Zsh (short for Z Shell) is a Unix shell and command-line interpreter that is designed to be an interactive login shell and command-line interface. It is an alternative to the more common Bash shell that is used by default on many Unix-based systems, including macOS.
What is zsh in mac?
changing the default interactive-shell to zsh on your Mac, you need to repeat the given steps:
Install zsh: If you haven't installed zsh already, you can do so using Homebrew, a package manager for macOS.Now, Open the Terminal app and use the command given:brew install zsh
Verify the path to zsh: Once zsh is installed, you can verify the path to zsh by running the following command in Terminal:which zsh
Change the default shell: To change the default shell to zsh, you need to edit the /etc/shells file to include the path to the zsh binary. use command: sudo nano /etc/shellsAdd zsh to /etc/shells: In the nano text editor, add the path to the zsh binary to the end of the file, on a new line. For example, if the path to zsh is /usr/local/bin/zsh, you would add the following line to the end of the file:/usr/local/bin/zsh
Save and exit: Once you have added the path to zsh to /etc/shells, save the file by pressing Ctrl+O, then exit nano by pressing Ctrl+X.Change the default shell: To change the default shell to zsh, run the following command in Terminal:chsh -s /usr/local/bin/zsh
Replace /usr/local/bin/zsh with the path to the zsh binary that
you obtained in step 2.
Log out and log back in: Finally, log out of your macOS user account and log back in to apply the changes. You should now have zsh as your default interactive shell.To know more about zsh shell, visit: https://brainly.com/question/30528402
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looking at the following, which answer best shows the software characteristics that are used to determine the scope of a software project?
The answer "Context, information objectives, function and performance" best shows the software characteristics that are used to determine the scope of a software project.
These characteristics help to define the boundaries and requirements of the software project. Context refers to the environment in which the software will be used, including the hardware, software, and other systems it will interact with. Information objectives describe what the software is intended to accomplish and the information it will process. Function defines the features and capabilities of the software, while performance outlines the speed and efficiency requirements of the software. All of these characteristics are important in determining the scope of a software project and ensuring that it meets the needs of its users.
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A technician is troubleshooting a company cell phone that is overheating.
Which of the following is the FIRST action the technician should perform?
Determine whether the user has been streaming data.
Close all applications.
Determine whether the battery is warped or swollen.
Update the operating system.
A technician is troubleshooting a company cell phone that is overheating. The first action that the technician should perform is determining whether the battery is warped or swollen.
In order to fix broken components or procedures on a machine or system, troubleshooting is a type of problem solution. It is a methodical, logical search for the cause of a problem in order to fix it and restore the functionality of the process or product.
It is very normal for a phone to get overheated due to overuse. Or if it is running for quite a long time.
In such cases, what we should do is to Turn off all the other applications that are running in the background. If the problem still continues to try to shut down your phone and re-start it.
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you work for a company that offers their services through the internet. it is critical that your website performs well. as a member of the it technician staff, you receive a call from a fellow employee who informs you that customers are complaining that they can't access your website. after doing a little research, you have determined that you are a victim of a denial-of-service attack. as a first responder, which of the following is the next step you need to perform in response to the security incident?
Pilihan jawaban
A. Prevent such an incident from occurring again.
B. Investigate how the attack occurred.
C. Contain the problem.
D. Hire a forensic team to gather evidence.
Our initial course of action in the current circumstance would be to (B) look into how the attack happened.
What is a denial-of-service attack?The term "denial of service" or "DoS" refers to a class of cyberattacks whose main objective is to make a service unavailable.
Since these are usually covered by the media, the DoS attacks that are most well-known are those that target well-known websites.
Flood assaults happen when the server cannot handle the amount of traffic coming into the system, which causes it to sluggishly and eventually cease.
Buffer overflow attacks, the most frequent DoS attack, are examples of well-known flood assaults.
So, in the given situation our first step would be to investigate how the attack occurs.
Therefore, our initial course of action in the current circumstance would be to (B) look into how the attack happened.
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what are the uses of computer hardware and software
Swimming coach Yuki prepared a presentation to encourage more people to swim for exercise.
