M5 Cellular networking Flashcards
What is another term for mobile networking?
Cellular networking
What type of networking has a lot in common with the 802.11 networks?
Cellular, at a high level.
How does cellular networking operate?
radio waves.
What kind of networking can travel over many kilometres or miles?
cellular
what concept are cellular networks built around
cells
what put cells apart from each other?
each cell is assigned a specific frequency band for use and those bands don’t overlap
what can cell towers that broadcast and receive cellular transmissions be thought of as, but with larger range?
access points
what are examples of cellular networking devices?
phones, tablets, laptops, automobiles
What wireless networks might a mobile device use
cellular, wifi, Bluetooth, one of the internet of things protocols
what’s the way I can troubleshooting networking or connectivity issues for end users?
figure out what network the device should be connecting to and make sure the device is configured to do that
what is a common device feature that can be confusing for end users?
turning individual components and systems on and off
why do some people switch off of network radios?
to save battery
what’s the first thing I should check when someone is having connectivity issues with a mobile device?
whether the wireless radio has been disabled in the device settings.
what mode disables all wireless networking at once
airplane
how will mobile devices try to connect to the internet automatically most of the time?
the most reliable and least expensive connection option
what do many mobile operating systems understand to save end users money?
metered connections, data limits, non metered connections like wifi.
what can an employer do if they want to access internet websites that the wifi blocks?
connect to another network even if it’s more expensive
what do all wireless networking devices have/
antenna
what does radio signal do you the further it has to travel especially if it passes through or reflects off of things between two antennas
weaken
what factors can make a wireless signal more or less reliable?
distance, interference, the way the devices held are worn
what is the most common short range wireless network called
Bluetooth
what is it called when you connect a wireless peripheral to a mobile device?
pairing
What happens when two devices connect over Bluetooth?
they exchange information including a pain or passwords they can remember each other. after that they will automatically connect to each other when they are powered on and in range
why might I need to make my device forget a peripheral so it can be paired again?
pairing fails sometimes.
what should I always do when troubleshooting a Bluetooth peripheral?
make sure Bluetooth is on
