Certification Study Guides

Linux Foundation Mar 28, 2026 · 9 min read

FOCP Deep Dive: FinOps Framework, Cost Allocation & Cloud Optimization

Master the FOCP exam topics: FinOps lifecycle phases, tagging strategies for cost allocation, commitment-based discounts, anomaly detection, and the FinOps maturity model.

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Linux Foundation Mar 28, 2026 · 6 min read

How to Pass the FinOps Certified Practitioner (FOCP) in 2026: Study Guide

Complete FOCP study guide for 2026. Covers all FinOps phases, the exam format ($250, 50 questions, 90 min), the FinOps Framework, and a 4-week study plan.

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Red Hat Mar 28, 2026 · 10 min read

RHCSA Exam Traps: Storage, SELinux & Service Configuration Gotchas

Avoid the most common RHCSA exam mistakes. Master LVM resize traps, SELinux context persistence, systemd enable vs start, firewalld permanence, and /etc/fstab syntax.

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Red Hat Mar 28, 2026 · 10 min read

RHCSA Deep Dive: LVM Storage, SELinux & systemd Service Management

Master the hardest RHCSA topics: LVM volume management, SELinux context management, systemd service configuration, firewalld zones, and Podman container operations.

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Red Hat Mar 28, 2026 · 9 min read

How to Pass Red Hat RHCSA (EX200) in 2026: Complete Study Guide

Complete study guide for the Red Hat RHCSA EX200 exam. Covers essential tools, storage/LVM, services/boot process, SELinux, networking, and containers on RHEL 9.

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HashiCorp Mar 28, 2026 · 11 min read

Vault Professional Exam Traps: HA, Replication & Enterprise Access Control

Avoid the hardest Vault Professional exam traps around HA topology, replication modes, HSM seal types, and enterprise access management.

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HashiCorp Mar 28, 2026 · 12 min read

Vault Professional Deep Dive: HA Deployment, HSM Integration & Performance Replication

Master advanced Vault Professional topics: Integrated Storage Raft HA, HSM auto-unseal, performance replication vs DR replication, and Vault Agent templating.

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HashiCorp Mar 28, 2026 · 8 min read

How to Pass HashiCorp Vault Operations Professional in 2026: Study Guide

Complete study guide for the HashiCorp Vault Operations Professional exam. Covers all 8 advanced domains: HA deployment, HSM integration, performance replication, and access control at scale.

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HashiCorp Mar 28, 2026 · 13 min read

Vault Associate 003 Exam Traps: Auth Methods, Policies & Token Gotchas

Avoid the most common Vault Associate 003 exam mistakes. Master auth method selection, policy path syntax, token types, and lease management traps.

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HashiCorp Mar 28, 2026 · 12 min read

Vault Associate Deep Dive: Secrets Engines, Auth Methods & Token Lifecycle

Master the hardest Vault Associate 003 topics: KV v1 vs v2, dynamic secrets, auth method comparison, token types, lease renewal, and Vault's security model.

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