Answer:
The code will give an error that is "At least one public class is required in main file".
Explanation:
In the given code if we do not use the public access modifier to the class. It will give an error so, the correct code to this question as follows:
Program:
import java.util.HashSet; //import package
public class A //define class as public.
{
public static void main(String[ ] args) //define main method.
{
HashSet set = new HashSet(); //creating hashset object.
set.add("A"); //add alphabet in hashset
set.add("B"); //add alphabet in hashset
set.add("C"); //add alphabet in hashset
System.out.print("Size of HashSet is :"set.size()); //print the size of hashset.
}
}
Output:
Size of HashSet is : 3
Explanation of the program:
- In the above program, we define a public class that is "A" and inside the class, we define the main method.
- Inside the main method, we create a HashSet class object that is "set".
- To add elements in HashSet we use add() function that adds elements and in the last, we use the size() function that prints the size HashSet.
Answer:
D. Zero-day
Explanation:
It is clearly stated that the antivirus is still up-to-date on the workstation, and there has been no alterations to the firewall. Hence, this means the software is functional and up-to-date with all known viruses. This shows that this attack is unknown to the manufacturer of the antivirus software and hence no virus definition or patch fixing this problem has been developed yet. In this light, it is a zero-day.
A zero-day is a type of vulnerability in a software that is not yet known to the vendor or manufacturer, hence this security hole makes the software vulnerable to attackers or hacker before it is been fixed.
Answer:
False
Explanation:
Byte(B) is uppercase
bit(b) is lowercase
Good way to remember is that its takes 8 bits makes a byte. In other word, a byte is bigger than a bit so it makes sense that byte is uppercase.
Answer:
Computer is called versatile and diligent device because it is used in almost all the fields for various purposes and it can perform the task repeatedly without loosing its speed and accuracy for long time.
/etc/samba/smb.conf is the file you can edit on a linux system to configure shared folders using samba.
<h3>What is a L
inux system ?</h3>
- A Unix-like operating system (OS) for desktops, servers, mainframes, mobile devices, and embedded devices, Linux is open source and user-developed.
- One of the most broadly supported operating systems, it is supported on virtually all popular computing platforms, including x86, ARM, and SPARC.
- Windows OS is a for-profit operating system, whereas Linux is an open-source alternative. In contrast to Windows, which lacks access to the source code, Linux allows users to modify the code as needed.
- Applications, interfaces, programs, and software are all produced through Linux programming. Desktops, real-time apps, and embedded devices frequently employ Linux code.
- Programmers can learn about the Linux kernel for free online, enabling them to use, modify, and develop Linux without restriction.
Learn more about linux system refer to :
brainly.com/question/25480553
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