DevOps & Linux
Red Hat Certified System Administrator Guide
·11 min read
What the RHCSA is, how the hands-on EX200 exam works, what it costs, how scoring and renewal work, and where it fits in Red Hat's 2026 certification tracks.
Continue readingKenji Nakamura
DevOps and Linux
Kenji covers Kubernetes, Red Hat, Linux and the wider DevOps toolchain — which is to say most of the performance-based exams in the catalogue. His guides lean hard on the difference between exams you can read for and exams you have to practise for, because these are firmly the second kind.
41 guidesDevOps & Linux
DevOps & Linux
Red Hat Certified Engineer Guide
·11 min read
What the RHCE credential is in 2026: the Ansible-based EX294 exam, prerequisites, cost, renewal rules and the retitling under Red Hat's new track system.
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DevOps & Linux
How Hard Is the RHCSA Exam?
·7 min read
An honest look at RHCSA difficulty: why the hands-on EX200 format fails people who could pass on paper, who struggles most, and how failure actually works.
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DevOps & Linux
How Hard Is the RHCE Exam?
·7 min read
An honest look at EX294 difficulty: why the Ansible-based RHCE exam is a bigger jump from RHCSA than most expect, and where candidates actually fail.
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DevOps & Linux
How to Prepare for the RHCSA
·8 min read
A step-by-step RHCSA study plan: build a RHEL 10 lab, turn the EX200 objectives into task drills, practise under exam conditions and know when to book.
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DevOps & Linux
How to Prepare for the RHCE
·10 min read
A lab-first preparation method for the Ansible-based EX294 exam: build a multi-VM environment, drill playbooks from memory, and verify like the grader does.
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DevOps & Linux
Certified Kubernetes Administrator (CKA) Guide
·11 min read
Complete reference for the Certified Kubernetes Administrator exam — format, five domains, 2026 pricing, passing score, registration and renewal rules.
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DevOps & Linux
Certified Kubernetes Application Developer (CKAD) Guide
·10 min read
What the CKAD certification covers, how the hands-on exam works, what it costs in 2026, and how registration, scoring and renewal actually operate.
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DevOps & Linux
Certified Kubernetes Security Specialist (CKS) Guide
·10 min read
What the Certified Kubernetes Security Specialist exam covers, its CKA prerequisite, six domains, cost, format and how to know when you are ready.
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DevOps & Linux
How Hard Is the CKA Exam?
·7 min read
An honest look at CKA exam difficulty — why the hands-on format and two-hour clock punish the unpractised, what trips candidates up, and who finds it manageable.
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DevOps & Linux
How Hard Is the CKAD Exam?
·7 min read
An honest look at CKAD difficulty: why the two-hour hands-on format punishes slow candidates, what actually trips people up, and who finds it manageable.
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DevOps & Linux
How to Prepare for the CKA Exam
·10 min read
A practical CKA study plan built around hands-on labs — environment setup, a week-by-week schedule, timed benchmarking and final-week tactics that match the exam.
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Test what you have just read
Reading about an exam only takes you so far. Work through practice questions for your certification and find the gaps before exam day does.