Swimming provides a better workout than walking
Which three ideas can she use to support her thesis
Swimming works practically all of the body's major muscle groups, giving you a full-body workout. Swimming concurrently exercises the upper body, core, and legs, as opposed to walking, predominantly uses the lower body.
Swimming is a sort of exercise.Cardio is a term for physical activity that benefits the heart, lungs, and circulatory system. This kind of exercise is a part of a comprehensive exercise program that includes swimming.
Is swimming a talent or a skill?It really is a talent. We are not inferior because of these abilities. Instead, they add to our distinctiveness and can be included in the growing list of benefits that this sport provides for us. The most crucial lesson to learn from this is that swimmers are gifted individuals.
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2.suppose that you are employed as a data mining consultant for an internet search engine company. describe how data mining can help the company by giving specific examples of how techniques, such as clustering, classification, association rule mining, and anomaly detection can be applied.
Data mining is the process of retrieving valuable information from enormous amounts of data that have been stored in databases, data warehouses, or other information storage facilities.
What is data mining?Large data sets are processed through in data mining in order to find patterns and relationships that may be used in data analysis to better solve business challenges.The use of data mining techniques and technologies allows businesses to predict future trends and make better business decisions.
The company's search engine can be enhanced by using any of the different data mining features available.
1. Clustering is the technique of classifying a collection of tangible or intangible objects into groups of related ones. According to the growing intraclass similarity and decreasing interclass similarity concept, the items are grouped. Clustering can be used in the context of a search engine to present results that include the keyword entered in the "search" box as well as related results.
For example: When you type "paintbrush" into the search box, the search engine should show you results that include the terms "paint," "canvas," "paint," and "easel," as well.
2. Classification is the process of identifying a collection of functions that characterize and separate data classes or concepts, and then utilizing these functions to infer the class of an object whose class label is unknown. Clustering analyzes data objects without referring to a known class label, whereas classification studies class-labeled data objects. This implementation is more of an internal one.
For example: The search engine might offer a list of research papers connected to a keyword. This is accomplished by applying a classification algorithm to the keyword after applying classification rules, decision trees, or any other classification technique to a set of data whose list of research papers is known.
3. Association rule mining is the process of identifying association rules that highlight attribute-value patterns that commonly co-occur in a set of data. Based on the user-entered terms, a search engine may add more details to its results.
For example : A person looking to purchase a large-screen TV online might also be considering a new home theater system. The search engine might stay one step ahead of the user by returning results for both TV and the home theater system.
4. Anomaly identification - Data items that deviate from the data's typical behavior are known as anomalies. Anomaly detection is the analysis of anomalies. An anomaly has greater significance than the rest of the data in situations like fraud detection. Search engines can utilize anomaly detection to prevent showing results that are unrelated to the keyword they were asked to find.
For example : if a user searches for "heart attack," anomaly detection would prevent the display of "attack on China," which is unrelated to the topic of the search and an outlier in this context.
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Explain the multiplicities between the following two classes. Cash Receipt (1..*) ---- (1..1) Customer
The (1..1) means each cash receipt is from one and only one customer.
The statement that "(1..1) means each cash receipt is from one and only one customer" is true.
In the given example, the class "Cash Receipt" has a multiplicity of "1..*" with the class "Customer". This means that each instance of the "Cash Receipt" class is associated with one or more instances of the "Customer" class. In other words, a cash receipt can be associated with one or many customers.
On the other hand, the class "Customer" has a multiplicity of "1..1" with the "Cash Receipt" class. This means that each instance of the "Customer" class is associated with exactly one instance of the "Cash Receipt" class. In other words, each customer has exactly one cash receipt associated with them.
