Answer: D)The pattern of blood vessels at the back of the eye.
Explanation: The retinal scan is the techniques which is used in the bio-metric mechanism.The scanning of the retina's blood vessel pattern is capture by the scanner is the unique technique which is used for bio-metric purpose.
Blood vessel pattern is capture because it is present in unique form for every person and will help in distinguishing a person from another person while scanning.
Other options are incorrect because light reflection or reaching near retina and light pattern are not the unique way for identification while scanning a person.Thus the correct option is option(D).
Answer:
By order of increasing magnitude:
D. Make sure the USB device is plugged in properly.
A. Try a different USB cable.
B. Replace the USB device.
C. Install a new USB controller card.
Explanation:
Start with whatever is simplest first. Most errors are simply ID-10-T mistakes.
As for this problem of true or false, the most probable answer the most likely one to be the correct answer would be A. True.
In Microsoft Word, or commonly referred to as MS Word, or simply Word itself as what is utilized in the problem, the program has the ability to recognize in spelling and grammar. When a red wavy underline is present, the word or words above it are usually wrong in spelling. Though this can be corrected by the user by adding the word in the dictionary so as not to be corrected in the future. The green one would be more about grammar. The blue wavy underline would indicate a word spelled correctly, but might be misused in the sentence it belongs. This usually happens to words that are almost identical in spelling like too and to.
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.
