- What the C)HT Credential Actually Is
- Two Credentials, One Course: Hardware and Operating Systems
- The Hardware Side: Domains 1-14
- The Operating Systems Side: Domains 15-25
- Exam Format and What the Outline Says
- Testing Mechanics: LMS, Identity Checks, and Policies
- Three-Year Validity and Renewal Routes
- Where the Published Sources Disagree
- Who the Credential Is For
- Sequencing Your Study Around the Domains
- Frequently Asked Questions
- This C)HT is Mile2's Hardware Technician & Operating Systems Technician program, covering Certified Hardware Technician and Certified Operating Systems...
- Published preparation topics span 25 unweighted headings, from Troubleshooting to SOHO Network Configurations.
- The outline describes 100 multiple-choice questions, about two hours, and a 70% minimum grade, but does not clearly split these between the two exams.
- Exams are delivered through Mile2's online Learning Management System, and exam entry does not require buying Mile2 training.
What the C)HT Credential Actually Is
The label "C)HT" is shared by several unrelated certifications, so precision matters here. On this site, C)HT refers to Hardware Technician & Operating Systems Technician (C)HT), a program administered by Mile2. Mile2's own Terms and Conditions separately identify C)HT (or CHT) as Certified Hardware Technician and C)OST (or COST) as Certified Operating Systems Technician. The combined name you see on this page exists because one study resource covers both credentials, and Mile2's self-study page describes two certifications delivered in a single course.
If you have arrived here from a search for a clinical, healthcare, or other credential with the same abbreviation, this is not that. Nothing in this article applies to any other C)HT. If you are still sorting out the abbreviation itself, the short explainers at What Does C)HT Stand For? and C)HT Meaning cover the naming question directly.
In practical terms, this is an entry-level, vendor-administered IT support credential. It validates that you can diagnose and repair computer hardware, install and manage operating systems, work with basic networking, and apply foundational security practices in small offices and home environments.
Two Credentials, One Course: Hardware and Operating Systems
The structure of this program is its most distinctive feature. Instead of a single exam covering everything, Mile2 describes two certifications taught in one course, with a five-day live class for each credential and 80 CEUs attached to the course. Those figures are course measures, not examination time, which is a point candidates frequently confuse.
| Aspect | Certified Hardware Technician (C)HT) | Certified Operating Systems Technician (C)OST) |
|---|---|---|
| Focus | Physical components, peripherals, mobile devices, printers, building and troubleshooting systems | Operating systems, Windows management, networking, virtualization, security, SOHO configuration |
| Detailed outline chapters | Domains 1-13 (plus TCP/IP in the summary) | Domains 15-25 (eleven chapters) |
| Live class length | Five days | Five days |
| Administering body | Mile2 | Mile2 |
The domain list used across this site is the union of both outlines. It is a set of published preparation topics, not an official count of exam domains, and Mile2 does not publish percentage weights for any of them. For a deeper walk through each area, see the C)HT Exam Domains guide covering all 25 content areas.
The Hardware Side: Domains 1-14
The hardware portion follows the chapters of the detailed Certified Hardware Technician outline. It begins with method and ends with process, and the middle is a systematic tour of the physical machine.
Domain 1: Troubleshooting
The opening chapter establishes the diagnostic mindset that every later chapter depends on.
- Structured problem identification before touching hardware
- Isolating whether a fault is hardware, software, or configuration
- Recognizing symptom patterns that point to specific components
Domains 2-5: Core Platform
Motherboards and CPUs, Computer Power Supplies, Memory, and Computer Expansion make up the heart of the physical build.
- Matching processors, sockets, and boards
- Power supply behavior and the symptoms of failure (the summary outline uses "Power Supplies" as an alias for this chapter)
- Memory types, installation, and compatibility
- Expansion cards and the buses that carry them
Domains 6-8: Storage, Input-Output, and Display
Physical Storage, Input-Output Devices, and Display Devices cover the components users interact with and depend on daily.
