Answer:
Model B should be deployed.
Explanation:
(a) I would deploy the model that does well on generalizing well on validation data and does considerably well on training data, Hence, Model B should be deployed because it has less BIAS and the problem of overfitting the training set is evaded.
(b) Model A does well on the training dataset and not very well on test/validation dataset because it has OVERFITTED the training set.
OVERFITTING is a scenario where the model has large variance and low bias, that is has a perfect representation of the training set and performs woefully on generalizing validation set. For instance when a neural network has too much hidden layers and no regularization or dropout.
OVERFITTING is a common scenario in model Development.
Final answer:
Model B is slightly less accurate on the training data but more accurate on validation data, suggesting better generalization capabilities and making it a better candidate for final deployment. Model A's overfitting to the training data likely causes its reduced accuracy on validation data.
Explanation:
When comparing two models applied to a data set, the choice for final deployment depends not just on accuracy but on the model's ability to generalize. In this scenario, Model B may be preferred for final deployment because while it is less accurate on the training data, its higher accuracy on validation data suggests better generalization, which means it could perform more reliably with new, unseen data. The higher accuracy of Model A on training data may indicate overfitting, where the model is too closely tailored to the training set and doesn't perform well in predicting outcomes for data it hasn't seen before.
The phenomenon where a model is highly accurate on training data but performs worse on unseen data is common in machine learning and is a classic symptom of overfitting. Overfitting occurs because the model learns the noise in the training data alongside the actual signal. This noise does not generalize to new data, hence the dip in accuracy when applied to validation data. In contrast, Model B's slightly lower performance on training data but marginally better performance on validation data suggests it may have struck a better balance between bias and variance, leading to a potentially more robust model that is less likely to overfit.
Write an application that prompts a user for a month, day, and year. Display a message that specifies whether the entered date is (1) not this year, (2) in an earlier month this year, (3) in a later month this year, or (4) this month. Save the file as PastPresentFuture.jav
Answer:
Following is given the code with all necessary description given as comments in it. I hope it will help you!
Explanation:
Find a quote that you like. Store the quote in a variable, with an appropriate introduction such as "Ken Thompson once said, 'One of my most productive days was throwing away 1000 lines of code'". Print the quote.
Answer:
The program to this question as follows:
Program:
quote="You can always edit a bad page. You can’t edit a blank page."
name="Jodi Picoult"
print("Quote:\n",quote)
print ('\t\t\t\t\t\t\t',"Author name-", name)
Output:
Quote:
You can always edit a bad page. You can’t edit a blank page.
Author name- Jodi Picoult
Explanation:
In the above python code, two variable "quote and name" is defined, in which variable both variable holds some string value.
In the next line, the print function is defined, that first print "Quote" as a message, and for line breaking "\n" is used, then print quote variable value. In the last step, first, we use "\t" for line spacing then message "Author name-", and then name variable value.A ____ object is used to hold data that is retrieved from a database via the OleDbDataAdapter connection. a. DataRecord b. DataSource c. DataFile d. DataTable
Answer:
datatable
Explanation:
Answer:
the answer is
data table
Explanation:
i think so
Write a program that does the following:
