CompTIA A+ Module 01

You purchase a new desktop computer that does not have wireless capability, and then you decide that you want to use a wireless connection to the Internet. What is one of the least expensive ways to upgrade your system to wireless? (There is more than one correct answer.)

• Trade in the computer for another computer that has wireless installed.

• Purchase a second computer that has wireless capability.

• Purchase a wireless expansion card, and install it in your system.

• Purchase a USB wireless adapter, and connect it to the computer by way of a USB port.

You disassemble and reassemble a desktop computer. When you first turn it on, you see no lights and hear no sounds. Nothing appears on the monitor screen. What is the most likely cause of the problem?

• A memory module is not seated properly in a memory slot.

• A wire in the case is obstructing a fan.

• You forgot to plug in the monitor's external power cord.

• Power cords to the motherboard are not connected.

A four-year-old laptop will not boot and presents error messages on-screen. You have verified with the laptop technical support that these error messages indicate the wireless card has failed and needs replacing. What is the first step you should take to prepare for the repair?

• Find the service manual to show you how to replace the wireless card.

• Ask yourself if replacing the wireless card will cost more than purchasing a new laptop.

• Find a replacement wireless card.

• Ask if the laptop is still under warranty.

What type of computer is likely to use SO-DIMMs, have an internal power supply, and use a desktop processor socket?

• All-in-one Computer

• Laptop Computer

• Notebook Computer

Why are laptops usually more expensive than desktop computers with comparable power and features?

• Laptops are more expensive due to their compact design, portability, and integrated components.
• Laptops have more upgrade options than desktops, increasing their cost.
• Desktop computers are designed for gaming, making them more expensive.
• Laptops are cheaper because they use less powerful components.

When a laptop internal device fails, what is one option you can use to deal with the problem? (There are multiple correct answers.)

• Return the laptop to a service center for repair.

• Substitute an external component for the internal component.

• Upgrade the operating system.

• Replace the internal component.

Your boss asks you to upgrade a desktop computer to add an extra DVI port for a second monitor. How would you recommend completing this request?

• Install a dedicated graphics card with an extra DVI port.
• Connect the second monitor using a HDMI to DVI cable.
• Use a USB to DVI adapter for the second monitor.
• Replace the existing DVI port with a VGA port.

A technician is building a custom gaming computer for a customer. In what order should the technician install the main components?

• power supply, drives, motherboard, cards

• 
  drives, motherboard, cards, power supply

• motherboard, cards, power supply, drives

• motherboard, power supply, drives, and cards

What two devices in a computer should be considered "black boxes," and should never be opened due to risks involving charged capacitors?

• Power supply unit (PSU) and CRT monitor
• Motherboard and SSD
• Graphics card and CPU
• Hard drive and RAM

You're building a new desktop computer from parts you picked out and purchased. You invested a good deal of money in this computer and want to be sure to protect your investment while you assemble it. What precautions should you take to protect your computer from damage and electrostatic discharge?