P4
Why are data elements important and what is data elements.
Data elements come in two different types.
!) Element data elements – Of data type and length from defined by the built in values of data.
2) Reference data elements – Mostly used in other ABRAP objects where you can make use of reference variables.
Modified by using a process which is called SE11 where data element is a data dictionary which can be created as well.
To find the characteristics of a table field or a component or a structure where the purpose of data elements are designed to do this.
The functions take place over networks just like protocols where data element is a term where a process of this happens.
Frames and Packets
The networks change the amount of data that can be transferred across which is called switching as to avoid delay during the process o0f transmitting data to another network. Sent in is called packets where the amount of units that the data is done in this way.
Data elements come in two different types.
!) Element data elements – Of data type and length from defined by the built in values of data.
2) Reference data elements – Mostly used in other ABRAP objects where you can make use of reference variables.
Modified by using a process which is called SE11 where data element is a data dictionary which can be created as well.
To find the characteristics of a table field or a component or a structure where the purpose of data elements are designed to do this.
The functions take place over networks just like protocols where data element is a term where a process of this happens.
Frames and Packets
The networks change the amount of data that can be transferred across which is called switching as to avoid delay during the process o0f transmitting data to another network. Sent in is called packets where the amount of units that the data is done in this way.
Datagrams
You are not always guaranteed that your data will get to its destination as a whole when you first sent it when datagrams aren’t very reliable because they work by themselves. They decide whether the data reaches its destination where this is where higher protocols come into play. It will still be okay if a few are lost on the way where people who stream a lot such as, video, audio, voice use datagrams for this reason. Sequence Referred to as a string where sequence numbers are numbers that are in a certain order. Error correction and identification are sorted out by the numbers. The MAC and IP Addresses are used on a Ethernet based LAN where this image below shows how this happens. To build a frame and how they apply to the OSI layer where the LAN also displays the Encapsulation which is used to do this. |
Addresses
By the router an address is given to a computer. Receiving data from the computer it knows which computer to send it too through the IP address where the router gives out the IP address so that when the networks are sending data. For the networks to communicate to each other where this makes it a lot easier. |