1. Declare the String variables firstname and lastname.
2. Prompt the user for first name and last name.
3. Read in the first name and last name entered by the user.
4. Print out Hello follow by user
Answer:
Following is the program in Java language:
import java.util.*;//import package
public class Main // main class
{
public static void main(String[] args) // main method
{
String firstname,lastname; // Declare the two String variables
Scanner ob=new Scanner(System.in); // create a object of scanner //class
System.out.println("Enter the first name:"); // Prompt the user for // enter the first name
firstname=ob.nextLine();// Read in the first name by user
System.out.println("Enter the last name:"); // Prompt the user for last //name
lastname=ob.nextLine();// Read in the last name by user
System.out.println("Hello " + firstname +' ' +lastname); // print the //firstname,lastname
}
}
Output:
Enter the first name:
San
Enter the last name:
ert
Hello San ert
Explanation:
Following are the description of program
Declared two variable of string type i.e "firstname" and "lastname".Create a instance or object of scanner class .i.e "ob". Prompt the user to enter the first name in the "firstname" variableRead in the first name by the user by using the method nextLine() in the first name variable Prompt the user to enter the last name. Read in the last name by the user by using the method nextLine() in the lastname variable. Finally, print the first name and last name.In the twentieth century, Xerox’s ____ had outstanding research personnel—at the time almost half of the world’s top 100 computer scientists. Select one: a. SPARK b. PARC c. INTC d. AMD
In the twentieth century, Xerox’s PARC had outstanding research personnel—at the time almost half of the world’s top 100 computer scientists
Explanation:
PARC is the part of XEROX, whereas, SPARK is owned by Adobe. INTC is owned by Intel Corporation.and AMD's major share is hold by the Intel Corporation.Hence Xerox had the PARC, which enabled an outstanding research in the world, in the twentieth century.Recent interest of the PARC is on wireless technology in the year 2017.In this assignment you will implement a class called "string_class". Place the class declaration in the file "string_class.h" and the class implementation in the file "string_class.cpp". The class has the following characteristics"
1. A private string variable "current_string".
2. A default constructor that sets "current_string" to an empty string ("").
3. An explicit-value constructor that sets "current_string" equal to the argument that is passed to the explicit-value constructor when a string_class object is declared.
4. A public member Boolean function called "palindrome" that returns true if the current_string reads the same forward asit does backwards; otherwise it return false. For example "madam", "463364", and "ABLE WAS I ERE I SAW ELBA" are all palindromes.
5. A public member string function called "replace_all" that accepts two string arguments, " old_substring" and "new_substring". The function will return a copy of the string "current_string" with each occurrenceof "old_substring" replacedby "new_substring". For example, when the function is invoked, if current_string = "aaabbacceeaaa", old_substring = "aa", and new_substring= "zzz", then after execution of the function, current_string = "zzzabbacceezzza", and the function will return "zzzabbacceezzza". NOTE: DO NOT USE THE STRING CLASS FUNCTIONS "find", "replace", or "substr".
6. Overload the insertion operator (<<) as a friend function of the class with chaining to print the contents of a string_class object’s "current_string".
7. You make implement other class member functions if necessary
Call the driver to test the functionality of string_class, "stringclass_driver.cpp". See the sample main program below. You can use this to test your driver. The file is also posted in Canvas. You should submit the files "string_class.h", "string_class.cpp", and "stringclass_driver.cpp" together in a zip file.
Answer:
string_class.h:
include <string>
using namespace std;
class string_class
{
private:
string current_string;
public:
string_class();
string_class(string temp);
bool palindrome();
string replace_all(string Old, string New);
friend ostream& operator<<(ostream& os,string_class& temp);
};
string_class.cpp:
#include "string_class.h"
#include<algorithm>
using namespace std;
string_class::string_class()
{
this->current_string = "";
}
string_class::string_class(string temp)
{
this->current_string = temp;
}
bool string_class::palindrome()
{
string temp = this->current_string;
reverse(temp.begin(), temp.end());
if (temp == this->current_string)
return true;
return false;
}
string string_class::replace_all(string Old, string New)
{
for (int i = 0; i < int(this->current_string.length()); i++)
{
string replace = "";
for (int j = 0; j < int(Old.length()); j++)
replace += this->current_string[i + j];
