A table's columns can be added, removed, or modified using the SQL ALTER TABLE command. The ALTER TABLE command should also be used to add and remove different constraints from an existing table.
What command is used to add a column to a table that already exists, Mcq?Columns in an existing table can be added, dropped, or modified using the ALTER TABLE statement. Additionally, it is used to add and remove certain constraints from the current table.
Which statement can be used to change a table's definition that already exists?The ALTER TABLE statement can be used to add, remove, or change the columns of an existing table. A table's existing constraints can be added or removed using the ALTER TABLE statement.
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What command cannot be used to display tracked data for your account in shell variables or environment variables?
The 'echo' command cannot be used to display tracked data for your account in shell variables or environment variables.
What is variables?
A variable is a named storage location for data that can change during program execution. When a program is executed, a variable can be assigned a value and that value can be used throughout the program. Variables can store any type of data, such as integers, characters, strings, and objects. The data stored in a variable is subject to change, thus the name variable. Variables are typically declared with a data type and a name. A variable's data type dictates what values can be stored in the variable. Variables are used to store data that can be used throughout a program and can be used to make programming easier and more efficient. Variables help to keep the code organized and easy to read.
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Which of the following modes removes a UPS from between the device and the wall output conceptually, without disconnecting it? A. Override
B. Link switch
C. Bypass
D. Closed circuit
Answer:
Explanation:
b:link switch,
Which of the following choices is a properly formed JavaScript variable name, meaning it is both legal in the JavaScript language and considered good style?
The correct answer is userage of the following choices is a properly formed JavaScript variable name, meaning it is both legal in the JavaScript language and considered good style.
Powerful and pluggable, Pyrogram-written in Python, Userge is a Telegram userbot. The user-agent header that the browser submitted to the server is returned via the userAgent attribute. UserAgent is a read-only attribute. The name, version, and platform of the browser are all included in the result returned.Any application that implements Web technologies that obtains and displays Web material for end users is referred to as a user agent. Web browsers, media players, and plug-ins are examples of user agents that aid in retrieving, rendering, and interacting with web information.
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FILL IN THE BLANK. a ___ has custom service contract that pre-defines the data model of input and output messages
Web services have a custom service contract that defines the data model of input and output messages.
In computing, data is information that has been translated into a form that is efficient for movement or processing. Data, in the context of today's computers and transmission media, is information converted into binary digital form. Data can be used as a singular or plural subject. Raw data is a term used to describe data in its most basic digital format.
The concept of data in the context of computing derives from the work of Claude Shannon, an American mathematician known as the father of information theory. He pioneered binary digital concepts based on the application of two-value Boolean logic to electronic circuits. CPUs, semiconductor memories and disc drives all rely on binary digit formats.
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graph the function d using a graphing calculator or app, and choose a viewing window so that you can see one full period of the graph
The area of the coordinate plane that will be shown on your graphing calculator's screen is known as the viewing window.
A graph window is what?For processing one-dimensional data, a graph window is utilized. They are produced using the proper programs or tools that take height field data and extract graphs. Three tabs make up the graph window: the first two provide graphic and tabular representations of the 1D data, while the third tab displays a list of graph curves.
What is the purpose of Graph Pad?Scientific graphing, thorough curve fitting (nonlinear regression), comprehensible statistics, and data organizing are all combined in GraphPad Prism. Prism makes it simple to carry out fundamental statistical tests that are frequently used by laboratory and clinical researchers, but it won't replace a powerful statistics application.
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which of the following is a not for profit organization that originated in the uk and offers training and certification in cyber security?
A non-profit organization in the UK called ISACA provides cyber security training and certification.
A non-profit organization in the UK called ISACA provides cyber security training and certification. Thus, the appropriate response is A: "ISACA leads the way in pursuing digital trust." ISACA is an independent, not-for-profit organization that supports experts in information security, risk management, and governance. In 1969, it was founded in the UK. These professionals look at ISACA as a reliable source of standards, certification, and community information and technology. ISACA supports IT professionals in taking the initiative to advance digital trust. The Sysadmin, Audit, Network, Security (SANS) Institute offers training and security certifications through Global Information Assurance Certification (GIAC).