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This question is about assembly instructions and operand modes. For each of the following descriptions, give a single x86-64 assembly instruction and operands to implement the described semantics. Example: Copy the low-order 4 bytes of register %rdi into the low-order 4 bytes of register %rdx.
movl %edi, %edx
a. Load 8 bytes from memory beginning at the address stored in %rdi, into %rax.
b. Store the low-order 2 bytes of %rcx into memory 16 bytes past the address stored in %rsi.
c. Multiply the 8-byte value in %rax by 8. Do not use mul or imul.
d. Multiply the 8-byte value in %rdx by 9, subtract 14, and put the result in %rsi.
movq (%rdi),%rax Leaq (%rax,%rax,4),%rax b. movw%cx, 16(%rsi) c. Imulq D $14,%rdx moveq%rdx,%rsi subq $9,%rdx.
An assembly instruction is what?An assembly instruction is a command that tells the assembler what to do when assembling a source module. Examples of assembler instructions include declaring data constants, allocating storage space, and specifying the source module's end.
Which are the four fundamental components of instruction in assembly language?Its four components are label, memory, operand, and remark; not all of them are present on every line. The first component, in this case LOOP, is a label—a term the programmer created to designate this place in the program. The values of the location at which this command is stored will be used to set it.
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XML-based vocabularies, such as XBRL, do not allow meaningful comparisons to be made of data across many organizations.
T or F
False, XML-based vocabularies, such as XBRL, does allow meaningful comparisons to be made of data across many organizations.
What are XML-based vοcabularies?XML-based vοcabularies are sets οf rules and standards that define hοw tο structure and represent data using the Extensible Markup Language (XML). XML is a markup language that allοws users tο define their οwn custοm tags and attributes tο describe the structure and cοntent οf data.
XML-based vοcabularies are used in many applicatiοns, such as web services, data exchange, and data stοrage. They enable the exchange οf data between different systems and applicatiοns, regardless οf the prοgramming languages and platfοrms used.
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1.18 LAB: Input and formatted output: Right-facing arrow
Given two input integers for an arrow body and arrowhead (respectively), print a right-facing arrow.
Ex: If the input is:
0 1
the output is:
1
11
00000111
000001111
00000111
11
1
The code is given below.
What do you mean by Python Programming?Python is a high-level, interpreted programming language that was first released in 1991. It is named after the Monty Python comedy group and was created by Guido van Rossum. Python is known for its readability, simplicity, and ease of use. It supports multiple programming paradigms, including procedural, object-oriented, and functional programming.
Here's a solution in Python to the problem statement:
def print_arrow(body, head):
for i in range(1, body + 1):
print("1" * i)
for i in range(head, 0, -1):
print("1" * i)
body = int(input("Enter body size: "))
head = int(input("Enter head size: "))
print_arrow(body, head)
This code takes two integers as input, representing the size of the arrow body and arrowhead. The function print_arrow takes these two values as parameters and uses nested for loops to print the arrow. The first for loop prints the body of the arrow, while the second for loop prints the head of the arrow.
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In a split-MAC architecture, real-time functions such as encryption are handled in which of the following network entities? a. A lightweight AP b. An access layer switch c. A wireless LAN controller d. A distribution layer switch
The LAP-WLC division of labor is known as a split-MAC architecture, where the normal MAC operations are pulled apart into two distinct locations.
What is Split Mac architeture?This occurs for every LAP in the network; each one must boot and bind itself to a WLC to support wireless clients. The WLC becomes the central hub that supports a number of LAPs scattered about in the network.
How does an LAP bind with a WLC to form a complete working access point. The two devices must use a tunneling protocol between them, to carry 802.11-related messages and also client data.
Remember that the LAP and WLC can be located on the same VLAN or IP subnet, but they do not have to be.
Therefore, The LAP-WLC division of labor is known as a split-MAC architecture, where the normal MAC operations are pulled apart into two distinct locations.
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describe any of these terms: literal value, null value, empty string, concatenate, append, escape sequence, string literal, verbatim string literal, and nullable data type. g
You can combine two statements that evaluate character data types or to numeric data types by using the concatenation operator . While "append" adds what you specify to whatever may already be there, "concatenate" puts two specific objects together.
Constants that are literal values are exact values (alphabetic or numeric). The string "John Smith" and the number 100 are examples of constants that you can use in expressions.
A null string has no value at all, while an empty string is a string object with zero length. An empty string is denoted by the symbol "". It consists of a string of 0 characters. Null is used to represent a null string.
