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Certifications

The 20 most in-demand certifications, with the five most in-demand AI certifications first. Every question bank follows the published domain weights. Full access is $4.99/month, cancel anytime.

#1 · Amazon Web Services
AIAIF-C01

AWS Certified AI Practitioner

229 practice questions · 112 flashcards · 3 labs · study guide · video lessons

Exam domains and weights
  • Fundamentals of AI and ML 20%
  • Fundamentals of Generative AI 24%
  • Applications of Foundation Models 28%
  • Guidelines for Responsible AI 14%
  • Security, Compliance, and Governance for AI Solutions 14%

Source: official exam objectives.

#2 · Amazon Web Services
AIMLA-C02

AWS Certified Machine Learning Engineer – Associate

230 practice questions · 106 flashcards · 2 labs · study guide · video lessons

Exam domains and weights
  • Data Preparation for ML and AI 28%
  • ML Model and Foundation Model Development 24%
  • Deployment and Orchestration of ML and AI Workflows 24%
  • Operating, Monitoring, and Securing ML and AI Solutions 24%

Source: official exam objectives.

#3 · Microsoft
AIAI-103

Microsoft Certified: Azure AI Apps and Agents Developer Associate

230 practice questions · 97 flashcards · 2 labs · study guide · video lessons

Exam domains and weights
  • Plan and manage an Azure AI solution 28%
  • Implement generative AI and agentic solutions 33%
  • Implement computer vision solutions 13%
  • Implement text analysis solutions 13%
  • Implement information extraction solutions 13%

Source: official exam objectives.

#4 · Google Cloud
AIPMLE

Google Cloud Professional Machine Learning Engineer

230 practice questions · 97 flashcards · 3 labs · study guide · video lessons

Exam domains and weights
  • Architecting low-code AI solutions 13%
  • Collaborating within and across teams to manage data and models 16%
  • Scaling prototypes into ML models 21%
  • Serving and scaling models 20%
  • Automating and orchestrating ML pipelines 18%
  • Monitoring AI solutions 13%

Source: official exam objectives.

#5 · Microsoft
AIAI-901

Microsoft Certified: Azure AI Fundamentals

230 practice questions · 93 flashcards · 2 labs · study guide · video lessons

Exam domains and weights
  • Identify AI concepts and capabilities 43%
  • Implement AI solutions by using Microsoft Foundry 57%

Source: official exam objectives.

#6 · PMI
PMP (July 2026 ECO)

Project Management Professional (PMP)

230 practice questions · 117 flashcards · 2 labs · study guide · video lessons

Exam domains and weights
  • People 33%
  • Process 41%
  • Business Environment 26%

Source: official exam objectives.

#7 · ISC2
CISSP (2024 outline)

CISSP – Certified Information Systems Security Professional

230 practice questions · 110 flashcards · 11 labs · study guide · video lessons

Exam domains and weights
  • Security and Risk Management 16%
  • Asset Security 10%
  • Security Architecture and Engineering 13%
  • Communication and Network Security 13%
  • Identity and Access Management 13%
  • Security Assessment and Testing 12%
  • Security Operations 13%
  • Software Development Security 10%

Source: official exam objectives.

#8 · CompTIA
220-1201 / 220-1202

CompTIA A+

230 practice questions · 120 flashcards · 6 labs · study guide · video lessons

Exam domains and weights
  • Core 1: Mobile Devices 6.5%
  • Core 1: Networking 11.5%
  • Core 1: Hardware 12.5%
  • Core 1: Virtualization and Cloud Computing 5.5%
  • Core 1: Hardware and Network Troubleshooting 14%
  • Core 2: Operating Systems 14%
  • Core 2: Security 14%
  • Core 2: Software Troubleshooting 11.5%
  • Core 2: Operational Procedures 10.5%

Source: official exam objectives.

#9 · Cisco
200-301 v1.1

Cisco Certified Network Associate (CCNA)

230 practice questions · 136 flashcards · 4 labs · study guide · video lessons

Exam domains and weights
  • Network Fundamentals 20%
  • Network Access 20%
  • IP Connectivity 25%
  • IP Services 10%
  • Security Fundamentals 15%
  • Automation and Programmability 10%

Source: official exam objectives.

#10 · ISACA
CISM

ISACA CISM – Certified Information Security Manager

230 practice questions · 109 flashcards · 7 labs · study guide · video lessons

Exam domains and weights
  • Information Security Governance 17%
  • Information Security Risk Management 20%
  • Information Security Program 33%
  • Incident Management 30%

Source: official exam objectives.

#11 · ISACA
CISA (2024 outline)

ISACA CISA – Certified Information Systems Auditor

230 practice questions · 109 flashcards · 5 labs · study guide · video lessons

Exam domains and weights
  • Information System Auditing Process 18%
  • Governance and Management of IT 18%
  • Information Systems Acquisition, Development, and Implementation 12%
  • Information Systems Operations and Business Resilience 26%
  • Protection of Information Assets 26%

Source: official exam objectives.

