- When using a WiFi network to talk to the Internet, where does your computer send its packets?
A gateway
A satellite
A cell phone tower
The Internet Central Office
- How is the link/physical address for a network device assigned?
By the cell tower
By the Internet Assignment Numbers Authority (IANA)
By the manufacturer of the link equipment
By the government
- Which of these is a link address?
0f:2a:b3:1f:b3:1a
192.168.3.14
www.khanacademy.com
@drchuck
- How does your computer find the gateway on a WiFi network?
It has a gateway address installed by the manufacturer
It broadcasts a request for the address of the gateway
It repeatedly sends a message to all possible gateway addresses until it finds one that works
The user must enter the gateway address by hand
- When your computer wants to send data across WiFi, what is the first thing it must do?
Listen to see if other computers are sending data
Just start sending the data
Send a message to the gateway asking for permission to transmit
Wait until informed that it is your turn to transmit
- What does a WiFi-connected workstation do when it tries to send data and senses a collision has happened?
Keep sending the message so part of the message makes it through
Wait until told by the gateway that the collision is over
Immediately restart transmitting the message at the beginning
Stop transmitting and wait a random amount of time before restarting
- When a station wants to send data across a "token"-style network, what is the first thing it must do?
Listen to see if other computers are sending data
Just start sending the data
Send a message to the gateway asking for permission to transmit
Wait until informed that it is your turn to transmit