CompTIA A+ 220-1101 EVEN MOAR MADNEZZ

Which of the following options provides correct information about 2.4GHz and 5GHz wireless frequencies?

• 2.4GHz has less interference. 5GHz transmits in lower speed.

• 2.4GHz has a higher bandwidth. 5GHz has lower transmit power.

• 2.4GHz has a higher data rate. 5GHz has 23 channels.

• 2.4GHz has 11 channels. 5GHz has no data interference.

• 2.4GHz has a higher coverage area. 5GHz has higher bandwidth.

A technician is tasked with upgrading a laptop's RAM. Which of the following steps should the technician take FIRST?

• Confirm that both the current and new memory are from the same brand.

• Run a diagnostic test on the current memory.

• Verify the memory requirements of the motherboard.

• Connect an electrostatic discharge strap.

A startup is looking to immediately expand its data center but does not have the personnel or space to manage everything internally. The organization has multiple small offices and remote users with large computational and storage-solution requirements. Funding is not an issue for the company. Which of the following can BEST accomplish the company's goals?

• SaaS

• IaaS

• ISP

• SDN

A technician is configuring a new CAD workstation that has four large hard drives. The workstation will be used to edit large, critical files, so the storage configuration should be both fast and redundant. Which of the following RAID levels BEST meets these requirements?

• 0

• 1

• 5

• 10

A technician receives a ticket that states a mobile payment device is having issues with its contactless payment feature. The device is not detecting payment options. Which of the following is the MOST likely cause of the issue?

• NFC

• Bluetooth

• Wi-Fi

• Lightning adapter

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?

• Power cycle the laptop.

• Plug in the monitor to the USB port.

• Adjust the monitor display settings.

• Power cycle the monitor.

A user brings an older laptop to the help desk and reports issues with the keyboard. Upon inspection, the technician does not see any external damage but notices that many keystrokes do not register in a word processor. The laptop works fine when the technician tests it with an external keyboard. Which of the following actions would MOST likely resolve the issue?

• Disable the sticky keys feature.

• Clean the keyboard.

• Reset the BIOS settings to default.

• Charge the laptop.

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An administrator is configuring a corporate-owned smartphone for a new manager. The company requires the ability to wipe the phone's data remotely in the event of loss or theft and the capability to approve applications installed on the phone. Which of the following tools would BEST meet this need?

• Tethering to a corporate-owned laptop

• Mobile device management

• Corporate enterprise email

• WPA2-Enterpise wireless

A user reports that printed receipts have black smudges over the entire image. The text is still present but is very dark and sometimes illegible. Which of the following are the MOST likely cause and solution for the printer issue?

• The ribbon is jammed and is rubbing on the paper. Clear the bad ribbon and feed it through properly.

• The blue ink cartridge was loaded with black ink. Put in the correct ink and clean the printhead.

• The printer is loaded with the wrong type of paper. Replace the receipt paper with carbon paper.

• The printhead is too hot. Adjust the temperature down and retry printing.

Several users who share a multifunction printer in an office have reported unintended, thin, vertical lines that cover the entire height of every page printed from the printer. Which of the following steps should a technician complete in order to MOST likely resolve this issue?

• Replace the printer paper with a new ream.

• Clear the print spooler on each computer.

• Perform the drum-cleaning procedure.

• Reinstall the printer driver on each computer.