- Drive technologies and their failure modes
- Peripheral connections and device behavior
- Display types and common visual faults
Domains 9-12: Connectivity, Mobile, Print, and Custom Builds
Network Cables and Connectors, Mobile Devices, Printers and Multifunction Print Devices, and Custom Computers broaden the scope beyond the desktop tower.
- Cable categories and connector types
- Mobile device components and servicing
- Printer technologies and multifunction devices
- Custom computer chapters that list Wi-Fi standards and wireless-encryption subsections
Domain 13, Operational Procedures, covers the professional practices surrounding technical work, and Domain 14, TCP/IP and Transport Protocols, is carried over from the hardware summary. One quirk worth knowing: the hardware summary includes TCP/IP but omits Mobile Devices, while the detailed outline includes Mobile Devices and has no separate TCP/IP chapter. This site keeps both rather than choosing, so study both. Expect the hardware material to reward hands-on familiarity; if you have never opened a case, our C)HT study guide suggests ways to build that familiarity.
The Operating Systems Side: Domains 15-25
The eleven Certified Operating Systems Technician chapters shift from physical parts to the software and network environments running on them.
- Domain 15: Operating Systems sets out installation, features, and fundamentals.
- Domain 16: Windows Management addresses day-to-day administration of Windows systems.
- Domain 17: Network Basics and Domain 18: Network Protocols lay the networking groundwork.
- Domain 19: Wireless Networking and Domain 20: Windows Networking apply that groundwork to wireless links and Windows environments.
- Domain 21: Virtualization and Cloud Computing introduces virtual machines and cloud concepts.
- Domain 22: Security Principles, Domain 23: Security Technologies, and Domain 24: Securing Devices and Data form a three-part security sequence.
- Domain 25: SOHO Network Configurations pulls everything together in small office and home office setups.
Exam Format and What the Outline Says
The combined outline describes 100 multiple-choice questions, approximately two hours, and a 70% minimum grade. Here is the honest caveat: the outline's exam description is a single paragraph, and it does not unambiguously allocate those figures between the separately named C)HT and C)OST exams. No aggregate question count or total duration should be inferred from it. If you plan to attempt both credentials, confirm the exact per-exam format with Mile2 before test day.
Other format points the sources leave unanswered are also worth stating plainly:
- Mile2 publishes no exam revision identifier for C)HT or C)OST.
- A legacy reference to CompTIA A+ 220-1002 appears in the material, but it does not establish the Mile2 exam version or any current A+ alignment, so do not treat the two as equivalent.
- No official percentage weights exist for any domain, which means you cannot reliably predict how many questions any single area will contribute.
For a candid look at where candidates struggle, read How Hard Is the C)HT Exam?, and for the scoring threshold in detail, see the C)HT passing score breakdown.
Testing Mechanics: LMS, Identity Checks, and Policies
Mile2 delivers testing through its online Learning Management System, accessed with a Mile2.com account. According to Mile2's Policies and Procedures document (dated May 26, 2026), the platform is built on LearnDash, and candidates must complete identification verification and accept the published policies before testing.
A Warning About the "Exam Only" Link
The course-outline page's "Exam Only / Purchase Exam Combo" link leads to a product page for an entirely different Mile2 certification, C)CSA. That page cannot be used to establish the identity or fees of the C)HT or C)OST exams. Because of this, we do not quote an exam fee here. For budgeting guidance built from what the sources can support, see the C)HT certification cost breakdown and the C)HT requirements page. Scheduling details are covered in C)HT exam dates.
Three-Year Validity and Renewal Routes
Credentials are valid for three years. Mile2's current Certification Renewal Program and its Paths to Renewal page describe alternative routes to stay current:
- CEU route: a standard 60-CEU cycle with documented activities, paid renewal, and an ethics attestation.
- Exam route: renew by passing the latest applicable certification exam.
