Answer:
The answers to 1st question and part 2A is given. However, the 2B is not given complete and thus cannot be answered.
Explanation:
UNION is a keyword used in C Language to have a commonly shared memory that can be used by multiple elements. It is a data-type that allows different data types to use the same shared memory location.
Importance: If you want to minimize the use of memory by sharing it between different datatype variables, then use UNION. For Ex. Let's suppose I want to use 2 variables a and b of type char and int respectively. Now, suppose int takes memory space of 2 bytes and char takes 1 byte then the total amount of memory needed = 2 + 1 = 3 Bytes. But, we want to first make use of a, and once done, we want to declare variable b. We can limit the memory use by declaring a memory space of 2 bytes (max of a and b). First, we can use this space to store the int variable and when done with it, we can use it to store the char variable.
PART 2A
typedef struct{
int partNum;
char partName[25];
} partin;
#define Partin partin
Answer:
The right answer is wire crimper tool.
Explanation:
According to the scenario, the most appropriate answer is the wire crimping tool because the wire crimping tool is a tool that can strip the wire then cut it in proper shape and then crimp the wire in the RJ45 connector very effectively.
RJ45 connector is a connector which is used in ethernet cables to connect to computers i.e. cat 5, cat 5e, cat 6, etc. these cable has 4 pairs of different color codes.
A wire crimper effectively connects the end of the cable to an RJ45 connector.
Answer:
Program written in Java is as follows
See comments for explanations
import java.util.Scanner;
public class CheckRange {
public static void main (String [] args)
{
// This line allows the program accept user input
Scanner input = new Scanner(System.in);
//This line declares variable for user input
int num;
//This line prompts user for input
System.out.print("Number: ");
//This line gets user input
num = input.nextInt();
/* The following if statement checks if the user input is greater than 5 and less than 20 */
if (num > 5 && num <= 20)
{
/* This line is executed if the above condition is true */
System.out.print(num+" is greater than 5 and less than 20");
}
else
{
/*If the condition is not true, this line is executed*/
System.out.print(num+" is not within specified range");
}
// The if condition ends here
}
}
A composite primary key applies to more than one field. <span>A table can have only one primary key, which may consist of single or multiple fields.</span>
A composite primary key is selected from Design view. <span>In Design </span>view<span>, you can use the </span>Primary Key<span> button to assign or remove the </span>primary key<span> designation for the </span>selected<span> field or fields.</span>
Answer:
I'd choose A, all of the above.
Reasoning Why:
I'll be taking you on a step to step process on why I inputted the answer.
The <div>, is basically like a container that you can group tougher, why this is great is because you can edit the div using a background-color effecting that group such as the following..
EXAMPLE OF BACKGROUND-COLOR DIV (background-color)
<!DOCTYPE html>
<html>
<head>
<title>Brainly Example | HTML Div</title>
<style>
#byexample{
background-color:red;
/*Example of the Background-color attrib*/
/*You can also use the background-image attrib, however I recommend you checkout W3Schools, on that topic.*/
}
</style>
</head>
<body>
<div id="byexample">
<p>Just some random text to demonstrate.</p>
</div>
</body>
</html>
END OF EXAMPLE
You can also, in the <div> change multiple styles of an element in the div. However, if do want to change the styles of a single element you would need to nest it.
<!DOCTYPE html>
<html>
<head>
<title>Brainly Example | HTML Div</title>
<style>
#byexample #text{
background-color:red;
color:yellow;
}
</style>
</head>
<body>
<div id="byexample">
<p id="text">Just some random text to demonstrate.</p>
</div>
</body>
END OF EXAMPLE
Lastly, you can group elements using divs, as stated in openclassroom (website).
Anyways, I hope this helped!
Happy coding!
