- What This Cheat Sheet Covers (and What It Cannot)
- Identity Check: Mile2's Hardware and Operating Systems Technician Pair
- Exam Mechanics You Can Safely Memorize
- Hardware Half: Domains 1-14 at a Glance
- Operating Systems Half: Domains 15-25 at a Glance
- One-Table Review: Hardware Side vs. OS Side
- Validity and Renewal: Where the Sources Disagree
- The Exam Combo Link Trap
- A Domain-Ordered Review Plan
- Who Uses This Credential
- FAQ
- Mile2 publishes 25 unweighted preparation topics for this pair: Domains 1-14 cover hardware, Domains 15-25 cover operating systems.
- The combined outline cites 100 multiple-choice questions, about two hours and a 70% minimum, but does not split them by exam.
- Credentials are valid three years; renewal is a 60-CEU route or passing the latest applicable exam.
- The outline's "Exam Only" combo link points to an unrelated C)CSA product; never use it to judge fees.
What This Cheat Sheet Covers (and What It Cannot)
This page is a compressed review of the Hardware Technician & Operating Systems Technician (C)HT) preparation material from Mile2. It is built from the published Mile2 course outline and web outline, not from protected lessons, workbooks or live exam content. That distinction matters: a cheat sheet that pretends to know the exact question bank would be misleading. What it can do is give you the topic map, the verified logistics and the places where the public sources disagree, so you know what to confirm before test day.
If you want depth after this overview, the C)HT Study Guide 2026 walks through a full preparation path, and the C)HT Exam Domains guide expands each of the 25 content areas. To test yourself against exam-style questions, use the C)HT practice tests as you work through this sheet.
Identity Check: Mile2's Hardware and Operating Systems Technician Pair
The label "C)HT" is shared by several unrelated credentials in the industry, so pin down exactly which one you are studying. Here it means the Hardware Technician & Operating Systems Technician (C)HT) track administered by Mile2. Mile2's Terms and Conditions identify C)HT/CHT as Certified Hardware Technician and C)OST/COST as Certified Operating Systems Technician, and its self-study page describes two certifications delivered in one course.
That pairing explains the shape of the syllabus: a hardware portion followed by an operating systems portion. For the naming and background questions, the explainers on what C)HT certification is and what C)HT stands for cover the details.
Exam Mechanics You Can Safely Memorize
Here are the logistics supported by Mile2's published materials.
- Format: the combined outline describes 100 multiple-choice questions, approximately two hours, and a 70% minimum grade.
- Ambiguity to respect: the outline's exam paragraph is singular and does not clearly allocate those figures between the separately named C)HT and C)OST exams. Do not assume 200 questions or four hours; confirm in your Mile2 account.
- Delivery: testing happens in Mile2's online Learning Management System through a Mile2.com account. Mile2's Policies and Procedures (May 26, 2026) identify LearnDash as the platform.
- Gatekeeping: identification verification and policy acceptance are required before you test.
- Training not mandatory: the policies permit certification-exam entry without buying Mile2 training.
- Course measures: the outline lists a five-day live class for each credential and 80 CEUs. Those are course figures, not exam time.
- Version: Mile2 publishes no C)HT/C)OST exam revision. A legacy CompTIA A+ 220-1002 reference appears in the material, but it does not establish the exam version or current A+ alignment.
For the numbers behind scoring, see C)HT Passing Score 2026; for scheduling windows, C)HT Exam Dates 2026. Eligibility questions are handled in C)HT Requirements 2026.
Hardware Half: Domains 1-14 at a Glance
The first thirteen domains follow the detailed hardware chapters; Domain 14 keeps TCP/IP and Transport Protocols from the hardware summary without inventing a fourteenth chapter. All fourteen are preparation topics rather than an official, weighted exam blueprint.
Foundation: Domains 1-4
Domain 1: Troubleshooting
The methodology domain that every later domain leans on.
- Practice a repeatable diagnostic sequence rather than guessing at parts.
- Expect scenario-style prompts where order of actions matters.
Domain 2: Motherboards and CPUs
The core platform topic.
- Know how boards, sockets and processors relate to each other.
- Be able to reason about compatibility between components.
Domain 3: Computer Power Supplies
Listed as "Power Supplies" in the summary outline; the detailed chapter uses the longer name. Treat them as the same topic.
Domain 4: Memory
Understand memory types and how they fit the platform you identified in Domain 2.
Components and Peripherals: Domains 5-8
Domains 5-8: Expansion, Storage, Input-Output, Display
These cover Computer Expansion, Physical Storage, Input-Output Devices and Display Devices.
- Pair each device category with its connector and interface so cable questions stop being surprises.
- Be ready to link symptoms to the likely component category.
Connectivity and Special Devices: Domains 9-14
Domains 9-11: Cabling, Mobile, Printing
Network Cables and Connectors, Mobile Devices, and Printers and Multifunction Print Devices.
- Note that the detailed hardware outline includes Mobile Devices while the hardware summary omits it; study it.
Domains 12-14: Custom Computers, Operational Procedures, TCP/IP
Custom Computers is where wireless appears on the hardware side: the chapter lists Wi-Fi standards and wireless-encryption subsections. Operational Procedures covers professional practice. Domain 14, TCP/IP and Transport Protocols, bridges the hardware summary to the networking material that returns in Domains 17-18.
