220-1101 무료 덤프문제 온라인 액세스

A user can make and receive voice calls but cannot send or receive MMS text messages on a smartphone.
Which of the following is the most likely cause of the issue?

• A.Airplane mode is enabled.
• B.The device is outside the cellular coverage area.
• C.The mobile data service is disabled.
• D.The SIM card is defective.

A user who is facilitating a videoconference reports that the participants can be heard. However, when the user attempts to speak, none of the participants can hear the user. Which of the following is the FIRST step the technician should take?

• A.Replace the laptop.
• B.Check the audio inputs.
• C.Try another microphone.
• D.Restart the Videoconference.

A technician made several upgrades to a computer and then determined the power supplied by the PSU is insufficient. Which of the following would MOST likely cause the insufficiency? (Select TWO).

• A.Adding a CMOS battery
• B.Adding more RAM
• C.Adding an optical drive
• D.Upgrading the firmware
• E.Upgrading the graphics card
• F.Replacing the HDD with an SSD

Which of the following 802.11 standards supports both 5GHz and 2.4GHz channel frequencies?

• A.802.11ac
• B.802.11g
• C.802.11a
• D.802.11b

A technician is working on a help desk ticket for a user who wants the filament replaced in a 3-D printer.
Which of the following should the technician do to remove the old filament and load the new one?

• A.Cut a sharp angle on the end of the strand.
• B.Withdraw the filament and remove the spool.
• C.Push the filament along until resistance is felt.
• D.Preheat the nozzle to melting temperature.