The answer to this question is firewall
        
             
        
        
        
Answer:
Image result for what is the name of the fields in an x.509 digital certificate that are used when the parties negotiate a secure connection?
Common applications of X. 509 certificates include SSL/TLS and HTTPS for authenticated and encrypted web browsing, signed and encrypted email via the S/MIME protocol, code signing, document signing, client authentication, and government-issued electronic ID.
Explanation:
 
        
             
        
        
        
Answer:
Sedimentary Rocks
Explanation:
Sedimentary rocks are essentially the Frankenstein monsters of the rock world. They're made up of pieces of igneous and metamorphic rocks, sand, clay, and other sedimentary rocks.
 
        
             
        
        
        
Answer:
 Update the unit firmware.
Explanation:
Updating unit firmware means update the information related to the network that is newly installed on the wireless router. The purpose of this change is to update the devices with new network alterations to work with efficiency and better security. As things are updating on daily basis, so the manufacturer makes the devices, reprogram able to meet the requirement of the future by updating the program in firmware unit. By updating device means this will be to fix the bugs that can be occur in modern era. This will make the device more secure.
 
        
             
        
        
        
Answer:
Explanation:
The Rectangle class was not provided in this question but after a quick online search I was able to find the class code. Due to this I was able to create a test code in the main Method of my program to create a Rectangle object and call it's display() method. The Test code and the output can be seen in the attached image below. While the code below is simply the Main Test Program as requested.
class Brainly {  
    public static void main(String[] args) {
        Rectangle rectangle = new Rectangle(20, 8);
        rectangle.display();
    }
}