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Klio2033 [76]
3 years ago
11

Six causes of data lost

Computers and Technology
1 answer:
Serhud [2]3 years ago
6 0
Hard drive failures

Accidental deletions

Computer viruses and malware infections



Power failures
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Which of the following is not a command for determining if MySQL is running on Linux (Ubuntu)?
laila [671]

Answer:

(c) sudo check status mysql

Explanation:

The commands service<em>, </em>ps<em> </em>and<em> </em>systemctl<em>, </em>are different ways to find out <em>if MySQL is running on Linux (Ubuntu), </em>but there is not such a command called <em>check</em> to do so in Linux.

Different programs in Linux operating system are organized in <em>processes</em>, and they are all created for a specific purpose: running an application, starting a web browser, and so on.

Some other programs like the <em>init program</em> start and stop essential service processes and there are currently two major implementations in Linux distributions:

  • <em>System V init</em> (traditional implementation)
  • <em>systemd</em> (emerging standard for <em>init</em>).

The commands service and systemctl are related to <em>System V init</em> and <em>systemd</em>, respectively, and can list the status of a program.

Thus, the command service can list if MySQL is running on Linux using the piece of code in the question: <em>sudo service mysql status</em>.

Likewise, the command systemctl can activate and deactivate services, and, among many other functionalities, list the status of a program (like the one in the question: <em>systemctl status mysql</em>).

The command ps (process status) "displays information about a selection of the active processes" [<em>ps</em> man page]. The command has many options, and some are -e (select all processes) and -f (full-format listing). In this case, the command output is <em>piped </em>to grep (global regular expression print) command to find those processes mainly related to 'mysql'.

It is important to remember that command <em>sudo</em> (superuser do) permits a user to "execute a command as the superuser or another user" [<em>sudo</em> man page], since commands <em>service</em> and <em>systemctl</em> require privileges to be run, for security reasons.

6 0
3 years ago
Create a PHP page that contains an array of at least 20 movie titles or book titles (your choice). The HTML page should have an
ella [17]

Answer:

This is the code

Explanation:

<html>

<form method="POST" action="welcome.php">

label for="usname">username:</label><br>

<input type="text" id="usname" name="usname"><br>

<label for="movietitles">Movietitles</label><br>

<textarea type="text" id="movetitle" name="movietitles">Please enter movie titles</textarea>

<input type="submit">

</form>

</html>

<?php

$Movietitles= array("bland", "decoy","Mademan", "Rich", "bland", "decoy","Mademan", "Rich", "bland", "decoy","Mademan", "Rich" , "bland", "decoy","Mademan", "Rich, "decoy","Mademan", "Rich", "Adapt" );

$username= $_POST['username'];

if (!empty($_POST['username'])) {

$username = $_POST['username'];

echo "Welcome";

}

?>

The post method HTTP request is used to send the data from the form to the Welcome.php file above so that it validates/tests that username has been entered using the php if statement and if it is not empty(entered username) php "echos" welcome to the screen.

5 0
3 years ago
All of the following are helpful test taking strategies EXCEPT_______________.
guajiro [1.7K]
Complete The test as quickly as possible
6 0
2 years ago
Read 2 more answers
Identifying what you will need to review takes place during?
marishachu [46]
It takes places during surveying.

For example, let's say you want to review your own produced game application software, and found out whether it satisfy your consumer or not

Before you conduct the survey, you have to identify what aspect you want to find out from your consumers , such as : Does it have any bug ? Is it challenging enough ? is the graphic good enough ? etc
7 0
3 years ago
Read 2 more answers
Computer that process digital as well as analogue signals​
Nuetrik [128]

Answer:

The answer is hybrid computer coz it is the combination of both analog and digital computers

Explanation:

hope it helps

good day

5 0
3 years ago
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