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display the number of occurrences of the letter 'e' in a string that is input by the user. assume the string variable is called name.
Create a counter variable to track the occurrences of the letter:
name = input("Please enter a string: ").
A variable is a symbolic name associated with a value that can be changed, depending on conditions or on information passed to the program. Variables are used to store and manipulate data within a program. In programming, a variable is a container (storage area) for values that can be changed during the program’s execution. When a variable is declared, it is given a name, a data type, and an initial value. The data type defines what kind of data the variable will hold and the size of the memory allocated for the variable. The initial value is the value the variable is set to when it is declared. Variables can be changed and updated during the execution of a program. Variables can also be used to store values that are passed to a program from an external source, such as a user’s input.
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Fill in the blank: To add drop-down lists to your worksheet with predetermined options for each city name, you decide to use _____.
You choose to utilize Data validation to add drop-down lists with predetermined alternatives for each city name to your worksheet.
A worksheet is a piece of paper used for work in the phrase's original sense. They come in a variety of shapes, but are most usually associated with accounting, tax forms, and other commercial contexts. Software is progressively taking the place of the paper worksheet. A child may use a writing instrument to complete a printed page. It is not necessary to purchase any more materials. It is "a piece of paper used to scribble down problems, thoughts, or the like in a rough form. a piece of paper used to record work schedules, working hours, special instructions, etc." Students may be given questions on a worksheet along with spaces to write down their answers.
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True or False, identity theft is investigated the same way, regardless how the hackers stole it (in a physical manner or via a computer)
False, identity theft is not investigated the same way, regardless how the hackers stole it (in a physical manner or via a computer).
What is hackers?Computer experts who use their technical knowledge to gain unauthorised access to computer systems and networks are known as hackers. They may be motivated by a variety of factors, including financial gain or simply the challenge of breaking into a secure system. To gain access, hackers employ a variety of techniques such as exploiting software vulnerabilities, social engineering, and network sniffing.
Once inside, they can steal sensitive information, delete or corrupt data, or use the system to launch attacks against other systems. To protect themselves from hackers, organisations and individuals should keep their systems up to date with the latest security patches and use strong passwords.
Identity theft involving physical information access is typically investigated differently than identity theft involving digital access.
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directions: select the choice that best fits each statement. the following question(s) refer to the following method a 21-line programming code reads as follows. line 1: public static int mystery, open parenthesis, int n, close parenthesis. line 2: open brace. line 3: int x equals 1, semicolon. line 4: int y equals 1, semicolon. line 5: blank. line 6: forward slash, forward slash, point a. line 7: blank. line 8: while, open parenthesis, n greater than 2, close parenthesis. line 9: open brace. line 10: x equals x plus y, semicolon. line 11: blank. line 12: forward slash, forward slash, point b. line 13: blank. line 14: y equals x minus y, semicolon. line 15: n, minus, minus, semicolon. line 16: close brace. line 17: blank. line 18: forward slash, forward slash, point c. line 19: blank. line 20: return x, semicolon. line 21: close brace. question what value is returned as a result of the call mystery (6)? responses 1 1 5 5 6 6 8 8 13
The value returned as a result of the call mystery(6) is 8 as this method appears to be implementing the Fibonacci sequence.
How the result of the call mystery(6) is 8?
This method appears to be implementing the Fibonacci sequence, where each number in the sequence is the sum of the two preceding ones, usually starting with 0 and 1.
The code initializes two variables, x and y, with the value of 1. Then it enters a while loop that continues as long as the input value (n) is greater than 2. Inside the loop, the value of x is updated to be the sum of x and y and y is updated to be the difference between x and y.
The value of n is decremented by 1 in each iteration. The loop will run n-2 times, since x and y were already initialized to 1. Finally, the value of x is returned. In the call mystery(6), the loop will run 4 times, and the value of x will be the 5th fibonacci number which is 8.
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a popular game allows for in-app purchases to acquire extra lives in the game. when a player purchases the extra lives, the number of lives is written to a configuration file on the gamer's phone. a hacker loves the game but hates having to buy lives all the time, so they developed an exploit that allows a player to purchase 1 life for $0.99 and then modifies the content of the configuration file to claim 100 lives were purchased before the application reading the number of lives purchased from the file. which of the following type of vulnerabilities did the hacker exploit?