"Escape sequences" are string combinations of characters that include a backslash before a letter or a group of digits.
You must utilize escape sequences to represent a newline character, a single quotation mark, and several other characters in a character constant.
A group of characters from the source character set that are encased in double quotation marks is known as a "string literal" ( " " ). Characters that together make up a null-terminated string are represented using string literals.
You must code at sign symbol before the string's starting quote in order to use a verbatim string literal. Between the opening and closing quotations, you can then type backslashes, tabs, and newline characters. For instance, you can insert one or more newline characters by pressing the Enter key.
Some computer languages have what are known as nullable types, which allow values to be set to the special value NULL rather than the data type's standard range of possible values.
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if a file exists in a directory and contains data, when an ofstream is used to write data into the file .
If an ofstream is used to write data into an existing file, the existing data in the file will be overwritten by the new data.
Using an ofstream object to write data into an existing file is an easy and straightforward way to overwrite the existing data in the file. This can be done by simply opening the file with the ofstream object, writing the new data, and then closing the file.
The existing data will then be replaced by the new data. This is useful in a variety of scenarios, such as when an application needs to update a log file or if a user needs to quickly overwrite the contents of a file.
Ofstream objects can also be used to append data to an existing file rather than replacing the data, by opening the file in append mode.
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An application lists all the files and subdirectories in its web folder. This indicates which of the following weaknesses on the application?
a. Directory Listing
b. Cross Site Scripting
c. Session Hijacking
Directory Listing is the correct response. The web folder of an application contains a list of all the files and subdirectories. This reveals application flaws with Directory Listing.
a subfolder is a computerised organisational directory that is nested inside another directory. Sections of your main website can be divided using subdirectories, which are content subfolders. Each subfolder shares the top-level domain (TLD) of your website, and its URL structure always follows the root domain. Examples of subdirectories include all of the following: example.com/shop. The subdirectory appears in a URL after the root directory or domain name. Therefore, hubspot.com/pricing might be a subfolder URL. Alternatively, it may be something more challenging like pricing/sales.hubspot.com. Typically, a single subdirectory within this tree structure is referred to as a directory or subdirectory, respectively.
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What are the goals of checking and rechecking the quality of your data during data validation?
During data validation, it's important to double-check your data's quality to make sure it's dependable, accurate, comprehensive, and consistent.
You can find and fix any flaws or discrepancies in your data by completing thorough data validation, which contributes to improving the precision and dependability of your analysis and outcomes. As a result, decisions may be made with greater clarity and provide results that are more successful. Validating your data can also help to ensure that it complies with all applicable legal and regulatory requirements, helping you avoid costly errors or penalties. You can make sure that your data is current and dependable throughout time by routinely reviewing and revising it.
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You are a network technician for a small consulting firm. One of your users is complaining that they are unable to connect to the local intranet site.
After some troubleshooting, you've determined that the intranet site can be connected to by using the IP address but not the hostname.
Which of the following would be the MOST likely reason for this?
Pilihan jawaban
Incorrect DHCP Configuration
Incorrect DNS settings
Incorrect subnet mask
Incorrect default gateway
The MOST likely reason for the issue where the user is unable to connect to the local intranet site using the hostname, but can connect using the IP address is;
an Incorrect DNS settings.
Domain Name System (DNS) is responsible for resolving hostnames to IP addresses, and if the DNS settings are incorrect or not configured properly, the hostname will not be resolved to the correct IP address.
This will hence result to connection failure.
Therefore, the correct answer is B. Incorrect DNS settings.
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FILL IN THE BLANK. ___represent the measurements collected regarding a geologic unit, whereas ___ are the proposed explanations for a collection of those measurements.
Data; interpretations
The required erm that represents the measurements collected regarding a geologic unit is "data."
What is geologic unit?The first term that represents the measurements collected regarding a geologic unit is "data." In geology, data refers to any physical or empirical information that is collected about a particular rock, mineral, or other geological unit. This information can include things like the chemical composition, age, location, and physical characteristics of the unit.
