Course code: TGS-2024048317 · Version v7.1 · 19 August 2026
Register: https://www.tertiarycourses.com.sg/wsq-comptia-certified-a-training-core-1-and-core-2.html
54 hands-on labs across the nine CompTIA A+ exam domains. Each lab has its own folder containing the full procedure (README.md) and a fill-in worksheet (worksheet.md).
Every lab runs on training hardware provided in class or in your web browser — see tools.md for the toolkit. There is nothing to install and nothing to license.
- Read the objective and the goal first, so you know what the lab is proving.
- Work the steps in order — later steps depend on earlier ones.
- Complete the Test it verification before moving on. It is what the Practical Performance assessment mirrors.
- Fill in
worksheet.mdas you go and keep it as your evidence record. - Answer the review questions from memory — if you cannot, revisit the concept in the Learner Guide.
Laptop hardware · display components · accessories and ports · cellular and wireless · MDM and synchronisation
| Lab | Title | Exam objective | |
|---|---|---|---|
| 01 | Laptop Teardown and Field-Replaceable Unit Identification | lab PDF · worksheet PDF | Identify and safely replace laptop field-replaceable units — battery, RAM, storage, keyboard and wireless card — with correct ESD precautions (Core 1 objective 1.1). |
| 02 | Mobile Display Technology and Digitizer Fault Diagnosis | lab PDF · worksheet PDF | Compare LCD, IPS, VA and OLED panel technologies and correctly distinguish a display panel fault from a backlight, inverter or digitizer fault (Core 1 objective 1.2). |
| 03 | Mobile Connectivity — Bluetooth, NFC, Hotspot and Cellular Configuration | lab PDF · worksheet PDF | Configure and troubleshoot mobile connection methods including Bluetooth pairing, NFC, hotspot tethering and cellular data settings (Core 1 objectives 1.3 and 1.4). |
| 04 | MDM Policy Design and Mobile Synchronisation | lab PDF · worksheet PDF | Design a mobile device management policy and configure account synchronisation for corporate email, calendar and contacts, accounting for data caps (Core 1 objective 1.4). |
Protocols and ports · network devices · wireless standards · SOHO networks · IP addressing · networking tools
| Lab | Title | Exam objective | |
|---|---|---|---|
| 05 | Protocols and Ports — Building the A+ Port Reference | lab PDF · worksheet PDF | Identify the TCP/UDP ports, transport protocol and secure replacement for every protocol on the CompTIA A+ Core 1 objective 2.1 list. |
| 06 | IPv4 Subnetting and Address Planning with IP Calculator | lab PDF · worksheet PDF | Calculate subnet masks, network and broadcast addresses, usable host ranges and CIDR notation, and design an address plan for a SOHO network (Core 1 objective 2.5). |
| 07 | Network Devices and Traffic Behaviour Analysis | lab PDF · worksheet PDF | Distinguish hub, switch, router, firewall and access point by the layer they operate at and the traffic behaviour each produces (Core 1 objectives 2.2 and 2.3). |
| 08 | Wireless Standards, Channel Planning and Interference | lab PDF · worksheet PDF | Compare 802.11 standards and frequency bands, and design a channel plan that avoids co-channel and adjacent-channel interference (Core 1 objective 2.3). |
| 09 | SOHO Network Configuration — DHCP, DNS, NAT and Port Forwarding | lab PDF · worksheet PDF | Configure a SOHO router including DHCP scope, DNS, NAT, DHCP reservations and port forwarding, and verify each service from a client (Core 1 objective 2.5). |
| 10 | Network Cabling — Termination, Testing and Tool Selection | lab PDF · worksheet PDF | Terminate twisted-pair cable to T568B, test it end to end, and select the correct tool for each cabling task (Core 1 objectives 2.3 and 3.1). |
| 11 | Packet Capture Analysis — Reading Real Network Traffic | lab PDF · worksheet PDF | Analyse a packet capture to identify protocols, conversations and anomalies, and use the evidence to support a network diagnosis (Core 1 objectives 2.1 and 5.7). |
Cables and connectors · RAM · storage and RAID · motherboards · CPUs and cooling · power supplies · printers
