37.What is the problem with the following code snippet?
double* acc_ptr;
*acc_ptr = 1000;
A.The acc_ptr variable is never initialized.
B.There is no problem.
C. The second statement assigns an integer to a pointer.
D.There is a compilation error.
Answers
The problem with the code snippet is the acc_ptr variable is never initialized. The correct answer is A.The acc_ptr variable is never initialized.
When a pointer is declared, it contains a memory address that is usually uninitialized. In the given code snippet, the variable "acc_ptr" is declared but not initialized. This means that it doesn't point to any valid memory location yet.
The second statement dereferences the pointer and attempts to store the value 1000 at the memory location it points to. However, since the pointer is uninitialized, it may point to a random memory location that the program is not allowed to access, which can result in undefined behavior, including a segmentation fault or memory corruption.
To fix this issue, the pointer should be initialized to a valid memory location before dereferencing it. For example, we can allocate memory using the "new" operator or assign the address of an existing variable to the pointer. The correct answer is A.The acc_ptr variable is never initialized.
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Related Questions
write a program that will create two classes; services and supplies. class services should have two private attributes numberofhours and rateperhour of type float. class supplies should also have two private attributes numberofitems and priceperitem of type float. for each class, provide its getter and setter functions, and a constructor that will take the two of its private attributes. create method calculatesales() for each class that will calculate the cost accrued. for example, the cost accrued for the services class is computed as numberofhours times rateperhour, and for the supplies class the cost will be numberofitems times priceperitem. each class should have a function str () that will return all the required information.
Answers
This program will help to manage and calculate the costs of services and supplies more efficiently, making it easier to keep track of expenses and manage budgets.
Here is a Python program that creates the two classes, Services and Supplies, as per your requirements:
```python
class Services:
def __init__(self, number_of_hours: float, rate_per_hour: float):
self.__number_of_hours = number_of_hours
self.__rate_per_hour = rate_per_hour
def get_number_of_hours(self) -> float:
return self.__number_of_hours
def set_number_of_hours(self, hours: float):
self.__number_of_hours = hours
def get_rate_per_hour(self) -> float:
return self.__rate_per_hour
def set_rate_per_hour(self, rate: float):
self.__rate_per_hour = rate
def calculate_sales(self) -> float:
return self.__number_of_hours * self.__rate_per_hour
def __str__(self):
return f"Number of Hours: {self.__number_of_hours}, Rate per Hour: {self.__rate_per_hour}"
class Supplies:
def __init__(self, number_of_items: float, price_per_item: float):
self.__number_of_items = number_of_items
self.__price_per_item = price_per_item
def get_number_of_items(self) -> float:
return self.__number_of_items
def set_number_of_items(self, items: float):
self.__number_of_items = items
def get_price_per_item(self) -> float:
return self.__price_per_item
def set_price_per_item(self, price: float):
self.__price_per_item = price
def calculate_sales(self) -> float:
return self.__number_of_items * self.__price_per_item
def __str__(self):
return f"Number of Items: {self.__number_of_items}, Price per Item: {self.__price_per_item}"
```
This program defines the Services and Supplies classes with their respective private attributes, constructors, getter and setter methods, calculate_sales() methods, and __str__() methods.
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__________ refers to a variety of software applications that analyze an organization's raw data and obtain useful insights from it.
Answers
Business Intelligence or data analysis refers to a variety of software applications that analyze an organization's raw data and obtain useful insights from it.
Business intelligence (BI) is a data analysis is used by organizations to analyze data and hence gain insights on overall business performance so as to help the organization make good business decisions.
It helps organizations to increase revenue and efficiency thereby being more competitive than other business organizations.
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Open the gallery10-1.js file and below the code that creates and populates the captions array, declare the htmlCode variable, setting its initial value to an empty text string.
Create a for loop with a counter variable i that goes from 0 to 13 in increments of 1. Each time through the for loop, add the following code to the value of the htmlCode variable:
caption_i
where i is the value of the counter variable and caption_i is the value from the captions array with index number i.