if (replace == Old)
{
string final = "";
for (int j = i + Old.length(); j < int(this->current_string.length()); j++)
final += this->current_string[j];
this->current_string = final;
}
}
return this->current_string;
}
ostream& operator<<(ostream& co,string_class& temp)
{
co << temp.current_string;
return co;
}
test.cpp:
#include "string_class.h"
#include <iostream>
#include <string>
using namespace std;
int main()
{
string_class s;
cout << "**************" << endl
<< "Test#1: tesing default constructor and overloaded operator<< with chaining\n"
<< s << "1st blank line" << endl << s << "2nd blank line" << endl
<< "Test#1 Ended" << endl
<< "**************" << endl;
string_class r("hello");
cout << "**************" << endl
<< "Test#2: tesing explicit-value constructor and overloaded operator<< with chaining\n"
<< r << "1st blank line" << endl << r << "2nd blank line" << endl
<< "Test#2 Ended" << endl
<< "**************" << endl;
cout << "**************" << endl
<< "Test#3: tesing palindrome\n"
<< "**************" << endl;
string response = "Y";
string ss;
while (response == "Y" || response == "y")
{
cout << "Enter String: ";
cin >> ss;
string_class main_string(ss);
if (main_string.palindrome())
{
cout << ss << " is a palindrome\n";
}
else
{
cout << ss << " is not a palindrome\n";
}
cout << "Would you like to try another string? (Y or N): ";
cin >> response;
}
cout << "Test#3 Ended" << endl
<< "**************" << endl;
cout << "**************" << endl
<< "Test#4: tesing replace_all\n"
<< "**************" << endl;
response = "y";
string current, old_substring, new_substring;
while (response == "Y" || response == "y")
{
cout << "Enter value for current_string: ";
cin >> current;
string_class current_string(current);
cout << "Enter old_substring: ";
cin >> old_substring;
cout << "Enter new_substring: ";
cin >> new_substring;
cout << "Current string = " << current << endl
<< "New string = " << current_string.replace_all(old_substring, new_substring)
<< endl;
cout << "Would you like to try another string? (Y or N): ";
cin >> response;
}
cout << "**************" << endl
<< "Test#4: tesing replace\n"
<< "**************" << endl;
return 0;
}
Explanation:
Declare the methods inside the string_class.h.In the string_class.cpp, create the palindrome method that checks the whether a string is palindrome by comparing it with its reverse version.In the test.cpp file, test the program by calling the methods.Within a Microsoft Windows environment, who has access rights to the Encrypting File System (EFS) features and functions?
Answer:
creator of EFS file and domain of administration.
Explanation:EFS stands for encrypting file system, as the name suggests this system is used to encrypt files. It is easy to handle and it is not function-able on window 7 home, windows 7 premium. Though it is easy to installed, deployment in large environment needed careful planning
Though all the users have access to EFS features, only members with authority has the right to decrypt.
Write a program that analyzes an object falling for 10 seconds. It should contain main and two additional methods. One of the additional methods should return the distance an object falls in meters when passed the current second as an argument. See the formula needed below. The third method should convert meters to feet. You can look up the conversion factor needed online. The main method should use one loop to call the other methods and generate a table as shown below. The table should be displayed in formatted columns with decimals as shown.
Answer:
Following is given the code in JAVA as required. It analyzes an object falling for 10 seconds. All the necessary descriptions are given inside the code as comments The output of the program is also attached at the end.
I hope it will help you!
Explanation:
Final answer:
The question involves creating a program in Computers and Technology to calculate the distance of free-fall in meters and feet over 10 seconds using physics formulas and programming methods for calculations and conversions.
Explanation:
The student's question involves writing a program that calculates the distance an object falls in meters over 10 seconds, as well as converting that distance to feet. This problem applies the physics concept of free-fall, using the equation of motion h = (1/2) * g * t^2, where h is the height, g is the acceleration due to gravity (9.81 m/s2), and t is the time in seconds. The student should also write a method to convert the distance from meters to feet (1 meter = 3.28084 feet).
The main method should include a loop that calls these methods to generate a table of distances fallen and the corresponding times. To convert meters to feet, the following formula can be used:
feet = meters * 3.28084
Write a program that converts grams to pounds. (One pound equals 453.592 grams.) Read the grams value from the user as a floating point value.
