Video Cables and Connectors for A+
Short answer
Video connectors fall into modern digital (HDMI, DisplayPort) and legacy (DVI, VGA). For A+ purposes, recognizing which physical connector fits a described display scenario is the main skill. If a laptop has only HDMI and a projector only VGA, the technician should recognize a display-adapter or converter might be required and that analog/digital differences matter.
Why it appears on the exam
- Identify the connector family from an image or scenario (HDMI, DP, DVI, VGA). - Choose the correct cable for two devices that share a connector family. - Recognize that a VGA-only projector requires legacy analog support and that a passive plug adapter may not always work. Unfair targets to avoid: version bandwidth math (HDMI 2.1), deep protocol conversion design, or HDCP negotiation mechanics.
Key concepts
Concept 1
Required terms
HDMI: A common digital audio/video connector used with modern TVs, monitors, and projectors. DisplayPort: A digital display connector common on business desktops, GPUs, and some laptops. DVI: An older digital (and sometimes analog) display connector family found on legacy monitors/desktops. VGA: A legacy analog video connector commonly used on older monitors and projectors.
Example
A conference-room projector only provides VGA and the laptop has HDMI output: this is a display connector mismatch requiring an adapter or converter depending on signal expectations.
Concept 2
How Video Cables and Connectors works
Video connectors fall into modern digital (HDMI, DisplayPort) and legacy (DVI, VGA). For A+ purposes, recognizing which physical connector fits a described display scenario is the main skill. If a laptop has only HDMI and a projector only VGA, the technician should recognize a display-adapter or converter might be required and that analog/digital differences matter.
Example
A desktop and monitor both have DisplayPort: choose a DisplayPort cable for a direct connection.
Concept 3
Common confusion
Beginners often assume all display connectors are interchangeable. They are not: VGA is analog, HDMI and DisplayPort are digital. Physical fit and signal type both matter when choosing an adapter or cable.
Example
A conference-room projector only provides VGA and the laptop has HDMI output: this is a display connector mismatch requiring an adapter or converter depending on signal expectations.
Concept 4
Core 1 (220-1201) question cues
Identify the connector family from an image or scenario (HDMI, DP, DVI, VGA); Choose the correct cable for two devices that share a connector family; Recognize that a VGA-only projector requires legacy analog support and that a passive plug adapter may not always work; Unfair targets to avoid: version bandwidth math (HDMI 2.1), deep protocol conversion design, or HDCP negotiation mechanics.
Example
A desktop and monitor both have DisplayPort: choose a DisplayPort cable for a direct connection.
Sample questions
Select an answer to reveal the explanation. For tracked practice and weak-area review, use the Cultiv8 app.
Q1.A technician is troubleshooting this situation: A conference-room projector only provides VGA and the laptop has HDMI output: What should they identify?
Q2.For this A+ objective, the scenario says: A desktop and monitor both have DisplayPort: choose a DisplayPort cable for a direct connection. What is the best match?
Q3.An A+ support scenario describes this situation: An older digital (and sometimes analog) display connector family found on legacy monitors/desktops. Which answer fits best?
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