The second term that represents the proposed explanations for a collection of those measurements is "hypotheses." In geology, hypotheses are proposed explanations or interpretations of the geological data. These hypotheses are used to explain various aspects of the geological unit, including its formation, history, and potential future changes. Hypotheses are often refined and updated as new data becomes available, and they play a critical role in the scientific study of geology.
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what will happen if the variable total has the value 5 when the following code is executed? if total > 8: print('collywobbles')
A. the word collywobbles is not printed and processing continues. B. the word collywobbles is not printed, but an error message is. C. the word collywobbles is not printed and an exception is thrown. D. the word collywobbles is printed and then processing continues.
The phrase "collywobbles" is not printed and processing proceeds if the variable total has a value of 5 when the following code is executed (if total > 8: print('collywobbles')). Option A is correct.
The phrase "collywobbles" is not written and processing moves forward if the variable total has a value of 5 when the following code is run (if total > 8: print('collywobbles')). Option A is the proper solution in this case.The reason for this is because since 5 is not greater than 8, the condition total > 8 evaluates to False. This prevents the execution of the code block contained within the if statement (which just contains the print statement). Processing continues as usual since no errors or exceptions are raised.
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A programmer is developing a word game. The programmer wants to create an algorithm that will take a list of words and return a list containing the first letter of all words that are palindromes (words that read the same backward or forward). The returned list should be in alphabetical order. For example, if the list contains the words ["banana", "kayak", "mom", "apple", "level"], the returned list would contain ["k", "l", "m"] (because "kayak", "level", and "mom" are palindromes). The programmer knows that the following steps are necessary for the algorithm but is not sure in which order they should be executed. Executing which of the following sequences of steps will enable the algorithm to work as intended?
I. First shorten, then keep palindromes, then sort
II. First keep palindromes, then shorten, then sort
III. First sort, then keep palindromes, then shorten
Pilihan jawaban
a. I only
b. II only
c. I and III
d. II and III
Based on the above statement, pick (D) is the correct one. Prioritize palindromes, then shorten, and then sort III. Sorting was followed by shortening and retaining palindromes.
That would be what sort of an algorithm?Common examples of algorithms include the method for baking a cake, the approach we use to solve a long division challenge, washing laundry, and running a search query.
What is the simple definition of an algorithm?An algorithm is a technique used to do calculations or solve issues. Algorithms perform as a precise set of instructions which carry out preset activities consecutively in either hardware-based and software-based routines. Algorithms play a big role in information technology across the board.
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the bar chart shows the number of visits to a community website in the first and second years of use.T/F
The bar chart shows the number of visits to a community website in the first and second years of use.(TRUE)
Overall, the number of visitors to the site showed a fluctuating trend in both years, with more users visiting the site in the second year than in the first year, except for those who visited the site in August of the same year.
Graphic PurposeAs for the purpose of making graphs, namely to show comparisons of qualitative information quickly and simply. Data in the form of complex descriptive descriptions can be simplified by using graphics. So if a chart is difficult to read or understand, it means that it will miss out on valuable benefits.
Graph FunctionAs for the graph function namely
To accurately describe quantitative data. To explain development, a comparison of an object or event that is interconnected briefly and clearly. The graphs are compiled according to mathematical principles using comparative data..Learn more about graphic at https://brainly.com/question/17267403
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A single query that excludes the result of a subquery returns the same result as two queries joined by the except operator when the second query matches the excluded subquery in the current release of MySQL (8.0.21).TrueFalse
False. A single query that excludes the result of a subquery returns the same result as two queries joined by the except operator when the second query matches the excluded subquery in the current release of MySQL (8.0.21).
What is single query?A single query only contains one SELECT statement, whereas a compound query may contain two or more SELECT statements. By using a specific operator to join the two queries, compound queries can be created. In the examples that follow, two queries are joined together using the UNION operator.
The command most frequently used in Structured Query Language is the SELECT statement. Access to records from one or more database tables and views is made possible by using it. Additionally, it retrieves the data that has been chosen and meets our requirements.
We can also access a specific record from a specific table column by using this command. A result-set table is the one that contains the record that the SELECT statement returned.
