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Difficulty: MediumMobile Device Ports and Accessories

Match each mobile device port or accessory technology with its primary technical capability or operational requirement.

  • USB-C with DisplayPort Alternate ModeTransmits high-speed peripheral data alongside native video signals over a single cable
  • Micro-USB with USB OTG (On-The-Go)Allows a mobile device to act as a USB host to directly access external storage drives
  • Lightning ConnectorProprietary 8-pin reversible connector used primarily on legacy Apple mobile devices
  • Near Field Communication (NFC)Establishes short-range wireless communication (~4 cm) for tap-to-pair accessories and mobile payments

Answer

USB-C with DisplayPort Alternate Mode matches transmitting high-speed data and native video signals over a single cable. Micro-USB with USB OTG matches allowing a mobile device to act as a USB host for external storage drives. Lightning Connector matches the proprietary 8-pin reversible connector used primarily on legacy Apple mobile devices. Near Field Communication (NFC) matches establishing short-range wireless communication for tap-to-pair accessories and mobile payments.
Each port and connection protocol is matched according to its standard CompTIA A+ hardware specification: USB-C Alt Mode enables native video transmission, Micro-USB OTG enables host-mode peripheral attachment, Lightning is Apple's 8-pin reversible connector, and NFC provides short-range (~4 cm) wireless pairing and payments.

Step-by-Step Solution

1
Analyze the capabilities of USB-C DisplayPort Alternate Mode.
Identify that Alt Mode routes video signaling directly through the physical USB-C interface.
DisplayPort Alt Mode leverages dedicated high-speed lanes within USB-C to carry native video signals alongside data.
2
Identify the primary function of USB On-The-Go (OTG).
Match USB OTG with mobile host functionality.
USB OTG changes the pin configuration to switch the mobile device from client mode to host mode, enabling communication with external flash drives.
3
Evaluate the hardware specifications of the Lightning interface.
Match Lightning to Apple's 8-pin reversible physical standard.
Lightning is an 8-pin digital connector introduced by Apple as a reversible replacement for the 30-pin dock connector.
4
Assess the range and application of Near Field Communication (NFC).
Match NFC with very short-range wireless pairing and payment capabilities.
NFC operates at 13.56 MHz over distances under 4 cm, making it ideal for tap-to-pair peripherals and contactless payment transactions.

Key Concept

Mobile Device Ports, Connector Specifications, and Wireless Accessory Standards
Estimated Time:1m 30s
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Topics

Mobile Device Ports and Accessories

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