Examkin

Soru

Zorluk: OrtaMobile Device Ports and Accessories

A retail technician is setting up a mobile point-of-sale system using an Android tablet. The technician attempts to connect a standard USB Type-A wired barcode scanner to the tablet's USB Type-C port using a basic passive adapter, but the tablet fails to detect or supply power to the scanner. Which of the following accessories is required to enable the tablet to function as the host device for this peripheral?

  1. A USB On-The-Go (OTG) adapterCevap
  2. B
    A Thunderbolt 3 to USB-C active converter
  3. C
    An updated Mobile Application Management (MAM) profile
  4. D
    A SIM card re-provisioning with updated IMEI registration

Cevap

A USB On-The-Go (OTG) adapter is required to enable the tablet to function as a USB host.
USB On-The-Go (OTG) is a specification that allows mobile devices such as tablets and smartphones to act as a USB host. When a USB OTG adapter is connected, hardware signaling instructs the mobile operating system to switch its USB controller into host mode, enabling it to supply power and communicate directly with external peripherals like barcode scanners, keyboards, or storage drives.

Adım Adım Çözüm

1
Identify the operational mode requirement of the mobile device.
The tablet normally operates in USB client/device mode when connected to a computer.
Connecting a USB peripheral like a barcode scanner requires the tablet to act as the USB host.
2
Select the correct accessory designed to trigger host mode.
A USB On-The-Go (OTG) adapter alters pin signaling to signal the OS to switch into host mode.
Standard passive adapters do not switch the controller into host mode, resulting in unpowered or unrecognized peripherals.

Anahtar Kavram

USB On-The-Go (OTG) Host Controller Capabilities
Tahmini Süre:1m 0s
Bu soruyu puanla

Konular

Mobile Device Ports and Accessories

Bu konudan daha fazla soru