Answer:
Explanation:
dxfcgvhb
What is the definition of: a computer network? data communications? telecommunications? a local area network? a personal area network? a metropolitan area network a wide area network? network management? convergence? g
Answer:
The answer is below
Explanation:
1. Computer Network: this is a system of interconnection of computers and computing devices that utilizes wires or radio waves over certain reachable locations.
2. Telecommunications: this is known to be the system or combination of telephones device and networks that transmit telephone signals.
3. A local area network: often referred to as LAN, is a system of networks that covers a smaller area usually within a room, floor, building, or campus.
4. Personal area network: often referred to as PAN, this is a network that covers few distances, usually between wireless devices like PDAs, laptops, and other devices.
5. Metropolitan area network: often referred to as MAN, this is a system of the network that serves quite a larger area, usually between that serve an area of 1 to 30 miles radius. For example, a typical city.
6. Wide area network: often referred to as WAN, this is a system of a large network that covers a large area such as parts of states, many states, countries, and the world at large.
7. Network management: this is defined to be a process of designing, installing, and supporting a computer network, such as computer hardware and software
8. Convergence: this is known to be a connection, combination, and integration of two or more computer technologies in a single device or system for operation.
Give three reasons to use a hard drive as mass storage.
Answer:
Every computer – whether it's a tower desktop or laptop – is equipped with an internal hard drive. The hard drive is where all your permanent computer data is stored. Whenever you save a file, photo, or software to your computer, it's stored in your hard drive
Explanation:
Backups and Archives. ...
Media Libraries. ...
Large Capacity Storage. ...
NAS Drives and Security. ...
RAID Arrays. ...
Other Uses.
transmits data wirelessly via infrared (IR) light waves.
As
O A. RFID
B. Ethernet
O C. Bluetooth
D. IrDA
Reset Selection
Write a recursive function named is_decreasing that takes as its parameter a list of numbers. It should return True if the elements of the list are strictly decreasing (each element in the array is strictly less than the previous one), but return False otherwise.
Answer:
c
Explanation:
Write a program that creates an an array large enough to hold 200 test scores between 55 and 99. Use a Random Number to populate the array.Then do the following:1) Sort scores in ascending order.2) List your scores in rows of ten(10) values.3) Calculate the Mean for the distribution.4) Calculate the Variance for the distribution.5) Calculate the Median for the distribution.
Answer:
Explanation:
The following code is written in Python. It uses the numpy import to calculate all of the necessary values as requested in the question and the random import to generate random test scores. Once the array is populated using a for loop with random integers, the array is sorted and the Mean, Variance, and Median are calculated. Finally The sorted array is printed along with all the calculations. The program has been tested and the output can be seen below.
from random import randint
import numpy as np
test_scores = []
for x in range(200):
test_scores.append(randint(55, 99))
sorted_test_scores = sorted(test_scores)
count = 0
print("Scores in Rows of 10: ", end="\n")
for score in sorted_test_scores:
if count < 10:
print(str(score), end= " ")
count += 1
else:
print('\n' + str(score), end= " ")
count = 1
mean = np.mean(sorted_test_scores)
variance = np.var(sorted_test_scores, dtype = np.float64)
median = np.median(sorted_test_scores)
print("\n")
print("Mean: " + str(mean), end="\n")
print("Variance: " + str(variance), end="\n")
print("Median: " + str(median), end="\n")
Write programming code in C++ for school-based grading system. The program should accept the Subject and the number of students from a user and store their details in an array of type Student (class). The student class should have: • studName, indexNo, remarks as variables of type string, marks as integer, and grade as char. • A void function called getData which is used to get students’ details (index number, name, and marks). • A void function called calculate which will work on the marks entered for a student and give the corresponding grade and remarks as give below. Marks Grade Remarks 70 – 100 A Excellent 60 – 69 B Very Good 50 – 59 C Pass 0 – 49 F Fail • Should be able to display the results for all students (index number, name, marks, grade, remarks). 2. Draw a flowchart for the calculate function above. 3. Create a folder with name format ICTJ254_indexnumber (eg
Answer:
Explanation:
// C++ Program to Find Grade of Student
// -------codescracker.com-------
#include<iostream>
using namespace std;
int main()
{
int i;
float mark, sum=0, avg;
cout<<"Enter Marks obtained in 5 Subjects: ";
for(i=0; i<5; i++)
{
cin>>mark;
sum = sum+mark;
}
avg = sum/5;
cout<<"\nGrade = ";
if(avg>=91 && avg<=100)
cout<<"A1";
else if(avg>=81 && avg<91)
cout<<"A2";
else if(avg>=71 && avg<81)
cout<<"B1";
else if(avg>=61 && avg<71)
cout<<"B2";
else if(avg>=51 && avg<61)
cout<<"C1";
else if(avg>=41 && avg<51)
cout<<"C2";
else if(avg>=33 && avg<41)
cout<<"D";
else if(avg>=21 && avg<33)
cout<<"E1";
else if(avg>=0 && avg<21)
cout<<"E2";
else
cout<<"Invalid!";
cout<<endl;
return 0;
}
a. Download the attached �Greetings.java� file.
