Answer:
The command to create a compressed archive (archive1.tar.gz) is

Explanation:
The explanation for the above command is
The general command to create a compressed archive is
tar -czvf name-of-archive.tar.gz /path/to/directory-or-files
Here, the terms are as follows:
-c : Creates an archive
-z : Compress the archive with gzip.
-v : This is known as verbose. This is an optional command and it displays the progress on terminal command. Without this the progress is not displayed on terminal command.
-f : Allows to specify the file name of the archive.
Here, if we want to archive multiple files, we provide the command the names of multiple files or directories of the files also can be used.
So, the command 
creates a compressed archive - archive1.tar.gz of files test1, test2 and test3.
If you are working in a word-processing program and need to learn more about its features, the best place to get assistance is from the <span>application's Help menu. The help menu is usually located on the top right or left hand side corner of your window.</span>
Answer:
public class Main
{
public static void main(String[] args) {
RetailItem ob1 = new RetailItem("Jacket", 12, 59.95);
RetailItem ob2 = new RetailItem("Designer Jeans", 40, 34.95);
RetailItem ob3 = new RetailItem("Shirt", 20, 24.95);
}
}
class RetailItem {
private String itemDescription;
private int units;
private double price;
public RetailItem(String itemDescription, int units, double price) {
this.itemDescription = itemDescription;
this.units = units;
this.price = price;
}
}
Explanation:
Create a class called RetailItem that has three variables itemDescription, units, and price
Initialize a constructor that takes three parameters to set the values
Inside the main, create three objects with given data
Answer:
A) Caption
Explanation:
This option makes the most sense. It's not Word Art or Comment. An illustration is like a drawing, so that's incorrect as well, leaving only caption as the correct answer.
Hope it helps!
Answer:
Explanation:
A computer virus is a form of malicious software that piggybacks onto legitimate application code in order to spread and reproduce itself.
Like other types of malware, a virus is deployed by attackers to damage or take control of a computer. Its name comes from the method by which it infects its targets. A biological virus like HIV or the flu cannot reproduce on its own; it needs to hijack a cell to do that work for it, wreaking havoc on the infected organism in the process. Similarly, a computer virus isn't itself a standalone program. It's a code snippet that inserts itself into some other application. When that application runs, it executes the virus code, with results that range from the irritating to the disastrous.
Computer virus symptoms
How can you tell if a virus has slipped past your defenses? With some exceptions, like ransomware, viruses are not keen to alert you that they've compromised your computer. Just as a biological virus wants to keep its host alive so it can continue to use it as a vehicle to reproduce and spread, so too does a computer virus attempt to do its damage in the background while your computer still limps along. But there are ways to tell that you've been infected. Norton has a good list; symptoms include:
Unusually slow performance
Frequent crashes
Unknown or unfamiliar programs that start up when you turn on your computer
Mass emails being sent from your email account
Changes to your homepage or passwords