| Lab | Title | Exam objective | |
|---|---|---|---|
| 12 | Cables and Connectors — Identification and Selection | lab PDF · worksheet PDF | Identify every cable and connector on the A+ objective list by sight and select the correct one for a stated requirement (Core 1 objectives 3.1 and 3.2). |
| 13 | RAM Identification, Installation and Channel Configuration | lab PDF · worksheet PDF | Identify RAM types and form factors, install modules correctly and configure dual-channel operation, verifying the result in firmware and the OS (Core 1 objective 3.3). |
| 14 | Storage Devices and RAID Level Selection | lab PDF · worksheet PDF | Compare HDD, SSD, NVMe and hybrid storage, and select the correct RAID level for a stated capacity, performance and redundancy requirement (Core 1 objectives 3.3 and 3.4). |
| 15 | Motherboard, BIOS/UEFI and CMOS Configuration | lab PDF · worksheet PDF | Identify motherboard form factors, expansion slots and headers, and configure BIOS/UEFI settings including boot order, virtualization support, Secure Boot and TPM (Core 1 objectives 3.4 and 3.5). |
| 16 | CPU Architecture, Sockets and Cooling Solutions | lab PDF · worksheet PDF | Compare CPU architectures, socket types and cooling solutions, and diagnose thermal problems from observed behaviour (Core 1 objectives 3.4 and 5.2). |
| 17 | Power Supply Sizing, Connectors and Safety | lab PDF · worksheet PDF | Select a power supply by wattage, form factor, efficiency and connector complement, and apply electrical safety rules when working with power (Core 1 objectives 3.5 and 4.5). |
| 18 | Printer Installation, Configuration and the Laser Imaging Process | lab PDF · worksheet PDF | Install and share a printer, configure its settings and security, and map each stage of the laser imaging process to the print defect its failure produces (Core 1 objectives 3.6 and 3.7). |
Hypervisors · virtual machines · resource requirements · cloud models · shared resources and metered use
| Lab | Title | Exam objective | |
|---|---|---|---|
| 19 | Hypervisor Types and Virtual Machine Resource Planning | lab PDF · worksheet PDF | Distinguish Type 1 from Type 2 hypervisors, plan virtual machine resource allocation and identify the firmware prerequisite for virtualization (Core 1 objective 4.2). |
| 20 | Building and Configuring a Linux Virtual Machine | lab PDF · worksheet PDF | Provision, configure and verify a Linux virtual machine, and perform the post-installation tasks a technician must complete on any new guest (Core 1 objective 4.2). |
| 21 | Cloud Service and Deployment Model Selection | lab PDF · worksheet PDF | Compare IaaS, PaaS and SaaS and the public, private, community and hybrid deployment models, and select the correct combination for a stated business requirement (Core 1 objective 4.1). |
The CompTIA troubleshooting methodology · POST and boot faults · storage and RAID · display faults · printer and network symptoms
| Lab | Title | Exam objective | |
|---|---|---|---|
| 22 | Applying the CompTIA Six-Step Troubleshooting Methodology | lab PDF · worksheet PDF | Apply the CompTIA six-step troubleshooting methodology in order to a real fault, documenting each step (Core 1 objective 5.1). |
| 23 | POST, Boot and Power Fault Diagnosis | lab PDF · worksheet PDF | Diagnose no-power, no-POST and no-boot faults using beep codes, diagnostic LEDs and a systematic elimination sequence (Core 1 objective 5.2). |
| 24 | Storage and RAID Fault Diagnosis with S.M.A.R.T. | lab PDF · worksheet PDF | Diagnose storage faults using S.M.A.R.T. data, symptom analysis and RAID status, and choose the correct recovery action for each RAID level (Core 1 objective 5.3). |
| 25 | Display and Projector Fault Diagnosis | lab PDF · worksheet PDF | Diagnose display and projector faults by isolating source, cable, panel, backlight and settings as distinct failure points (Core 1 objective 5.4). |
| 26 | Mobile Device Hardware Fault Diagnosis | lab PDF · worksheet PDF | Diagnose mobile device hardware faults including battery, charging, screen, digitizer, port and overheating problems, applying the correct safety response (Core 1 objective 5.5). |
