I dont know why my code doesn't give me a multiplication looking like this.
Answers
Answer:
Here is a program that will print a multiplication table like the one on the image:
# Print the top row of column labels
print(" ", end="") # print an extra space at the beginning of the line
for i in range(1, 10):
print(f"{i:2} ", end="")
print() # move to the next line
# Print the rest of the table
for i in range(1, 10):
print(f"{i:2} ", end="") # print the row label
for j in range(1, 10):
print(f"{i * j:2} ", end="")
print() # move to the next line
Explanation:
# Print the top row of column labels
print(" ", end="") # print an extra space at the beginning of the line
for i in range(1, 10):
print(f"{i:2} ", end="")
print() # move to the next line
This block of code is responsible for printing the top row of the table, which consists of the column labels. It starts by printing an extra space at the beginning of the line using the print function. This is done to align the row labels, which will be printed later, with the rest of the table.
Next, there is a for loop that iterates over the values 1 to 9 (inclusive). For each value of i, the loop prints i using a formatted string. The :2 in the formatted string means to pad the output with spaces so that it is at least 2 characters wide. The end parameter of the print function is set to a space, so that the output will be separated by spaces rather than by newlines.
Finally, the print function is called again, but this time without any arguments. This moves the output cursor to the next line, so that the rest of the table can be printed on subsequent lines.
# Print the rest of the table
for i in range(1, 10):
print(f"{i:2} ", end="") # print the row label
for j in range(1, 10):
print(f"{i * j:2} ", end="")
print() # move to the next line
This block of code is responsible for printing the rest of the table, which consists of the rows and their corresponding values. It starts with a for loop that iterates over the values 1 to 9 (inclusive). For each value of i, the loop first prints i using a formatted string. The :2 in the formatted string means to pad the output with spaces so that it is at least 2 characters wide. The end parameter of the print function is set to a space, so that the output will be separated by spaces rather than by newlines.
Next, there is another for loop that iterates over the values 1 to 9 (inclusive). For each value of j, the loop calculates i * j and prints it using a formatted string. The :2 in the formatted string means to pad the output with spaces so that it is at least 2 characters wide. The end parameter of the print function is set to a space, so that the output will be separated by spaces rather than by newlines.
Finally, the print function is called again, but this time without any arguments. This moves the output cursor to the next line, so that the next row of the table can be printed on the subsequent line.
Related Questions
Which of the following statements are true about SIGINT? Select all that apply.
It is an interrupt signal that can be sent to a process that is running.
It can be sent at the CLI by pressing the CTRL+C keys.
It can be sent at the CLI by typing the sigint command.
It is a signal that exists in both Windows and Linux.
Answers
The following statements are true about SIGINT.
It is a signal that both Windows and Linux recognize.It is a signal that can be used to interrupt an active process.By pressing CTRL+C on the CLI, it can be sent.What is SIGINT?The term "signals intelligence" (SIGINT) refers to gathering information by intercepting signals, whether they are human communications (COMINT, or "communications intelligence") or electronic signals that aren't specifically being used for communication (ELINT, "electronic intelligence"). The management of intelligence collection includes signals intelligence.
Since sensitive and confidential information is frequently encrypted, signals intelligence also uses cryptanalysis to decipher the messages. Information is once again integrated using traffic analysis, the study of who is signalling whom and how much.
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given the string line, create a set of all the vowels in line. associate the set with the variable vowels.
Answers
If there isn't an element with the same value already in the Set, the add() method adds a new element with the specified value to the Set object. The set of all vowels in line is as follows:
vowels = set() for x in line: if x=="a" or x=="e" or x=="i" or x=="o" or x=="u": vowels.add(x)
Sets are a grouping of elements that are not duplicates and are not sorted. Consider the following code to demonstrate how the set() and add() method works:
vowels = set() in line for c:
When "aeiou."
vowels: find(c) >= 0
add(c)
Here, use set() to create a set of vowels and set the starting value of the count variable to 0. Then, go through the alphabet in the string and determine whether each letter is a fixed vowel. Lastly, The vowel count is increased if it is present.
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I see a notification but when i click It's not there. Is there a way to fix it or....
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Why might you get a warning that there is a problem with a web page’s security certificate?
Ads will infect your computer with malware.
The web page might be unsafe.
Your security software is out of date.
Your computer may have the wrong settings.
The web page could have intrusive ads.
