The statement is true about biometrics as an authentication method in options b and c.
<h3>What is Biometrics?</h3>
Biometrics is the measurement worried in measuring behavior or physiological traits of the human being. It is used for verifying the identification of a specific man or woman. It is probably operated in modes, particularly authentication and enrollment.
The complete question is :
Which of the following are true in biometric systems?
- a. For authentication application, a user template is compared against a single template stored in the database.
- b. For verification/identification application, a user template is compared against all the templates stored in the database.
- c. Multimodal biometrics is used to improve accuracy.
- d. None of these.
In the first mode, the facts is used and proven to test who the man or woman is. The second mode is obtaining the man or woman's facts and storing it in a database. Usually, multi-version biometrics are used for enhancing popularity accuracy.
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<span>Use 8-bit resolution when recording human speech in an audio file.
</span><span>The </span>resolution<span> of </span>8 bits<span> can encode an analog input to one in 256 different levels. The reason why 256 levels is because 2^8</span><span> = 256.
</span>The analog to digital converter (ADC) <span> represents the analog input as a digital word.</span>
Answer:
Hi!
The answer in Javascript is:
function monthsWithMoreOfThree() {
var Rainfall_mi = '3,4,1,5,2,6,7,9'; <em>//Defined and declared</em>
var num_rainy_months = 0;
var values = Rainfall_mi.split(","); <em>//use split method for Strings. Array is returned</em>
for (var i = 0; i < values.length; i++) { <em>//for each value, compares with 3</em>
if(values[i] > 3) { <em>//In Javascript, you can compare an String value with an int. Can use parseInt(aString) to explicit parse but is not necessary</em>
num_rainy_months++; <em>//If value is greater than 3, adds 1 to num_rainy_months</em>
}
}
}
Answer:
SQL queries
The command used to display the customer ID and total number of orders placed is given below
Query:
SELECT CustomerID, COUNT (orderID) AS TotalOrders
FROM Order_Table
GROUP BY CustomerID
Explanation:
SQL queries
The command used to display the customer ID and total number of orders placed is given below
Query:
SELECT CustomerID, COUNT (orderID) AS TotalOrders
FROM Order_Table
GROUP BY CustomerID
SELECT - To query the database and get back the specified fields SQL uses the select statement
CustomerID is a coloumn name
The function COUNT(OrderID) returns the number of orders
Totalorderds is a label
FROM - To query the database and get back the preferred information by specifying the table name
Order_Table is a table name
GROUP BY - The clause is used to group the result of a SELECT statement done on a table where the tuple values are similar for more than one column
The table below displays the CustomerID and total number of orders placed
CustomerID Totalorders
4 28
1 6
12 5
16 5
6 3
9 3
15 3
3 1
13 1
14 1
The table below shows the total number of orders situated for each sales person
SalesPerson_ID TotalOrders
3 16
2 3
4 3
5 3