b. Implement the �getGreetings� method, so that the code prompts the user to enter the first name, the last name, and year of birth, then it returns a greetings message in proper format (see the example below). The �main� method will then print it out. Here is an example dialogue with the user:
Please enter your first name: tom
Please enter your last name: cruise
Please enter your year of birth: 1962
Greetings, T. Cruise! You are about 50 years old.
Note that the greetings message need to be in the exact format as shown above (for example, use the initial of the first name and the first letter of the last name with capitalization).
c. Submit the final �Greetings.java� file (DO NOT change the file name) online.
Answer:
Code:
import java.util.*;
public class Greetings
{
public static void main(String[] args)
{
Scanner s = new Scanner(System.in);
System.out.println(getGreetings(s));
}
private static String getGreetings(Scanner console)
{
System.out.print("Please enter your first name: ");
String firstName=console.next();
char firstChar=firstName.toUpperCase().charAt(0);
System.out.print("Please enter your last name: ");
String lastName=console.next();
lastName=lastName.toUpperCase().charAt(0)+lastName.substring(1, lastName.length());
System.out.print("Please enter your year of birth: ");
int year=console.nextInt();
int age=getCurrentYear()-year;
return "Greetings, "+firstChar+". "+lastName+"! You are about "+age+" years old.";
}
private static int getCurrentYear()
{
return Calendar.getInstance().get(Calendar.YEAR);
}
}
Output:-
I think you have been doing a great job but you haven’t been signing many people up for our new service feature I want you to set a goal of signing up 25% of your new customers for our new service feature if I get 96 new customers that means I have to get how many of them to sign up
Answer:
24 customers
Explanation:
Given
[tex]Customers = 96[/tex]
[tex]p = 25\%[/tex] --- proportion to sign up
Required
The number of customers to sign up
This is calculated as:
[tex]n = p * Customers[/tex]
So, we have:
[tex]n = 25\% * 96[/tex]
[tex]n = 24[/tex]
what are the services offered by web-based email?
Answer:
Web based email is a service that allows to access and use electronic mail via web browser.
It allows clients to login into the email software running on a web server to compose, send and receive, delete mails basically.
Draw AND, OR, XOR and XNOR gates with truth table and logic gates.
.
Answer:
see picture. let me know if you have questions.
Write an application that throws and catches an ArithmeticException when you attempt to take the square root of a negative value. Prompt the user for an input value and try the Math.sqrt() method on it. The application either displays the square root or catches the thrown Exception and displays an appropriate message.
Answer:
Sample output:
Enter the number: 25
The square root of 25 is: 5
Enter the number: -25
The square root of 25 is: Nan
Explanation:
Here the code is given as follows,
A computer has many resources. A resource can be memory, disk drive, network bandwidth, battery power, or a monitor. It can also be system objects such as shared memory or a linked list data structure. This principle is based in object-oriented programming (OOP). In OOP, a class definition encapsulates all data and functions to operate on the data. The only way to access a resource is through the provided interface. Which security principle are we referring to
Answer:
The security principle being referred to here is:
Resource Encapsulation.
Explanation:
Resource Encapsulation is one of the cybersecurity first principles. It allows access or manipulation of the class data as intended by the designer. The cybersecurity first principles are the basic or foundational propositions that define the qualities of a system that can contribute to cybersecurity. Other cybersecurity first principles, which are applied during system design, include domain separation, process isolation, modularization, abstraction, least principle, layering, data hiding, simplicity, and minimization.
write a programmimg code in c++ for school based grading system, the program should accept the subject in the number of students from a user and store their details in the array of type student(class) the student class you have:
1. number student name, index number remarks as variables of type string, marks as integer and grade as char.