Answers
The web page might be unsafe.
Why there is a problem with this website's security certificate?This website's security certificate was not produced by a reputable certificate authority. Problems with security certificates may be a sign that someone is trying to trick you or intercept the data you submit to the server. We advise you to leave this website now and not go any further.If the computer's date and time are incorrect, changing them and then reloading the website should resolve the problem. However, if the date and time are accurate and the website is well-known and reputable, it can simply be a certificate error.The web page or website you are viewing does not offer an encrypted connection, which is why you are getting the "Not Secure" warning.To learn more about web page refer,
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In general, we are ______ of information transmitted along somatosensory pathways to the brain, and ______ of the information transmitted along viscerosensory pathways
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In general, we are conscious of information transmitted along somatosensory pathways to the brain, and unconscious or unaware of the information transmitted along viscerosensory pathways
Which neural route delivers sensory data to the brain?The spinal cord serves as the body's main nerve highway, speeding up the transmission of sensory and motor information to the brain and body. Ascending neural tracts in the spinal cord carry the information picked up by peripheral sensory receptors.
Therefore, one can say that the condition of the body's internal organs and their status are communicated by viscerosensory pathways. Both the proper operation of autonomic reflexes and the transmission of visceral sensation to higher levels of the nervous system depend on these pathways.
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When declaring a reference variable capable of referring to an array object, the array type is declared by writing the name of an element type followed by some number of empty pairs of square brackets [].
The components in an array object may refer to other array objects. The number of bracket pairs used in the declaration of the reference variable indicates the depth of array nesting (in the sense that array elements can refer to other array objects).
An array's length is not part of its type or reference variable declaration.
Multi-dimensional arrays are not required to represent rectangles, cubes, etc. They can be ragged.
The normal rules of type conversion and assignment compatibility apply when creating and populating array objects.
Answers
In Java, an array is declared by providing a type and name, such as "int[] myArray."
What is Array Declaration in Java?Similar rationale applies to declaring a Java variable and an array object in Java. In order to indicate that an array is being used, we append rectangular brackets [] to the variable name and the data type of each element in the array.You can declare an array in one of the following two ways:The second option, which indicates the type of intArray more explicitly, is frequently preferred.int intArray[];
int intArray;
We only produced an array reference, as you may have noticed. Since we don't know the array's size and what it will hold, no memory has been assigned to it.To Learn more About array refer to:
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What does return do in python. In comparison to print.
(Currently I know it return goes back to original value or a caller but please correct me)
Answers
Answer:
return() in Python
The return() statement, like in other programming languages ends the function call and returns the result to the caller. It is a key component in any function or method in a code which includes the return keyword and the value that is to be returned after that.4 Oct 2022
You have recently compiled a custom Linux kernel. You notice some performance issues with and need to use the kernel log files to troubleshoot the problem. Which command should you use?
Answers
The command you should use to view the kernel log files is dmesg. This command prints out the kernel log messages, which can provide useful information in troubleshooting performance issues.
Troubleshooting Performance Issues Using Linux Kernel Log FilesThe Linux kernel is the core of any Linux-based operating system and is responsible for managing system resources and providing a platform for applications to run. This makes it essential to have a reliable kernel. However, like any complex system, sometimes there are performance issues that need to be troubleshooted. In such cases, kernel log files can help provide valuable insight into the problem.
Kernel log files are the records of the kernel's activities. They provide detailed information about the system, including system errors, warnings, and other important events. This allows for detailed analysis of the system and can help pinpoint the source of any performance issues.
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You have issued the command grep Hal on a text file you generated using information from a failed login attempts file. It returns nothing, but you just performed a test case, by purposely failing to log into the Hal account, prior to generating the text file. Which of the following is the best choice as your next step? A. Employ the tail command to peruse the text file. B. Employ the cat command to view the text file.
C. Delete the text file and regenerated it using information from the failed login attempts file. D. Issue the grep -d skip Hal command on the text file. E. Issue the grep -1 Hal command on the text file.
Answers
Issue the grep -d skip Hal command on the text file as your best option for the next action.
Explain about the hidden files?The keyboard shortcut CTRL + H can be used to quickly display hidden files. Another alternative is to right-click anywhere in a folder and select the Show hidden files checkbox at the bottom.
A hidden file is one that has the hidden attribute enabled so that people cannot see it when browsing or listing files. Hidden files are used to save user preferences or to maintain the functionality of tools. They are routinely produced by different system or application utilities.