This is a race situation since the hacker's actions were carried out before the application read the paid lives.
What does the term "racial condition" mean?When two threads access a shared variable at the same moment, a race condition happens. The variable is read by the first thread, and the same value is read by the second thread.
What is a race condition, for instance?A simple example of a race situation is a light switch. Various light switches in some homes can each control a single common ceiling light. When specific circuit types are used, the switch position is irrelevant. If the light is on, moving either switch from its current position turns it off.
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A _____ window has separate parts that swing inward or outward when opened and is designed to provide the full area of the window opening for ventilation.
Select one:
a. pivoting
b. double-hung
c. picture
d. single-hung
A pivoting window has separate parts that swing inward or outward when opened and is designed to provide the full area of the window opening for ventilation.
What is Pivoting window ?In essence, a pivot window is a casement window with a different opening mechanism. Here, unlike a door, the casement, the moveable portion containing the glazing, is not side-hung on hin-ges. Instead, it pivots from hin-ges positioned in the middle of the frame, either vertically or horizontally. The pivoting actions of the pivoted window are indicated by its name. It enables a horizontal or vertical opening and closing and is fixed to a centre frame. Either 180 degrees or 90 degrees of opening can be achieved with the window. As a result, it is a great window if you want the best air ventilation.
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Study the formulas listed below. Which of the formulas contain an error that will prevent it from working?A. =Sum(A1, A4)B. =B26-M13C. =C4/C1D. B4=A1+A5
B4=A1+A5 is the formula that contains an error that will prevent it from working. This formula is missing the equals sign (=) after the B4, so the formula cannot be read by the program.
What is formula?A formula is a mathematical expression which is used to calculate a value or solve a problem. It typically consists of one or more variables, constants, and operators, and is written in a specific syntax. Formulas are widely used in many areas of mathematics and science, including algebra, calculus, statistics, physics, and chemistry. They are also used in everyday applications such as financial planning, engineering, and computer programming.
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The column attributes for rank, name, population, and county are located in which row of the following spreadsheet?
Row 1. The column attributes (or column headers) are located in the first row of the spreadsheet.
What is spreadsheet?A spreadsheet is a computer application designed to organize data, store and manipulate numbers, and perform calculations. It is typically composed of rows and columns, which contain cells that hold numbers, text, formulas, or other data. Spreadsheets are commonly used for financial, statistical, and other numerical data. They can also be used to organize and store data for other purposes. Spreadsheets are generally used to present information in a compact and organized format, making it easier to analyze and interpret data. Spreadsheets are versatile, efficient, and powerful tools for managing data.
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magine a business where there are no clear boundaries defined for data and systems ownership. as a security professional, describe some potential problems that may arise from this condition. it may be helpful to frame your analysis by describing the issues in relation to the loss of one of the cia triad security objectives.
Consider a company where ownership of data and systems has no distinct boundaries. As a security expert, list some potential issues that could result from this situation.
What do you meant by cia triad security objectives ?Because there are no established boundaries for system and data ownership, the first thing a security expert would notice is the loss of confidentiality, integrity, and availability. We must first clarify data and system ownership because the circumstance will trigger a lot of red lights. Data ownership indicates that the owner has full control over and all rights to the data, and that they are responsible for keeping it secure.
Any necessary data transfers can then be approved by the owner and given to anyone else. System ownership refers to the duty of upholding the system and providing upgrades, functions, and maintenance for the hardware and software. Lack of data ownership in a company might damage data privacy, which can be a very worrisome and stressful situation.
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the code segment below is intended to display all multiples of 5 between the values start and end, inclusive. for example, if start has the value 3 5 and end has the value 5 0, the code segment should display the values 3 5, 4 0, 4 5, and 5 0. assume that start and end are multiples of 5 and that start is less than end. the program consists of 6 lines. begin program line 1: i, left arrow, start line 2: reapeat, missing expression, times line 3: open brace line 4: display, open parenthesis, i, close parenthesis line 5: i, left arrow, i plus 5 line 6: close brace end program. which of the following could replace missing expression in line 2 so that the code segment works as intended?
