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gizmo_the_mogwai [7]
3 years ago
15

A data dictionary is sometimes described as "the database designer's database" because it records the design decisions about tab

les and their structures.
True or false?
Computers and Technology
1 answer:
MrRa [10]3 years ago
4 0

Answer:

True is the correct answer for the above questions.

Explanation:

  • A data dictionary is used to hold the structure and definition of the database. It is because it is used to hold information about the database or operational database.
  • It is a set of schema through which the user can understand the structure of the database. It can be used to define the metadata also. The metadata detailed the data of a database.
  • The above question-statement also wants to states about the same which is described above which is the definition of the data dictionary. Hence it is a true statement.
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Write a recursive method named binarySearch that accepts a sorted array of integers and an integer target value and uses a recur
djyliett [7]

Answer:

10

-1

Process finished with exit code 0

Explanation: see code bellow

public class BinarySearchRecursive {

   public static int binarySearch(int[] a, int key) {

       return binarySearchRecursiveHelper(a, key, 0, a.length - 1);

   }

   public static int binarySearchRecursiveHelper(int[] arr, int target, int start, int end) {

       if (start > end) {

           return -1;

       }

       int mid = (start + end) / 2;

       if (arr[mid] == target) {

           return mid;

       } else if (target < arr[mid]) {

           return binarySearchRecursiveHelper(arr, target, start, mid - 1);

       } else {

           return binarySearchRecursiveHelper(arr, target, mid + 1, end);

       }

   }

   public static void main(String[] args) {

       int[] a = {-4, 2, 7, 10, 15, 20, 22, 25, 30, 36, 42, 50, 56, 68, 85, 92, 103};

       int index = binarySearch(a, 42);   // 10

       System.out.println(index);

       index = binarySearch(a, 66);   // -1

       System.out.println(index);

   }

}

6 0
2 years ago
One of the first and main steps in protecting your email is to have a __________ filtering system.
Alexxx [7]

<em>Answer:</em>

<em>One of the first and main steps in protecting your email is to have a </em><em><u>URL</u></em><em> filtering system.</em>

3 0
2 years ago
Please list the computer data hierarchy from bit to database
vladimir2022 [97]

Answer:

 Data hierarchy is basically define to the data which is organized in the systematic manner. The main concept of the data hierarchy is to check the basic structure of the data. It basically involve the fields records and files for the data organization.

The following is the list of the computer data hierarchy from nit to address are:

1) Bit: It is the smallest unit of the data.

2) Field: The collection of all the characters in the data is known as field.

3) Record: The collection of the different fields is known as records.

4) File: The collection of various types of records in the database is known as file.

8 0
3 years ago
What is blockchain? How it works? I heard bitcoin uses it.
igor_vitrenko [27]
Https://www.toptal.com/bitcoin/blockchain-technology-powering-bitcoin
i dont have the time to read it right now, but i was able to find you this link that should hopefully help- you out!
6 0
3 years ago
What web 2.0 features allows users to subscribe to a data plan that charges for the amount of time spent on the internet?
galina1969 [7]

Answer:

The answer to this question is given in the explanation section. The correct option is long tail

Explanation:

a.Folksonomy

Folksonomy is a way of organizing data and digital content. With Web 2.0, users can collaboratively manage and tag photos, journals and other media. As more users do this, creates a system of classification for the media and information.  so this option is not correct

b. long tail (correct option)

Some sites are able to offer services as well in which users can subscribe monthly or pay a fee every so often. An example of this would be Netflix.

c.user participation

All users have the free will to contribute to the site which makes many Web 2.0 pages public. With sites such as Wikipedia, anyone is open to the editing of articles. Information is provided two-way instead of solely from the site owner.

d.application

Web 2.0 applications that allow anyone to create and share online information or material they have created. As you know that there are number of different types of web 2.0 applications including wikis, blogs, social networking, folksonomies, podcasting & content hosting services.

3 0
3 years ago
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