First of two A+ exams: mobile devices, networking, hardware, virtualisation/cloud and troubleshooting.
Set by CompTIA
Free to start · 33 lessons · 3 mock exams · about 42 h of study
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CompTIA A+ Core 1 is the first of the two exams required for the A+ certification, and it is aimed at entry-level IT candidates building or proving practical support skills. Typical candidates are preparing for help desk, technical support, field service or junior IT technician roles, and need to show they can work confidently with mobile devices, networking, hardware, virtualisation and cloud concepts, and troubleshooting. A top score means you are not just scraping the pass mark: you are answering reliably across the full objective set, including scenario-based tasks that test applied judgement as well as recall.
Courselo prepares you for that standard exam-faithfully. We map a lesson to every current Core 1 objective, then reinforce it with adaptive practice that targets weak areas and mixes factual recall with troubleshooting decisions. You will also get realistic performance-based practice, full mock exams built to the live format, and strategy guidance on pacing, flagging and revisiting items. As you work, Courselo estimates your current score, shows whether you are on track for a safe pass or top marks, and builds a study plan so you know exactly what to revise next.
Format
1 h 30 min in total · 1 section
A+ V15 Core 1. A+ V15 Core 1 (220-1201), the current global Core 1 exam in the A+ certification path.
One timed exam session covering the full Core 1 objective domain. It combines selected-response items with drag-and-drop and performance-based tasks, all contributing to one final scaled score.
Question types
Scoring
100–900 · pass 675
Top-marks target
An internal excellence target for course planning; not an official distinction.
Syllabus
5 units · 33 topics · about 42 h of lessons and core practice
≈ 3.9%1 h 30 min
Covers identification, replacement and upgrade considerations for common laptop hardware and field-replaceable components. The exam tests recognition of parts, correct replacement order and safety/compatibility decisions in scenario-based and hardware-identification questions.
Your course
AI-generated · reviewedParts of this course are generated from the official specification the first time they’re needed, then checked and kept.
Lessons
33
One for every syllabus topic, generated from the official specification and checked
Practice questions
Adaptive
Generated for each topic as you practise, checked before you see them, each with an explanation
Mock exams
3
Questions
The live exam has up to 90 questions in a single 90-minute session.
Question types can include:
You need a scaled score of 675 on the 100-900 reporting scale.
Because CompTIA does not publish the exact raw-to-scaled conversion, there is no official fixed percentage that guarantees a pass.
Set a target and a test date. You’ll take a diagnostic, see a predicted score with its range, and get a plan for every week until the exam.
Maximum 90 questions. CompTIA does not publish a fixed count for each item type, so the mix can vary between forms.
Delivery. The exam is delivered on computer through Pearson VUE, either in a physical test centre or online through OnVUE remote proctoring. The same scored format applies in both delivery modes.
The current Core 1 exam is a single timed computer-based session lasting 90 minutes. You may receive up to 90 questions in total, mixing standard objective items with performance-based tasks in the same sitting; CompTIA commonly presents performance-based items at the start, but all items count within the same overall time limit. There is no separate published reading time and no scheduled break inside the 90-minute testing time.
Navigation is through the exam software: candidates can typically move forward and backward within the exam, flag items for review, and return to them before time expires, subject to the platform rules in the live session. There is no negative marking. A calculator is not part of the normal exam format for Core 1, and none should be assumed.
800
Strong pass target
A practical target that usually leaves margin above the passing standard.
750
Pass with margin
Safely above the official pass score of 675.
700
The live exam reports one scaled score from 100 to 900. The official passing score is 675.
CompTIA does not publish the exact raw-to-scaled conversion for A+ Core 1, and the exam may include different item types and possibly unscored pretest items. Because of that, raw percentages and scaled scores are not linearly related and should not be treated as exact equivalents.
For Courselo planning, practice, and forecasting, we use a single overall curve that maps the fraction of available marks earned across the whole exam to the reported scaled score. This curve is an evidence-based estimate, not an official conversion table.