2. avoid function called getData which is used to get student details
3. avoid function called calculate which will work on the marks and give the corresponding great and remarks as given below on
Marks 70-100 grade A remarks excellent Mark 60-69 Grade B remarks very good marks 50-59 grade C remarks pass maths 0-49 grade F remarks fail
Answer:
The program is as follows:
#include <iostream>
#include <string>
using namespace std;
class Student{
string studName, indexNo, remarks; int marks; char grade;
public:
void getData(){
cin.ignore();
cout<<"ID: "; getline(cin,indexNo);
cout<<"Name:"; getline(cin,studName);
cout<<"Marks: ";cin>>marks; }
void calculate(){
if(marks>=70 && marks<=100){
remarks ="Excellent"; grade = 'A'; }
else if(marks>=60 && marks<=69){
remarks ="Very Good"; grade = 'B'; }
else if(marks>=50 && marks<=59){
remarks ="Pass"; grade = 'D'; }
else{
remarks ="Fail"; grade = 'F'; }
cout << "Grade : " << grade << endl;
cout << "Remark : " << remarks << endl; }
};
int main(){
int numStudents;
cout<<"Number of students: "; cin>>numStudents;
Student students[numStudents];
for( int i=0; i<numStudents; i++ ) {
cout << "Student " << i + 1 << endl;
students[i].getData();
students[i].calculate(); }
return 0;}
Explanation:
This defines the student class
class Student{
This declares all variables
string studName, indexNo, remarks; int marks; char grade;
This declares function getData()
public:
void getData(){
cin.ignore();
Prompt and get input for indexNo
cout<<"ID: "; getline(cin,indexNo);
Prompt and get input for studName
cout<<"Name:"; getline(cin,studName);
Prompt and get input for marks
cout<<"Marks: ";cin>>marks; }
This declares funcion calculate()
void calculate(){
The following if conditions determine the remark and grade, respectively
if(marks>=70 && marks<=100){
remarks ="Excellent"; grade = 'A'; }
else if(marks>=60 && marks<=69){
remarks ="Very Good"; grade = 'B'; }
else if(marks>=50 && marks<=59){
remarks ="Pass"; grade = 'D'; }
else{
remarks ="Fail"; grade = 'F'; }
This prints the grade
cout << "Grade : " << grade << endl;
This prints the remark
cout << "Remark : " << remarks << endl; }
};
The main begins here
int main(){
This declares number of students as integer
int numStudents;
Prompt and get input for number of students
cout<<"Number of students: "; cin>>numStudents;
This calls the student object to declare array students
Student students[numStudents];
This is repeated for all students
for( int i=0; i<numStudents; i++ ) {
Print number
cout << "Student " << i + 1 << endl;
Call function to get data
students[i].getData();
Call function to calculate
students[i].calculate(); }
return 0;}
How to create a network of relevant prospects?
Answer:
By connecting with industry-specific and relevant prospects.
Now with 760 million+ people, how can you find the most relevant people to connect with? The answer is: With the help of LinkedIn automation tools.
There are a number of best LinkedIn automation tools that come with advanced search filters to help you refine your target audience. These LinkedIn automation tools have special operators that help users find and reach even the most difficult leads.
However, there is a drawback. These LinkedIn automation tools can cause spam if you send thousands of connection requests or messages in a short time.
Moreover, if you send templated connect notes or messages, you’re likely to get a very low or almost zero acceptance and response rate.
Consider an Erlang loss system. The average processing time is 3 minutes. The average inter-arrival time is 3 minutes. The number of servers is 3. What is r (sometimes referred to as the offered load)
Answer:
r = 1
Explanation:
Average processing time ( p ) = 3 minutes
Average inter-arrival time ( a ) = 3 minutes
number of servers ( m ) = 3
Determine the value of r
r ( offered load ) = p/a
= 3 / 3 = 1
∴ value of r ( offered load ) = 1
Research via the internet and find an article in the news regarding wireless hacking, hardware hacking, or other security breach. As security and IT changed so rapidly, your article should be no older than 2007 (i.e. Less than 5 years old). Summarize the article using at least 500 words.