#12 · CompTIA
SY0-701

CompTIA Security+

230 practice questions · 119 flashcards · 14 labs · study guide · video lessons

Exam domains and weights
  • General Security Concepts 12%
  • Threats, Vulnerabilities, and Mitigations 22%
  • Security Architecture 18%
  • Security Operations 28%
  • Security Program Management and Oversight 20%

Source: official exam objectives.

#13 · Cisco
350-401 v1.2

Cisco CCNP Enterprise Core (ENCOR)

230 practice questions · 119 flashcards · 4 labs · study guide · video lessons

Exam domains and weights
  • Architecture 15%
  • Virtualization 10%
  • Infrastructure 30%
  • Network Assurance 10%
  • Security 20%
  • Automation and Artificial Intelligence 15%

Source: official exam objectives.

#14 · Amazon Web Services
SAA-C03

AWS Certified Solutions Architect – Associate

230 practice questions · 108 flashcards · 6 labs · study guide · video lessons

Exam domains and weights
  • Design Secure Architectures 30%
  • Design Resilient Architectures 26%
  • Design High-Performing Architectures 24%
  • Design Cost-Optimized Architectures 20%

Source: official exam objectives.

#15 · EC-Council
312-50 (CEH v13)

EC-Council Certified Ethical Hacker (CEH)

230 practice questions · 125 flashcards · 5 labs · study guide · video lessons

Exam domains and weights
  • Information Security and Ethical Hacking Overview 6%
  • Reconnaissance Techniques 21%
  • System Hacking Phases and Attack Techniques 17%
  • Network and Perimeter Hacking 14%
  • Web Application Hacking 16%
  • Wireless Network Hacking 6%
  • Mobile Platform, IoT, and OT Hacking 8%
  • Cloud Computing 6%
  • Cryptography 6%

Source: official exam objectives.

#16 · PeopleCert / AXELOS
ITIL 4 Foundation

ITIL 4 Foundation

230 practice questions · 106 flashcards · 3 labs · study guide · video lessons

Exam domains and weights
  • Key concepts of service management 15%
  • ITIL guiding principles 20%
  • Four dimensions of service management 5%
  • Service value system and value chain 10%
  • ITIL practices 50%

Source: official exam objectives.

#17 · CompTIA
N10-009

CompTIA Network+

230 practice questions · 112 flashcards · 7 labs · study guide · video lessons

Exam domains and weights
  • Networking Concepts 23%
  • Network Implementation 20%
  • Network Operations 19%
  • Network Security 14%
  • Network Troubleshooting 24%

Source: official exam objectives.

#18 · The Linux Foundation / CNCF
CKA

Certified Kubernetes Administrator (CKA)

230 practice questions · 121 flashcards · 4 labs · study guide · video lessons

Exam domains and weights
  • Storage 10%
  • Troubleshooting 30%
  • Workloads and Scheduling 15%
  • Cluster Architecture, Installation and Configuration 25%
  • Services and Networking 20%

Source: official exam objectives.

#19 · Amazon Web Services
CLF-C02

AWS Certified Cloud Practitioner

230 practice questions · 106 flashcards · 3 labs · study guide · video lessons

Exam domains and weights
  • Cloud Concepts 24%
  • Security and Compliance 30%
  • Cloud Technology and Services 34%
  • Billing, Pricing, and Support 12%

Source: official exam objectives.

#20 · Microsoft
AZ-104

Microsoft Certified: Azure Administrator Associate

200 practice questions · 93 flashcards · 4 labs · study guide · video lessons

Exam domains and weights
  • Manage Azure identities and governance 24.7%
  • Implement and manage storage 18.3%
  • Deploy and manage Azure compute resources 24.7%
  • Implement and manage virtual networking 18.3%
  • Monitor and maintain Azure resources 14%

Source: official exam objectives.

Labs & Practice Tests

26 hands-on labs

Each lab maps to one or more certifications and records your completion on your dashboard. One full lab is a free sample: play the phishing analysis lab.

Configure guardrails for an HR benefits assistant

Northwind Health is launching an internal assistant that answers employee questions about 2026 benefits. Red-team testing found that it leaks employee…

AIIntermediate25 min
Open lab

Tune a model endpoint for latency, cost and safe rollout

A product-recommendation model is moving to a managed inference endpoint. Peak traffic is 400 requests/second for 6 hours a day and 40 requests/second…

AIAdvanced25 min
Open lab

Responsible-AI release review of a loan pre-approval model

Model v3 pre-approves personal-loan applicants. Overall accuracy improved from 86% to 91%, and the product team wants to ship Friday. As the reviewer …

AIIntermediate30 min
Open lab

Linux: web server down, disk full

It's 7:40 AM. Customers get "502 Bad Gateway" from shop.acme.test. You have SSH on web01. nginx stopped overnight and the app team says nothing change…

Beginner20 min
Open lab

Windows: user can't reach the intranet

Ticket INC-4471: "I can get to the internet but intranet.corp.local won't load since IT swapped my network cable." You are remoted into ACCT-PC07 with…

