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kakasveta [241]
3 years ago
6

You are instructing a user on how to properly use a new laptop. He asks about the special function keys that are used to perform

tasks such as toggling the display or adjusting the display brightness. Which key should the user strike in combination with the special function keys
Computers and Technology
1 answer:
ruslelena [56]3 years ago
6 0

Answer:

The Fn key.

Explanation:

In this scenario, you are instructing a user on how to properly use a new laptop. He asks about the special function keys that are used to perform tasks such as toggling the display or adjusting the display brightness.

The user should strike the "Fn" key in combination with the special function keys.

In Computer science, the special function keys found on the top row of a keyboard are the F1, F2, F3, F4, F5, F6, F7, F8, F9, F10, F11, and F12 keys. Each of the special function keys just like their name suggests are used to perform different tasks respectively as defined by the operating system of a computer.

Fn is an acronym for function. In order to use the special function keys, a user must first hold down the Fn key before pressing the specific special function key which then triggers functions configured to use this key.

<em>For instance, </em><em>"Fn+F2" </em><em>is to reduce brightness on the Windows operating system. Also, </em><em>"Fn+F12"</em><em> is to increase audio volume on the Mac operating system. </em>

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Answer:

import java.util.*;

public class Main {

public static void main(String[] args)

{

Scanner scan = new Scanner();

double budget=0, num=0, total=0;

System.out.println("Your budget for the month? ");

budget=scan.nextDouble();

System.out.println("enter all expense, and after that type -9999 to quit: ");

while(num != -9999)

{

total+=num;

num=scan.nextDouble();

}

if(total<=budget)

{

System.out.println("under budget by ");

System.out.println(budget-total);

}

else

{

System.out.println("over budget by ");

System.out.println(total-budget);

}

}

}

Explanation:

  • Take the budget as an input from user and store it to the budget variable.
  • Loop until user has entered all his expenses and keep on adding them to the total variable.
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7 0
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In which method of encryption is a single encryption key sent to the receiver so both sender and receiver share the same key?
mars1129 [50]

Answer:

B. Symmetric key encryption

Explanation:

Symmetric key encryption is one in which a single encryption key is sent to the receiver so both sender and receiver share the same key. In this type of encryption, the sender uses a particular key to encrypt the data and sends the encrypted data (cipher data) to the receiver and then the receiver uses the same key to decrypt the data.

Public key encryption, or asymmetric encryption uses two keys - a private key and a public key. The public key is know to everyone while the private key is known only to those for whom the message is intended. An application of this type of encryption is in SSL (Secure Sockets Layer) -  a protocol for transmitting data privately on the internet.

Private key encryption is not exactly one of the encryption methods but rather, a private key and a public key are used in encryption.

The best option is therefore <em>symmetric key encryption</em>.

<em>Hope this helps!</em>

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Using satellite communication the data could be send to the end user.

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