After the for loop, change the inner HTML of the document element by the ID gallery to the value of the htmlCode variable.
Answers
The code has been written in CSS as is done in the space below
How to write the code// Code that creates and populates the captions array
var captions = ["Caption 1", "Caption 2", "Caption 3", "Caption 4", "Caption 5", "Caption 6", "Caption 7", "Caption 8", "Caption 9", "Caption 10", "Caption 11", "Caption 12", "Caption 13", "Caption 14"];
// Declare htmlCode variable and initialize it to an empty string
var htmlCode = "";
// Create a for loop to generate HTML code for each caption
for (var i = 0; i < 14; i++) {
htmlCode += "<div class='captionStyle'>" + captions[i] + "</div>";
}
// Set the innerHTML of the gallery element to the generated HTML code
document.getElementById("gallery").innerHTML = htmlCode;
In this code, we create a for loop that iterates over the captions array and generates HTML code for each caption using the current index of the array. The generated code is appended to the htmlCode variable at each iteration of the loop. Finally, the innerHTML of the gallery element is set to the generated HTML code.
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----------------------------
Please summarize into 1.5 pages only
----------------------------
Virtualization
Type 2 Hypervisors
"Hosted" Approach
A hypervisor is software that creates and runs VM ins
Answers
Virtualization: It is a strategy of creating several instances of operating systems or applications that execute on a single computer or server. Virtualization employs software to reproduce physical hardware and create virtual versions of computers, servers, storage, and network devices. As a result, these virtual resources can operate independently or concurrently.
Type 2 Hypervisors: Type 2 hypervisors are hosted hypervisors that are installed on top of a pre-existing host operating system. Because of their operation, Type 2 hypervisors are often referred to as "hosted" hypervisors. Type 2 hypervisors offer a simple method of getting started with virtualization. However, Type 2 hypervisors have some limitations, like the fact that they are entirely reliant on the host operating system's performance.
"Hosted" Approach: The hosted approach entails installing a hypervisor on top of a host operating system. This hypervisor uses hardware emulation to create a completely functional computer environment on which several operating systems and applications can run concurrently. In general, the hosted approach is used for client-side virtualization. This method is easy to use and is especially useful for the creation of virtual desktops or the ability to run many operating systems on a single computer.
A hypervisor is software that creates and runs VM instances: A hypervisor, also known as a virtual machine manager, is software that creates and manages virtual machines (VMs). The hypervisor allows several VMs to execute on a single physical computer, which means that the computer's hardware can be utilized more efficiently. The hypervisor's role is to manage VM access to physical resources such as CPU, memory, and I/O devices, as well as to provide VM isolation.
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IN NEED OF HELP WITH ELECTRICITY & CIRCUITS PLEASE!!
6. Describe the energy transformations that occur in a circuit that includes a battery, wire, and an
incandescent light bulb.
7. How can you determine if a circuit is a series circuit or a parallel circuit?
8. What changes might you make to a circuit in order to slow the flow of electrical energy?
which contains all the circuit
9. Many electronic devices use a(n)
parts in a miniature form.
10.
design electrical circuits for larger power grids and for all kinds of devices
such as phones, televisions, robots, electric cars, and computers.
Answers
Answer:
wanna work on this togetherrrrrrre I need this question tooo
Select the correct answer.
Which of these students is using interactive media?
Amelia is leafing through a fashion magazine looking at the pictures of the models.
Jaden is watching a music video with subtitles of the lyrics on his new smart phone.
Kristen is watching a film on her tablet.
Roy is going through a tutorial on his laptop that explains a do-it-yourself project.
A. Amelia
B. Jaden
C .Kristen
D. Roy
Answers
Answer:
Roy
Explanation:
Roy is interacting with the tutorial where he is actually doing work along with it, which would be him interacting with the media.
5.16 LAB: Output numbers in reverse
Answers
Select all the correct answers.
Daniel is an app developer. He is working on an app for a retail store selling sports goods. The store manager explains that he would like customers to be alerted whenever there is a sale at the store. Interested customers would also be able to send an immediate response and book items they like from their mobile devices. Which statements about the use of the app are true?
