protocols Flashcards
What is ethernet?
A standard for networking technology
Why would you use ethernet?
It is reliable, error-free and fast
Disadvantages of ethernet
Requires lots of cables and hardware. Can be expensive
Benefits of Wi-Fi
Cheap
Easy to set up
Can handle lots of users
Convenient as it is wireless
Disadvantages of Wi-Fi
Network speeds slower than wired networks
Relies on signal strength to WAP
Less secure than a wired connection
Define MAC address
A unique identifier for networks
When is MAC address used?
For communication on the same network
How is a MAC address shown?
As 6 bytes written in Hex
Define IP address
An identifier for communication between different networks
How is an IP address shown?
As 4 bytes written in denary
Why is encryption used?
So wireless networks can securely transmit data
How is data encrypted?
It is scrambled into ciphertext using a master key created from network’s SSID and password
What is a protocol?
A set of rules for how computers should communicate?
What is network protocol?
It defines rules and standards for data transmission
What protocol sends data between different networks?
TCP/IP
