Many GitHub Administration practice resources still follow the outdated pre-July-2026 7-domain syllabus (with its retired standalone GitHub Packages domain) — missing major 2026 exam updates in Microsoft Learn's July 2026 GH-100 study guide: Enterprise teams (`@/ent:<slug>`, `<=2,500` teams, `<=5,000` EMU IdP users, Copilot & custom enterprise role delegation, no `CODEOWNERS`), Microsoft Entra ID OIDC SSO with Conditional Access Policy (CAP) IP validation on EMUs, GHEC with Data Residency (`<enterprise>.ghe com`), Enterprise Security Configurations (`Secret Protection` + `Code Security` enforcement and transferred-repo edge cases), GitHub App `15,000 req/hr` GHEC REST rate limits vs shared `5,000 req/hr` personal PATs, Azure private networking  on Linux/Windows Larger runners, Actions OIDC dynamic Vault/Key Vault/AWS federation, Organization API Insights, Copilot Metrics API, and Enhanced Billing Cost Centers & Budgets.

Passing Exam GH-100 demands decisive administrative precision under a closed-book 100-minute clock: choosing GHEC with personal accounts vs GHEC with EMUs (Guest Collaborators, zero in-place personal conversion, `GEI` migration) vs Data Residency (`ghe com`) vs self-hosted GHES (LDAP, HA `ghe-repl-promote`, `backup-utils`, `ghe-maintenance -s`, `ghe-support-bundle -x`); separating SAML authentication from PAT/SSH SAML authorization and vaulting SAML recovery codes; enforcing Custom Properties and layered Repository Rulesets (`Evaluate` dry-run mode, Push file/path rules, Merge Queue `merge_group`); deduplicating Enterprise user seats via GitHub Connect and Visual Studio subscriptions; streaming immutable Enterprise Audit Logs (`180-day` UI cap + `Stream Git events` + `hashed_token`); governing CodeQL, Secret Scanning Push Protection + Validity Checks, Dependabot on private runners, and `git filter-repo` + GitHub Support cache-purge incident response; securing internal `workflow_call` pipelines, 40-char SHA action pinning, Runner Groups, ephemeral `ARC` (`gha-runner-scale-set`) pods, `Environment > Repository > Organization` secrets, and OIDC subject claims; and optimizing 90-day unique GHAS committers, Copilot seats, and metered runner/storage spend.

This course delivers 600 original, intermediate-depth enterprise scenarios across 6 full-length mock exams of 100 questions each, weighted strictly to Microsoft's official July 2026 GH-100 study guide:

• Manage GitHub identities and access (15–20% -> 19 questions per exam; 114 total)

• Administer GitHub Enterprise environment (10–15% -> 14 questions per exam; 84 total)

• Implement secure software development and compliance (25–30% -> 29 questions per exam; 174 total)

• Manage GitHub Actions (20–25% -> 24 questions per exam; 144 total)

• Monitor and optimize GitHub usage (10–15% -> 14 questions per exam; 84 total)

ABOUT EXAM GH-100 & GITHUB EXAM RULES

Exam GH-100 awards the Microsoft Certified: GitHub Administration intermediate credential (valid for 2 years, with online recertification via Microsoft Learn), requires no prior prerequisite exam, and costs $99 USD via Pearson VUE (English). Unlike Azure Associate/Expert exams, GH-100 is strictly closed-book (split-screen Microsoft Learn access is NOT available on GitHub exams) and provides 100 minutes of exam time (120 minutes total seat duration) with standalone scenario items — zero multi-tabbed case studies and zero live labs.

REALISTIC GH-100 QUESTION PATTERNS (WITHIN UDEMY CSV LIMITS)

• CLI, API, Audit & Policy Slot Completions (____): 21–33 items per exam (143 total) testing `ghe-support-bundle -x`, `ghe-diagnostics`, `ghe-repl-status`, `ghe-maintenance -s`, `hashed_token`, `@/ent:<slug>`, `merge_group`, `_diag/Runner_*.log` vs `Worker_*.log`, `generate-jitconfig`, `::add-mask::`, `id-token: write`, `15,000 req/hr`, `48 KB` secret limits, and `retention-days`

• Proposed Solution Evaluations: 6–8 items per exam (42 total) exposing real-world admin traps (expecting personal-account Team Sync to invite non-members, putting Enterprise teams in `CODEOWNERS`, assuming transferred repos auto-inherit default Security Configurations, running `git rm` instead of revoking secrets + `git filter-repo`, minting 4 PATs under 1 user expecting `20,000 req/hr`, attaching Azure VNet networking to `arm64` macOS Larger runners, expecting Org secrets to override Environment secrets, or keeping departed employees' paid seats out of fear of losing PR history)

• Ordered 4-Step Sequences (->): 8 items per exam rehearsing EMU SAML/OIDC + SCIM rollout, Enterprise team governance, GHES support bundle escalation, Security Configuration enforcement, Audit Log Streaming to SIEM/WORM, secret-leak incident response, GitHub App JWT migration, Azure private networking for Larger runners, OIDC Vault federation, and seat/FinOps optimization

• Multi-Select Scenarios: 16 Select-two / Select-three items per exam (13 five-option `Select two.` + 3 six-option `Select three.`) with explicit selection counts

• Zero Artificial Case Studies: Every question stands on its own across 6 distinct enterprise architectures, matching the live GH-100 exam format

WHAT EVERY QUESTION INCLUDES

• Detailed per-option explanations on all 4–6 choices clarifying why each keyed answer fits and why every distractor fails

• Concise overall synthesis mapped to all 39 official July 2026 GH-100 skills (`1.1` through `5.5`)

HONEST PACING & PLATFORM BOUNDARIES

Run each 100-question mock exam with a closed-book 100-minute timer (~60 seconds per question) to mirror live Pearson VUE conditions, or untimed on your first pass for deep architectural study. Practice percentages do not convert directly to Microsoft's 700 / 1000 scaled score, and interactive Pearson VUE drag-and-drop / dropdown / Yes-No grid widgets are adapted into text-complete CSV questions.