Hi, I provided some explanation of key terms.
Explanation:
Wireless hacking: basically the term refers to any unethical activity carried over a radio wave-connected network (eg Internet or Wifi connection) that would provide unauthorized access to information.
Hardware hacking: On the other hand, hardware hacking involves resetting physical hardware with the objective of using it in a way not originally intended by the manufacturer.
Help Pls
I need about 5 advantages of E-learning
Answer:
Explanation:
E-learning saves time and money. With online learning, your learners can access content anywhere and anytime. ...
E-learning leads to better retention. ...
E-learning is consistent. ...
E-learning is scalable. ...
E-learning offers personalization.
Answer:
E- learning saves time and money
E-learning makes work easier and faster
E- learning is convenient
E- learning is consistent
E- learning is scalable
Explanation:
when you learn using the internet, you save a lot of time by just typing and not searching through books
Which statement is trueBlockchain is often associated with Bitcoin and the financial services industry. However, it is applicable to almost every industry. The term Multi-party Systems better describes how the blockchain system is used.
What is a benefit of a Multi-party System? about blockchain?
Blockchain is sometimes refers to original Bitcoin blockchain.
Answer :
Blockchain is defined as the database system which maintains and also records the data in various ways which allows the multiple organizations.
Blockchain and multiparty systems specializes in the supply chain or digital identity and also financial services.
A multi-party system prevents leadership of the single party from the controlling a single legislative chamber without any challenge.
Learn more :
https://brainly.in/question/43683479
Write a program that produces the following output:CCCCCCCCC CC CC CC CC CCCCCCCCC Note: The letter C in the output must be uppercas
Answer:
CCCCCCCCC ++ ++ CC ++ ++ CC ++++++++++++++ +++++++++++++++ CC ++++++++++++++ +++++++++++++++ CC ++ ++ CCCCCCCCC ++ ++
Note: The letter C in the output must be uppercase.
#include <iostream>
using namespace std;
int main()
{
cout<<"CCCCCCCCC ++ ++ CC ++ ++ CC ++++++++++++++ +++++++++++++++ CC +++++++++++++\n";
cout<<"+++++++++++++++ CC ++ ++ CCCCCCCCC ++ ++";
return 0;
}
Which option is used in order to configure switchboards for a complex database?
Switchboard Manager
Global Options
Quick Search
Database Formatter
worth 100 points
Answer:
switch board manager
Explanation:
How many cost units are spent in the entire process of performing 40 consecutive append operations on an empty array which starts out at capacity 5, assuming that the array will grow by a constant 2 spaces each time a new item is added to an already full dynamic array
Answer:
Explanation:
260 cost units, Big O(n) complexity for a push
how did hitles rules in nazi germany exemplify totiltarian rule?
Answer:
hope this helps if not srry
Write a C program that will load entries from a file containing details of books and prints them.
Program Requirements:
a. Load file containing details of books
b. Print out all the books Required approach:
1. Design a struct/class that can hold the details of an individual book.
2. Dynamically allocate an array of these objects. The size should be the number of book entries from the input file given by the user.
3. Load all of the book entries into this array of objects before printing
Answer:
........
Explanation:
Which Windows installation method requires the use of Windows deployment services (WDS)?
1. Network Installation
2. Repair Installation
3. Bootable flash drive installation
4. Unattended installation
Answer:
1. Network Installation
Explanation:
Given
Options (1) to (4)
Required
Which requires WDS for installation
WDS are used for remote installations where users do not have to be physically present before installations can be done; in other words, it is necessary for network based installations.
Of all the given options, (a) is correct because without WDS, network installation cannot be done.
What is the advantages and disadvantages of hardware devices and software devices ?
Urgent need for assignment due today 12 o’clock!
Answer:
Advantages of hardware:
Physical existence
Multitasking
Speedy
Disadvantages:
Costly as different equipment cost differently
Time consuming
requires space
Privacy issues
Explanation:
Advantages of Software:
Less costly
Improved privacy controls
Requires no space
Disadvantages:
Does not have physical existence
hacking and cyber attacks may steal important information
Regular updates required
what is the build in libary function to compare two strings?
Answer:
strcmp() is a built-in library function and is declared in <string. h> header file. This function takes two strings as arguments and compare these two strings lexicographically.
