Accessibility features enable users with disabilities to use computers effectively. CompTIA A+ 220-1102 tests Windows, macOS, iOS, and Android accessibility settings. This guide covers every accessibility concept in the A+ Core 2 objectives.
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Access: Settings → Ease of Access (Windows 10) or Settings → Accessibility (Windows 11). Control Panel → Ease of Access Center. Vision accommodations: Magnifier: zooms in on part of the screen. Modes: Full screen, Lens (follows cursor), Docked (magnified panel at screen edge). Narrator: screen reader that reads aloud text on screen. Built-in in Windows. Third-party: JAWS, NVDA (NonVisual Desktop Access — free). High Contrast mode: increases contrast for users with low vision. Color filters: adjust color display for color blindness. Hearing accommodations: Closed Captions: configurable for media playback. Visual notifications: flash the screen or taskbar instead of playing sounds. Mono audio: merges stereo channels for users with hearing in one ear. Motor/mobility accommodations: Sticky Keys: allows modifier keys (Shift, Ctrl, Alt) to be pressed one at a time. Toggle Keys: plays a sound when Caps Lock, Num Lock, or Scroll Lock is pressed. Filter Keys: ignores brief or repeated keystrokes (for users with tremors). Mouse Keys: use numeric keypad to control mouse pointer. On-screen keyboard: virtual keyboard controlled by mouse, touch, or eye-tracking.
Access: System Preferences → Accessibility (or System Settings → Accessibility in Ventura+). Vision: Zoom (Cmd+Option+= to zoom, Cmd+Option+- to zoom out), VoiceOver (built-in screen reader, activated with Cmd+F5), Display options (increase contrast, reduce motion, color filters for color blindness). Hearing: Closed Captions, visual alerts (flash screen on alert), Mono Audio. Mobility: Sticky Keys, Slow Keys, Mouse Keys, Dwell Control (auto-click based on cursor position), Switch Control (control Mac with adaptive switches). Dictation: Speech → Dictation enables voice input. Voice Control: control the Mac entirely by voice (macOS Catalina+). Touch screen (iPad): VoiceOver gestures specific to touch interface. Switch Control: control the device using external Bluetooth switches — for users who cannot use the touch screen.
iOS Accessibility: Settings → Accessibility. VoiceOver: full screen reader with gesture navigation. Magnifier: use camera as a magnifying glass (triple-click side button). Display & Text Size: larger text, bold text, increase contrast. Spoken Content: speak selection, speak screen. AssistiveTouch: on-screen button for gestures that are difficult (home button, shake, etc.). Switch Control: external switch input for limited mobility. Led Flash for Alerts: camera flash blinks instead of sound for notifications. RTT (Real-Time Text): text-based calls for users with speech or hearing impairments. Android Accessibility: Settings → Accessibility. TalkBack: screen reader (similar to VoiceOver). Magnification: triple-tap to magnify. Font size and display size settings. High contrast text. Select to Speak (speak selected text). Switch Access: use external switches for navigation. Hearing aids: directly connect modern hearing aids via Bluetooth MFi (iOS) or ASHA (Android).
These questions are representative of what you will see on A+ exams. The correct answer and explanation are shown immediately below each question.
A user with a tremor in their hands accidentally types double letters because they press keys too briefly or hold them too long. Which Windows accessibility feature should be configured?
Explanation: Filter Keys adjusts the keyboard response rate — it can ignore brief keystrokes and repeated keystrokes, helping users with tremors who accidentally trigger key presses.
Press the Windows key + Ctrl + Enter to toggle Narrator on/off. Win+Plus (+) activates Magnifier. Shift key pressed 5 times activates Sticky Keys prompt. The Ease of Access button on the Windows login screen provides quick access to Magnifier, Narrator, On-Screen Keyboard, High Contrast, and Sticky Keys before login.
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