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melisa1 [442]
3 years ago
9

Describe the basic features of the relational data model and discuss their importance to the end user and the designer. Describe

the Big Data phenomenon.
Computers and Technology
1 answer:
Mandarinka [93]3 years ago
6 0

Answer:

The answer to this question can be described as follows:

Explanation:

Relational data model:

The use of data tables to organize sets of entities into relationships requires a relational data model. this model work on the assumption, which is a primary key or code, that is included in each table configuration. The symbol for "relational" data links and information is used by other tables.

Model Design:

This model is used for database management, it consists of structure and language consistency. It is design in 1969.

Importance of data model:  

This provides a common standard for processing the potentially sound data in machines, that was usable on almost any one device.  

Big Data:

It moves to locate new and innovative ways to handle large volumes of authentication tokens and to gather business insights when offering high efficiency and usability at an affordable cost at the same time.

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-Define three types of user mode to kernel mode transfers?
Ivahew [28]

Answer:

 The three types of user mode to the kernel mode transferred occurred due to the:

  • It is mainly occurred due to the interrupt when, it send to the central processing unit (CPU).
  • It also occurs due to the hardware exception and when the memory is access illegally as it is divided by the zero.
  • It is mainly implemented or executed by the trap instruction as the system are basically executed by the program.
7 0
3 years ago
JAVA
butalik [34]

Answer:

import java.util.*;

public class MyClass {

   public static void main(String args[]) {

       Scanner input = new Scanner(System.in);

       System.out.print("Input a word: ");

       String userinput = input.nextLine();

       for(int i =0;i<userinput.length();i+=2) {

           System.out.print(userinput.charAt(i));

       }

   }

}

Explanation:

This line prompts user for input

       System.out.print("Input a word: ");

This declares a string variable named userinput and also gets input from the user

       String userinput = input.nextLine();

The following iterates through every other character of userinput from the first using iteration variable i and i is incremented by 2

       for(int i =0;i<userinput.length();i+=2) {

This prints characters at i-th position

           System.out.print(userinput.charAt(i));

5 0
3 years ago
B. Does “refactoring” mean that you modify the entire design iteratively? If not, what does it mean?
Liono4ka [1.6K]

Explanation:

Refactoring consists of improving the internal structure of an existing program's source code, while preserving its external behavior. 

6 0
3 years ago
Who likes video games
polet [3.4K]
I wish i could play but my strict mom would never let me :’(
3 0
3 years ago
Based on three scores that the user inputs, display the average of the score and the letter grade that is assigned fort he test
Korolek [52]

I used python function to write the code.

def averageScore(x,y,z):

    s = x + y + z

    avg = s/3

   if avg >= 90:

              return f'Your average test score is {avg} You earned a A.'

    elif avg >=80 and avg < 90 :

                return f'Your average test score is {avg} You earned a B.'

   elif avg >=70 and avg < 80 :

                 return f'Your average test score is {avg} You earned a .C'

      elif avg >=60 and avg < 70 :

                  return f'Your average test score is {avg} You earned a D.'

      else:

                    return f'Your average test score is {avg} You earned a F.'

print(averageScore(98, 90, 80))

Python function is used to write the code where x, y and z are the argument (user inputs) of the function. Then the inputs are summed and the average is gotten and stored with the variable, avg.  

If the average is greater than or equal to 90 the program will give the appropriate score and response(grade). It does the same if the user scored 80 - 89, 70 - 79, 60 - 69 and less than 60.

Finally. the function is called with the user input(argument).

Note the bolded values in the code are keywords in python.

read more: brainly.com/question/14191443?referrer=searchResults

5 0
2 years ago
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