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itemtopurchase.h - class declaration itemtopurchase.cpp - class definition main.cpp - main() function (until you get to step 4, just use this main.cpp file to unit test your functions outside of zybooks. alternatively, you can create a test.cpp file that is only used outside of zybooks that contains all of your unit tests. in this case, leave the main function in main.cpp blank until you get to step 4.)
A default constructor Object() { [native code] } is one that either has no parameters or, if it does, contains default values for all of the parameters.
Class A does not have a user-defined function
Object() { [native code] }
but one is required, the compiler implicitly declares A::A() as the default parameterless function Object() { [native code] }.
ItemToPurchase.h
#ifndef ITEMTOPURCHASE_H_INCLUDED
#define ITEMTOPURCHASE_H_INCLUDED
#include<string>
#include <iostream>
using namespace std;
class ItemToPurchase
{
public
//Declaration of default constructor
ItemToPurchase();
//Declaration of SetName function
void SetName(string ItemName);
//Declaration of SetPrice function
void SetPrice(int itemPrice);
//Declaration of SetQuantity function
void SetQuantity(int itemQuantity);
//Declaration of GetName function
string GetName();
//Declaration of GetPrice function
int GetPrice();
//Declaration of GetQuantity function
int GetQuantity();
private:
//Declaration of itemName as
//type of string
string itemName;
//Declaration of itemPrice as
//type of integer
int itemPrice;
//Declaration of itemQuantity as
//type of integer
int itemQuantity;
};
#endif
ItemToPurchase.cpp:
#include <iostream>
#include <string>
#include "ItemToPurchase.h"
using namespace std;
//Implementation of default constructor
ItemToPurchase::ItemToPurchase()
{
itemName = "none";
itemPrice = 0;
itemQuantity = 0;
}
//Implementation of SetName function
void ItemToPurchase::SetName(string name)
{
itemName = name;
}
//Implementation of SetPrice function
void ItemToPurchase::SetPrice(int itemPrice)
{
this->itemPrice = itemPrice;
}
//Implementation of SetQuantity function
void ItemToPurchase::SetQuantity(int itemQuantity)
{
this->itemQuantity = itemQuantity;
}
//Implementation of GetName function
string ItemToPurchase::GetName()
{
//Implementation of GetPrice function
int ItemToPurchase::GetPrice()
{
return itemPrice;
}
//Implementation of GetQuantity function
int ItemToPurchase::GetQuantity()
{
return itemQuantity;
}
main.cpp
#include<iostream>
#include<string>
#include "ItemToPurchase.h"
using namespace std;
int main()
{
//Declaration of ItemToPurchase class objects
ItemToPurchase item1Cart, item2Cart;
string itemName;
//create a variable names like itemPrice
//itemQuantity,totalCost as type of integer
int itemPrice;
int itemQuantity;
int totalCost = 0;
//Display statement for Item1
cout << "Item 1:" << endl;
cout << "Enter the item name : " << endl;
//call the getline function
getline(cin, itemName);
//Display statememt
cout << "Enter the item price : " << end
cin >> itemPrice;
cout << "Enter the item quantity : " << endl;
cin >> itemQuantity;
item1Cart.SetName(itemName);
item1Cart.SetPrice(itemPrice)
item1Cart.SetQuantity(itemQuantity);
//call cin.ignore() function
cin.ignore();
//Display statement for Item
cout << endl;
cout << "Item 2:" << endl;
cout << "Enter the item name : " << endl;
getline(cin, itemName);
cout << "Enter the item price : " << endl;
cin >> itemPrice;
cout << "Enter the item quantity : " << endl;
cin >> itemQuantity;
item2Cart.SetName(itemName);
item2Cart.SetPrice(itemPrice);
item2Cart.SetQuantity(itemQuantity);
//Display statement
cout << "TOTAL COST : " << endl;
cout << item1Cart.GetName() << " " << item1Cart.GetQuantity() << " $" << item1Cart.GetPrice() << " = " << (item1Cart.GetQuantity()*item1Cart.GetPrice()) << endl;
cout << item2Cart.GetName() << " " << item2Cart.GetQuantity() << " $" << item2Cart.GetPrice() << " = " << (item2Cart.GetQuantity()*item2Cart.GetPrice()) << endl;
totalCost = (item1Cart.GetQuantity()*item1Cart.GetPrice()) + (item2Cart.GetQuantity()*item2Cart.GetPrice());
cout << endl;
cout << "Total : $" << totalCost << endl;
return 0;
}
return itemName;
}
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Complete question:
ItemToPurchase.h - Class declaration
ItemToPurchase.cpp - Class definition
main.cpp - main() function
Build the ItemToPurchase class with the following specifications:
Default constructorPublic class functions (mutators & accessors)
SetName() & GetName() (2 pts)
SetPrice() & GetPrice() (2 pts)
SetQuantity() & GetQuantity() (2 pts)
Private data members
string itemName - Initialized in default constructor to "none"
int itemPrice - Initialized in default constructor to 0
int itemQuantity - Initialized in default constructor to 0
If a hard link is created to a file and then the original file is deleted, which of the following is true?
