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How to Choose an IT Certification Path: From Work Scenarios to Exam Code
Choosing an IT or cloud certification? Start with your work, skill gaps, and target level, then validate the choice with an official exam code and practice.
Step 2 · Start practicingCertDrill Getting Started: Choose an Exam, Unlock Practice, and Begin
A CertDrill getting-started guide: choose an exam by its full code, unlock access, then use domain practice and mistake review to plan study.
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PMI PMP Study Guide: 2026 Exam Outline and Study Plan
Prepare for the 2026 PMI PMP exam with its three domains, updated eligibility paths, question formats, and a practical study plan.
AWS Certified Advanced Networking – Specialty (ANS-C01) Study Guide: Domains and Study Plan
An AWS ANS-C01 study guide covering the four exam domains, hybrid network design, and a practical preparation plan for networking professionals.
AWS Certified Cloud Practitioner (CLF-C02) Study Guide: Domains and Study Plan
An AWS CLF-C02 study guide covering the four exam domains, cloud fundamentals, and a practical preparation plan.
AWS Certified CloudOps Engineer – Associate (SOA-C03) Study Guide: Domains and Study Plan
An AWS SOA-C03 study guide covering the five exam domains, CloudOps operations, and a practical preparation plan.
AWS Certified Data Engineer – Associate (DEA-C01) Study Guide: Domains and Study Plan
An AWS DEA-C01 study guide covering the four exam domains, data pipeline engineering, and a practical preparation plan.
AWS Certified Developer – Associate (DVA-C02) Study Guide: Domains and Study Plan
An AWS DVA-C02 guide covering the four exam domains, application development, deployment, and a practical study plan.
AWS Certified DevOps Engineer – Professional (DOP-C02) Study Guide: Domains and Study Plan
An AWS DOP-C02 guide covering the six exam domains, delivery automation, and a practical preparation plan.
AWS Certified Generative AI Developer – Professional (AIP-C01) Study Guide: Domains and Study Plan
An AWS AIP-C01 guide covering the five exam domains, production generative AI integration, and a practical study plan.
AWS Certified Machine Learning Engineer – Associate (MLA-C01) Guide: Legacy Exam Outline
A legacy MLA-C01 guide covering the four exam domains. MLA-C02 beta is available; confirm exam code, language, and version before preparing.
AWS Certified Security – Specialty (SCS-C03) Study Guide: Domains and Study Plan
An AWS SCS-C03 guide covering the six exam domains, detection and response, and a practical preparation plan.
AWS Certified Solutions Architect – Associate (SAA-C03) Study Guide: Domains and Study Plan
An AWS SAA-C03 study guide covering the four exam domains, architecture trade-offs, and a practical preparation plan.
AWS Certified Solutions Architect – Professional (SAP-C02) Study Guide: Domains and Study Plan
An AWS SAP-C02 study guide covering the four exam domains, architecture decisions in complex environments, and a practical preparation plan.
Cisco CCNA 200-301 Study Guide: Exam Topics and Study Plan
Prepare for Cisco CCNA 200-301 with an overview of its six domains, core networking skills, and a hands-on study plan.
Google Cloud Associate Cloud Engineer (ACE) Study Guide: Exam Domains and Study Plan
Prepare for the Google Cloud Associate Cloud Engineer exam with an overview of its five domains, core services, and a practical study plan.
Google Cloud Cloud Digital Leader (CDL) Study Guide: Core Concepts and Plan
A GCP-CDL study guide to digital transformation, data, AI, infrastructure modernization, security, and cloud operations.
Google Cloud Professional Cloud Architect (PCA) Study Guide: Design and Plan
Prepare for GCP-PCA with an overview of architecture, infrastructure, security, process, implementation, and reliability domains.
Google Cloud Professional Cloud Database Engineer (PCDE) Study Guide
Prepare for GCP-PCDE with database architecture, migration, operations, availability, security, and cost optimization.
Google Cloud Professional Cloud Developer (PCD) Study Guide: Build and Deploy
A GCP-PCD guide covering cloud-native design, application testing, deployment, Google Cloud integrations, and operations.
Google Cloud Professional Cloud DevOps Engineer (PCDOE) Study Guide
Prepare for GCP-PCDOE with CI/CD, SRE, observability, troubleshooting, and cost optimization topics.
Google Cloud Professional Cloud Network Engineer (PCNE) Study Guide
Prepare for GCP-PCNE with VPCs, managed network services, hybrid connectivity, operations, troubleshooting, and security.
Google Cloud Professional Cloud Security Engineer (PCSE) Study Guide
Prepare for GCP-PCSE with identity and access, data protection, network security, threat detection, automation, and compliance.
Google Cloud Professional Data Engineer (PDE) Study Guide: Pipelines and Analytics
Prepare for GCP-PDE with data system design, ingestion and processing, storage, analytics, and workload operations.
