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Difficulty: Very hardMobile Device Ports and Accessories

An IT technician is configuring a deployment of high-end mobile tablet devices for field engineers who must connect their devices to external 4K monitors and high-speed external RAID storage arrays requiring transfer rates up to 40 Gbps through a single cable connection. Which physical port technologies or interface protocols MUST be supported by the tablet's USB Type-C interface to meet these requirements? (Select TWO.)

  1. Thunderbolt 3 or 4 protocol capabilityAnswer
  2. DisplayPort Alternate Mode (Alt Mode)Answer
  3. C
    USB 3.2 Gen 2x1 standard compliance
  4. D
    Exchange ActiveSync peripheral passthrough

Answer

Thunderbolt 3 or 4 protocol capability and DisplayPort Alternate Mode (Alt Mode)
To support 40 Gbps throughput and drive external high-resolution displays over a single physical USB Type-C port, the mobile device hardware controller must support Thunderbolt 3 or 4 protocols for maximum bandwidth and DisplayPort Alternate Mode (Alt Mode) for carrying video signals.

Step-by-Step Solution

1
Analyze the bandwidth and video output requirements specified in the scenario.
The requirement specifies bandwidth up to 40 Gbps and video output to external 4K monitors over a single USB Type-C connection.
Determining the performance threshold helps identify which specific protocols must run over the physical port.
2
Evaluate protocol throughput standards for USB Type-C physical connectors.
Standard USB 3.2 protocols max out at 10 Gbps (Gen 2x1) or 20 Gbps (Gen 2x2), whereas Thunderbolt 3/4 provides the necessary 40 Gbps bandwidth over USB Type-C.
Physical USB-C connector shape does not guarantee maximum protocol speed without host controller support for Thunderbolt.
3
Identify the standard video transmission protocol for sending display signals through USB Type-C.
DisplayPort Alternate Mode (Alt Mode) enables the transmission of native video data streams over the USB-C pins to drive external monitors.
Without Alt Mode support, the USB-C port cannot natively drive high-resolution external display monitors.

Key Concept

Mobile device physical ports like USB Type-C require specific underlying controller protocols (such as Thunderbolt 3/4 and DisplayPort Alt Mode) to support high-speed data transfer rates up to 40 Gbps and external multi-monitor video outputs.
Estimated Time:2m 0s
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Mobile Device Ports and Accessories

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