| 27 | Printer Fault Diagnosis from Print Defects | lab PDF · worksheet PDF | Diagnose printer faults by reading the physical defect on the page and mapping it to the failed component in the print process (Core 1 objective 5.6). |
| 28 | Network Fault Diagnosis — Command Line to Packet Level | lab PDF · worksheet PDF | Diagnose network faults by working the layers in order, from physical connectivity through addressing and DNS to application behaviour (Core 1 objective 5.7). |
Windows editions and installation · command line · Windows tools and MMC · file systems · macOS and Linux
| Lab | Title | Exam objective | |
|---|---|---|---|
| 29 | Windows Editions, Installation Types and Partitioning | lab PDF · worksheet PDF | Select the correct Windows edition and installation type for a requirement, and plan MBR or GPT partitioning to match the firmware mode (Core 2 objectives 1.1 and 1.9). |
| 30 | Windows Command Line — Navigation, Files and Copy Operations | lab PDF · worksheet PDF | Use the Windows command line for navigation, file management and resilient copy operations, choosing correctly between copy, xcopy and robocopy (Core 2 objective 1.2). |
| 31 | Windows Networking and Repair Commands | lab PDF · worksheet PDF | Use Windows networking and repair commands to diagnose connectivity and repair system file corruption (Core 2 objective 1.2). |
| 32 | Windows Management Tools — Task Manager, MMC and Snap-ins | lab PDF · worksheet PDF | Use Task Manager, the Microsoft Management Console and its snap-ins to diagnose performance, inspect logs and manage devices, disks, users and tasks (Core 2 objectives 1.3 and 1.4). |
| 33 | File Systems, Permissions and Share Configuration | lab PDF · worksheet PDF | Compare NTFS, FAT32 and exFAT, and configure NTFS and share permissions correctly, applying the most-restrictive rule (Core 2 objectives 1.9 and 2.5). |
| 34 | Linux Command Line Essentials on Killercoda | lab PDF · worksheet PDF | Use the Linux commands named in Core 2 objective 1.11 for navigation, file management, searching, process control and package management (Core 2 objective 1.11). |
| 35 | Linux Permissions, Ownership and User Management | lab PDF · worksheet PDF | Apply the Linux permission model to users, groups and others using symbolic and numeric notation, and manage users and sudo rights (Core 2 objective 1.11). |
| 36 | macOS Tools and Cross-Platform File System Compatibility | lab PDF · worksheet PDF | Identify macOS features and utilities and resolve cross-platform file system compatibility between Windows, macOS and Linux (Core 2 objectives 1.10 and 1.9). |
Physical and logical security · authentication and MFA · wireless security · malware · social engineering · workstation and mobile hardening
| Lab | Title | Exam objective | |
|---|---|---|---|
| 37 | Physical and Logical Security Control Design | lab PDF · worksheet PDF | Select and justify physical and logical security controls for a site, applying the principle of least privilege and defence in depth (Core 2 objectives 2.1 and 2.2). |
| 38 | Password Strength Analysis and Authentication Policy | lab PDF · worksheet PDF | Analyse password strength quantitatively and write an authentication policy grounded in entropy and crack-time evidence (Core 2 objectives 2.2 and 2.6). |
| 39 | Phishing Recognition and Social Engineering Defence | lab PDF · worksheet PDF | Identify phishing indicators and social engineering tactics, and design the user awareness training that defends against them (Core 2 objectives 2.4 and 2.7). |
| 40 | Malware Types, Symptoms and the Seven-Step Removal Procedure | lab PDF · worksheet PDF | Identify malware types by behaviour and apply the CompTIA seven-step malware removal procedure in order (Core 2 objectives 2.3 and 3.3). |
| 41 | Network Attack Recognition — Injection, XSS and Data Leakage | lab PDF · worksheet PDF | Recognise common application and network attacks including SQL injection, cross-site scripting, on-path attacks and denial of service, and state the defence for each (Core 2 objective 2.4). |
