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Bad White [126]
3 years ago
14

Modern database tools support ________________, which entails separating data from the programs that manipulate data.

Computers and Technology
1 answer:
Bas_tet [7]3 years ago
8 0
The correct answer: Data independence

Data independence<span> is the type of </span>data<span> transparency that matters for a centralised DBMS. It refers to the immunity of user applications to changes made in the definition and organization of </span>data<span>. Physical </span>data independence<span> deals with hiding the details of the storage structure from user applications.
</span>
The logical<span> structure of the data is known as the 'schema definition'. In general, if a user application operates on a subset of the </span>attributes<span> of a </span>relation<span>, it should not be affected later when new attributes are added to the same relation. Logical data independence indicates that the conceptual schema can be changed without affecting the existing schemas.
</span>
<span>The physical structure of the data is referred to as "physical data description". Physical data independence deals with hiding the details of the storage structure from user applications. The application should not be involved with these issues since, conceptually, there is no difference in the operations carried out against the data.</span>
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Write a c program to print all possible marking schemes of 15 questions each with 3.
andrey2020 [161]

Answer:

#include <math.h>

#include <stdio.h>

#include <string.h>

#define BASE 3

#define NRQUESTIONS 15

void toABC(int n, char* buf, int base, int size) {

   memset(buf, 'A', size);

   buf[size] = 0;

   while (n && size) {

       buf[--size] = 'A' + (n % base);

       n /= base;

   }    

}

int main()

{

   char buf[16];

   for (int i = 0; i < pow(BASE, NRQUESTIONS); i++) {

       toABC(i, buf, BASE, NRQUESTIONS);

       printf("%s\n", buf);

   }

}

Explanation:

Assuming 3 is the number of possible answers to choose from for each question.

I tackled this by having an integer counter enumerate all values from 0 to 3^15, and then convert each integer to a base-3 representation, using ABC in stead of 012.

3 0
3 years ago
What savings account has the best rate of return on his interest
NeX [460]

Ally.com is a great savings account.

8 0
3 years ago
Anyone who do bug bounty hunting ?​
olchik [2.2K]

Answer:

No

Explanation:

I do not because it's working with skilled security researchers from all over the world is the key to identifying

5 0
2 years ago
A vending machine that serves coffee pours a varying
babunello [35]
Is that the whole question? or
8 0
3 years ago
Some designer suggest that speech recognition should be used in tale phone menu system. This will allow users to interact with t
Sergio [31]

Answer:

My two arguments against the proposal are based on physical side effects and background noise interference.

Explanation:

To start with physical side effects, the use of speech recognition technology might make users experience physical discomfort. This is due to the fact that users who interact with the system by speaking for a long period would experience dry mouth, temporary loss of voice, vocal problems and muscle fatigue. In addition, the fact that users would always speak in an unnatural way to make the system interpret commands effectively could lead to voice strain.  

Also, users need to be in a quiet environment before they can get the best out of speech recognition technology. This is because background noise can interfere with commands and create a mix-up which the system cannot interpret. In other words, when an environment is noisy, speech recognition technology would find it difficult to differentiate between users voice and background noise.

4 0
3 years ago
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