CompTIA A+ Certification Exam (901) : 220-901
Updated: Jun 02, 2026
Q & A: 695 Questions and Answers
Questions and Answers from our CompTIA A+ Certification Exam (901) Updated Study Material are edited by our certified professionals with accuracy for 100% pass guaranteed of 220-901 Actual Test. Please check the free demo of CompTIA A+ Certification Exam (901) Exam Practice Material before purchased.
Updated: Jun 02, 2026
Q & A: 695 Questions and Answers
The cost of CompTIA A+ is 250 USD.
Reference: https://certification.comptia.org/certifications/a
| Topic | Details |
|---|---|
| Hardware34% | |
| Given a scenario, configure settings and use BIOS/UEFI tools on a PC. | 1. Firmware upgrades/flash BIOS 2. BIOS component information
3.BIOS configurations
4.Built-in diagnostics
|
| Explain the importance of motherboard components, their purpose and properties. | 1.Sizes
2.Expansion slots
3.RAM slots
6.CMOS battery
10.Bus speeds |
| Compare and contrast various RAM types and their features. | 1.Types
a)Single channel vs. dualchannel vs. triple channel
2.RAM compatibility |
| Install and configure PC expansion cards. | 1.Sound cards 2.Video cards 3.Network cards 4.USB cards 5.Firewire cards 6.Thunderbolt cards 7.Storage cards 8.Modem cards 9.Wireless/cellular cards 10.TV tuner cards 11.Video capture cards 12.Riser cards |
| Install and configure storage devices and use appropriate media. | 1.Optical drives
2.Magnetic hard disk drives
3.Hot swappable drives
5.RAID types
6.Tape drive
|
| Install various types of CPUs and apply the appropriate cooling methods. | 1.Socket types
|
| Compare and contrast various PC connection interfaces, their characteristics and purpose. | 1.Physical connections
3.Characteristics
|
| Install a power supply based on given specifications. | 1.Connector types and their voltages
|
| Given a scenario, select the appropriate components for a custom PC configuration to meet customer specifications or needs. | 1.Graphic/CAD/CAM design workstation
2.Audio/video editing workstation
3.Virtualization workstation
4.Gaming PC
5.Home theater PC
6.Standard thick client
|
| Compare and contrast types of display devices and their features. | 1.Types
2.Refresh/frame rates
|
| Identify common PC connector types and associated cables. | 1.Display connector types
2.Display cable types
3.Device cables and connectors
4.Adapters and convertors
|
| Install and configure common peripheral devices. | 1.Input devices
2.Output devices
3.Input & output devices
|
| Install SOHO multifunction device/printers and configure appropriate settings. | 1.Use appropriate drivers for agiven operating system
2.Device sharing
3.Public/shared devices
|
| Compare and contrast differences between the various print technologies and the associated imaging process. | 1.Laser
2.Inkjet
3.Thermal
4.Impact
5.Virtual
|
| Given a scenario, perform appropriate printer maintenance. | 1.Laser
2.Therma
3.Impact
4.Inkjet
|
| Networking 21% | |
| Identify the various types of network cables and connectors. | 1.Fiber
2.Twisted Pair
3.Coaxial
|
| Compare and contrast the characteristics of connectors and cabling. | 1.Fiber
2.Twisted pair
3.Coaxial
|
| Explain the properties and characteristics of TCP/IP. | 1.IPv4 vs. IPv6 2.Public vs. private vs. APIPA/link local 3.Static vs. dynamic 4. Client-side DNS settings 5.Client-side DHCP 6. Subnet mask vs. CIDR 7.Gateway |
| Explain common TCP and UDP ports, protocols and their purpose. | 1.Ports
2.Protocols
3.TCP vs. UDP |
| Compare and contrast various WiFi networking standards and encryption types. | 1.Standards
2.Encryption types
|
| Given a scenario, install and configure SOHO wireless/ wired router and apply appropriate settings. | 1.Channels 2.Port forwarding, port triggering 3.DHCP (on/off) 4.DMZ 5.NAT/DNAT 6.Basic QoS 7.Firmware 8. UPnP |
| Compare and contrast Internet connection types, network types and their features. | 1.Internet connection types
2.Network Types
|
| Compare and contrast network architecture devices, their functions and features. | 1.Hub 2.Switch 3.Router 4.Access point 5.Bridge 6.Modem 7.Firewall 8.Patch panel 9.Repeaters/extenders 10.Ethernet over Power 11.Power over Ethernet injector |
| Given a scenario, use appropriate networking tools. | 1.Crimper 2.Cable stripper 3.Multimeter 4.Tone generator and probe 5.Cable tester 6.Loopback plug 7.Punchdown tool 8.WiFi analyzer |
| Mobile Devices 17% | |
| Install and configure laptop hardware and components. | 1.Expansion options
2.Hardware/device replacement
|
| Explain the function of components within the display of a laptop. | 1.Types
2.WiFi antenna connector/placement |
| Given a scenario, use appropriate laptop features. | 1.Special function keys
Airplane mode |
| Explain the characteristics of various types of other mobile devices. | 1.Tablets 2.Smartphones 3.Wearable technology devices
4.Phablets |
| Compare and contrast accessories and ports of other mobile devices. | 1.Connection types
|
| Hardware and Network Troubleshooting 28% | |
| Given a scenario, troubleshoot common problems related to motherboards, RAM, CPU and power with appropriate tools. | 1.Common symptoms
Distended capacitors 2.Tools
|
| Given a scenario, troubleshoot hard drives and RAID arrays with appropriate tools. | 1.Common symptoms
|
| Given a scenario, troubleshoot common video, projector and display issues. | 1.Common symptoms
|
| Given a scenario, troubleshoot wired and wireless networks with appropriate tools. | 1.Common symptoms
2.Hardware tools
3.Command line tools
|
| Given a scenario, troubleshoot and repair common mobile device issues while adhering to the appropriate procedures. | 1.Common symptoms
|
| Given a scenario, troubleshoot printers with appropriate tools. | 1.Common symptoms
2.Tools
|
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