Answer:
import java.util.Scanner;
public class TestClock {
public static void main(String[] args) {
Scanner in = new Scanner(System.in);
System.out.println("Enter Value in grams");
double grams = in.nextDouble();
double pounds = 453.592*grams;
System.out.println(grams+" grams is equal to "+pounds+" pounds");
}
}
Explanation:
Import the Scanner Class to receive user inputSave the user input in a variableUse the conversion 1 pound = 453.592 grams to calculate the equivalent gramsOutput the the value of pounds calculatedThe program that converts grams to pounds is as follows;
def grams_to_pounds(x):
weight_in_pounds = x / 453.592
return weight_in_pounds
w1 = grams_to_pounds(500)
w2 = grams_to_pounds(1000)
w3 = grams_to_pounds(2000)
print(w1)
print(w2)
print(w3)
Code explanationA function grams_to_pounds is declared with an argument x . The argument x is the mass in grams.The variable weight_in_pounds is use to store the value of when the mass in grams is divided by 453.592Finally, we call our function with it parameter, using the variables w1, w2 and w3 to store it.The print statement is use to print the variables.learn more on python code here: https://brainly.com/question/1620423?referrer=searchResults
Write a short program to evaluate the magnitude of the relative error in evaluating using f_hat for the input x. f_hat(x) is a function that evaluates an approximation to for a given floating point input . x is a floating point number. Store the magnitude of the relative error in using the approximation f_hat in relative_error.
Answer:
The code is as below. The solution is given in python and can be converted to other programming language.
Explanation:
As the language is not identified, it is assumed that the requirement of the language is python
As the complete question is missing, here the link to complete question is given in the comments above.
From the complete question, it is given that the approximated solution is for x86 instruction. thus as the x86 instructions are for integers only thus the complete code is as follows: Here the code is given as
#Defining the function
def relerror(x):
x=float(x);
y=int(x)
f_h=y**(0.72);
f=x**(0.72);
absol=abs(f_h-f);
rel=absol/f;
relp=(absol/f)*100;
print('The relative error for',x,' as value of x when approximated as x86 routine is ',round(relp,2),'%')
#Main program calling given function
x=input('Please enter a value in float')
relerror(x)
What percentage of the bytes sent to the physical layer is overhead? ((B + C + D + E) / (A + B + C + D + E)) * 100 %
The question given is incomplete. From the internet source I got it as follows:
Assume a five layer TCP/IP model. There are A bytes of application data. A B byte header is added at the transport layer, a C byte header is added at the internet layer and a D byte header is added at the network interface layer. The network interface layer also adds an E byte trailer. Express the answers to the questions below in terms of A, B, C, D, and E a. b. c. d.
How many total bytes are sent to the physical layer?
What percentage of the bytes sent to the physical layer is overhead?
How many total bytes are in the transport layer packet?
What percentage of the bytes in the transport layer packet is overhead?
Answer:Following is given the answer of above question part by part. The diagrams will help you to understand easily. I hope it will help you!
Explanation:Convert this ARMv8 machine code into ARMv8 Assembly Language instructions. Your final answers should use the register names, not the numbers (i.e. X2, not 2). Also, values which represent absolute addresses (if any) should be converted into the full 32-bit (or 64-bit) address. a. 0x0000000080001294: EB01001F.b. 0x0000000080001298: 5400006A.c. 0x000000008000129C 91000400.d. 0x00000000800012A0 17FFFFFD.e. 0x00000000800012A4 D61F03C0.
Answer:
Detailed answer is provided in the explanation section
Explanation:
Conversion of ARMv8 machine code into ARMv8 Assembly Language instructions:
ARMv8 machine code ARMv8 Assembly Language
0x0000000080001294 : EB01001F CMP X0,X1
0x0000000080001298 : 5400006A
0x000000008000129C : 91000400
0x00000000800012A0 : 17FFFFFD
0x00000000800012A4 : D61F03C0
Create a script that asks for the visitor's weight in pounds and his/her height in inches. The program should then calculate the body mass of the visitor. Display the weight, height, and body mass on the screen.