It will make shopping easy.
It will enable quick transactions.
It will enable safety.
It will manage health.
It will save time.
Please I really need it because it will decides my grade.
Answers
Answer:
it will make shopping easy
Explanation:
The app will allow customers to shop with their phone instead of locating to the store. It also keeps the customers informed of events and sales for shopping.
In C++ language A) Design an algorithm for combining two sorted contiguous lists into a single sorted contiguous list.
B) Design an algorithm for reversing the order of a linked list.
Answers
In C++ language Design an algorithm for combining two sorted contiguous lists into a single sorted contiguous list.
This algorithm works by iterating through the input lists simultaneously, comparing the values at the current positions and adding the smaller value to the new list. By the end of the process, the new list will contain all the elements from both input lists in sorted order.
A) Algorithm for combining two sorted contiguous lists into a single sorted contiguous list:
Create a new empty list to store the combined sorted list.
Initialize two pointers, one for each input list, pointing to the first elements of the respective lists.
Compare the values at the two pointers and add the smaller value to the new list.
Move the pointer of the list from which the smaller value was added to the next element.
Repeat steps 3-4 until one of the input lists reaches its end.
Add the remaining elements of the non-empty list to the new list.
Return the new list as the combined sorted list
B) Algorithm for reversing the order of a linked list:
Initialize three pointers: current, previous, and next. Set current to the head of the linked list and previous and next to NULL.
Traverse the linked list using the current pointer.
Inside the loop, set the next pointer to the next node of the current node.
Update the next pointer of the current node to point to the previous node.
Move the previous pointer to the current node.
Move the current pointer to the next node.
Repeat steps 3-6 until the current pointer reaches NULL.
Set the head of the linked list to the previous pointer, which will be the new first node after reversing.
This algorithm reverses the order of the linked list by modifying the pointers of each node. By updating the next pointer of each node to point to its previous node, we effectively reverse the direction of the links. Finally, we update the head of the linked list to point to the last node (previously the first node) after reversing.
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Python - Write a program to print the multiplication table as shown in the image by using for loops.
Answers
Answer:
Explanation:
The following python code creates the multiplication table for 10 rows and 10 columns. This code uses nested for loops to traverse the table and print out the product of each multiplication. The image attached shows the output of the code.
for x in range(1, 11):
for y in range(1, 11):
z = x * y
print(z, end="\t")
print()
The program to print the multiplication table as shown in the image by using for loops is in the Source code.
The Python program that uses nested for loops to print the multiplication table:
Source code:
for i in range(1, 11):
for j in range(1, 11):
if i == 1 and j == 1:
print("x", end=" ")
elif i == 1:
print(j, end=" ")
elif j == 1:
print(i, end=" ")
else:
print(i * j, end=" ")
print()
This program will iterate through the values of `i` from 1 to 10 and `j` from 1 to 10. It checks for special cases when `i` or `j` is equal to 1 to print the headers (x and the numbers 1 to 10).
For other cases, it calculates the multiplication of `i` and `j` and prints the result.
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The physical things you can touch that make up a computer
Answers
The physical things you can touch that make up a computer are monitor, mouse, keyboard, and CPU.
What is computer?A computer can be defined as an electronic device which accepts data, processes data and brings out information known as results.The computer is used to type and edit different forms of documents like word, PDF and Excel.
A computer can be used to perform business transactions online. It is used by both sellers and buyers to market and purchase product respectively.A computer can be used to play music, watch movies and play games.
Therefore, The physical things you can touch that make up a computer are monitor, mouse, keyboard, and CPU.
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Drag the tiles to the correct boxes to complete the pairs.
Match the testing tools to their use.
Selenium
JMeter
load testing tool
functional testing tool
test management tool
defect-tracking tool
QTP
web browser automation tool
Quality Center
Bugzilla
Answers
Answer:
JMeter is a functional testing tool
HELP
Through photographs, we can represent concepts and ideas. From the following list of concepts, choose 10.