Google Cloud Professional Machine Learning Engineer (PMLE) Study Guide: AI and MLOps
Study for the current GCP-PMLE exam with low-code AI, data and model collaboration, training, serving, pipelines, and monitoring.
Huawei HCIA-Datacom (H12-811) Study Guide: Network Fundamentals
Prepare for H12-811 HCIA-Datacom with IP, switching, routing, network security, WLAN, and operations fundamentals.
Huawei HCIE-Cloud Computing Written Exam (H13-531) Study Guide
Prepare for H13-531 with cloud platform architecture, FusionCloud deployment, operations, migration, backup, and disaster recovery.
Huawei HCIE-Datacom Written Exam (H12-891) Study Guide
Prepare for the H12-891 HCIE-Datacom written exam with advanced routing, campus, WAN, QoS, and network automation topics.
Huawei HCIE-Storage Written Exam (H13-629) Study Guide
Prepare for H13-629 with storage solutions, design and tuning, high availability, migration, and advanced operations.
Huawei HCIP-Datacom Advanced Routing & Switching (H12-831) Study Guide
Prepare for H12-831 with advanced IGP, BGP, IPv6, MPLS, network operations, troubleshooting, and cutover topics.
Huawei HCIP-Datacom-Core Technology (H12-821) Study Guide
Prepare for H12-821 with OSPF, IS-IS, BGP, switching, multicast, security, and network reliability topics.
Huawei HCIP-Security (H12-725) Study Guide: Network Security
Prepare for H12-725 HCIP-Security V4.0 with firewalls, VPNs, intrusion prevention, identity, security operations, and troubleshooting.
Huawei HCIP-Storage (H13-624) Study Guide: Storage Technology and Operations
Prepare for H13-624 with storage systems, flash, distributed storage, solution design, implementation, and troubleshooting.
Huawei HCSA-Presales-IP Network (H19-301) Study Guide
Prepare for H19-301 with data communications, campus/WLAN, data center, WAN, network security, and presales solution topics.
ISACA CISA Study Guide: Five Audit Domains and Study Plan
Prepare for ISACA CISA with the five current exam domains, weights, exam format, experience requirements, and practical audit-focused study guidance.
ISACA CISM Study Guide: Four Security Management Domains and Updated Outline
Prepare for ISACA CISM with the November 3, 2026 outline transition, domain weights, experience requirements, and management-focused study guidance.
ISACA CRISC Study Guide: Four Domains of IT Risk and Controls
Prepare for ISACA CRISC with the 2025 four-domain outline, exam weights, experience requirements, and a practical IT risk study plan.
ISC2 CCSP Study Guide: 2026 Exam Outline and Study Plan
Prepare for ISC2 CCSP with the outline effective August 2026: six domains, exam weights, experience requirements, and a cloud security study plan.
ISC2 Certified in Cybersecurity (CC) Study Guide: Current Exam Outline and Plan
Prepare for ISC2 CC with the September 2026 outline: security principles, governance, IAM, network and cloud security, operations, and incident response.
ISC2 CISSP Study Guide: Eight Domains, Exam Format, and Study Plan
Prepare for ISC2 CISSP with the current eight-domain outline, exam weights, experience requirements, CAT format, and a practical study plan.
Scrum.org PSM I Study Guide: Scrum Master Fundamentals
Prepare for Scrum.org PSM I with the Scrum framework, Scrum Master accountabilities, exam format, and a practical beginner study plan.
Scrum.org PSM II Study Guide: Advanced Scrum Master Scenarios
Prepare for PSM II by practicing Scrum Master facilitation, coaching, team self-management, organizational improvement, and advanced scenarios.
Scrum.org PSPO I Study Guide: Product Owner Fundamentals
Prepare for PSPO I by learning Product Owner accountabilities, product value, Product Backlog management, assessment format, and a practical study plan.
Scrum.org PSPO II Study Guide: Advanced Product Ownership
Prepare for PSPO II with product vision, value management, Product Backlog practices, stakeholder collaboration, and advanced organizational scenarios.
AWS Certified AI Practitioner (AIF-C01) Study Guide: Exam Domains and Study Plan
A practical AWS AIF-C01 study guide covering the five exam domains, key concepts, and a focused preparation plan.
How to Choose an IT Certification Path: From Work Scenarios to Exam Code
Choosing an IT or cloud certification? Start with your work, skill gaps, and target level, then validate the choice with an official exam code and practice.
CertDrill Getting Started: Choose an Exam, Unlock Practice, and Begin
A CertDrill getting-started guide: choose an exam by its full code, unlock access, then use domain practice and mistake review to plan study.
Practice on CertDrill
Understand exam priorities, untangle easily confused concepts, and reinforce what you learn with focused practice. Practice on the web or in our WeChat mini program, IT知习.
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