Answer:
weightPound = float(input("Enter your weight in pounds "))
heightInches = float(input("Enter your height in inches "))
weightKg = weightPound*0.453592
heightMeter = heightInches*0.0254
BodyMassIndex = weightKg/(heightMeter*heightMeter)
print("")
print("Your Weight in kilograms is: ")
print(weightKg)
print("Your Height in meters is: ")
print(heightMeter)
print("Your Body Mass Index is: ")
print(BodyMassIndex)
Explanation:
Above is a Python Script to accomplish the taskSee attached image for the program output.Observe that we used the formula weight/height*height to calculate the Body Mass IndexObserve also the conversion from pounds to Kilogram and inches to metersYou are given a class named Clock that has one int instance variable called hours.
Write a constructor for the class Clock that takes one parameter, an int, and gives its value to hours.
The question involves writing a constructor for a Clock class in computer programming. A constructor initializes the hours instance variable with the provided integer parameter, allowing the Clock object to represent time accurately in hours.
Explanation:The student's question pertains to writing a constructor for a class named Clock in computer programming. When designing a class in object-oriented programming (OOP), a constructor is used to initialize the class's fields. For the Clock class with an hours instance variable, the constructor will set the initial value of hours based on the integer parameter provided when a new Clock object is created.
public class Clock {The variable hours represents the number of hours, which can be related to time where '1 hour X 60 minutes' indicates that one hour consists of 60 minutes. The constructor ensures that hours are correctly assigned from the parameter to the instance variable when a Clock object is instantiated.
How is prior video game experience related to Top Gun scores? Select the correct conlcusion. a. Surgeons who have played some video games, but not intensely, do better at the Top Gun program. b. Surgeons who have never played video games do better at the Top Gun program. c. Surgeons who have done a lot of video gaming do better at the Top Gun program. d. Surgeons who have played video games for any amount of time perform the same at the Top Gun program e. as the surgeons who have never played video games.
Answer:
c. Surgeons who have done a lot of video gaming do better at the Top Gun program.
Explanation:
Video gaming is digital entertainment system that mimics real life or fiction action and sport events, controlled digitally by a user or player.
It gaming experience can be brain teasing and procedural. An individual with a prior knowledge of one game, can easily adapt to another and play better as long as the controls has being mastered. A surgeon with no prior knowledge in video gaming, would find it hard to play and would take a reasonable period of time to learn the game.
Craig wants to create a computing infrastructure that will allow developers within his company to build applications on a primarily internally hosted platform rather than outsourcing the infrastructure to a third party provider. However, he wants the ability to easily interact with AWS products. Which of the following could Craig use to do so?
a. Patchouli
b. Lavender
c. Eucalyptus
d. Basil
Eucalyptus is the correct choice for creating a privately hosted computing infrastructure with easy interaction with AWS products, offering compatibility through AWS APIs.
Craig is looking for a solution to create a computing infrastructure that allows for internal hosting but also provides ease of interaction with AWS services. The correct answer to this question is c. Eucalyptus. Eucalyptus is an open-source software platform that enables organizations to implement on-premises Infrastructure as a Service (IaaS) clouds with strong compatibility with AWS products.
It allows businesses to create private clouds that are interoperable with AWS, using AWS APIs to manage resources within the Eucalyptus private cloud. This means developers can use the same tools and skills they would for AWS, providing a seamless transition between the private cloud and AWS services when needed for scalability or additional services.
A contact list is a place where you can store a specific contact with other associated information such as a phone number, email address, birthday, etc. Write a program that first takes as input an integer N that represents the number of word pairs in the list to follow.Word pairs consist of a name and a phone number (both strings). That list is followed by a name, and your program should output the phone number associated with that name.
Final answer:
The student's question is about creating a Python program to map names to phone numbers using a dictionary, where after inputting contacts, the program can search for and retrieve phone numbers by name.
