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.
I believe it is D. The Central Processing Unit (CPU) can manage memory and storage. It also makes sure every program has what it needs to keep it up and running.
Answer:
The process of converting information, such as text, numbers, photos, or music, into digital data that can be manipulated by electronic devices is called Digitization
Explanation:
It is the process of converting “information in to a digital form”. Here the information are organized into bits. Mostly these data will be converted into the form of image. But these can be edited by converting once again into necessary format and even back to image too. There are specific tools which the user needs to install for editing the digital documents.
The reason why we need digitization is that
a) We want to convert hard copy into soft copy and store it in system.
b) We would like to edit the data in the hard copy and preserve as a fresh copy.
Answer:
"Programmer " is the correct answer for the following question.
Explanation:
A programmer is a person who created the software They are basically a coder who develop a code for the program or the software. They are specialists in some in the programming code area. The programmer are writing the program for a different kind of software.
The main objective programmer they convert the program design which is developed by a systems analyst or system designer using a different kind of computer language