Mile2's FAQ lists USD 200 for the U.S. regional CEU renewal path. Eligible candidates in developing regions may qualify for a lower price, and exam-based renewal may cost more. Verify current pricing on Mile2's pages before you commit, since fees can change.
Where the Published Sources Disagree
Rather than smoothing over contradictions, it is more useful to flag them. Several renewal and timing details conflict across Mile2's own documents.
| Source | What it says |
|---|---|
| Undated course outline | Lists both an exam retake and 20 annual CEUs as requirements |
| Renewal pages | Describe the CEU route and the exam route as alternatives, not cumulative requirements |
| Policies and Procedures, page 13 (May 26, 2026) | Requires the CEU/recertification route within seven days of expiry; after that, a full exam without CEUs |
| Policies and Procedures, page 22 | Retains annual-CEU wording and says a full-price retake may be required after seven days |
Key Takeaway
Treat the current renewal pages and the May 2026 policy document as the authority, and email Mile2 to resolve any ambiguity before your credential nears expiry. The seven-day grace window is the detail most likely to cost you money if misunderstood.
Who the Credential Is For
The skills map naturally onto front-line technical support. Typical employers include small and mid-sized businesses with in-house IT, managed service providers, computer repair shops, school and municipal IT departments, and help desk operations. Common roles include desktop support technician, help desk technician, field service technician, and junior systems support. The mix of hardware repair and Windows administration makes holders versatile in environments where one person handles both.
We deliberately do not quote salary figures here because the sources supply none. For a qualitative discussion of earning potential, see the C)HT salary guide, and for a decision framework, Is the C)HT certification worth it? You can also browse role-focused material at C)HT jobs, and the C)HT training overview compares preparation options.
Sequencing Your Study Around the Domains
Because Mile2 publishes no weights, spread effort across all 25 headings rather than gambling on a favorite. The sequence below follows the dependencies between domains instead of generic time-management advice.
Method and Core Platform
- Troubleshooting (Domain 1) first, so every later domain gets a diagnostic frame
- Motherboards and CPUs, Power Supplies, Memory, Expansion (Domains 2-5)
Devices and Cabling
- Storage, Input-Output, Display (Domains 6-8)
- Cables and Connectors, Mobile Devices, Printers, Custom Computers, Operational Procedures (Domains 9-13)
Operating Systems and Networking
- TCP/IP and Transport Protocols (Domain 14) alongside Network Basics and Protocols (Domains 17-18)
- Operating Systems, Windows Management, Windows Networking (Domains 15, 16, 20)
Advanced Topics and Integration
- Wireless Networking, Virtualization and Cloud (Domains 19, 21)
- The security trio (Domains 22-24), then SOHO Network Configurations (Domain 25) as the capstone
Pairing TCP/IP with the network chapters in week three is deliberate: the summary outline places it with hardware, but the concepts only click once you meet them in a networking context. Finish by testing yourself on the C)HT practice tests, and keep the C)HT cheat sheet handy for last-minute review. If you want to see how others have fared, the C)HT pass rate discussion explains why no verified figure is available.
Frequently Asked Questions
It refers to Hardware Technician & Operating Systems Technician (C)HT), a Mile2 program. Mile2 identifies C)HT as Certified Hardware Technician and C)OST as Certified Operating Systems Technician. More background is at What Is C)HT Certification?
The combined outline describes 100 multiple-choice questions, about two hours, and a 70% minimum grade. It does not clearly state how these figures divide between the C)HT and C)OST exams, so confirm with Mile2.
No. Mile2's May 2026 Policies and Procedures permit certification-exam entry without purchasing Mile2 training. You still need a Mile2.com account, identity verification, and policy acceptance.
Credentials are valid for three years. Renewal is through a 60-CEU cycle with documented activities, paid renewal, and an ethics attestation, or by passing the latest applicable certification exam.
No. The 25 headings are unweighted preparation topics drawn from Mile2's outlines, not an official exam-domain count or exhaustive blueprint, so cover all of them rather than concentrating on a few.