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3 years ago

What are examples of data duplication in flat files? Check all that apply.

2 answers:

8 0

Answer: a table with three records for student ID # 459100388 and a multiple-choice question with two identical answers. Otherwise options 2 and 3.

Explanation:

EDG2021

photoshop1234 [79]3 years ago

7 0

Answer:

Flat file databases are databases that are contained in one single table, or in the form ... -Data Redundancy, By having a relational database it ensures that no attributes ... There are only three different 'degrees' of relationship between two entities. ... Consider, for example, the link between customers, orders and products.).

Explanation:

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Write a C program that reads two hexadecimal values from the keyboard and then stores the two values into two variables of type

sattari [20]

Solution :

#include $$$$

//Converts $\text{hex string}$ to binary string.

$\text{char}$ * hexadecimal $\text{To}$ Binary(char* hexdec)

{

long $\text{int i}$ = 0;

char *string = $(\text{char}^ *) \ \text{malloc}$ (sizeof(char) * 9);

while (hexdec[i]) {

//Simply assign binary string for each hex char.

switch (hexdec[i]) {

$\text{case '0'}:$

strcat(string, "0000");

break;

$\text{case '1'}:$

strcat(string, "0001");

break;

$\text{case '2'}:$

strcat(string, "0010");

break;

$\text{case '3'}:$

strcat(string, "0011");

break;

$\text{case '4'}:$

strcat(string, "0100");

break;

$\text{case '5'}:$

strcat(string, "0101");

break;

$\text{case '6'}:$

strcat(string, "0110");

break;

$\text{case '7'}:$

strcat(string, "0111");

break;

$\text{case '8'}:$

strcat(string, "1000");

break;

$\text{case '9'}:$

strcat(string, "1001");

break;

case 'A':

case 'a':

strcat(string, "1010");

break;

case 'B':

case 'b':

strcat(string, "1011");

break;

case 'C':

case 'c':

strcat(string, "1100");

break;

case 'D':

case 'd':

strcat(string, "1101");

break;

case 'E':

case 'e':

strcat(string, "1110");

break;

case 'F':

case 'f':

strcat(string, "1111");

break;

default:

printf("\nInvalid hexadecimal digit %c",

hexdec[i]);

string="-1" ;

}

i++;

}

return string;

}

int main()

{ //Take 2 strings

char *str1 =hexadecimalToBinary("FA") ;

char *str2 =hexadecimalToBinary("12") ;

//Input 2 numbers p and n.

int p,n;

scanf("%d",&p);

scanf("%d",&n);

//keep j as length of str2

int j=strlen(str2),i;

//Now replace n digits after p of str1

for(i=0;i<n;i++){

str1[p+i]=str2[j-1-i];

}

//Now, i have used c library strtol

long ans = strtol(str1, NULL, 2);

//print result.

printf("%lx",ans);

return 0;

}

4 0

3 years ago

g Create a program that reads a list of states from an input file, puts them in order, and displays the sorted list to the user.

mixas84 [53]

Answer:

Check the explanation

Explanation:

# Step 1

the first thing to execute will be......

f = open("states.txt")

# Step 2

the second step is......

states = []

for line in f:

states.append(line.strip())

# Step 3:

the third step is to......

for state in sorted(states):

print(state)

f.close()

3 0

3 years ago

What are the pros and cons of MP3 audio archives?

UkoKoshka [18]

Was this in reference to literal audio archives? If so, I don't see any cons beside possible copyright infringement.

If you're talking about the codecs themselves, then I can do that.

Pros:

- Widespread acceptance. Supported in nearly all hardware devices, and continually adopted by newer ones.

- Faster decoding. Much more so than FLAC, Vorbis, etc.

- Relaxed licensing schedule.

Cons:

- Lower quality and efficiency than most modern codecs. (To be fair, never really noticed this one).

- Sometimes the maximum bitrate isn't enough.

- Pretty much void/unusable for high definition audio (higher than 48kHz).

7 0

3 years ago

Well this isn't school related, but how do i watch dubbed and subbed anime for free on my computer?

Shtirlitz [24]

Crunchyroll or my anime list. Both of these work.

Hope this helps you