The road is closed a head

Nilsu is attempting to train a new administrative assistant on using a word processing program. Since the program is fairly comp

tatiyna

Answer:

teach the assistant bits and pieces of the program.

Explanation:

Given that the program is fairly complex and has many independent components, the most ideal way Nilsu should train a new administrative assistant on using a word processing program is by "teaching the assistant bits and pieces of the program."

This will make the administrative assistant understand and operate the program at a gradual pace without anhthing looking confusing.

5 0

3 years ago

Host A sends real time voice to Host B over a packet switched network. Host A first converts the analogue voice signal to a digi

DiKsa [7]

Answer:

Time required is 0.007 s

Explanation:

As per the question:

Analog signal to digital bit stream conversion by Host A =64 kbps

Byte packets obtained by Host A = 56 bytes

Rate of transmission = 2 Mbps

Propagation delay = 10 ms = 0.01 s

Now,

Considering the packets' first bit, as its transmission is only after the generation of all the bits in the packet.

Time taken to generate and convert all the bits into digital signal is given by;

t = $\frac{Total\ No.\ of\ packets}{A/D\ bit\ stream\ conversion}$

t = $\frac{56\times 8}{64\times 10^{3}}$ (Since, 1 byte = 8 bits)

t = 7 ms = 0.007 s

Time Required for transmission of the packet, t':

$t' = \frac{Total\ No.\ of\ packets}{Transmission\ rate}$

$t' = \frac{56\times 8}{2\times 10^{6}} = 2.24\times 10^{- 4} s$

5 0

3 years ago

To prevent replay attacks, authentication protocols create a number that will be used only once. The number is called a _____.

fgiga [73]

Authentication protocols are usually designed and configured to create a number that will be used only once, so as to prevent replay attacks in a computer network. Thus, this number is called a <u>nonce</u>.

Authentication work based on the principle of strategically matching an incoming request from an end user or electronic device to a set of uniquely defined credentials.

In an access control list (ACL), authentication and authorization is used to ensure an end user is truly who he or she claims to be, as well as confirming that an electronic device is valid through the process of verification.

In Cybersecurity, authentication protocols are usually designed and configured to create a nonce, which can be used only once, so as to prevent replay attacks in a computer network.

In conclusion, a nonce is used prevent replay attacks in a computer network because the number created by an authentication protocol can be used only once.

7 0

2 years ago

I need a 75 word Radio Ad on Why Technology should be kept in a schools budget.

babunello [35]

Answer:

You cant work without it

Explanation:

4 0

2 years ago

You need to implement a web application that is split in three parts, namely, Webpage, PHP and MySQL. Each of them will be used

Anastasy [175]

Answer:

Check the explanation

Explanation:

index.php

<!DOCTYPE html>

<html lang="en">

<head>

</head>

<body>

<h1>Login Portal</h1>

</form>

</div>

</section>

</body>

</html>

login.php

<?php

session_start();

$con=mysqli_connect("localhost","root","","storage");

if(!$con)

{

die("connection failed" .mysqli_connect_error());

}

$e=$_POST["email"];

$p=$_POST["pwd"];

$sql="select * from `account` where `email`='$e' and `password`='$p'";

$res=mysqli_query($con,$sql);

if(mysqli_num_rows($res)>0)

{

$_SESSION["email"]=$e;

include 'profile.php';

}

else {

echo "no such username";

include 'admin.php';

}

mysqli_close($con);

?>

admin_signup.php

<!DOCTYPE html>

<html lang="en">

<head>

</head>

<body>

<h1>Signup Portal</h1>

</form>

</div>

</section>

</body>

</html>

signup.php

<?php

session_start();

$con=mysqli_connect("localhost","root","","storage");

if(!$con)

{

die("connection failed" .mysqli_connect_error());

}

$u=$_POST["uname"];

$e=$_POST["email"];

$p=$_POST["pwd"];

$sql="INSERT INTO `account`(`email`, `username`, `password`) VALUES ('$e','$u','$p')";

mysqli_query($con,$sql);

mysqli_close($con);

include 'admin.php';

?>

upload file (profile.php)

<!DOCTYPE html>

<html lang="en">

<head>

</head>

<body>

<h1>Login Portal</h1>

</form>

<p > <a href="view.php">to view your content , click here</a></p>

</div>

</section>

</body>

</html>

content.php

<?php

session_start();

$con=mysqli_connect("localhost","root","","storage");

if(!$con)

{

die("connection failed" .mysqli_connect_error());

}

$handle = $_FILES['filename']['tmp_name'];

echo $handle;

$d=$_POST["docname"];

$e=$_SESSION["email"];

$c=file_get_contents($handle);

$sql="INSERT INTO `info`(`email`, `docname`, `content`) VALUES ('$e','$d','$c')";

mysqli_query($con,$sql);

mysqli_close($con);

include 'admin.php';

?>

to view content , view.php

<?php

session_start();

$con=mysqli_connect("localhost","root","","storage");

if(!$con)

{

die("connection failed" .mysqli_connect_error());

}

$e=$_SESSION["email"];

$sql="select * from `info` where `email`='$e' ";

$res=mysqli_query($con,$sql);

if(mysqli_num_rows($res)>0)

{

while($show=mysqli_fetch_assoc($res))

{

echo $show["docname"]."\n".$show["content"];

}

else {

echo "no content till now";

}

mysqli_close($con);

?>

6 0

3 years ago