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Review: Mobile Devices

Authored by Wayground CTE

Information technology (IT)

9th Grade

Review: Mobile Devices
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24 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which storage device has no moving parts and offers faster read speeds in a laptop?

ODD (optical disc drive)

PSU (power supply unit)

HDD (hard disk drive)

SSD (solid-state drive)

Answer explanation

SSDs use flash memory with no moving parts, giving faster reads than mechanical HDDs. HDDs rely on spinning platters, which slow access times.

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

A technician is about to replace laptop RAM. Which precaution prevents damage to the new module?

Disable the BIOS

Unplug the display

Remove the CPU

Wear an ESD strap

Answer explanation

An ESD strap grounds the technician to prevent static from damaging sensitive components like RAM.

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which laptop feature allows a user to log in using a fingerprint?

Smart card reader

Biometric reader

NFC tag scanner

PIN entry pad

Answer explanation

Biometric readers authenticate users by physical traits like fingerprints. A PIN is knowledge-based, not biometric.

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which connector did most Apple iPhones use before USB-C adoption?

Lightning connector

Micro-USB connector

USB-A connector

Mini-USB connector

Answer explanation

Lightning was Apple's proprietary connector for iPhones before USB-C was adopted. Micro-USB was common on Android devices, not iPhones.

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

A user wants to share a phone's cellular data with a tablet over Wi-Fi. Which feature should be enabled?

NFC sharing mode

Mobile hotspot

USB tethering

Bluetooth pairing

Answer explanation

A mobile hotspot broadcasts cellular data over Wi-Fi so nearby devices can connect wirelessly. USB tethering and Bluetooth pairing do not use Wi-Fi for sharing.

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which accessory is best suited for precise handwriting input on a tablet?

Stylus

Speaker

Webcam

Headset

Answer explanation

A stylus enables accurate pen-like input on touch screens for writing or drawing.

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which device provides full desktop expansion, including multiple displays and Ethernet, for a docked laptop?

Port replicator unit

KVM switch box

Docking station

Powered USB hub

Answer explanation

Docking stations extend full desktop functionality including video and networking. Port replicators only duplicate existing ports without adding major new capabilities.

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