a.The original file will be removed while the hard link remains usable to access the contents of the file.
b.An error message will be displayed preventing the deletion of the original file.
c.The original file will be removed while the hard link remains, though the content will not be accessible.
Option a is correct. If a hard link is created to a file and the original file is deleted, the original file will be deleted, but the contents of the file can still be accessed using the hard link.
Which commands creates a hard link link to a file?By default, the ln command creates hard links. Use the -s option to create soft (symbolic) links. The -f option forces the command to overwrite existing files.
What happens if create a hard link to a file?A hard link has the same inode number as the original file, so it points to the same disk space as the original file. The content of the hard link remains the same even if the original file is renamed. A hard link is basically a link to the actual content of the original file.
What happens when one of the hard links is removed?Even if the user removes one of the hard links, the data is still accessible through the other remaining links. When the user deletes all shortcuts and no process has the file open, the operating system frees up the space occupied by the file.
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use four-digit rounding arithmetic and the formulas (1.1), (1.2), and (1.3) to find the most accurate approximations to the roots of the following quadratic equations. compute the absolute errors and relative errors
Rounding up involves cutting off the digits right of the decimal point if the first digit after the decimal is equal to or more than 5 in rank (see Spelling out numbers).
How do you round three digit numbers?The previous full ten is used to round down numbers that end in 1, 2, 3, or 4. Rounding up to the nearest whole ten is done for numbers that end in 5, 6, 7, 8, and 9.
What is the formula for rounding?The ROUND function has the syntax ROUND(number, decimal places), where number is the number you wish to round and decimal places is the number of decimal places that you desire to round to.
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TRUE OR FALSE attenuation is the reduction in signal strength as the signal propagates down the transmission path.
Attenuation is the reduction in signal strength as the signal propagates down the transmission path. The sentences is TRUE.
Any decrease in a signal's intensity is referred to as attenuation in general. Any signal, whether digital or analog, experiences attenuation. Attenuation, often known as loss, is a normal result of signal transmission over great distances.
What does signal intensity mean on MRI?
The Nobel Prize in Medicine was given in 2003 for a contribution to the development of MRI, recognizing the technology's extraordinary importance to medicine. In order to get MR pictures, significant technical breakthroughs have been accomplished since 2003. However, there is a complex, accident-prone side to MRI; images are not calibrated and individual images depend on a variety of subjective decisions made regarding the machine's settings, acquisition technique parameters, reconstruction techniques, data transmission, filtering, and postprocessing techniques.
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Define a function in c named CoinFlip that returns "Heads" or "Tails" according to a random value 1 or 0. Assume the value 1 represents "Heads" and 0 represents "Tails". Then, write a main program that reads the desired number of coin flips as an input, calls function CoinFlip() repeatedly according to the number of coin flips, and outputs the results. Assume the input is a value greater than 0.
Hint: Use the modulo operator (%) to limit the random integers to 0 and 1.
