
1 exam
Healthcare Administration
2 exams
Insurance
1 exam
IT
9 exams
Medical
39 exams
Military
2 exams
Nursing
5 exams
Project Management
3 exams
Real Estate
1 exam
Securities & FINRA
2 exams
Skilled Trades
2 exams
Veterinary
1 exam
All exams A–Z
84 certifications, each with free practice quizzes.
- ACCNS-AG · Adult-Gerontology Clinical Nurse Specialist (ACCNS-AG) Certification
- ACE-CPT · ACE Certified Personal Trainer (ACE CPT) Exam
- ACHPN · Advanced Certified Hospice and Palliative Nurse (ACHPN) Exam
- ACM · Accredited Case Manager (ACM) Certification Exam
- ACON · Advanced Oncology Certified Nurse (ACON)
- ACSM-CEP · ACSM Certified Clinical Exercise Physiologist (ACSM-CEP) Exam
- ACSM-CPT · ACSM Certified Personal Trainer (ACSM CPT) Exam
- ACSM-EP · ACSM Certified Exercise Physiologist (ACSM-EP) Exam
- ACSM-GEI · ACSM Certified Group Exercise Instructor (GEI)
- ADC · IC&RC Alcohol and Drug Counselor (ADC) Exam
- AEMT · Advanced Emergency Medical Technician (AEMT) Exam
- AG-ACNP · Adult-Gerontology Acute Care Nurse Practitioner (AGACNP-BC) Certification
- AGNP · Adult-Gerontology Primary Care Nurse Practitioner (A-GNP) Certification
- AGPCNP · Adult-Gerontology Primary Care Nurse Practitioner (A-GNP) Board Certification
- ALEKS-MATH · ALEKS Math Placement Assessment
- AL-RES · Alabama Real Estate Salesperson License Exam
- AMF · Certificat AMF (AMF Certification)
- BABYBAR · California Baby Bar (First-Year Law Students' Examination, FYLSX)
- CA-PC · California Property & Casualty Insurance License Exam
- CCRN · Critical Care Registered Nurse
- CDCES · Certified Diabetes Care and Education Specialist
- CEN · Certified Emergency Nurse
- CFRN · Certified Flight Registered Nurse
- CGRN · Certified Gastroenterology Registered Nurse (CGRN)
- CHEP · Certified Healthcare Emergency Professional (CHEP)
- CHSE · Certified Healthcare Simulation Educator
- CIC · Certification in Infection Control (CIC)
- CITB-HSE · CITB Health, Safety and Environment (HS&E) Test — Operative/Specialist
- CMC · Cardiac Medicine Certification (CMC)
- CMSRN · Certified Medical-Surgical Registered Nurse
- CMT · Chartered Market Technician (CMT) Level I Exam
- CNA · Certified Nursing Assistant (CNA)
- CNM · Certified Nurse-Midwife
- CNML · Certified Nurse Manager and Leader
- CNN · Certified Nephrology Nurse
- CNOR · Certified Perioperative Nurse
- CNRN · Certified Neuroscience Registered Nurse
- COC · Certified Outpatient Coder (COC)
- COMLEX · COMLEX-USA (Osteopathic Medical Licensing Examination)
- CPB · Certified Professional Biller
- CPCO · Certified Professional Compliance Officer (CPCO)
- CPEN · Certified Pediatric Emergency Nurse
- CPHQ · Certified Professional in Healthcare Quality
- CPHRM · Certified Professional in Healthcare Risk Management (CPHRM) Exam
- CPN · Certified Pediatric Nurse
- CPPM · Certified Physician Practice Manager (CPPM)
- CRA · Clinical Research Associate (CRA)
- CRC · AAPC Certified Risk Adjustment Coder (CRC)
- CRCST · Certified Registered Central Service Technician
- C-RHI · Certified in Reproductive Health and Infertility (C-RHI)
- CRRN · Certified Rehabilitation Registered Nurse
- CTIA · Certified Threat Intelligence Analyst (C|TIA)
- CTRN · Certified Transport Registered Nurse (CTRN)
- EPA-608 · EPA Section 608 Technician Certification
- FLBAR · Florida Bar Examination
- ISC2CC · ISC2 Certified in Cybersecurity (CC)
- ISSACPT · ISSA Certified Personal Trainer (ISSA-CPT)
- N10-009 · CompTIA Network+
- NCAC · NCC AP Addiction Counselor (NCAC I) Certification Exam
- NCLEX-PN · National Council Licensure Examination for Practical Nurses (NCLEX-PN)
- NCLEX-RN · National Council Licensure Examination for Registered Nurses (NCLEX-RN)
- NEC · National Electrical Code (NEC) Electrician Licensing Exam
- NMC-CBT · NMC CBT (Test of Competence, Part 1)
- NSCA-CPT · NSCA Certified Personal Trainer (NSCA-CPT)
- NYLE · New York Law Exam (NYLE)
- NY-REGENTS-ESS · New York Regents Earth and Space Sciences Exam
- OAR · Officer Aptitude Rating (OAR)
- OCN · Oncology Certified Nurse
- PCCN · Progressive Care Certified Nurse
- PMAEE · Philippine Military Academy Entrance Examination (PMAEE)
- PMHBC · Psychiatric-Mental Health Nurse (PMH-BC)
- PMIACP · PMI Agile Certified Practitioner (PMI-ACP)
- PMICPMAI · PMI Certified Professional in Managing AI (PMI-CPMAI)
- PMP · Project Management Professional (PMP)
- RD · Registered Dietitian (RD)
- RHS · Radiation Health and Safety (RHS)
- RNCOB · RNC-OB: Inpatient Obstetric Nursing
- SECPLUS · CompTIA Security+
- SECURITYX · CompTIA SecurityX
- SERVSAFE · ServSafe Food Protection Manager Certification Exam
- SIE · Securities Industry Essentials (SIE) Exam
- TT-CLERICAL · Trinidad & Tobago Public Service Clerical Entrance Examination
- VTNE · Veterinary Technician National Exam
- WCC · Wound Care Certified
Frequently asked questions
Everything you need to know about studying with Exam321.
Is Exam321 free?
Yes. Every practice quiz and mock exam is free. You can start without an account or credit card; on some exams, the later quizzes and the mock exam ask you to sign in with a free account.
How accurate are the practice questions?
Exam descriptions and domain weights are built from official certifying-body handbooks and content outlines, not guesswork. Where a question bank draws directly from a certifying body's own published sample questions, it's marked as a verified reference question.
Do you offer mock exams?
Yes. Each exam has a timed mock exam that follows the real exam's time limit and domain mix. Some are full length and some are shorter; the exam page shows how many questions each one has.
How often is content updated?
New certifications and question banks are added regularly, and existing exam pages are revisited as certifying bodies update their content outlines, fees, or eligibility requirements.
Which certifications do you cover?
Mostly healthcare, IT, project management, veterinary, dietary, and fitness certifications today, with new categories added over time. Browse by category above to see everything currently available.
Do I need an account to practice?
No. You can start the first practice quizzes of any exam without one. A free account lets you track your quiz history and progress, and some exams ask for one for their later quizzes and the mock exam.