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3 years ago

What protocol does a web browser normally use? at which osi layer does this protocol work?

1 answer:

Nookie1986 [14]3 years ago

6 0

The answer is HTTP and it works over the application layer. The hypertext transfer protocol or as called as HTTP is an application protocol for distributed, collaborative and hypermedia information systems in which this is the foundation of the data communication for the world wide web or as called as www.

You might be interested in

The motherboard

Ksju [112]

Answer:

a:(allows the different parts of a computer to communicate)

Explanation:

The motherboard is the main command center for the whole pc which recieves your inputs and responds by sending outputs...

3 0

3 years ago

You have created a Web page in HTML. When it fails W3C validation, you try changing the HTML standard to make your code more com

solniwko [45]

Answer:

<table>

Explanation:

W3C validation is a test applied to web pages codes, containing HTML, CSS and other important web frameworks, to make sure that they follow the right syntax and semantics prescribed by the W3C - World Wide Web Consortium.

When a web page, or simple an HTML document, passes this test then it shows that the set rules for creating web pages, that can be easily rendered across many browsers, have been well followed.

There are many reasons why the test may fail. Some of them are highlighted as follows;

i. Not specifying the Doctype at all. For an HTML document to pass the W3C validation test, it is important to specify the Doctype which tells the browser how to treat the document. If HTML is specified as Doctype, then the browser treats the document as HTML. If none is specified, the browser does not know and may have to guess how to treat the document.

ii. Missing closing tags. HTML is a markup language and the use of tags are very important. Many tags have opening and closing parts such as;

<p> </p>.

Some are self closing such as;

<br />

Now, opening a tag and not closing it will make the test fail.

iii. Not completing important child tags. Some tags have child tags that are very important. Child tags are put inside another tag called the parent tag. An example is the <table> tag which has a few child tags such as <tr>, <tbody> e.t.c

Now, when creating a table, according to the W3C specifications, one or more of the <tr> or <tbody> child tag should be inserted.

7 0

4 years ago

You are the network administrator for Corpnet.com. You install the Windows Server Backup Feature on a Windows Server 2012 R2 fil

Vsevolod [243]

To ensure that multiple backups of the server are available for restores you should Modify the frequency of the scheduled backup.

a. Modify the frequency of the scheduled backup.

<u>Explanation:</u>

To backup system normal and good practices schedule every day either different folder, which is further classified day of a week name. For example Sunday, Monday, Tuesday Wednesday, Thursday, Friday Saturday backup schedule will once a week.

Suppose Monday backup schedule run once a week at midnight of every Monday, same away Tuesday backup schedule run once a week at midnight of every Tuesday. If we schedule weekly one day folder end user will have 6 last days folder so that end user can restore the data any point of time.

7 0

3 years ago

A file that is embedded on the hard drive of a computer, often without a person's knowledge, that collects and stores informatio

Gnom [1K]

The correct answer would be Spyware

6 0

3 years ago

The is_positive function should return True if the number received is positive, otherwise it returns None. Can you fill in the g

poizon [28]

<h2>Question:</h2>

The is_positive function should return True if the number received is positive, otherwise it returns None. Can you fill in the gaps to make that happen?

<em>def is_positive(number):</em>

<em> return _____</em>

<em />

<h2>Answer:</h2>

def is_positive(number):

if (number > 0):

return True

else:

return "None"

---------------------------------------------------------------------------------

<h2><u>Code Test and Sample Output:</u></h2>

print(is_positive(6))

>> True

print(is_positive(-7))

>> None

----------------------------------------------------------------------------------

<h2><u>Explanation:</u></h2><h2><u></u></h2>

The code above has been written in Python.

Now, let's explain each of the lines of the code;

Line 1: defines a function called <em>is_positive </em>which takes in a parameter <em>number. </em>i.e

<em>def is_positive(number):</em>

<em />

Line 2: checks if the number, supplied as parameter to the function, is positive. A number is positive if it is greater than zero. i.e

<em>if (number > 0):</em>

<em />

Line 3: returns a boolean value <em>True </em> if the number is positive. i.e

<em>return True</em>

<em />

Line 4: defines the beginning of the <em>else</em> block that is executed if the number is not positive. i.e

Line 5: returns a string value "None" if the number is not positive. i.e

<em>return "None"</em>

<em />

All of these put together gives;

===============================

<em>def is_positive(number):</em>

<em> if (number > 0):</em>

<em> return True</em>

<em> return "None"</em>

An example test of the code has also been given where the function was been called with an argument value of 6 and -7. The results were True and None respectively. i.e