The Linux and Windows server certification routes from junior IT roles into system administration — RHCSA, Linux+, Server+ and Microsoft's hybrid exams, sequenced.
The Red Hat Certified System Administrator exam contains no multiple-choice questions at all. You sit at live systems and either the tasks work by the end or they do not. That format is worth dwelling on before you plan a route into system administration, because it captures what separates sysadmin hiring from help desk hiring: employers are no longer asking whether you know things — they are asking whether you can run things. The certifications that move you into the role are the ones built, or at least studied, that way.
If you are on a help desk or in a junior IT role now, the path in is a sequence, not a single exam. Here is that sequence, on both the Linux and Windows sides.
System administrator adverts split roughly into Linux-centred, Windows-centred and mixed-environment roles. Your choice of lane should follow the jobs around you, not internet debates:
One clarification on scope: this is the route for becoming a sysadmin. Once you hold the title, the ladder of credentials worth adding is a different question, covered in the sibling guide to the best certifications for working system administrators.
Coming straight off a help desk, you may never have touched RAID configuration, server hardware, backup design or availability concepts. CompTIA Server+ (SK0-005) exists for exactly this gap: a vendor-neutral exam of up to 90 questions in 90 minutes with a 750 passing score on CompTIA's 100–900 scale, no prerequisites, and a recommended (not required) two years around servers. Two honest caveats. The exam launched in May 2021 and has no announced successor, so it is the oldest paper in this path; and since October 2025 new Server+ certifications expire after three years under CompTIA's continuing education rules rather than lasting for life. Treat Server+ as a bridge for candidates who need the vocabulary — skip it if you already build home-lab servers comfortably.
Candidates who already hold CompTIA A+ from their help desk days have effectively done step 2's prerequisite reading; the help-desk-side view of that progression is in our guide to certifications for help desk jobs.
Two credible routes lead through Linux administration, and they suit different starting points.
CompTIA Linux+ (XK0-006) is the gentler on-ramp: up to 90 questions in 90 minutes, mostly conventional formats with some performance-based items, passing score 720, US retail around $399 as of the June 2026 price rise (varies by region), no prerequisites, with CompTIA recommending about twelve months of hands-on Linux server experience. The XK0-006 version launched in July 2025, so course material older than that may target the retired exam. Linux+ proves distribution-neutral competence and renews on CompTIA's standard three-year cycle.
RHCSA (exam EX200) is the stronger hiring signal for sysadmin roles. It is entirely hands-on and performance-based — real administration tasks on Red Hat Enterprise Linux systems — costs $500 in the US as of 2026 (regional pricing differs sharply; roughly ₹20,000 plus GST has been reported in India), and is valid for three years. Because nothing about it can be passed by recognising answer patterns, an RHCSA on a CV answers the "can you run things" question directly. Preparation has to be lab-first: build machines, break them, fix them against the objectives, and use the EX200 RHCSA exam resources to check your understanding of each objective area as you go.
The Linux Professional Institute's LPIC track and the Linux Foundation's LFCS are respected vendor-neutral alternatives, particularly outside Red Hat-dominated markets; current formats and pricing for both should be confirmed on lpi.org and the Linux Foundation's certification pages, and you can review the LFCS exam topic areas to compare coverage. Choose one Linux credential and go deep rather than collecting two that say the same thing.
After RHCSA, the Red Hat Certified Engineer (RHCE) is the natural continuation for Linux sysadmins — its current focus and requirements are on Red Hat's site — but it belongs to your second year in the role, not your route in.
Microsoft's current Windows Server credentials are the hybrid pair: AZ-800, Administering Windows Server Hybrid Core Infrastructure, and AZ-801, Configuring Windows Server Hybrid Advanced Services. Between them they cover the daily matter of Windows administration — Active Directory, Hyper-V, storage, networking, security — in both on-premises and Azure-connected form, which mirrors how most Windows estates now run. Confirm current exam details on Microsoft Learn before booking: Microsoft is mid-way through its largest certification overhaul since 2019, with a dozen certifications retired or retiring during 2026, so verifying that any Microsoft exam is still live has become a mandatory first step.
Alongside the server pair, the Azure Administrator Associate (AZ-104) has become a de facto sysadmin credential in Windows shops because so much administration now happens in the Azure portal, PowerShell and CLI. It is active and safe to target as of August 2026: a 100-minute proctored exam covering identities and governance, storage, compute, virtual networking and monitoring, commonly cited at US$165 in the US (Microsoft prices per country), passing at 700 on a 1,000-point scaled system — scaled, not 70%. The certification renews every twelve months, free, via an open-book online assessment. There are no prerequisites, and no, you do not need AZ-900 first — though the fundamentals exam is a low-risk warm-up if Azure is entirely new to you. Timed AZ-104 practice questions are the sensible final gate before spending the fee: analyse which of the five domains you keep dropping marks in and study there, rather than re-running questions you already get right.
To be clear about the boundary this article keeps: AZ-104 here is the Windows sysadmin's tool certification, not a pivot into cloud engineering. The cloud and DevOps tracks that open up after a sysadmin role are their own paths — worth knowing they exist, and worth leaving until you are in the role.
A junior candidate with RHCSA and a documented home lab beats a candidate with three multiple-choice certificates and neither. Whichever lane you took, convert the study into evidence:
The financial case for pushing through: US Bureau of Labor Statistics data puts the median for network and computer systems administrators at $96,800 (May 2024), against $61,860 for computer user support specialists (May 2025) — with the usual caveat that pay varies widely by location, experience and employer.
Book your step-3 exam when you can honestly tick most of these:
If three or more boxes are empty, the money is better spent in a month, not today — especially for performance-based exams, which offer no partial credit for recognising a right-looking answer.
The shortest credible path, then: pick the lane your local job market rewards; bridge fundamentals with Server+ only if you need it; earn RHCSA or Linux+ on the Linux side, or AZ-104 plus the AZ-800/AZ-801 server exams on the Windows side; and surround the certificate with lab evidence. Most people can run this sequence in about a year of consistent part-time effort alongside a support job — no official study-hour figures exist for these exams, so let your practice results, not a calendar, tell you when you are ready. The full exam directory is a good place to survey the exams in both lanes before committing to one.
Exam facts in this guide were checked against official certification-provider pages on . Fees, exam codes and policies change — confirm on the provider’s own site before you book.
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