CompTIA Server+ prep, adaptive plan with ARIA
CompTIA Server+ (SK0-005) is 90 minutes, up to 90 questions, 750 out of 900 to pass, and one of the few IT certifications with no expiration date. It validates that you can manage physical and virtual server infrastructure across hardware, administration, security, disaster recovery, and troubleshooting. I prep you for it with a 25-question adaptive evaluation, a personalized roadmap, and a pass guarantee tied to five measurable conditions. Start your free CAT evaluation at claudelab.me/onboarding/select-cert?code=Server%2B.
TL;DR
- 90 minutes, up to 90 questions, 750/900 passing score, four domains weighted 18 / 30 / 24 / 28.
- No expiration date: Server+ is permanent once earned, unlike most CompTIA certs.
- Performance-based questions included: configuration and troubleshooting in simulated environments.
- Vendor-neutral: the exam covers principles that apply across server OS, storage, and networking vendor products.
- I open with a 15-to-25-question adaptive eval that outputs a per-domain skill estimate before building your roadmap.
What the Server+ exam is
Server+ (SK0-005) is the current CompTIA Server+ version as of 2026. It targets systems administrators and IT support professionals who manage server infrastructure in data centers and corporate environments, typically with 18 to 24 months of prior IT experience. It is vendor-neutral: the exam does not favor Dell, HPE, Cisco, Microsoft, or Red Hat specifically, but expects you to understand concepts that apply across their products.
The four domains:
| Domain | Weight | What it covers |
|---|---|---|
| Server Hardware Installation and Management | 18% | Server form factors (rack, blade, tower), hardware components (CPUs, RAM, storage controllers, NICs), RAID configurations, power and cooling, physical installation and maintenance. |
| Server Administration | 30% | Operating system installation and configuration (Windows Server, Linux), virtualization concepts (hypervisors, VM management), storage management (SAN, NAS, DAS), network services (DNS, DHCP, directory services), scripting basics. |
| Security and Disaster Recovery | 24% | Physical security, OS hardening, access controls, patch management, backup types and strategies, replication, disaster recovery planning, business continuity concepts. |
| Troubleshooting | 28% | Systematic troubleshooting methodology, diagnosing hardware failures (POST errors, RAID degradation, overheating), OS boot failures, network connectivity issues, application and service problems. |
The heaviest domain is Server Administration at 30%, followed by Troubleshooting at 28%. Those two domains together represent over half the exam. Candidates who focus primarily on hardware (18%) are preparing for the wrong weight distribution.
How ARIA preps you for Server+
ARIA owns your Server+ prep end to end.
The CAT evaluation. Your first session is 15 to 25 adaptive questions calibrated to the Server+ blueprint. The eval allocates question slots by uncertainty across the four domains, not evenly. Strong hardware knowledge gets fewer hardware questions so more slots go to Administration or Troubleshooting. Output is a per-domain skill estimate that drives the roadmap.
The personalized roadmap. I generate three to five phases sequenced from your weakest domain to your strongest. A candidate who has worked help desk but never touched RAID configuration gets more milestones in Hardware; someone with a storage background gets fewer. Phase length matches your baseline, not a generic 8-week calendar.
The daily task engine. One card per day, the single highest-value action right now. It considers active milestone, error backlog density, readiness decay, and schedule drift. Full mechanics at how ARIA picks today's task.
The error backlog. Every wrong answer on a Server+ question is tagged by domain, topic, and trap pattern, then queued for return at increasing intervals until you answer it correctly three times in a row.
The readiness score. A 0-to-100 estimate of your probability of passing Server+ today, blending coverage, accuracy, and recency across the four domains. At 80 with all milestones completed and two mock passes, the pass guarantee is eligible.
Common pitfalls on Server+
1. RAID level selection under time pressure
Server+ dedicates meaningful question weight to RAID configurations: RAID 0 (striping, no redundancy), RAID 1 (mirroring), RAID 5 (striping with distributed parity, minimum 3 drives), RAID 6 (can tolerate two simultaneous drive failures), RAID 10 (striped mirrors, minimum 4 drives). The exam writes stems that give you a mix of performance, capacity, and redundancy requirements and asks which RAID level is the best fit. Candidates who memorize RAID labels without understanding the math (usable capacity, rebuild time, fault tolerance) pick the wrong answer when the stem prioritizes one dimension over another.
