Which of the following statements is the least abstraction of the World Wide Web?

Suppose you were assigned to develop a logical model of the registration system at a school or college. Would you be better off

BaLLatris [955]

Answer:

top down approach

Explanation:

Top down approach is process of breaking down system into sub-system which helps in formulating the overall system. At the end every sub system can be refined with more details.

While bottom up approach is process of gathering systems to design large complex system.

Top down is better as basic information is present and resources can be utilized effectively without impacting maintennance and operations.

6 0

3 years ago

For each of the descriptions below, perform the following tasks:

zlopas [31]

Answer:

Explanation:

The underlined traits in the ER chart speak to essential key since they remarkably recognize the quality

(a)

(I) The level of the given relationship is 2 i.e it is a parallel connection among Book and Publisher. It is a one to numerous relationship from distributer to book in light of the fact that a distributer can distribute any number of books however a book will have only one publisher,so the cardinality will be 1 to 1..* (one to many)

(b)

(i) The degree of the given relationship is 2 i.e it is a binary relationship between Author and Book. It is a many to many relationship from Book to Author a book can be written by one or more authors and an author can write more than one book, so the cardinality will be 1..* to 1..* (many to many)

(c)

(i) As mentioned in part (b), the degree of given relation is 2 and cardinality is many to many (1..* to 1..*)

(d)

(i) The degree of the given relationship is 1 i.e unary relationship. It is a many to many relationship because one book can belong to any sets and a set can have any number of books, so cardinality is 1..* to 1..* (many to many)

Note: attached below is the image of various options to confirm the explanation (answer).

cheers i hope this helped !!!

4 0

4 years ago

A mule deer can run 1/4 mile in 25 seconds. Which of the following correctly shows this rate as miles per hour?

sashaice [31]

You would do 1/4 * 2.4, since 25 goes into 60 2.4 times so the answer would be 60 mph

8 1

3 years ago

Print person1's kids, call the incNumKids() method, and print again, outputting text as below. End each line with a newline.

Hatshy [7]

Answer:

Hi there! This is a good question to grasp the concepts of object-oriented classes, encapsulation and abstraction of classes and their properties in Java. Please find the details below.

Explanation:

You can implement the solution by calling the getNumKids() function of the personInfo object or directly using the personKid input from the user to display the initial number of kids for the user. Then, calling the incNumKids() increases the kids count. Finally, displaying the new number of kids is done by invoking the getNumKids() method of the PersonInfo object that returns the private property of numKids to the user. The user cannot access this property without the get and set methods.

CallPersonInfo.java =====

import java.util.Scanner;

public class CallPersonInfo {

public static void main (String [] args) {

Scanner scnr = new Scanner(System.in);

PersonInfo person1 = new PersonInfo();

int personsKid;

personsKid = scnr.nextInt();

person1.setNumKids(personsKid);

System.out.println("Kids: " + personKid); // or person1.getNumKids();

person1.incNumKids();

System.out.println("New baby, kids now: " + personInfoObject.getNumKids());

}

You can also write the code in the same file as PersonInfo.java as below.

import java.util.Scanner;

class PersonInfo {

private int numKids;

public void setNumKids(int setPersonsKids) {

numKids = setPersonsKids;

}

public void incNumKids() {

numKids = numKids + 1;

}

public int getNumKids() {

return numKids;

}

public static void main(String args[]) {

System.out.println("Enter number of kids: ");

Scanner scan = new Scanner(System.in);

int num_kids = scan.nextInt();

PersonInfo personInfoObject = new PersonInfo();

personInfoObject.setNumKids(num_kids);

System.out.println("Kids: " + num_kids);

personInfoObject.incNumKids();

System.out.println("New baby, kids now: " + personInfoObject.getNumKids());

}

5 0

3 years ago

Please help on both of these questions will give brainliest<br> !!

Alja [10]

I think the first one is All of the above

3 0

3 years ago

Read 2 more answers