Our internal reporting works like this:
Use the scaled score for readiness decisions; use domain performance for study decisions.
| Band | From |
|---|---|
| passMeets the certification standard for Core 1. | 675+ |
| near passBelow the passing standard but within reach with targeted review. | 620+ |
| developingPartial command of the objectives; several weak areas remain. | 500+ |
| limitedEarly-stage readiness; substantial study and practice still needed. | 100+ |
≈ 2%1 h
Covers mobile device screens, digitizers and built-in sensors and features found in smartphones, tablets and similar devices. The exam tests part identification, feature recognition and the ability to match embedded components to user functions and repair scenarios.
≈ 2%1 h
Covers common mobile accessories, physical ports and wired or short-range connection methods used with phones and tablets. The exam tests recognition of connectors and accessories, plus choosing the correct connection method for a given peripheral or use case.
≈ 2.9%1 h 15 min
Covers how mobile devices connect to cellular and wireless networks and how they support applications and data services. The exam tests understanding of connectivity options, service characteristics and app-distribution or support concepts in everyday technician scenarios.
≈ 2%1 h
Covers core mobile setup tasks, account synchronization and foundational security controls on smartphones and tablets. The exam tests configuration choices, basic policy enforcement and the ability to secure and synchronize user data across devices and services.
About 5 h 45 min of study, lessons and core practice
≈ 3.9%1 h 30 min
Covers the well-known TCP and UDP ports, associated protocols, and the secure alternatives A+ Core 1 expects you to recognise in scenarios. The exam tests this through direct recall, matching port numbers to services, and choosing the correct secure protocol for a given use case.
≈ 3.9%1 h 45 min
Covers IPv4 and IPv6 addressing, subnet masks, gateways, DNS settings, and the foundational configuration concepts needed to place hosts on a network. The exam tests this with calculations, address classification, and scenario questions about host configuration and connectivity.
≈ 3.9%1 h 30 min
Covers Wi‑Fi standards, frequency bands, channels, wireless security methods, and the practical characteristics of modern wireless networking. The exam tests this by asking you to identify the appropriate standard, band, or encryption method for a scenario.
≈ 2.9%1 h 15 min
Covers common network categories, physical and logical topologies, and the major wired and wireless methods used to connect sites or users to the internet. The exam tests this through identification, comparison, and scenario-based selection of the best fit.
≈ 2.9%1 h 15 min
Covers the purpose and basic operation of the main network devices named in A+ Core 1. The exam tests this by asking you to identify device roles, choose the correct device for a requirement, or recognise where a fault is likely to occur.
≈ 2%1 h
Covers the common server and host roles that provide core network services to clients. The exam tests this by asking you to identify which service a host is providing and what clients rely on it for.
≈ 2.9%1 h 15 min
Covers configuring and securing a small office/home office network and using the common command-line and physical tools named in the A+ objectives. The exam tests this through practical setup scenarios, basic hardening choices, and interpretation of tool output.
About 9 h 30 min of study, lessons and core practice
≈ 2.9%1 h 15 min
This topic covers the identification, selection and appropriate use of common internal and external cables, connectors and adapters used with PCs, displays, storage and mobile devices. The exam tests recognition, matching and best-fit selection in direct questions, drag-and-drop items and hardware scenarios.
≈ 2.9%1 h 15 min
This topic covers common display technologies, input devices and peripheral interfaces used with desktop and mobile computing systems. The exam tests identification of device types and interface standards, plus choosing the most suitable peripheral connection for a use case.
≈ 2.9%1 h 15 min
This topic covers desktop, laptop and server memory technologies, their characteristics and correct installation practices. The exam tests recognition of RAM types and features, compatibility checking and choosing the right memory configuration for a scenario.
≈ 3.9%1 h 30 min
This topic covers magnetic, solid-state and optical storage technologies, the interfaces they use and common RAID concepts. The exam tests identification of drive types, connector standards, performance and capacity trade-offs, and appropriate RAID selection for a scenario.
≈ 2%1 h
This topic covers motherboard components, common form factors, chipset roles and CPU socket compatibility. The exam tests hardware identification, fit and compatibility decisions, and recognition of motherboard features in build or upgrade scenarios.
≈ 2%1 h
This topic covers processor characteristics, cooling methods and common expansion cards installed in PCs. The exam tests recognition of CPU features, appropriate thermal solutions and selecting expansion hardware that matches system requirements.
