chapter 7

Question 1

What is an access point (AP) in infrastructure mode?

Answer 1

An access point is a wireless networking hardware device that acts as a hub for connecting wireless devices to a wired network. The access point serves as a bridge between wireless devices and a wired network, allowing wireless devices to connect to the Internet.

Question 2

WIreless hosts such as laptops, smartphones, and other devices are connected to the Internet via an?

Answer 2

Access point (AP)

In infrastructure mode, the access point typically connects to a router or switch, which in turn is connected to the Internet.

Question 3

What happens when a host connects to an access point (AP) ?

Answer 3

When a wireless host connects to an access point in infrastructure mode, it must first authenticate itself to the access point. Once authenticated, the wireless host is assigned an IP address on the network and can begin to communicate with other devices on the network and access the Internet.

Question 4

Describe Ad-hoc mode:

Answer 4

In Ad-hoc mode, wireless hosts communicate directly with one another without the need for an access point. This means that each wireless host on the network must be configured with an IP address and other network settings. Each host is responsible for routing packets to other hosts on the network.

Question 5

How do wireless stations discover and identify the access point using….

Answer 5

Beacon frames

Question 6

What is attenuation of the electromagnetic signal when travelling through matter is called?

Answer 6

Path Loss

Question 7

When two or more sources transmit at the same time on the same frequency, then interferance will occur?

Answer 7

Yes, this is known as “co-channel interference” or “collision”.