At what layer in the OSI model are hardware addresses referenced?

HOTSPOT
For each of the following statements, select Yes if the statement is true. Otherwise, select No. Each correct selection is worth one point.

Which protocol can be used to encrypt packets on the Internet?

You need to run four Ethernet network drops. Each drop is approximately 125 feet/46.33 meters.
An interference exists along the path of each drop.
You need to ensure that interference is reduced.
Which cable type should you use?

You work at a coffee shop. Your supervisor asks you to help set up a computer network.
The network needs to have the following items:
* A public facing web server
* A Wi-Fi network for customers
* A private network for the point of sale terminals
* An office PC
* A file/print server
* A network printer
You need to set up a perimeter network to protect the network.
Which two items should you include in the perimeter network? (Choose two.)