| 42 | Wireless Security and SOHO Router Hardening | lab PDF · worksheet PDF | Configure wireless encryption and harden a SOHO router against the attacks the default configuration invites (Core 2 objectives 2.9 and 2.10). |
| 43 | Windows Security Configuration and BitLocker Encryption | lab PDF · worksheet PDF | Configure Windows security settings including Defender, the firewall, UAC, account policy and BitLocker encryption (Core 2 objectives 2.5 and 2.6). |
| 44 | Data Destruction, Disposal and Regulated Data Handling | lab PDF · worksheet PDF | Select the correct data destruction method for a stated sensitivity and retention requirement, and handle regulated data according to its legal obligations (Core 2 objectives 2.8 and 4.6). |
Windows OS symptoms · recovery tools · malware removal · browser problems · mobile OS and application faults
| Lab | Title | Exam objective | |
|---|---|---|---|
| 45 | Windows OS Symptom Diagnosis and Recovery Tools | lab PDF · worksheet PDF | Diagnose common Windows symptoms and select the correct recovery tool, escalating from least to most destructive (Core 2 objectives 3.1 and 3.2). |
| 46 | Log Analysis with Regular Expressions | lab PDF · worksheet PDF | Filter and parse system logs with regular expressions to isolate the events that matter during troubleshooting (Core 2 objectives 3.1 and 4.8). |
| 47 | Malware Symptom Response and Browser Problem Resolution | lab PDF · worksheet PDF | Recognise malware and browser symptoms, apply the containment sequence and resolve browser-specific problems (Core 2 objectives 3.2 and 3.3). |
| 48 | Mobile OS and Application Troubleshooting | lab PDF · worksheet PDF | Diagnose and resolve mobile operating system and application faults including crashes, connectivity, battery and performance problems (Core 2 objectives 3.4 and 3.5). |
| 49 | System Restore, Backup Verification and Recovery Testing | lab PDF · worksheet PDF | Configure System Restore and Windows backup, then verify recovery by performing an actual restore (Core 2 objectives 3.1 and 4.3). |
Documentation and ticketing · asset management · change management · backup and recovery · safety and environment · professionalism · scripting and remote access
| Lab | Title | Exam objective | |
|---|---|---|---|
| 50 | Ticketing, Documentation and Knowledge Base Authoring | lab PDF · worksheet PDF | Write support tickets and documentation to professional standard, and author a knowledge base article from a resolved incident (Core 2 objective 4.1). |
| 51 | Change Management and Asset Management | lab PDF · worksheet PDF | Prepare a change request with risk analysis, rollback plan and approval path, and maintain an asset register through the procurement life cycle (Core 2 objectives 4.2 and 4.1). |
| 52 | Backup Strategy Design and the 3-2-1 Rule | lab PDF · worksheet PDF | Design a backup strategy specifying types, rotation, retention and off-site copy, and justify it against a stated recovery objective (Core 2 objective 4.3). |
| 53 | Safety Procedures, ESD Control and Environmental Compliance | lab PDF · worksheet PDF | Apply ESD, electrical and personal safety procedures, and comply with environmental requirements for disposal and equipment protection (Core 2 objectives 4.4 and 4.5). |
| 54 | Professional Communication, Scripting and Remote Access | lab PDF · worksheet PDF | Apply professional communication standards including handling difficult customers, and select appropriate scripting and remote access methods for support tasks (Core 2 objectives 4.7, 4.8 and 4.9). |
labs/
lab-01-laptop-teardown-and-field-replaceable-unit-identification/
README.md the full lab procedure
worksheet.md fill-in evidence record
lab-02-mobile-display-technology-and-digitizer-fault-diagnosis/
README.md the full lab procedure
worksheet.md fill-in evidence record
lab-03-mobile-connectivity-bluetooth-nfc-hotspot-and-cellular-configuration/
README.md the full lab procedure
worksheet.md fill-in evidence record
...
(54 lab folders in total)
README.md this index
tools.md the lab toolkit reference