Explanation:
The student's question involves writing a program to manage a list of contacts, specifically to map names to phone numbers. To solve this task, one would typically use a data structure known as a dictionary in programming, where each name (key) is associated with a corresponding phone number (value). Below is a simple example of how one could write such a program in Python:
# Prompt for the number of contacts
N = int(input('Enter the number of contacts: '))
# Initialize an empty dictionary to store contacts
contacts = {}
# Loop to enter the contacts into the dictionary
for _ in range(N):
name, phone_number = input('Enter contact name and phone number: ').split()
contacts[name] = phone_number
# Prompt for the name to search
search_name = input('Enter a name to search for their phone number: ')
# Output the phone number for the given name
if search_name in contacts:
print(f'The phone number for {search_name} is {contacts[search_name]}')
else:
print('Name not found in contact list.')
This script takes the number of contacts as input, then iterates and adds each name-phone pair to the contacts dictionary. When the user enters a name to search, the program looks up the name in the dictionary and prints out the associated phone number if found.
How is the security of a firm's information system and data affected by its people, organization, and technology? Is the contribution of one of these dimensions any more important than the other? Why?
Explanation:
What happens is that the security of a company's information and data system can be affected by its people because it is the organization's own employees who can leak sensitive information, for their own benefit or for the benefit of others. That is why it is extremely relevant that organizations should limit the level of access that each user has to their information system.
Adequate training in the use of these systems is essential for employees to use it properly, to correct system failures, and for top management to have adequate knowledge in the preparation of system security plans.
It is the security policies that will prevent unauthorized access and greater control over the security of important data and information, so it is important that any company with a data information system keeps itself up to date with the software and implements necessary security resources, in a way maintain security and always update and analyze the operation of technological equipment.
A pair of single quotes ' will prevent the shell from interpreting any special character. True or False
Answer:
The answer is "True".
Explanation:
A single quote is a punching mark also known as an apostrophe located on the US Standard keyboard near the Enter button.
It's also known as a direct quote, such markings are also used in a news article for marking a statement. If a paragraph is a capital letter within the next quote, it is a function of a single quote. It refers to verbal marks. A couple of quotes will avoid a unique character becoming interpreted by only the shell, that's why the given statement is true.Discuss whether the redundant data should be addressed prior to beginning the wireless network architecture project, in coordination with the network architecture project, or after the project has been completed.
Answer:
Before the project
Explanation:
We must o administrate and elaborate a prioritization about this redundant data, if we started after, we're going to lose a general view about the data, and when we're talking about redundant data always must be prevention and not monitoring, because any network must have redundant data, if we try to fix a network or database with this problem, we could delete delicate data.
While multiple objects of the same class can exist, in a given program there can be only one version of each class. Group of answer choices True False
Answer:
True
Explanation:
OOP or object oriented programming is a structured programming process that relates or classify data into fields. It is based on creating objects with available data.
OOP deals with classes and objects. Classes are containers or a defined collection of objects. Objects are collections of data that identifies that object.
An example of class and object is man and John, where man is the class and John, the object.
There can only be one version of the class "man" in the program.
