A student is curious about how a Web site appears on his computer screen. There is a communication between the client and the server in the Application Layer.
Explanation:
- When we choose to open a webpage (in any browser) the seventh layer of the OSI model - called Application layer will help to do that.
- What happens after we write the webpage address in address bar is that the Application layer protocol (also called HTTP) formats and sends the request from the client's browser (Internet Explorer, Mozilla Firefox , Opera, Safari etc.) to the server.
- It also formats and sends the server's respond back to client's browser. This process happens very fast and all the OSI model layers are processing in it (not only the Application layer).
- All the layers are working together and each of them is responsible for some particular job, but all together they work as one. The layers communicate with each other and in case of error they will retry and fix the error or if they are unable to do it, the responsible layer will inform the user about the source of the problem.
- What happens when page is requested and received? If we will remove the graphical and visual image and look at the process that computer does. We will see a set of commands, mathematical algorithms, symbols, letters and not understandable codes and processes.
- When data is sent from "A" to "B", a transport layer is responsible to send and deliver it correctly and exactly the same, what was requested.
- If the request, processed by "A" (sender) is too long, the transport layer will divide it in segments (called segmentation process) to understand well and not make a mistake while sending the data to "B" (recipient). After this process data is travelling through the network to the "B" (recipient), if the sent data is segmented or divided, the transport layer is responsible for reassemble it again and "B" (recipient) receives its requested data (It can be web page or other data).
- If the transport layer will not do the segmentation process, then the next - network layer - will check the data and if the requested message is too long it will fragment it (called fragmentation process) and will provide the same as transport layer had to do.
- All the layers processes are connected to each other and work cooperatively.
Answer:
n := length(A)
repeat
swapped := false
for i := 1 to n-1 inclusive do
<em> /* if this pair is out of order */</em>
if A[i-1] > A[i] then
<em> /* swap them and remember something changed */</em>
swap(A[i-1], A[i])
swapped := true
end if ⇒
end for
until not swapped
end procedure
Explanation:
This is pseudocode
Answer:
The answer is below
Explanation:
The various stages in the information processing cycle in the correct order is as follows:
1. Input stage: this is when the data is sent into the computer through the hardware
2. Processing stage: this when the is being refined in the central processing unit of the computer
3. Storage stage: this is when the data is being saved or stored in the computer memory such as Hard drive or external storage such as Flash drive
4. Output stage: this is when the refined or processed data is produced to the user either through the monitor screen or printing
Something like the following. Also you need to give what language you are using. Anyways, you should be able to convert this to your language of choice.
<script type="text/javascript">
function checkGeneration() {
var gen = ["Baby Boomer ","Generation X","Xennials","Generation Y"];
var reversestr = "";
var getyear = window.prompt("Enter a 3 digit number: ");
if (parseInt(getyear) <= 1964) {
alert(gen[0]);
} else if(parseInt(getyear) <= 1979) {
alert(gen[1]);
} else if(parseInt(getyear) <= 1985) {
alert(gen[2]);
} else if(parseInt(getyear) <= 1995) {
alert(gen[3]);
}
}
checkGeneration();
</script>
Answer:
He can use following computer program to make the class room more interesting and effective:-
- 1. <u>Reference software</u> : This software help students to access the atlases and dictionaries.Teacher can include this software in research projects .
- 2. <u>Educational Games</u>: This types of software is very effective for younger children because it motivates them to learn.This software companies have combined gaming and education into one .
- 3. <u>Graphical software</u> : Student can use this software to create and changes images available on the internet itselfs .
