Answer:
MAC Addresses (Destination and Source MAC address)
Explanation:
A switch has 3 primary functions:
- Forward frames
- Learn addresses
- Avoid loops
An Ethernet frame has the header, data and trailer and there are two specific fields in the header that helps the switch to know where to send data in future transmissions.
- destination MAC address
- source MAC address
every Ethernet frame has this and when the frame hits a switch or any device, any device can look at it ( an Ethernet frame ) and know where it is suppose to go and where it came from.
Every switch has a MAC address table where it stores MAC addresses of different computers on the network.
Example:
When a PC1 sends a frame to PC2 through a switch, the switch looks at the header of the Ethernet frame for the source mac address and adds the source MAC address to its MAC address table and also the port that it came through.
simply put:
A switch looks at the source MAC address to see if it knows it already, if it does. Great! no need to add it again to it's address table.
If it doesn't, it adds it's source address and the port that the frame came from.
This basically how the switch populates its MAC address table.
Answer:
They are only generated by Wireshark.
Based on the given spreadsheet, the database function that needs to be entered into cell I6 to find the average salary of all full-time employees is =AVERAGEIFS(D5:D34,B5:B34,"FT",C5:C34,">=1")
<h3>What does the AverageIfs formula find?</h3>
You can use the AverageIfs formula to find the average of a specific group of numbers from a spreadsheet based on the shared categories that these numbers fall under.
After typing in the =AverageIfs function, you then input the range from which the category will be specified. In this case that is D5:D34. The next entry would be the range the category is picked from which is B5:B34. The function will be FT for Full time workers.
Then use C5:C34 to find out the number of dependents that are equal to or greater than 1.
The digit returned is the average salary of all full-time employees.
Find out more on the AverageIf function at brainly.com/question/13661607
#SPJ1
Answer:
a) 0.843 years
b) 1.785 years
Explanation:
See attached pictures for detailed explanation.
