Which of the following are mobile operating systems used on smartphones? (Select two).

• A.macOS
• B.Windows
• C.Chrome OS
• D.Linux
• E.iOS
• F.Android

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A technician installed Windows 10 on a workstation. The workstation only has 3.5GB of usable RAM, even though the technician installed 8GB. Which of the following is the MOST likely reason this system is not utilizing all the available RAM?

• A.The system is missing updates.
• B.The systems utilizing a 32-bit OS.
• C.The system's memory is failing.
• D.The system requires BIOS updates.

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While testing a new computer, a technician hears a loud buzzing sound, smells smoke, and sees a flame inside the power supply. Which of the following actions should the technician take first?

• A.Smother the fire by replacing the system case.
• B.Disconnect the power cord from the wall outlet.
• C.Turn off the power supply switch.
• D.Extinguish the fire with water.

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Which of the following Is used to identify potential issues with a proposed change poor lo implementation?

• A.Request form
• B.Rollback plan
• C.End-user acceptance
• D.Sandbox testing

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A technician is troubleshooting a Windows 10 PC that is unable to start the GUI. A new SSD and a new copy of Windows were recently installed on the PC. Which of the following is the most appropriate command to use to fix the issue?
* msconfig

• A.chkdsk
• B.sfc
• C.diskpart
• D.mstsc

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