What I do: RAID questions in the Hardware domain milestones drill each level with its trade-offs explicitly, including the scenario format the exam uses. The error backlog tracks which boundary confused you (RAID 5 vs RAID 6 fault tolerance, or RAID 10 vs RAID 5 capacity math) and returns the narrower comparison.
2. Backup types: full vs incremental vs differential restore logic
The exam consistently tests restore procedures, not just backup schedules. Incremental backups require the last full backup plus every incremental since. Differential backups require only the last full plus the most recent differential. Under a recovery scenario question, the restore time and backup storage requirements differ. Candidates who learn the backup types in isolation confuse the restore sequence under pressure.
What I do: the Disaster Recovery milestones pair backup type definitions with their restore sequences in every scenario. Wrong answers get tagged at the correct level of granularity: if you got the backup schedule right but the restore sequence wrong, the backlog surfaces restore-sequence variants, not backup-schedule variants.
3. POST error interpretation
Power-on self-test (POST) errors appear in Server+ troubleshooting questions as symptom descriptions (one long beep and two short beeps, a missing CMOS error, a spinning drive not detected). Candidates who did not work hands-on with physical server hardware often do not recognize what these symptoms indicate before they see the question. Getting a POST error question wrong on Server+ is one of the highest-frequency single-question failures in the troubleshooting domain.
What I do: the Troubleshooting domain milestones include a POST error pattern set with the symptoms and their most likely causes. The error backlog differentiates by error type (RAM-related POST codes vs storage-detection vs CPU errors) and resurfaces the narrowest variant you missed.
4. Virtualization: guest vs host OS responsibilities
Server+ tests virtualization at the conceptual operations level: Type 1 vs Type 2 hypervisors, VM snapshots vs backups, virtual switch configurations, resource allocation (vCPU, RAM). The common trap is questions about host OS failure impact on guest VMs, or which layer is responsible for memory management. Candidates conflate the hypervisor's responsibilities with the guest OS responsibilities and pick the wrong answer on "who patches what" questions.
What I do: the Server Administration milestones isolate hypervisor-layer responsibilities from guest-OS responsibilities before introducing mixed scenarios. Every wrong answer gets tagged by boundary (host vs guest, or snapshot vs backup) so the backlog can return the exact gap.
Common questions
What is the CompTIA Server+ exam format and passing score?
Server+ (SK0-005) is 90 minutes, up to 90 questions including multiple-choice and performance-based questions, with a passing score of 750 on a scale of 100 to 900.
Who should take CompTIA Server+?
Server+ targets IT professionals who manage physical and virtual server infrastructure in data centers or corporate environments. It is best suited for systems administrators, data center technicians, and IT generalists at organizations with on-premises or hybrid infrastructure. Assumed background is about 18 to 24 months of IT experience, typically after CompTIA A+ or equivalent.
Does CompTIA Server+ expire?
No. Server+ has no expiration date and does not require renewal through the CompTIA CE program. Once earned, it is permanent. This is unusual in the CompTIA catalog and one practical advantage for candidates who do not want to track renewal deadlines.
Is Server+ worth it in 2026?
Most valuable for candidates who manage physical server infrastructure or work in hybrid data center environments. Less valuable in purely cloud-native roles where the hardware layer is abstracted. For data center technicians, systems administrators at SMBs, and IT generalists who handle both physical and virtual infrastructure, Server+ credibly validates the operational skill set.
How long does it take to prepare for Server+?
Candidates with 18 or more months of server experience typically take five to eight weeks. Without hands-on server background, plan eight to twelve weeks. The CAT evaluation sizes the roadmap from your baseline.
Related certifications
- CompTIA A+: the foundational cert that most Server+ candidates hold before sitting the exam
- CompTIA Network+: covers the networking layer that complements Server+'s server-administration focus
- CompTIA Cloud+: the next step if your environment is moving toward cloud or hybrid operations
- CompTIA Security+: covers the security domain in greater depth than Server+ if security is your primary focus
Start your Server+ prep
The CAT evaluation runs in 15 to 25 questions and outputs a per-domain baseline across all four Server+ domains. That baseline drives the roadmap: how many phases, how many milestones, which domain you start in. It is the first and cheapest step before booking an exam date.
Start your free Server+ evaluation at claudelab.me/onboarding/select-cert?code=Server%2B.
Related reading: the CompTIA certification path in 2026 covers where Server+ fits in the full CompTIA ladder and when to take it vs other intermediate certs in the catalog.