The main purpose of a hidden file is to guard against unintentional deletion of crucial data. Since everyone can view them, hidden files shouldn't be utilized to conceal sensitive information.
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Points Assume variables year and temp contain integer and floating point values, respectively. Complete the call to the write method so that year and temp are written to the output file in CSV format with temp having four fixed decimal places of precision. For example, if year and temp are set as follows: year = 2018 temp = 0.1234567 This statement, which you will complete: outfile.write( Should produce this line in the output file: 2018,0.1235\n Enter a Python expression that includes the variables year and temp in the box below:
Answers
The Python expression would be -
outfile.write("{},{:.4f}\n".format(year, temp))
What is Python?Python is a popular, high-level programming language known for its simplicity, readability, and flexibility.
It was first released in 1991 and has since become one of the most widely used programming languages in the world. Python is used for a wide variety of purposes, including web development, data science, scientific computing, and artificial intelligence. Many of the world's largest technology companies use Python in their software development processes.
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the overriding principle in distributed database design is that data should be stored at one central site. True or False?
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The statement that the overriding principle in distributed database design is that data should be stored at one central site is False.
Each remote site must operate numerous instances of the database management system (or several DBMSs) in order to support a distributed database. Different types of distributed database settings can be distinguished by how closely these various DBMS instances collaborate with one another and whether there is a master site that manages requests involving data from numerous locations.
The fundamental element of distributed database architecture is that data should be kept at the locations where it will be accessed the most often (other important considerations are security, data integrity, and cost). A distributed database is organized by a data administrator in a crucial and central manner such that it is dispersed rather than decentralized.
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Sigma solutions use hash algorithms in the communications between departments while transferring confidential files. A human resource employee informed you that one of the employees' salary statements sent from her end looks tampered with and requested your help. Which of the following tasks would enable you to identify whether the file is tampered with or not, and how will you make the determination?
Check the digest for the file size. If the digest file size is different from that of the original digest, it can be concluded that the file has been tampered with.
Check whether the original plaintext can be generated from the digest. If the original values can be generated and match the original file, the file has not been tampered with.
Check the file digest for alternate values. If the digest's alternate value is the same in the entire digest, the file can be confirmed to be not tampered with.
Check the digest of the file with the original digest. If the values are different, it can be confirmed that the file has been tampered with.
Answers
To identify whether the file is tampered with or not. Check the digest of the file with the original digest. If the values are different, it can be confirmed that the file has been tampered with.
Correct option is (A)
What is meant by hash algorithm?
A hashing algorithm is a mathematical operation that muddles and renders unintelligible data. Since hashing algorithms are one-way programmes, nobody else can decipher the text after it has been encrypted.
The hashing algorithms MD5, SHA-1, SHA-2, NTLM, and LANMAN are a few popular ones. MD5: This is the fifth version of the Message Digest algorithm. 128-bit outputs are produced by MD5. An extremely popular hashing algorithm was MD5.
What is the best hashing algorithm?
The National Institute of Standards and Technology (NIST) suggests using SHA-256 as opposed to MD5 or SHA-1, which is probably the most widely used option. A 256-bit hash value, or 64 hexadecimal digits, is what the SHA-256 algorithm produces.
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when configuring a server for a failover cluster, what needs to be validated before adding the server to the cluster? [choose all that apply]
Answers
Answer:
The hard drives are all similarly configured
The server has a network interface card configured the same as the other server in the cluster
The server has the same roles installed as other servers in the cluster
Explanation:
Before a server can be added to a failover cluster, the server needs to be configured the same as the servers in the cluster. This includes that the hard drives are all configured the same, identical network interface cards are present and configured for communication, and the same roles are installed on the server.
The Windows Server backup feature cannot be used for failover clustering.
If a local account is used for logging into the server, it will not have the correct permissions to setup the server for failover clustering.
T/F. in general, the design phase is accomplished by changing the configuration and operation of the organization's information systems to make them more secure.
Answers
False, in general, the design phase is accomplished by changing the configuration and operation of the organization's information systems to make them more secure.
What is design phase?
During the design phase, one or more designs are created that appear to be capable of producing the desired project outcome. The outputs of the design phase can include dioramas, sketches, flow charts, site trees, HTML screen designs, prototypes, picture impressions, and UML schemas, depending on the project's theme.