Beginner15 min
Open lab

Cisco-style CLI: VLANs, access ports and a trunk

A new branch switch, BR-SW1, arrived with a blank config. Sales PCs plug into Gi0/1–Gi0/2, the engineering lab into Gi0/3, and Gi0/24 uplinks to the c…

Intermediate25 min
Open lab

Kubernetes: fix a broken deployment and service

The "web" app in namespace shop went down after Friday's release. Pods are not running and the service returns nothing. Use kubectl from the jump host…

Intermediate25 min
Open lab

Firewall rule editor with packet tests

You are hardening the edge firewall for a small company. Web server 10.0.1.10 serves customers over HTTPS only, admins in 10.0.9.0/24 need SSH to it, …

Intermediate20 min
Open lab

SIEM triage: overnight login attack

At 06:55 the SOC queue shows "Multiple failed logins – VPN portal." You are the on-shift analyst. Use the log console to work out what happened overni…

Intermediate25 min
Open lab

Phishing email analysis and response

Five finance employees reported the same email: "Action required: payroll account verification." Open the message, inspect the headers and link, decid…

Beginner20 min
Open lab

Cloud IAM: least-privilege policy builder

The analytics team's role currently has full S3 access. Audit says it must read only the reports/ folder of the acme-analytics bucket, list only that …

Intermediate25 min
Open lab

Design a two-tier cloud network

Build the network for a web app in VPC 10.0.0.0/16 across two zones: a load balancer in public subnets, app servers in private subnets that can downlo…

Intermediate30 min
Open lab

VLSM subnet planner for a new branch

The new branch got 10.20.0.0/22. Plan VLSM subnets for each segment, largest first, using the smallest subnet that fits each host count with no overla…

Intermediate20 min
Open lab

Project schedule critical path and risk register

You inherited the "Customer Portal 2.0" plan two weeks before the sponsor review. Work out the critical path from the network diagram data, then finis…

Intermediate30 min
Open lab

Service desk: prioritize and classify the queue

Monday 08:10. The service desk queue has eight new tickets and two agents. Set impact and urgency so priorities come out right, classify each record, …

Beginner20 min
Open lab

Audit: quarterly user access review

You are the IS auditor testing logical access to FinanceERP for Q3. You have the system's user listing and the HR feed. Find the exceptions, recommend…

Intermediate25 min
Open lab

Linux: reporting service won't start after a deploy

Last night's deploy moved the reportd metrics exporter on app02 to run as its own unprivileged user, reportd. Since then the service fails at boot and…

Intermediate20 min
Open lab

Windows domain: an account that keeps locking out

Ticket INC-5120: Jordan Lee (CORP\jlee) in Finance has been locked out four times since changing their password on Monday. Every time the help desk un…

Intermediate20 min
Open lab

Cisco-style CLI: OSPF neighbors won't come up

After a maintenance window, branch router R2 lost its OSPF adjacency to headquarters router R1 over the 10.12.0.0/30 link, and users on the R2 LAN (10…

Intermediate25 min
Open lab

Cloud storage: lock down a publicly exposed bucket

The access analyzer flagged acme-customer-exports as readable by anyone on the internet. It holds nightly CSV exports with customer names and email ad…

Intermediate20 min
Open lab

Cloud network security groups: fix RDP the right way

Finance can't RDP to vm-fin-app01 through the admin bastion since a colleague added a deny rule to its network interface. The weekly scan also says RD…

Intermediate25 min
Open lab

Kubernetes: least-privilege RBAC and a database NetworkPolicy

Audit findings for namespace payments: the CI service account payments:deployer is bound to cluster-admin, and every pod in the cluster can reach the …

Advanced25 min
Open lab

Incident response: ransomware on a finance workstation

08:47 ET: the endpoint console raised a critical alert. FIN-WS14 is renaming files on the file share \\FS02\finance to *.lockd. The share holds payrol…

Intermediate25 min
Open lab

Vulnerability management: prioritize this week's scan

The weekly scan returned eight findings across production, and you only have patching capacity for the urgent ones. Apply the company remediation poli…

Intermediate20 min
Open lab

TLS: expired certificate and an incomplete chain

Since midnight the mobile app and several partners fail to call https://api.acme.test with certificate errors, and staff browsers show a warning. The …

Intermediate20 min
Open lab

Change advisory board: review this week's changes

You chair Thursday's change advisory board for Acme Retail. Five requests for change are on the agenda. The quarter-end change freeze runs Nov 27–30. …

Intermediate20 min
Open lab

Roadmap

Banks grow every month. These certifications are next.

Next up (Q1 2027)

Google Cloud Associate Cloud Engineer, HashiCorp Terraform Associate, Microsoft Security Operations Analyst (SC-200)

Q2 2027

AWS Certified Developer – Associate, CompTIA CySA+, Google Cloud Professional Cloud Architect

Later

CompTIA Linux+, Certified Kubernetes Application Developer, Microsoft Azure Solutions Architect Expert