You should display the concept or idea in some way within your photograph. For example, if one concept was "Blue," you might photograph the color blue in the sky, a blue item of clothing, a person with a sad expression (which is sometimes described as "having the blues"), and so on. Be creative!
Happy
Pink
Chair
Music
Cold
Looking out
Vegetable
School
Smile
Love
Shadow
Up
Newness
Water
Red
Season
Door/Gate
Hand
Drink
Words
Treasure
Oldness
Natural
Beauty
Little
Part Two
Select your five favorite photographs to create a presentation on a computer. For each photograph, identify the concept that you are presenting and how you have shown this concept in the photograph.
Answers
Answer:
You need to pick 10 concepts from the list and take/pick a picture you think shows the concept. You then pick 5 of your favorites from the 10 and put them on a slideshow, explaining what concept it is and how it shows it.
Explanation:
So if I did vegetable, I would take a good picture of a carrot. Then, if I picked it as one of my five favorites, I would put it on a presentation and say, "This displays the concept of vegetables. My picture shows this concept because carrots are a type of vegetable."
What is it called when servers on the Internet supply applications as a service, rather than a product
Answers
Answer:
cloud computing
Consider the following code using the posix pthreads api:
thread2.c
#include
#include
#include
#include
int myglobal;
void *thread_function(void *arg) {
int i,j;
for ( i=0; i<20; i++ ) {
j=myglobal;
j=j+1;
printf(".");
fflush(stdout);
sleep(1);
myglobal=j;
}
return null;
}
int main(void) {
pthread_t mythread;
int i;
if ( pthread_create( &mythread, null, thread_function,
null) ) {
printf(ldquo;error creating thread.");
abort();
}
for ( i=0; i<20; i++) {
myglobal=myglobal+1;
printf("o");
fflush(stdout);
sleep(1);
}
if ( pthread_join ( mythread, null ) ) {
printf("error joining thread.");
abort();
}
printf("\nmyglobal equals %d\n",myglobal);
exit(0);
}
in main() we first declare a variable called mythread, which has a type of pthread_t. this is essentially an id for a thread. next, the if statement creates a thread associated with mythread. the call pthread_create() returns zero on success and a nonzero value on failure. the third argument of pthread_create() is the name of a function that the new thread will execute when it starts. when this thread_function() returns, the thread terminates. meanwhile, the main program itself defines a thread, so that there are two threads executing. the pthread_join function enables the main thread to wait until the new thread completes.
a. what does this program accomplish?
b. here is the output from the executed program:
$ ./thread2
..o.o.o.o.oo.o.o.o.o.o.o.o.o.o..o.o.o.o.o
myglobal equals 21
is this the output you would expect? if not, what has gone wrong?
Answers
The thing which the given program accomplishes is that it creates a method, declares variables, and executes commands if they meet the conditions in the code.
What is a Conditional Statement?This is a type of statement that executes a line of code if a condition is not met.
Some types of conditional statements are:
IF statementIF-ELSE statementNested If-else statement.If-Else If ladder.Switch statement.No, that is not the desired output because the integer should be less than 20.
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list 10 inventions and innovations
Answers
Answer:
The creation of a product or introduction of product for the first time is referred as Inventions.
If someone makes significant contribution to the existing product it is referred as Innovations.
The Ten Inventions are:
AirplaneBulbCompassClock TelephonePersonal computerPrinting pressAutomobileCalendarWaterwheelThe Ten Innovations are:
Paper CurrencySteelTransistorMagnifying LensesTelegraphAntibioticsTelevisionMicroprocessorSmart PhoneMicroscopequestion 6a data analyst sorts a spreadsheet range between cells k9 and l20. they sort in ascending order by the first column, column k. what is the syntax they are using?
Answers
When the data analyst sorts a spreadsheet range between cells K9 and L20 and sorts in ascending order by the first column, Column K, the syntax they are using is the SORT Function. Syntax for the SORT function is given below:SORT(range, sort_column, is_ascending, [sort_column2, is_ascending2], ….)