There are n elements in a list of numbers, numbered from 1 to n. The code segment purpose of the following algorithm is to show how many elements in the list have values.
What do you call blocks of code?
A "code segment" in computing is an object file or the corresponding area of the virtual address space of the program that contains executable instructions. Other names for it include text fragments and plain text.
Which of the following code segments can only be used by one process at once?
A Critical Part is a section of code that uses shared variables and needs to be executed in a single, atomic operation. It represents a group of processes that are collaborating at a certain moment in time.
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after you submit the answer to this question, webassign will show correct answers with green check marks and wrong answers with red x marks. you will sometimes want to use the e-format for exponentials. for example, 2.53x104 or 25310 would be entered as 2.53e4. 3.567x10-3 or 0.003567 would be entered as 3.57e-3 express the following numbers to three significant digits in the e-format. use one number to the left of the decimal and two to the right. 0.001397 webassign will check your answer for the correct number of significant figures. 1.39e-3 correct: your answer is correct. 0.000013125 webassign will check your answer for the correct number of significant figures. 13.125e-6 partial credit: your answer received partial credit. check the number of significant figures. 35116
When more items like points or segments are added to your graph, such as in WebAssign's graphing tool, the score can become incorrect.
What do the red numbers mean in WebAssign?Observe the information defining your response by clicking Submission Data to verify this. To make sure no additional objects are drawn, clear the picture and begin again.Assignments The majority of WebAssign questions use randomized values, which are typically shown in red. By allowing for the practice of several versions of the question if enabled, randomizing question values aids in ensuring that every student has an equal opportunity to succeed on coursework.Log files can be compared side by side to look for similarities. When further research is required, you can examine student answer data to determine whether correct/incorrect responses match in ways that seem to suggest student cheating.If enabled, clicking Practice Another at the top of a question in an assignment will allow you to practice on an alternative, randomized version of the question. Practice questions are not graded, but they can be used to gauge how well you comprehend the issue.To Learn more About WebAssign's, refer TO:
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an online store uses an algorithm that calculates the total revenue from customer orders by summing up all the order amounts
The following definition provides the answer to this query: The response to question 1 is "O(1), constant order."
There are no constant or low-order words for big-O notation in question 1. The algorithm with succession planning is faster than a linear technique and slower than that of an algorithm with quadratic times, which can be attributed to the fact that, where N is large enough, the terms static and low average differ. In case 2, the entire sequence is also referred to as a linear order, and a sequence or even a set having such a real line is named. Several authors use a to claim a||b to demonstrate either that ab or be holds to show that a not (simply) total request always alludes to it as a weighted sum.
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in what part of the access window do you rename a form? a. navigation pane b. form view of the form c. print preview of the form d. backstage view
In Form View, you can rename the form by selecting the form title in the top left corner and typing in the new name.
What is title?A title is a name or label that is given to something to identify, describe, or classify it. Titles can be given to people, places, works of art, organizations, and other things. Titles are often used to indicate rank or status, such as a title of nobility like “Prince” or “Sir”, or a title of office like “President” or “Mayor”. Titles can also be given to works of literature, films, music, and other creative works to identify them and make them easier to find. Titles are also used to summarize the main idea of an article, book, or other piece of writing, and to make it easier to remember.
You can access Form View by selecting the form that you would like to rename in the Navigation Pane. The Print Preview of the Form and the Backstage View do not allow you to rename the form.
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a specialized computer used to collect, store, and report all the information about a sales transaction is called
A point of sale, sometimes known as a POS, is a machine that handles retail customers' transactions. A POS includes a cash register.
The selling price is the sum that a company earns from the sale of a product. Markup is the sum that a company adds to the cost of goods to determine the selling price. Sales taxes are levied when goods or services are sold. Cash and revenue are the only two accounts that need to be used in a journal entry to record cash sales in the company's books. Both the cash balance and the revenue account on the company's balance sheet and income statement grow as a result of the entry.
