Laptops and Mobile Devices Lesson 006: Mobile Device Wireless Connectivity Part 1

What connection types does mobile device connectivity encompass?

Wi-Fi, cellular, hotspots, Bluetooth, and near-field communications.

What does NFC stand for?

Near-Field Communication.

Wi-Fi

Comes in different types of Wi-Fi, including wireless a, b, g, n, ac, and ax.

What is Wi-Fi also known as?

Wireless Network.

What does WAP stand for?

Wireless Access Point.

What is the speed of a Wi-Fi mobile connection dependent on?

The wireless card in the device and the WAP.

What is a common issue that comes up when working with smaller devices with Wi-Fi connectivity?

Wireless connectivity on said devices is slower than it is on larger devices.

Why are smaller devices with Wi-Fi connectivity capabilities slower when compared to larger devices with the same connectivity capabilities?

Due to the limiting form factor, the antenna is going to be smaller.

What is the benefit of having a larger Wi-Fi antenna inside of a mobile device?

It can pick up signals with more strength and faster speeds.

Why does the location of a Wi-Fi antenna inside of a mobile device matter?

The closer the antenna is to the outside edge of the case, the better it’s going to be able to pick up signals.

How is Wi-Fi connectivity disabled on a mobile device like a phone?

Through the settings section or app on the device.

How is Wi-Fi connectivity disabled on a laptop?

Through the use of a physical switch or key on the keyboard to toggle the wireless card off and on.

What is sometimes necessary to do on a device when working in a high-security enviornment?

Turning off Wi-Fi connectivity making a wired connection the only way to establish a connection.

Cellular

Network that allows connection to the Internet using cellular radio inside the handset and connect to a network service provider.

How is a cellular hotspot connection achieved?

Through the use of USB tethering, Bluetooth connection, or doing Internet connection sharing over Wi-Fi.

What does GSM stand for?

Global System for Mobile Communications.

What does CDMA stand for?

Code Division Multiple Access.

What does SIM stand for?

Subscriber Identity Module.

How does a GSM phone achieve connectivity?

Through the use of a SIM card.

How does a CDMA phone achieve connectivity?

Through the use of electronic code inside the device.

What is the difference between a GSM phone over a CDMA phone?

The ability to use SIM card.

What is the limiting factor with the utilization of a CDMA phone?

It is going to be locked to a certain cellular provider and cannot travel with it overseas due to coverage limits.

Why is using a GSM phone preferred over using a CDMA phone?

It enables the modularity of being able to swap out a SIM card to switch providers if necessary.