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4 years ago

It is an array containing information such as headers, paths and script locations wherein it is created by the web server itself

Computers and Technology

1 answer:

Naddik [55]4 years ago

4 0

Answer:

c. $_SERVER

Explanation:

$_SERVER is an array in PHP containing information about headers, paths, and script locations.

Example usage:

echo $_SERVER['HTTP_HOST'];

This will print information about HTTP_HOST header.

echo $_SERVER['DOCUMENT_ROOT'];

This provides information about document root path.

echo $_SERVER['SCRIPT_FILENAME'];

This provides information about the currently executing script.

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Identify the following as True or False.

Leni [432]

Answer:

The answer to this question as follows:

1) False

2) False

3) True

Explanation:

The description of the above option as follows

In option 1, A single character variable must be contained in one quote mark, but it is based on the alphabet, which is a specific device, and the price of a continued character varies from one device to another, that's why it is false.

In option 2, This option is wrong because in assembly language the identifier value must not exceed the length than 247 characters.

In option 3, It is correct because in the variable declaration the first char should be a letter, _, @ or $letter. A total of 1-247 characters. The default case is insensitive.

5 0

3 years ago

Write only in C, not C++.

yawa3891 [41]

Answer:

#include <iostream>

using namespace std;

int main() {

int k;

double d;

string s;

cin >> k >> d >> s;

cout << s << " " << d << " " << k << "\n" << k << " " << d << " " << s; }

Explanation:

k is int type variable that stores integer values.

d is double type variable that stores real number.

s is string type variable that stores word.

cin statement is used to take input from user. cin takes an integer, a real number and a word from user. The user first enters an integer value, then a real number and then a small word as input.

cout statement is used to display the output on the screen. cout displays the value of k, d and s which entered by user.

First the values of k, d and s are displayed in reverse order. This means the word is displayed first, then the real number and then the integer separated again by EXACTLY one space from each other. " " used to represent a single space.

Then next line \n is used to produce a new line.

So in the next line values of k, d and s are displayed in original order (the integer , the real, and the word), separated again by EXACTLY one space from each other.

The program along with the output is attached.

7 0

4 years ago

What is the inverse function of d(x ) = -2x - 6?

PtichkaEL [24]

Answer:

$-\frac{x}{2} - 3$

Explanation:

d(x) = -2x - 6

to find the inverse of a function, you need to follow these steps:

1. set d(x) = y

2. interchange the variables, so y becomes x and x becomes y

3. solve the equation for y

step 1: set d(x) = y

y = -2x -6

step 2: interchanging the variables

y = -2x - 6 turns into x = -2y - 6

step 3: solving for y

x = -2y - 6 < add 6 to both sides to get rid of it on the right

x + 6 = -2y < divide both sides by -2 to get y alone

x + 6 / -2 = $-\frac{x}{2} - 3$

-2y / -2 = y

$-\frac{x}{2} - 3$ = y

so the inverse of the function is $-\frac{x}{2} - 3$

7 0

3 years ago

Explain how the number of jobs available to workers has been affected by the use of ICT in commerce and industry, using specific

blondinia [14]

Answer:

The main cause of lack of jobs is due to automation and the ability for computers to do everything faster, more efficiently and effectively.

Explanation:

A specific example - Data entry jobs are redundant from automation programs

- Economic Forum predicted a net increase of 58 million jobs for automation, so this accounts for losses but isn't case specific to data entry

6 0

2 years ago

A ____ error occurs when the javascript interpreter encounters a problem while a program is executing.

Leya [2.2K]

It is a runtime error thart occurs when the javascript interpreter encounters a problem while a program is executing.

5 0

3 years ago