Using a wireless technology known as Near-field communication (NFC), once activated on the smartphone, allows payments or purchases to be made at select stores.
<h3>What is Near-field communication (NFC)?</h3>
NFC is a set of short-range wireless technologies that typically require a distance of 4 cm or less to initiate a connection.
<h3>Characteristics of Near-field communication (NFC)</h3>
- For it to work, it is necessary to place two spiral-type antennas within these close electromagnetic fields.
- This technology is built on radio frequency identification, which allows a gadget to send radio waves to another gadget or another tag and trigger a certain action.
- The NFC acts on the smartphones just like the RFID chips of the bank cards with which you can make payments or purchases.
Therefore, we can conclude that the NFC allows two devices to exchange data when in close proximity to each other.
Learn more about Near-field communication (NFC) here: brainly.com/question/3942098
Answer:
Explanation:
D. from cellular traffic that a hardware firewall prevents :)
Answer:
Option D
Explanation:
the To Box: This box contains the email id of the receiver to whom we send the mail.
the Subject Box: This box contains the subject of the email.
the Body Box: This box contains the content of the email.
the Out Box: This is a folder section that contains the messages that are not sent due to some network issues.
Hence ,
option a , b, c are the part of email message form whereas option d is not a part of email message form.
Answer:
Following are the expression in the Java language
public class Main
{
public static void main(String[] args) // Main method
{
boolean young= true; // variable declaration
boolean famous= true;// variable declaration
if(young && famous) // check the condition
System.out.println("You must be rich " );// display message
}
}
Output:
You must be rich
Explanation:
Following are the description of the above statement
- Declared a variable "young " of the boolean type that is initialized with the "true" value.
- Declared a variable "famous " of the boolean type that is initialized with the "true" value.
- Check the condition of if() block.If the condition is true then it executed the condition inside the if block.
- Finally ,print the message "You must be rich!"