≈ 2.9%1 h 15 min
This topic covers PSU characteristics and connectors, safe PC assembly practices and electrical protection devices used to protect equipment and users. The exam tests part selection, build sequencing, connector matching and choosing appropriate power protection for a given environment.
≈ 2%1 h
This topic covers BIOS/UEFI purpose, common firmware settings and the configuration tasks needed during hardware installation or upgrade. The exam tests recognition of firmware functions, navigation of common settings and selecting the correct configuration change for a scenario.
≈ 2.9%1 h 30 min
This topic covers printer technologies, installation requirements and configuration settings for printers and multifunction devices. The exam tests identification of printer types, consumables and maintenance items, plus choosing deployment and configuration options for a given environment.
≈ 2%45 min
A+ V15 Core 1 only
Choose and justify component combinations for common custom workstation builds and special-purpose PCs based on workload, graphics, storage, cooling, power, redundancy, and expansion requirements.
About 11 h 45 min of study, lessons and core practice
≈ 3.9%1 h 15 min
Covers foundational cloud computing concepts, the defining characteristics of cloud environments, and the main service and deployment models. On the exam, candidates are typically asked to match scenarios, benefits, and responsibilities to the correct cloud model or characteristic.
≈ 2.9%1 h
Focuses on how cloud storage and synchronization are used across devices and how virtual desktop technologies are applied in real-world environments. The exam tests recognition of suitable use cases, expected behavior, and common advantages of each approach.
≈ 3.9%1 h 15 min
Covers local virtualization on client systems, including hypervisor concepts, virtual machine requirements, and practical workstation use cases. The exam commonly tests setup requirements, resource needs, and the ability to choose virtualization appropriately for a given scenario.
About 3 h 30 min of study, lessons and core practice
≈ 2%1 h
Covers the CompTIA troubleshooting methodology used throughout Core 1 and the judgement needed to choose the best next step in a scenario. The exam tests both the ordered process and whether you can apply it appropriately while observing change control, backups, safety and documentation.
≈ 3.9%1 h 30 min
Focuses on diagnosing common mobile device faults involving power, charging, displays, touch input and application behaviour. The exam presents symptom-based scenarios and asks for the most likely cause or best corrective action.
≈ 2%1 h
Covers troubleshooting of mobile wireless connections, pairing, messaging, email and synchronization services. The exam tests whether you can isolate whether the issue is with the device, the app, the local connection or the cloud or carrier service.
≈ 4.9%1 h 45 min
Covers troubleshooting of wired network links, TCP/IP configuration and internet access from the workstation outward. The exam commonly tests layered diagnosis using symptoms, command output and the most efficient next action.
≈ 3.9%1 h 30 min
Focuses on troubleshooting wireless client connectivity and common small office or home office network problems. The exam tests your ability to identify interference, configuration mismatches, placement issues and basic SOHO router faults.
≈ 3.9%1 h 30 min
Covers diagnosis of core system hardware faults that prevent startup, cause instability or produce POST and thermal symptoms. The exam tests recognition of likely failed components and the safest, most appropriate corrective step.
≈ 3.9%1 h 30 min
Covers troubleshooting of storage devices, monitors, video output and common external peripherals. The exam uses symptom-based questions that require you to distinguish cabling, configuration, driver and hardware causes.
≈ 2.9%1 h 15 min
Covers diagnosis of printer operation, connectivity and print-quality faults for laser, inkjet, thermal and impact devices at an A+ support level. The exam tests symptom recognition, likely consumable or maintenance causes and the best practical fix.
About 11 h of study, lessons and core practice
1 diagnostic · 2 full-length, timed and scored like the real test
Strategy guides
8
Pacing, section strategy and test-day guides
Free to start
Every lesson and guide is free, with 40 practice questions a day and the diagnostic. Pro removes the limits.
Compare plansThey can matter a lot, but CompTIA does not publish exact per-item weights.
A safe assumption for preparation is:
For study planning, treat performance-based work as essential, not optional.
Yes, in normal exam navigation you can usually move through the session and return to flagged questions before time expires.
A good approach is:
No. For this blueprint, no calculator is available or expected.
The numerical work in Core 1 is light and is normally manageable with mental arithmetic and careful reading.