Ex: If the random seed value is 2 and the input is:
3
the output is:
Tails
Heads
Tails
Note: For testing purposes, a pseudo-random number generator with a fixed seed value is used in the program. The program uses a seed value of 2 during development, but when submitted, a different seed value may be used for each test case.
The program must define and call the following function:
void CoinFlip(char* decisionString)
The Coin Flip function accepts a character array pointer as an input, creates a random integer using the modulo operator, then, depending on the value, sets the first character of the array to either "H" or "T."
Is coin tossing a random sampling?A excellent physical example of random selection is flipping a coin or rolling a die. There is a 50/50 chance of receiving heads when you flip a coin. If you flip a coin once and receive heads, you have a 50/50 probability of getting heads the next time.
'#include stdio.h'
"#include stdlib.h"
time.h> is included.
CoinFlip() void (char* decisionString Create a random number between 0 and 1 if (random ==) (int random = rand()% 2) Set the decision string to "Heads" by entering "*decisionString = 'H'" else Set the decision string to "Tails" by entering "*decisionString = 'T'"
'0' is added to the string as follows: *(decisionString + 1)
Enter the number of coin flips here: int numFlips; printf ("Enter the number of coin flips: "); scanf("%d", &numFlips); getchar(); / eat the newline character from the input buffer for (int I = 0; I numFlips; i++) int main() srand(time(NULL)); / seed the random number generator with the current time int CoinFlip(decisionString); / use the CoinFlip method to determine the outcome. char decisionString[6]; / define a string with a size of 6 to carry either "Heads" or "Tails"
return 0; printf("%sn", decisionString); / print the result.
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while investigating a data breach, you discover that the account credentials used belonged to an employee who was fired several months ago for misusing company it systems. the it department never deactivated the employee's account upon their termination. which of the following categories would this breach be classified as?
This breach would be classified as insider threat. Thus, option 1 is correct.
What is an insider threat?The term "insider threat" describes a cyber security risk that comes from within an organisation. It typically happens when a current or former employee, contractor, vendor, or partner with valid user credentials abuses their access to the organization's networks, systems, and data. Unintentionally or intentionally, an insider threat may be carried out. The integrity, confidentiality, and/or availability of enterprise systems and data are ultimately compromised, regardless of the initial motive.
For most data breaches, insider threats are to blame. The organisation is vulnerable to internal attacks because traditional cybersecurity strategies, policies, procedures, and systems frequently concentrate on external threats. It is challenging for security experts and software to differentiate between normal and harmful activity because the insider already has legitimate access to data and systems.
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Complete question:
While investigating a data breach, you discover that the account credentials used belonged to an employee who was fired several months ago for misusing company IT systems. Apparently, the IT department never deactivated the employee's account upon their termination. Which of the following categories would this breach be classified as?
Options are :
Insider Threat Zero-dayKnown threatAdvanced persistent threatwhich of the following makes the data in a file readable and usable to viewers that have an appropriate key?
A file readable and usable to viewers that have an appropriate key is Encrypting.
Conditional Access App Management offers real-time monitoring and control of user app access and sessions based on access and session restrictions. The Defender for Cloud Apps interface uses access and session controls to configure actions and fine-tune filters. Cloud adoption best practices from Microsoft staff, partners, and clients are gathered in the Cloud Adoption Framework.
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TRUE/FALSE. macro systems consist of large groups of individuals who all are, in effect, potential targets of change or helpers in the change process.
Answer:
True
Explanation:
I took the test
additional IPv4 routing controls are provided by the options. What is the boundary where the options must end?
The optional 14th field causes the IPv4 header's size to vary (options). The IPv4 header's size is indicated by the IHL field, which includes 4 bits that describe how many 32-bit words are included in the header.
What IPv4 header field varies from router to router?Checksum: Every router's checksum field is updated in tandem with the other fields' values. TTL (Time to Live): The TTL field is decreased by one after each hop. Because of this, every router updates this field.
What IPv4 protocol field is used to regulate the number of routers?Time to Live is referred to as TTL. Based on the number of hops the IP packet makes (Number of routers), this parameter indicates the IP packet's lifetime.
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