Write a function call it isEvenPositiveInt which takes an integer x and return true if x is positive and also even. Note isinstance(x, int) will return True if x is an integer
So
>>> isinstance (23, int)
True
>>> isinstance (12.34, int)
False
>>> isinstance (12.34, float)
True
Answer:
The program to this question as follows:
Program:
def isEvenPositiveInt(x): #defining method isEvenPositiveInt
if x>0: #checking number is positive or not
if x%2==0: #check true condition
return True #return value True
else:
return False #return value False
return False #return value False
print(isEvenPositiveInt(24)) #calling method and print return value
print(isEvenPositiveInt(-24)) #calling method and print return value
print(isEvenPositiveInt(23)) #calling method and print return value
Output:
True
False
False
Explanation:
In the above Python program, a method "isEvenPositiveInt" is defined, that accepts a variable "x" as its parameter, inside the method a conditional statement is used, which can be described as follows:
In the if block the condition "x>0" is passed, that check value is positive, if this condition is true, it will go to another if block. In another, if block is defined, that checks the inserted value is even or not, if the value is even it will return "true", otherwise it will go to the else part, that returns "false".Compute the sum of the values in data_array, instead of using the sum() function. To do this, you must "accumulate" a result, which means that you first create a variable, called data_array_sum, to hold the accumulating result and initialize it to 0. Then loop through your array, updating the accumulating data_array_sum by adding each data_array value as you go: data_array_sum = data_array_sum + data_array(i);
Answer:
public class TestClock {
public static void main(String[] args) {
int [] data_array = {1,2,3,5,3,1,2,4,5,6,7,5,4,3};
int data_array_sum =0;
for(int i=0; i<data_array.length; i++){
data_array_sum = data_array_sum + data_array[i];
System.out.println("Acumulating sum is "+data_array_sum);
}
System.out.println("Total sum is: "+data_array_sum);
}
}
Explanation:
Using Java programming language for this problem, we declare and initialize the array with this statement:
int [] data_array = {1,2,3,5,3,1,2,4,5,6,7,5,4,3};
Then created a variable to hold the sum values and initialize to zero:
int data_array_sum =0;
Using a For Loop statement we iterate through the array and sum up the values.
Discuss how a router knows where to send a message and then any experience you might have setting one up. In your opinion what are the challenges in establishing a network connection between two points over a large distance? Describe your own knowledge of this network configuration.
Answer:
Routing table and routing table population.
Explanation:
A router is an intermediate network device used to determine a good path for routing packets. It is a layer 3 device. Each interface of the router is a broadcast domain, that is, it represents a network.
It uses its routing table to find paths to a network. The router's routing table can populated (to add more routes) statically and dynamically.
To populate a routing table statically, use the format, "IP rout 'network address' 'subnet mask' 'next hop address'".
To populate dynamically, the protocols like RIP, OSPF, BGP, EIGRP etc, are used. The static routing is good for small networks because routing table population is manual while dynamic routing is good for large networks because it's routing table population is automatic.
True or false? (a) Main memory is volatile. (b) Main memory is accessed sequentially. (c) Disk memory is volatile. (d) Disk memory is accessed sequentially. (e) Main memory has greater storage capacity than disk memory. (f) Main memory has faster access time than disk memory.
Answer:
The answer to your question is true
Discuss the type of noise that is the most difficult to remove from an analog and a digital signal? Give reasons for your answer. How does error detection and correction work with wireless signals? Is data compressed when being transmitted? Describe the process.
Answer:
Explanation: One of the noise difficult to remove is "Flicker noise". This noise is a 1/f power spectral density that occurs in almost all electronic devices, which increases the overall noise level. It also shows up with variety of other effects, such impurities in conductive channels of electronic components.
Error detection and correction in wireless signals work by modulating the carrier signals of a waveform through radio transmission.
Data is not compressed when transmitted, rather data is broken into fragments known as packets and transmitted by method of packet switched networking and applying a protocol called "Transmission control protocol".
Final answer:
The answer discusses the challenges of removing noise from analog and digital signals, error detection and correction with wireless signals, and the data compression process.
Explanation:
Analog vs. Digital Signal Noise
Most Difficult Noise to Remove: The most challenging noise to remove from an analog signal is cumulative noise that builds up with each copy due to continuous variability. In digital signals, noise is less problematic as it can be regenerated and removed.
Error Detection and Correction with Wireless Signals: Error detection and correction in wireless signals involve adding redundant data to check for errors and correct them if detected.
Data Compression Process: Data is compressed before transmission by reducing redundant information, utilizing encoding schemes like lossless or lossy compression.
Can you think of any other disruptive or nontraditional ways of earning that you could use the Internet?
Explanation:
The internet is a tool that has revolutionized the way communication is carried out. As it is a dynamic tool with easy access for any user, it is possible to use different platforms or social media to realize disruptive or non-traditional forms of earnings.