Operating Systems Half: Domains 15-25 at a Glance
Domains 15-25 follow the eleven detailed C)OST chapters. This half shifts from physical parts to configuration, networking, virtualization and security.
Domains 15-16: Operating Systems and Windows Management
Core OS concepts, then hands-on administration of Windows.
- Know the management tools and where each task is performed.
- Expect procedure-oriented questions rather than pure definitions.
Domains 17-20: Networking on the OS Side
Network Basics, Network Protocols, Wireless Networking and Windows Networking.
- Reuse what you learned in Domain 14 and Domain 9; the topics reinforce each other.
- Be able to connect protocol knowledge to configuration tasks on a Windows machine.
Domain 21: Virtualization and Cloud Computing
Understand the vocabulary and the operational idea behind virtual machines and cloud services.
Domains 22-24: Security
Security Principles, Security Technologies, and Securing Devices and Data.
- Move from principles, to the technologies that implement them, to protecting actual devices and data.
Domain 25: SOHO Network Configurations
The capstone: applying networking, wireless and security knowledge to small-office and home-office setups.
One-Table Review: Hardware Side vs. OS Side
| Aspect | Hardware (C)HT) side | Operating Systems (C)OST) side |
|---|---|---|
| Domains | 1-14 | 15-25 |
| Outline source | Detailed hardware chapters plus a TCP/IP carry-over | Eleven detailed operating systems chapters |
| Starts with | Troubleshooting | Operating Systems |
| Ends with | TCP/IP and Transport Protocols | SOHO Network Configurations |
| Live class | Five days | Five days |
| Official weights | None published | None published |
Validity and Renewal: Where the Sources Disagree
A credential from this pair is valid for three years. Mile2's current renewal pages describe alternative routes rather than a single requirement:
- 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.
The current FAQ lists USD 200 for the U.S. regional CEU renewal path. Eligible developing-region candidates may qualify for a lower price, and exam-based renewal may cost more. For broader cost context, see C)HT Certification Cost 2026.
The Exam Combo Link Trap
One pitfall deserves its own entry. The course-outline page's "Exam Only/Purchase Exam Combo" link leads to the unrelated C)CSA product. That product cannot establish C)HT/C)OST exam identity or fees, so do not use its price or description to plan your budget. Instead, verify the exact exam product inside your Mile2.com account before paying. Because the policies permit certification-exam entry without Mile2 training, you are not forced into a bundle, but make sure whatever you purchase is the Hardware Technician or Operating Systems Technician exam you intend to take.
A Domain-Ordered Review Plan
Because the 25 topics are unweighted, spread effort evenly at first, then tilt toward your weak areas after practice questions reveal them. This sequencing follows how the domains build on each other.
Troubleshooting and the core platform
- Domain 1 first, since method underpins everything.
- Domains 2-4: Motherboards and CPUs, Computer Power Supplies, Memory.
Components, peripherals and cabling
- Domains 5-9: Expansion, Storage, Input-Output, Display, Network Cables and Connectors.
Mobile, printing, custom builds, procedures, TCP/IP
- Domains 10-14, including the wireless standards in Custom Computers.
Operating systems and networking
- Domains 15-20, then link protocol knowledge back to Domain 14.
Virtualization, security and SOHO
- Domains 21-25, finishing with SOHO Network Configurations as an integration exercise.
Use the final days for timed mixed sets from the practice test site, since the format is multiple choice and the combined outline cites roughly two hours. If you are unsure how demanding to expect the exam to be, read How Hard Is the C)HT Exam? and review the data discussion in C)HT Pass Rate 2026.
Key Takeaway
Treat Domains 14, 17 and 18 as one connected networking thread, and Domains 19 and 25 as a wireless-and-SOHO thread. Cross-domain links are where scenario questions tend to hide.
Who Uses This Credential
A hardware and operating systems technician credential maps most naturally to hands-on support work: help desk and desktop support, field service, IT support for small offices, and entry-level positions that involve building, repairing and configuring computers and small networks. The domain list itself shows why: printers, mobile devices, cabling, Windows management and SOHO networks are everyday support tasks. Because no salary data is published in the sources reviewed for this pair, this article does not quote earnings. For a qualitative look at roles, see C)HT jobs, and for the value question, Is the C)HT Certification Worth It? and the C)HT Salary Guide.
FAQ
The combined Mile2 outline describes 100 multiple-choice questions, approximately two hours and a 70% minimum grade, but its single exam paragraph does not clearly divide those figures between the C)HT and C)OST exams. Confirm the exact per-exam details in your Mile2 account.
No. The 25 headings are a union of published, unweighted preparation topics, not an official domain count or exhaustive blueprint. Treat any quoted percentages as unverified.
No. Mile2's Policies and Procedures permit certification-exam entry without buying Mile2 training. You still need a Mile2.com account, identity verification and policy acceptance.
It is valid for three years. Renewal is either a standard 60-CEU cycle with documented activities, paid renewal and an ethics attestation, or passing the latest applicable certification exam. Sources conflict on late-renewal details, so check with Mile2.
No. The material references legacy CompTIA A+ 220-1002, but that reference does not establish the Mile2 exam version or current A+ alignment. Study the Mile2 domains listed here.