Certification Study Guides

GitHub Mar 28, 2026 · 8 min read

GitHub Administrator Exam Traps: SSO, Team Roles, and Enterprise Policies

The trickiest GitHub Certified Administrator exam questions involve org owner vs enterprise owner permissions, team maintainer vs org member, outside collaborator restrictions, EMU limitations, secret scanning vs push protection timing, …

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GitHub Mar 28, 2026 · 8 min read

GitHub Administrator Deep Dive: Authentication, Enterprise, and Compliance

Deep technical dive into GitHub Certified Administrator Domains 1, 4, and 5. SAML SSO setup, SCIM provisioning, EMU vs managed users, GHES architecture, high availability, GitHub Connect, audit log streaming, …

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GitHub Mar 28, 2026 · 8 min read

How to Pass GitHub Certified Administrator in 2026: Complete Study Guide

Complete GitHub Certified Administrator study guide for 2026. Covers all 5 exam domains, the format ($250, ~65 questions, 120 min), SSO SAML/OIDC, team management, GHAS, GHES architecture, and a 4-week …

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GitHub Mar 28, 2026 · 7 min read

GitHub Actions Certification Exam Traps: OIDC, Secrets, and Concurrency

The trickiest GitHub Actions Certification exam questions involve pull_request_target security, GITHUB_TOKEN permissions, OIDC token exchange, secrets in reusable workflows, environment protection vs branch protection, and concurrency cancel behavior. This post …

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GitHub Mar 28, 2026 · 8 min read

GitHub Actions Deep Dive: Workflows, Runners, and Reusable Patterns

Deep technical dive into GitHub Actions Domains 1-3. Advanced workflow YAML, runner groups, composite actions vs reusable workflows, concurrency, contexts, artifacts, and caching — everything needed for the certification exam …

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GitHub Mar 28, 2026 · 7 min read

How to Pass GitHub Actions Certification in 2026: Complete Study Guide

Complete GitHub Actions Certification study guide for 2026. Covers all 5 exam domains, the format ($250, ~65 questions, 120 min), workflow YAML, runners, reusable workflows, OIDC, and a 4-week study …

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Linux Foundation Mar 28, 2026 · 10 min read

LFCS Exam Traps: Storage, systemd & Networking Gotchas

Avoid the most common LFCS exam mistakes. Learn why XFS can't shrink, when systemctl enable isn't enough, and how to make network changes persist across reboots.

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Linux Foundation Mar 28, 2026 · 10 min read

LFCS Deep Dive: Linux Storage Management, Networking & Service Configuration

Master the hardest LFCS topics: LVM workflow, partition management, systemd service units, network configuration with nmcli, firewall rules, and container basics with Docker.

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Linux Foundation Mar 28, 2026 · 8 min read

How to Pass the Linux Foundation LFCS in 2026: Complete Study Guide

Complete LFCS study guide for 2026. Covers all exam domains, the performance-based format ($395, 2 hours), and a structured study plan for Linux system administrators.

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Linux Foundation Mar 28, 2026 · 8 min read

FOCP Exam Traps: FinOps Phases, Cost Allocation & Optimization Gotchas

Avoid common FOCP exam mistakes. Learn why Inform comes before Optimize, when savings plans beat reserved instances, and how showback differs from chargeback.

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