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list 5 importance of input devices
An input device is a piece of hardware that is used to send data to a computer or other electronic device. Examples of input devices include keyboard, mouse, touchpad, scanner, These devices allow a user to interact with and input information into the computer or device.
What is the 5 importance of input devices?
The five importance of input devices are as follows:
Input devices allow users to interact with a computer or other electronic device, allowing them to input data and commands.They enable users to efficiently and accurately input large amounts of data, such as text or numerical information.Input devices can also be used to control various aspects of a computer or other electronic device, such as adjusting the volume or changing the screen resolution.Some input devices, such as a touchpad or touchscreen, allow for greater flexibility and ease of use compared to traditional devices such as a mouse or keyboard.Input devices can also be used in specific fields or industries, such as graphic design or gaming, to improve efficiency and precision.To learn more about input devices, visit: https://brainly.com/question/13014455
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You are querying a database that contains data about music. each album is given an id number. you are only interested in data related to the album with id number 6. the album ids are listed in the album id column. you write the sql query below. add a where clause that will return only data about the album with id number 6.
Duplicate names will be removed from the name column by the DISTINCT name clause. In its whole, the command is SELECT DISTINCT name FROM playlist ORDER BY playlist id.
What is album ID?The WHERE album id = 6 clause will only produce information on albums with the ID number 6. The full search string is SELECT * FROM track WHERE album ID =6. Results that match certain requirements are filtered by the WHERE clause. The column name, an equals sign, and the value(s) in the column to include are all included in the WHERE clause.
The album with ID number 6 has thirteen songs. Bach:Goldberg Variations is the name of the album with the ID 277. a unique Spotify identification for a song or album. ID is a placeholder for unidentified information, such as the track name or artist, in tracklists and setlists. It is expressed as ID - ID when neither the song title nor the artist are known (or cannot be displayed on the tracklist).
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check which of the following are examples of computational thinking. mark all that apply. group of answer choices shopping for a car choosing a college rsvp'ing to a friend's party taking an impromptu walk in the park
Making and understanding maps, planning a chess strategy, and breaking down a big to-do list into doable daily tasks are some instances of computational thinking.so a group choosing to go shopping for a car is the example of computational thinking.
The term "computational thinking" describes analytical reasoning and problem-solving techniques that could be carried out by a computer.In other words, approaching technology with the mindset and behavior of a computer scientist.An algorithm is what? Consider an algorithm as a series of detailed instructions that, when coded, produce a pattern or predetermined result and present the data in a way that is understandable to others.That's because it most certainly is the kind of thinking that has a wide range of applications both inside and beyond the domain of technology.It is the kind of thinking that separates things into their component parts, optimizes procedures for effectiveness, and spots beneficial trends.
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A network uses a star topology. How are the devices connected?
A.
Each device is connected to two other devices.
B.
Each device is connected to a bus.
C.
Each device is connected to all the others.
D.
Each device is individually connected to a central device.
Answer:
D. Each device is individually connected to a central device.
once data is clean, a data analyst moves on to ____ and verification.
Remove redundant or meaningless observations, as well as unwanted observations, from any dataset. During data collection, the bulk of duplicate observations will occur.
Process verification: What Is It?
Process verification includes "confirmation through examination and the presentation of objective proof that requirements have also been satisfied," according to FDA.
How is data cleaning defined?
Data cleaning is a type of process used on data sets to remove noise from the data (or noisy data), inconsistent data from the provided data, and other undesirable elements. It also involves the transformation process, in which incorrect data is changed into accurate data.
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kim wants to place a device on the outward-facing areas of the organization's network that may be broken into by an attacker so that she can evaluate the strategies that hackers are using on his systems. which of the following would she use?
Data loss, system downtime, and legal repercussions are a few examples of the risks that can be identified through qualitative risk assessments.
What are the types of risk assessment?After controls are taken into consideration, there is still risk, which is known as residual risk . It is the risk that endures even after your company has implemented all necessary safety measures. Prior to taking any steps to reduce the risk's likelihood or impact, inherent risk is often characterised as the level of risk present to enable a business to fulfil its goals. After the creation and implementation of the entity's response, there is still a certain amount of risk, which is known as residual risk.
