Ini beberapa jawaban saya yang nilainya 10. Tlg lengkapin lwt comment. thx
1.Lan stands for local area network which is a network set locally this network usually used RJ45 cable as its media or wireless with its access point managing it. When RJ45 cable is used hub or switch is the connector of those hosts. WAN stands for wide area network. it is more wide than local area. local area is usually network in a building or a room, however wan would cover geographical area such as city, region or continent. there is no specific media for this network. all media including signal wave from satellite is used. internet is the largest computer network. it covers hosts throughout the world. each computer which is connected with the internet is also connected with others which also have internet connection. internet has servers to be accessed and clients who access servers to get information.
4.
6. reliable means every broken/ lost data will be resent by the source. the clients will check if the data is completed. if it’s not, it will request to resend lost data again. data must be collected completely and error free. connection means those two device sent acknowledgement to each other. it will sate their connection state whether they’re connected to each other or not.
7.
header trailer start address type data data fcs end trailer 8bytes 6bytesx2 2 bytes
header
start header : 10101010 7x
10101011 1xaddress : source address:48bits=12 hexadecimals(mac address)
target address:48bits=12 hexadecimals(mac address)
type data : 2 bytestrailer
fcs is used for error checking such as question number 4
end trailer to indicate end of frame8.C class public ip
prefix:24
first octet started by 110x xxxx
which make possible networks from
1100 0000 to 1101 111
192.x.x.x to 223.x.x.x
approximately 2 millions possible network could be assembledhowever 192.168.x.x/24 is used as private IP
each network in this class can be filled with 254 usable IP it is 254 derived from 256-networkIP(1)-broadcastIP(1)=254
2:
BalasHapus-Bandwith is a limit for one internet connectivity, for example, if someone try to download a file with size of 100MB and have internet bandwith of 256kb, that person can only download the file with a maximum speed of 128kb/s
-Data Rate is a data transfer rate for internet connectivity, for example if someone want to upload a file, and got an upload rate of 5kb/s, that 5kb/s is the data rate for upload. and the data rate can change every second depend on the connection.
-The relationship between bandwith and data rate : data rate is limited by the bandwith. if someone only got a bandwith of 128kb, the maximum transfer rate every second is limited to 128kb/s, and cannot surpass the bandwith limit.
3:
BalasHapus---------------
--Application--
---------------
---Transport---
----Network----
---Data Link---
-The application layer is for the user-interfaces. the layer that interacts with the end-user that uses the application. the application layer is used as the interaction and for the commands and interfaces before the data move to the next layer.
-The Transport Layer gives header to the data that will be send over the network. for example, give the estimated data size, and start split the data into smaller data.
-The network layer adds source and destination IP to the header, and it also give the error checking label to the header.
The data link layer is for converting the data that has given header, convert it into a bits and into the signal, then send it over the media (cable/wireless/etc)