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4 years ago

1. Discuss each of the following terms: a. data b. field c. record d. file

Computers and Technology

1 answer:

tigry1 [53]4 years ago

7 0

Answer:

A) Data:

The raw facts and the figure is known as data. It is collected from different types of sources for different kinds of purposes. Data is stored in the form of information that is used by the computer system.

For example: data is collected by the research paper and e-mail is also the example of data.

B) Field:

Field is defines as the character and the group of characters in the form of alphabets and in numeric form which contain specific meaning. A field is use to define various components and storing the data in the system.

C) Record:

A set of one and more than one field which logically describe the particular information or data within the same domain is known as record. A set of various records is constitute as file. It is also refers to the unique field information.

D) File:

A collection of various records is known as file. Files are used in the computer system for storing various types of data and information.

For example: A file contain the records of the students.

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"Switches break up _______________ domains and routers break up _____________ domains."

mel-nik [20]

Answer:

Switches break up collision domains and routers break up broadcast domains.

Explanation:

Collision domain depicts the part within a network where a collision can happen.
Collision occurs when two hosts transmit data packet at the same time within a network. Theses packets collide and the hosts have to resend the data after some time.
Too many collisions can result in slow traffic speed and can effect network performance.
So switches break up collision domains between the devices on a network and each port in a switch depicts a collision domain. This reduces the chance of packet collisions between the devices or hosts.
When data is to be sent to a host, the switch keeps that data frame and waits for availability of the destination host before sending the data frame.
Moreover full duplex switch mode there is not chance of collision as the transmitting path on one host is the receiving path on other host.

Broadcast domain contains all the hosts that can reach each other at the Data Link layer via broadcast.
Routers break up broadcast domains as routers contain separate broadcast domains for each interface.
Routers do not forward broadcasts from one broadcast domain to other and drop the packet when they detect a broadcast address.

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3 years ago

Money left over after the bills are paid is referred to as

sveta [45]

Change is what is left over

ex. the cashier tells you "here is your leftover change sir/ma'am "<span />

3 0

4 years ago

Read 2 more answers

Write a program FindDuplicate.java that reads n integer arguments from the command line into an integer array of length n, where

kozerog [31]

Answer:

public class FindDuplicate{
public static void main(String[] args) {
Scanner input = new Scanner(System.in);
int n = 5;
int arr[] = new int[n];
for(int i=0; i < arr.length; i++){
int inputNum = input.nextInt();
if(inputNum >=1 && inputNum <=n) {
arr[i] = inputNum;
}
}
for(int j =0; j < arr.length; j++){
for(int k = 0; k < arr.length; k++){
if(j == k){
continue;
}else{
if(arr[j] == arr[k]){
System.out.println("True");
return;
}
}
}
}
System.out.println("False");
}
}

Explanation:

Firstly, create a Scanner object to get user input (Line 4).

Next, create an array with n-size (Line 7) and then create a for-loop to get user repeatedly enter an integer and assign the input value to the array (Line 9 - 14).

Next, create a double layer for-loop to check the each element in the array against the other elements to see if there is any duplication detected and display "True" (Line 21 - 22). If duplication is found the program will display True and terminate the whole program using return (Line 23). The condition set in Line 18 is to ensure the comparison is not between the same element.

If all the elements in the array are unique the if block (Line 21 - 23) won't run and it will proceed to Line 28 to display message "False".

7 0

3 years ago

The number of pixels displayed on the screen is known as

puteri [66]

Answer: Resolution

Explanation: The total number of pixels that can be displayed on the screen at a time is called the resolution of the screen. This resolution is normally described in the pair of numbers, such as 2560 x 1440. This means, the computer screen is 2560 pixels wide and 1440 pixels tall.

4 0

3 years ago

Exercise 8.1.9: Diving Contest Your school is hosting a diving contest, and they need a programmer to work on the scoreboard! Yo

vampirchik [111]

Answer:

def calculate_score(theTuple):

first, second, third = theTuple

if first >= 0 and first <=10 and second >= 0 and second <=10 and third >= 0 and third <=10:

print(first + second+third)

else:

print("Range must be 0 to 10")

Explanation:

This line defines the function

def calculate_score(theTuple):

This line gets the content of the function

first, second, third = theTuple

The following if condition checks if the digits are in the range 0 to 10

if first >= 0 and first <=10 and second >= 0 and second <=10 and third >= 0 and third <=10:

This calculates the sum

print(first + second+third)

else:

If number is outside range 0 and 10, this line is executed

print("Range must be 0 to 10")

4 0

4 years ago