CompTIA A+ Certification Core 1 (220-1101) - Network Card Troubleshooting

The video tutorial covers the evolution of network interface cards (NICs), from standalone cards to built-in components on motherboards and laptops. It explains how to manage network settings using Device Manager, focusing on speed and duplex settings, which are typically set to auto negotiation. The tutorial also discusses Wake on LAN, a feature that allows computers to be turned on remotely using a magic packet. Finally, it covers the role of link lights in troubleshooting network connectivity, emphasizing the importance of checking both the device and switch for proper connection.

What is the primary function of a network interface card (NIC)?

• To store data

• To connect a computer to a network

• To manage power supply

• To process graphics

In modern computers, where are network cards typically found?

• As external devices

• Built into the motherboard

• As separate PCI cards

• In the power supply unit

What does a down arrow next to a network adapter in Device Manager indicate?

• The adapter is outdated

• The adapter is not installed

• The adapter is disabled

• The adapter is functioning normally

What is the purpose of the 'auto negotiation' setting in NIC properties?

• To manually set the network speed

• To automatically adjust speed and duplex settings

• To disable the network card

• To update the network card drivers

What is a 'magic packet' used for in networking?

• To reset network settings

• To encrypt data

• To install software

• To wake up a computer remotely

What does a steady link light on a network device indicate?

• The device is malfunctioning

• The device is connected to a network

• The device is powered off

• The device is updating

Why is it important to check link lights on both the device and the switch?

• To confirm device compatibility

• To check for software updates

• To ensure the device is powered

• To verify network connectivity