Free CompTIA 220-1101 Exam Dumps Questions & Answers

Which of the following services checks whether the sender's IP address is associated with the sender's domain name when receiving email?

• A.  DKIM
• B.  DMARC
• C.  SPF
• D.  MX

A user wants a second monitor installed on a laptop. The VGA/DVI or HDMI cables have already been connected. Which of the following should the technician do to configure the laptop to show both screens?

• A.  Power cycle the laptop.
• B.  Adjust the monitor display settings.
• C.  Plug in the monitor to the USB port.
• D.  Power cycle the monitor.

Which of the following wireless technologies is used by mobile devices to process payments at kiosks?

• A.  Wi-Fi 6
• B.  RFID
• C.  NFC
• D.  Bluetooth

The output from a dot matrix printer has become lighter over time. Which of the following should a technician do to fix the issue?

• A.  Clean the printhead.
• B.  Replace the ribbon.
• C.  Calibrate the alignment.
• D.  Install a maintenance kit.

A new VolP solution is being implemented at a corporate office for more than 200 users. The new VolP devices do not require AC adapters at the users' desks. Which of the following network devices should a technician purchase?

• A.  Firewall
• B.  Router
• C.  Power injector
• D.  PoE switch