Wireless Protocols
What is a wireless protocol?
A set of rules that allow devices to communicate without cables.
What is the range of Bluetooth?
About 30 feet (10 meters)?
Which devices connects multiple devices but sends data to all of them?
A hub
What is a Network Interface Card (NIC) used for?
To connect a device to a network
What device protects a network from unauthorized access?
Firewall
Name one benefit of using wireless protocols.
No need for physical cables; allows for mobility.
Which Wi-Fi band offers longer range but slower speed?
2.4 GHz
Which device sends data only to the intended recipient?
A switch
What is the difference between a wired and wireless NIC?
Wired uses cables; wireless uses Wi-Fi signals
Which protocol breaks data into packets?
TCP (Transmission Control Protocol)
What two main wireless protocols were discussed?
Bluetooth and Wi-Fi
Which Wi-Fi band is faster but has a shorter range?
5 GHz
What device connects two separate LANs?
A bridge
What does an Access Point do?
Connects wireless devices to a wired network
Which protocol ensures data packets reach the correct address?
IP (Internet Protocol)
Which protocol uses radio signals to connect to the internet?
Wi-Fi
What is the newest Wi-Fi frequency band and what's its advantage?
6 GHz (Wi-Fi 6E); faster and less interference
What device connects LAN to the internet?
A router
What is the purpose of a Repeater?
Amplifies signals to extend network range
What do TCP and IP work together to do?
Transmit and route data across networks
What is the main difference between wireless and wired protocols?
Wireless uses radio waves; wired uses cables
Name two differences between Bluetooth and Wi-Fi
Range, speed, and power consumption. (Bluetooth = short range, low power; Wi-Fi = long range, high power)
Which device converts data between LAN and internet formats?
A modem
What device provides centralized storage for file access?
Network Attached Storage (NAS)
In a real-world example, how do a router and modem work together?
Modem connects to the internet; router shares it with multiple devices