Three different kinds of risk assessments exist: baseline, issue-based, and continuous risk assessments. Any method that lessens dangers or weaknesses qualifies as a countermeasure. While it might be pleasant to imagine that this process only needs to be done once, that is not the case.
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define the proposition in symbols using: p: the weather is bad. q: the trip is cancelled. r: the trip is delayed. proposition in words: the trip is cancelled or the weather is bad. proposition in symbols:
The proposition in symbols using p: the weather is bad. q: the trip is cancelled. r: the trip is delayed. proposition in words: the trip is cancelled or the weather is bad. proposition in symbols: p ∨ q.
What is symbols?
Symbols are representations of objects, ideas, and beliefs that are used in various contexts to convey meaning. They can take the form of objects, words, gestures, sounds, and images, and can be used both in traditional and modern contexts. Symbols are often associated with religious, political, and cultural beliefs, and can convey a range of meanings, from hope and power to fear and death. Symbols offer an effective way to communicate ideas and feelings and can be used to express abstract concepts that are difficult to put into words. They also provide a way to bridge gaps between different cultures, allowing individuals to understand each other’s beliefs, values, and perspectives.
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Question 1: Use yfinance to Extract Stock Data Reset the index, save, and display the first five rows of the tesla_data dataframe using the head function. Upload a screenshot of the results and code from the beginning of Question 1 to the results below.
The yfinance library can be used to extract stock data for a specific company. Here's an example of how you can use it to extract data for Tesla and reset the index, save, and display the first five rows of the dataframe using the head function.
Below is the code to extract stock data of Tesla:
import yfinance as yf
# get stock data for Tesla
tesla_data = yf.download('TSLA')
# reset the index
tesla_data.reset_index(inplace=True)
# Save the information to a CSV file.
tesla_data.to_csv('tesla_data.csv')
# display the first five rows of the dataframe
print(tesla_data.head())
It's important to notice that you need to install yfinance library before use it. You can install it by running !pip install yfinance
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words that refer to storage on the internet web apps that help you accomplish specific tasks such as creating a document or presentation example of web app referred to as online reference software a mapping application that might require you to download additional software a host site that provides microsoft office web apps and cloud storage
Productivity apps refers to web apps that help you accomplish specific tasks such as creating a document or presentation
dictionary.com is an example of web app referred to as online reference software. earth is a mapping application that might require to download additional software.OneDrive is a host site that provides microsoft office web apps and cloud storageWeb apps:An application program known as a web app is delivered over the internet via a browser interface and stored on a remote server. By definition, web services are web apps, and many websites, but not all of them, contain web apps.
What else are web apps referred to as?A progressive web app, also known as a PWA, is a type of web-based application software built with common web technologies like HTML, CSS, JavaScript, and WebAssembly.
How do web apps function?A client-side and server-side software application that a client runs or requests in a web browser is known as a web application in a computer system. Email, online retail sales, online auctions, wikis, and instant messaging services are just a few examples of common web applications.
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A woman works as an accountant at a medical office. She sometimes copies files from her desktop computer to work on at home.
One afternoon, she decides to work on a tax statement on her laptop at home. She copies the files she needs from her desktop computer onto a USB flash drive. When she gets home, she inserts the flash drive into the laptop to access her files but gets an error message – "USB device not recognized."
What would be the best way to determine if the problem is with the laptop or with the flash drive?
A. Leave the flash drive in the laptop and shut down and restart the laptop.
B. Remove the flash drive, shut down and restart the laptop, and then re-insert the flash drive.
C. Reformat the flash drive and try again.
D. Remove the flash drive and try it in a different computer.
The best way to determine if the problem is with the laptop or with the flash drive is to remove the flash drive and try it on a different computer. The correct option is D.
What is a flash drive?A USB flash drive can be used to launch an operating system from a bootable USB, store crucial files and data backups, transport preferred settings or programs, perform diagnostics to diagnose computer issues, and more.
The following list includes the different causes of USB devices not recognizing errors: The system's drive software was unable to fully load. The system doesn't read it since the drive could have any dangerous files on it.
Therefore, the correct option is D. Remove the flash drive and try it on a different computer.
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