Answer: Strong 128-bit encryption.
Explanation: An individual character corresponds to 8 bits . So if there are 16 characters then,
16
8=128 bits keys
This makes the 128 bit key encryption the strongest amongst all other options.It is strongest because it is almost impossible to decode the 128-character key by any method e.g.-brute-force method.
Other options are incorrect because the characters given by the other bits are as follows: 
=32 characters
=64 characters
=128 characters
Thus, the strongest character key is of 128 bits. for cipher.
I don't think some will write the whole program here, but which part are you having trouble with?
public class 4by4Square
{
public static void main(){
System.out.println("xxxx \nx x\nx x\nxxxx");
}
}
<h2><u>~CaptnCoderYankee</u></h2>
Answer:
The boot loader is pulled into memory and started. The boot loader's job is to start the real operating system. POST (Power On Self Test) The Power On Self Test happens each time you turn your computer on. ... Your computer does so much when its turned on this isn't all that occurs but is a summirazed version of what happens
Answer:
C) OpenID Connect
Explanation:
The best option is OpenID Connect because is based in OAuth, and supports multiple web based and mobile clients, and supports REST.
With OAuth, we cannot make any user authentication just provide a token to access data.
RADIUS is a networking protocol, and Shibboleth is a single sign-on log-in system for computer networks and the Internet, both not support REST.