Explanation:
Hope it helps
what is programming language?
Answer:
A programming language is a formal language comprising a set of strings that produce various kinds of machine code output. Programming languages are one kind of computer language, and are used in computer programming to implement algorithms. Most programming languages consist of instructions for computers
Answer:
The artificial languages that are used to develop computer programs are called programming language . hope this help!
What is the easiest way to deploy a C++ program to a user’s computer? a. Copy the source code to the user’s computer and then compile it b. Create a batch file that copies the program to the user’s computer and then run it c. Copy the executable file to the user’s computer d. Create an installer program and then run it on the user’s computer
Answer:
c. Copy the executable file to the user’s computer
Explanation:
When you run a c++ program, an executable file (.exe) is created in the same directory with the source file.
To deploy this program on another system, you need to transfer the executable file from the original system where the program was executed to the new system.
The program will work fine without errors.
However, do not mistake the executable file for the source file. The source file ends in .cpp.
Define a class named Payment that contains an instance variable of type double that stores the amount of the payment and appropriate get and set methods. Also, create a method named paymentDetails that outputs an English sentence to describe the payment amount. Next, define a class named CashPayment that is derived from Payment. This class should redefine the paymentDetails method to indicate that the payment is in cash. Include appropriate constructor(s). Define a class named CreditCardPayment that is derived from Payment. This class should contain instance variables for the name on the card, expiration date, and credit card number. Include appropriate constructor(s). Finally, redefine the paymentDetails method to include all credit card information. Define a class named PaymentTest class that contains the main() method that creates two CashPayment and two CreditCardPayment objects with different values and calls paymentDetails for each. (5 pts)
Answer:
The code is given below:
class Payment
{
private double amount;
public Payment( )
{
amount = 0;
}
public Payment(double amount)
{
this.amount = amount;
}
public void setPayment(double amount)
{
this.amount = amount;
}
public double getPayment( )
{
return amount;
}
public void paymentDetails( )
{
System.out.println("The payment amount is " + amount);
}
}
class CashPayment extends Payment
{
public CashPayment( )
{
super( );
}
public CashPayment(double amt)
{
super(amt);
}
public void paymentDetails( )
{
System.out.println("The cash payment amount is "+ getPayment( ));
}
}
class CreditCardPayment extends Payment
{
private String name;
private String expiration;
private String creditcard;
public CreditCardPayment()
{
super( );
name = " ";
expiration = " ";
creditcard = "";
}
public CreditCardPayment(double amt, String name, String expiration, String creditcard)
{
super(amt);
this.name = name;
this.expiration = expiration;
this.creditcard = creditcard;
}
public void paymentDetails( )
{
System.out.println("The credit card payment amount is " + getPayment( ));
System.out.println("The name on the card is: " + name);
System.out.println("The expiration date is: " + expiration);
System.out.println("The credit card number is: " + creditcard);
}
}
class Question1Payment
{
public static void main(String[ ] args)
{
CashPayment cash1 = new CashPayment(50.5), cash2 = new CashPayment(20.45);
CreditCardPayment credit1 = new CreditCardPayment(10.5, "Fred", "10/5/2010",
"123456789");
CreditCardPayment credit2 = new CreditCardPayment(100, "Barney", "11/15/2009",
"987654321");
System.out.println("Cash 1 details:");
cash1.paymentDetails( );
System.out.println( );
System.out.println("Cash 2 details:");
cash2.paymentDetails( );
System.out.println( );
System.out.println("Credit 1 details:");
credit1.paymentDetails( );
System.out.println( );
System.out.println("Credit 2 details:");
credit2.paymentDetails( );
System.out.println( );
}
}
Output:
Programming languages categorize data into different types. Identify the characteristics that match each of the following data types.
a. Can store fractions and numbers with decimal positions
b. Is limited to values that are either true or false (represented internally as one and zero).
c. Is limited to whole numbers (counting numbers 1, 2, 3, ...)
Answer:
a) Integer data type.
b) Real data type.
c) Boolean data type.
Explanation:
a) Integer data type is limited to whole numbers (counting numbers 1, 2, 3…….).
b) Real data type can store fractions and numbers with decimal positions (such as dollar values like $10.95).
c) Boolean data type is limited to values that are either true or false (represented internally as 1 and 0 respectively).