In the above syntax, the first argument is the range, which is a contiguous range or an array to sort. The second argument is sort_column, which indicates which column to sort by. The third argument is a boolean value, is_ascending, which is used to sort the range in ascending order. The fourth argument is an optional argument, sort_column2, which can be used to sort the range by a second column if the values in the first column are equal. The fifth argument is another optional argument, is_ascending2, which can be used to indicate whether the range should be sorted in ascending or descending order.
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which type of aws storage is ephemeral and is deleted when an amazon ec2 instance is stopped or terminated? a. amazon elastic block store (amazon ebs) b. amazon ec2 instance store c. amazon elastic file system (amazon efs) d. amazon s3
Answers
Amazon EC2 instance store type of aws storage is ephemeral and is deleted when an amazon ec2 instance is stopped or terminated.
What is the purpose of Amazon S3?An object storage service called Amazon Simple Storage Services (Amazon S3) provides performance, security, and scalability that are unmatched in the market. Any quantity of data can be stored and retrieved using Amazon S3 anywhere at time, from any location.
Amazon S3: Is it a database?One of the main types of Database systems used for gathering large amounts of dynamic, unstructured, or semi-structured data is AWS S3, which is a key-value store. A distinct key, that can be any string, is used to refer to uploaded objects. The level of versatility offered by this high-level, generic storage structure is nearly endless.
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create a procedure that takes 2 parameters, a string that you get from a user input and an int. Make the procedure print the string the number of times the int parameter gives and call the procedure???
Answers
Answer:
Here is kind of an example: var greeting1 = "Hello, Jackson, how are you?";
println(greeting1);
var greeting2 = "Hello, Mr. H, how are you?";
println(greeting2);
var greeting3 = "Hello, Stranger, how are you?";
println(greeting3);
Explanation:
virtual conections with science and technology. Explain , what are being revealed and what are being concealed
Answers
Some people believe that there is a spiritual connection between science and technology. They believe that science is a way of understanding the natural world, and that technology is a way of using that knowledge to improve the human condition. Others believe that science and technology are two separate disciplines, and that there is no spiritual connection between them.
What is technology?
Technology is the use of knowledge in a specific, repeatable manner to achieve useful aims. The outcome of such an effort may also be referred to as technology. Technology is widely used in daily life, as well as in the fields of science, industry, communication, and transportation. Society has changed as a result of numerous technological advances. The earliest known technology is indeed the stone tool, which was employed in the prehistoric past. This was followed by the use of fire, which helped fuel the Ice Age development of language and the expansion of the human brain. The Bronze Age wheel's development paved the way for longer journeys and the development of more sophisticated devices.
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For questions 1-3, consider the following code:
x = int(input("Enter a number: "))
if x != 7:
print("A")
if x >= 10:
print("B")
if x < 10:
print("C")
if x % 2 == 0:
print("D")
What is output if the user types in 10? Click all that apply.
Answers
Answer:
BD
Explanation:
when setting image viewer preferences, how do you ensure that your changes do not impact users with a different windows login?
Answers
To access your information, select Start > Settings > Accounts. Select a file > Browse files under "Adjust your photo" to choose an already-existing image. Instead, if your device has a camera, choose Take a picture > Open camera to snap a fresh picture.
How can user permissions be disabled?Click the user's name by going to Dashboard > User Management > Users. To remove a permission, select the Permissions view, then click the trash can icon next to it.
What Windows command-line programme is used to manage the permissions of the NTFS file system?Windows comes with a built-in command-line utility called iCacls that reports on NTFS access permissions.
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the process of taking components from data sources and analytics platforms to create a more user-friendly experience that makes finding critical insights easier is called
Answers
The process of taking raw data from various sources and transforming it into useful and actionable information is known as data visualization.
