Correct Answer:

Your DNS settings are incorrect. Given that most systems use DHCP, it's rare to have a problem like this, but if you typed in invalid manual DNS settings into your NIC's Properties, this can happen.

Incorrect Answers:

If you were to turn off the DNS Client service on your computer, you would get this problem. However, there is a much smaller chance that this service would be disabled than that someone had entered an invalid DNS service IP address.

In a single network, everyone USUALLY uses the same DNS server, so if the DNS server is down for you, it's down for everyone else. Granted, you might have a different DNS server, so this answer is valid, but not as valid as entering an invalid DNS server IP address.

Routers don’t have an item in their Access Control Lists called "DNS permissions". You COULD block DNS from getting through your router by blocking port 53 (DNS), but then no one could get DNS access. Most routers have the ability to block a port number for a single IP or MAC address, but, again, it's simply too unlikely.

Correct Answer:

Use a multimeter to test the AC adapter's output voltage.

Incorrect Answers:

An induction toner enables you to locate specific network cables, often inside a wiring closet.

A power supply tester enables you to test a power supply when it's not plugged into a computer—a handy device, but not for testing an AC adapter.

While you might be successful testing with a paper clip, it's probably not a good idea!

Correct Answer:

Go to the Sound applet in the Control Panel and ensure your sound card is using the HDMI to output sound. You probably just need to select or enable it.

Incorrect Answers:

Speakers are speakers. They don't care if it's a digital signal or an analog signal. As long as you have the right connectors, you'll be good to go.

You don't need a third party application to take advantage of HDMI.

All HDMI cables can send video and audio over the same cable.

Correct Answer:

Since the HDMI cable resolved the issue, the cable was damaged.

Incorrect Answers:

Display configuration will adjust when a new type is connected.

The VGA cable had already been in use.

Since the cable resolved the issue, the drivers were not outdated.

Correct Answer:

OneDrive is a file hosting service that allows you to sync files and later access them from your devices or from a web browser. OneDrive is the file hosting service defaulted for Microsoft devices.

Incorrect Answers:

Google drive is a cloud based sync service, but designed for use with Gmail.

iCloud is a cloud based sync service, but designed for use with Apple products.

FTP is a network protocol used to transfer computer files between a client and server.

Correct Answer:

The printer's IP address looks like it is not in the same network as the rest of the PCs—certainly worth checking next!

Incorrect Answers:

The network switch is not the problem if you can still access the server and Internet.

The printer's NIC is probably not the issue if it can self-test okay.

The network's subnet mask is not the issue if the server and Internet can be accessed.

Correct Answer:

Bad hard drive. These two sounds indicate a hard drive that will soon crash. Make a backup of critical data.

Incorrect Answers:

Anything that rotates inside your computer is capable of making these sounds. However, given the gravity of the situation if your hard drive fails, you should assume the hard drive first and take action to save your data.

Correct answers:

Most laptops have a VGA port. Many new ones also have an HDMI port.

Incorrect answers:

PS/2 ports enable you to connect a keyboard or pointing device (like a mouse) to a computer.

Serial ports are ancient and were used to connect mice.

RCA jacks are for audio, not video.

Correct Answer:

DSL connections use the PPPoE authentication protocol.

Incorrect Answers:

Dial-up networking uses the PPP protocol.

WPA is a wireless encryption standard.

VPN uses authentication and encryption, but not PPPoE.

Correct Answer:

MAC filtering enables you to select which computers you want to allow on to the network based on their MAC addresses. In this case, only one system needs to connect, so that's the one you should allow.

Incorrect Answers:

Using DHCP won't prevent unauthorized computers from connecting. DHCP just hands out IP addresses automatically.

Static IP addresses won't help, either.

Using a proxy just makes your computer connect to the Internet through an intermediary server.