Some of them could be the dissemination of links that would generate advertising for other companies, or the free dissemination in social media of services, and several other innovations that use the internet as the main means to manufacture an extra income, such as online teaching, advertising for third parties etc.
Write a program that accepts as input the mass, in grams, and density, in grams per cubic centimeters, and outputs the volume of the object using the formula: volume mass / density. Format your output to two decimal places.
Answer:
Program for the above question in python:
mass = float(input("Enter the mass in grams")) # It is used to take the mass as input.
density = float(input("Enter the density grams per cm cube")) # It is used to take the input for the grams.
print("Volume ={:.2f}".format(mass/density)) #It is used to print the Volume.
Output:
If the user inputs as 2.98 and 3.2, then it will results as 0.92.Explanation:
The above code is in python language, in which the first statement is used to take the inputs from the user for the mass and sore it into a mass variable.Then the second statement also takes the input from the user and store it into a density variable.Then the third statement of the code is used to print the volume up to two places using the above-defined formula.To write a program that calculates and outputs the volume of an object using mass and density, you need to collect the mass and density from the user as input and use the formula volume = mass / density. Format the output to two decimal places using a print or format function that specifies the decimal precision.
Explanation:To write a program that calculates and outputs the volume of an object using mass and density, you would need to collect the mass and density from the user as input. Then, you can use the formula volume = mass / density to calculate the volume. To format the output to two decimal places in most programming languages, you can use a print or format function that specifies the decimal precision. Here's an example in Python:
mass = float(input('Enter the mass in grams: '))This program prompts the user to enter the mass and density, calculates the volume using the formula, and then formats the output to two decimal places using the '{:.2f}' format specifier.
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CHALLENGE ACTIVITY 2.15.1: Reading and outputting strings. Write a program that reads a person's first and last names, separated by a space. Then the program outputs last name, comma, first name. End with newline. Example output if the input is: Maya Jones Jones, Maya 1 2 3 4 5 6 7 8 9 10 11 12 #include #include using namespace std; int main() { string firstName; string lastName; /* Your solution goes here */ return 0; } 1 test passed All tests passed Run
A program that reads a person's first and last names, separated by a space is shown below.
Given that;
Write a program that reads a person's first and last names, separated by a space.
Here's a solution in C++ that should do the trick:
#include <iostream>
#include <string>
using namespace std;
int main() {
string firstName;
string lastName;
// Prompt user for input
cout << "Please enter your first and last names, separated by a space: ";
cin >> firstName >> lastName;
// Output the last name, comma, first name
cout << lastName << ", " << firstName << endl;
return 0;
}
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Final answer:
To solve the programming exercise, include cin to read two strings representing the first and last name, then output them in 'Last name, First name' format using cout, followed by a newline.
Explanation:
To complete the coding exercise, you need to read in a person's first and last name and then display the last name followed by a comma, and then the first name. You can achieve this by using the cin to read the names and cout to output the result in the required format.
The program will look like this:
#include
#include
using namespace std;
int main() {
string firstName;
string lastName;
// Reading the first and last name
cin >> firstName >> lastName;
// Output in 'Last name, First name' format
cout << lastName << ", " << firstName << endl;
return 0;
}
Simply include the code segment within the "/* Your solution goes here */" section in your program. When you run this code, it will prompt you to input a first and last name, and after you provide it, the program will print out the last name, a comma, and then the first name followed by a newline as specified in the exercise.
n the case of the sentinel-controlled while loop, the first item is read before the while loop is entered. True False
Answer:
True
Explanation:
Sentinel-controlled repetition is often called indefinite repetition because the number of repetitions is not known before the loop begins executing. A sentinel value must be chosen that cannot be confused with an acceptable input value.
The pseudocode for a sentinel-controlled while loop look like this:
Prompt the user to enter the first inputInput the first value (possibly the sentinel)While the user has not yet entered the sentinel Execute some statement block Prompt the user to enter the next grade Input the next grade (possibly the sentinel)