Data visualization refers to the process of converting complex data sets and information into graphical representation, using various tools and techniques, in order to make it easier for the users to understand and analyze. It involves taking data from various sources and analytics platforms, cleaning and transforming it, and finally, presenting it in a way that is easily accessible and understandable for the end user. This can be done through the use of charts, graphs, maps, and other graphical representations that provide an intuitive, interactive, and engaging experience to the user. Data visualization is an essential tool in the business world, as it helps organizations make informed decisions, track performance, and identify key trends and patterns in their data.
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a host with an ip address 192.168.10.3/24 needs to send a packet to a remote host with address 192.168.20.40. no default gateway has been configured for the host, but packets are still reaching the remote host. why might this be the case?
Answers
Computers on one network are connected to computers on another network via a default gateway. The network cannot communicate with the outside world without it.
What is host gateway? A router that serves as both a point of entry and exit for a network. Because all data must go via the gateway or speak with it before being routed, gateways act as the entry and departure points of a network. Only traffic between nodes on the same local area network (LAN) segment does not pass through at least one gateway in the majority of IP-based networks. Devices from different networks can communicate with one another using a default gateway. The default gateway is used when a computer requests a web page, for instance, before leaving the local network (LAN) and connecting to the internet.To learn more about gateway refer :
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The Installer encountered an error that caused the installation to fail. Contact the software manufacturer for assistance.
Answers
When you trying to install a PKG installer package, sometimes you have run into an issue where it refuses to finish installing. The issue is "The Installer encountered an error that caused the installation to fail.
Contact the software manufacturer for assistance." The solutions for that issue is:
Go to application menuSet the log window to "show all logs"Issue is a term that have many perseption.
Issue is something that people are thinking about and talking about. for example : an important subject or topicThe act of giving something to people to be used : the act of issuing something or officially making something availableIssue also can be described as a problem or concernHere you can learn more about issue in the link brainly.com/question/1674717
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Harry’s Shoe Store has noticed a significant increase of revenue of $123,000. The manager has also determined that the total expenses equal to $128,000. Will this business net a profit or loss? _______ How much of a profit or loss? ________
Answers
Answer: Loss by $5,000
Explanation:
As you see, the loss is greater than profit. Simply subtract loss-profit
Write a function that can find the largest item in the array and returns it. The function takes the array as an input. From the main function, send initial address, type and length of the array to the function. You can use registers to send the data to the function. Also return the largest item in the array using EAX register. You can use the following array for this problem. Array DWORD 10, 34, 2, 56, 67, -1, 9, 45, 0, 11
Answers
Answer:
var newArray = array.OrderByDescending(x => x).Take(n).ToArray();
Explanation:
Write the find_index_of_largest() function (which returns the index of the largest item in an array). Eg: a = [1 3 5 2 8 0]; largest = find_index_of_largest ( a ); largest = 5; Question: Write the
Choose the correct term to complete the sentence.
AUPs are also known as ______.
email policies
electronic conduct
standard policies
company policies
Answers
Answer:
Explanation:
standard policies
AUPs are also known as company policies. Check more about AUP below.
What is AUP?This is known to be the acceptable use policy (AUP). This policy pertains to the use of a document and it tells one the practices that a user must adhere to for one to be able to access to a network or the Internet.
Conclusively, Note that a lot of businesses and educational facilities do need that employees or students promised or sign a form of acceptable use policy before they are given network ID and thus it is company policy.
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A data center needs to ensure that data is not lost at the system level in the event of a blackout. Servers must stay operable for at least an eight-hour window as part of the response and recovery controls implemented. Which redundancy effort should be put in place to ensure the data remains available?
Answers
Answer: UPS
Explanation:
The redundancy effort that should be put in place to ensure the data remains available is the Uninterruptible Power Supply(UPS).
Uninterruptible Power Supply (UPS) is necessary in the provision of battery backup power when there's drop or stoppage in the flow of electricity. With regards to the question, it'll ensure that data is not lost at the system level in the event of a blackout.
What system do businesses use to ensure products work correctly?
A. Access control
B. File management
C. Quality control
D. Quality procedures
Answers
Answer:
i believe it should be quality control
Explanation:
it kind of says it in the name quality control makes sure that the products are working and functioning correctly