CompTIA A+ 220-1101 1.4 Cellular Standards

Cellular Network

A system where mobile communication is divided into geographic areas called 'cells', each with antennas to maintain connections.

GSM

Global System for Mobile Communications, a standard for mobile communications that provides coverage worldwide.

CDMA

Code Division Multiple Access, a cellular technology that allows multiple calls to be transmitted over the same frequency by assigning unique codes.

3G

Third generation mobile technology that significantly increased data transmission capabilities and speeds.

LTE

Long Term Evolution, a standard for wireless broadband communication that provides increased data speeds and capability.

LTE Advanced

An improved version of LTE that offers doubled throughput capabilities of up to 300 megabits per second.

5G

Fifth generation cellular networking technology, promising enhanced data speeds up to 10 gigabits per second.

IoT (Internet of Things)

A network of devices that can communicate and share data with each other over the internet.

PRL Update

Preferred Roaming List update that allows a mobile phone to recognize and connect to appropriate network towers.

WiFi Hotspot

A feature that allows a mobile phone to share its cellular data connection with other devices using a wireless network.

VoLTE

Voice over LTE, a technology that allows voice calls to be made over LTE networks, offering enhanced call quality and faster connection times.

Mobile Data

Data services provided by mobile networks for internet access on mobile devices, typically charged based on usage.

SIM Card

Subscriber Identity Module card, a small card inserted into mobile phones that contains user information and network credentials.

Roaming

The ability to use a mobile phone to access networks when outside the home network coverage area, usually with additional fees.

Bandwidth

The maximum rate of data transfer across a network, measured in bits per second.

Network Latency

The time taken for a data packet to travel from the source to the destination, influencing the responsiveness of the network.

Hotspot

A physical location where people can access the internet wirelessly, usually via WiFi.

Firewall

A security system that monitors and controls incoming and outgoing network traffic based on predetermined security rules.

VPN

Virtual Private Network, a service that encrypts internet traffic and masks a user's online identity.

Cell Tower

A structure that holds antennas and equipment for communication with mobile phones and devices, pivotal for network coverage.