The project lifecycle's initial stage, project design is where concepts, procedures, resources, and deliverables are organised. A project design comes before a project plan because it provides a broad picture while the latter contains more specific details.
To convert the requirements into comprehensive and precise system design specifications is the goal of the design phase. The Development Team starts the Development Phase as soon as the design is accepted.
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What is word processing software used for?; Which is the correct example of word processing software?; Is word processing software True or false?; What are some of the common software applications of word processing that you use in your daily activities?
Answers
A word processing programmed is MS Word's. And is the most popular word processor, its true.
what is meant by software?Word processing is the use of a computer to create, edit, save, and print documents.Word processing requires the use of word processors, which are specialized pieces of software.There are numerous alternative word processor options outside the widely used Microsoft Word.Software is a collection of data and instructions that specify how to run your computer. To control computers and carry out particular activities, software is a collection of instructions, data, or programmers. Hardware, which describes a computer's external components, is the opposite of software. Applications, scripts, and other programmers that operate on a device are collectively referred to as "software." All of the programmers, processes, and routines involved in running a computer system are collectively referred to as software. The phrase was created to distinguish these directives from hardware.There are numerous alternative word processor options outside the widely used Microsoft Word.To learn more about software refer to:
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A technological challenge to information systems is the way characters are usually represented by in computers.
a. whole words b. bytes
c. Unicode d. bits
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The way characters are often represented by in computers presents a bytes technological barrier to information systems.
A byte is exactly what?The byte is the smallest addressable unit of memory in various computer systems because it was historically the amount of bits needed to encode a single character of text in a computer.Network protocol specifications such as The Internet Protocol (RFC 791) refer to an 8-bit byte as an octet to distinguish them from the ordinary 8-bit definition.Digital information is stored in units called bytes, which typically have eight bits.The abbreviation for a binary digit is a byte. One letter, one integer, or one special character can be stored in 8 bytes.Abbreviation for binary term, a type of storage device designed to contain a single character. On almost all modern computers, a byte is equal to 8 bits.To learn more about byte refer to:
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The RAND() function in excel models which of the following probability distributions?
a. Normal distribution with mean 0 and standard deviation 1
b. Uniform distribution with lower limit 0 and upper limit 1
c. Normal distribution with mean -1 and standard deviation 1
d. Uniform distribution with lower limit -1 and upper limit 1
Answers
The RAND() function in excel models Uniform distribution with lower limit 0 and upper limit 1. Hence, the right option is the option B.
What is excel?Microsoft's spreadsheet program Excel is a part of the Office family of products used for business purposes. Users can format, arrange, and compute data in a spreadsheet using Microsoft Excel.
Data analysts and other users can organize data using programs like Excel to make information easier to view as data is added or changed. In Excel, there are many boxes known as cells that are arranged in rows and columns. These cells contain data.
It is possible to use Excel with other Office applications because it is a component of the Microsoft Office and Office 365 suites. The spreadsheet application is accessible on the Windows, macOS, Android, and iOS operating systems.
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Write a program that reads a character, then reads in a list of words. The output of the program is every word in the list that contains the character at least once. Assume at least one word in the list will contain the given character.
Ex: If the input is:
z
hello zoo sleep drizzle
the output is:
zoo drizzle
Answers
A program is a specific set of ordered operations that a computer can perform.
What is the python program?Python is commonly used for website and software development, task automation, data analysis, and data visualization.Python coding styles are divided into four categories: imperative, functional, object-oriented, and procedural.The required program prints words from a list of given words that contain an occurrence of an inputted alphabet. The Python 3 program is as follows:
character = input("Enter the character: ")
#prompts use of chosen character.
words = input("Enter words: ")
#invites the user to enter a list of words.
split_words = words.split()
#divide the words in the given list.
for w in split_words:
#Iterate over the splitted words.
If character in w:
#if the character appears more than once in the word.
print(w)
#The word should be printed.
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Which of the following functions can a data analyst use to get a statistical summary of their dataset? Select all that apply.
1. cor()
2. sd()
3. ggplot2()
4. mean()
Answers
Packages are organized collections of R functions, data, and compiled code. A set of commands that are not included in the core set of R functions are made available to you when you install a package. The library is the name of the directory where packages are kept.
What does the R programming library () do?
Packages are collections of R functions, compiled code, and example data in the R programming language. In the R environment, these are kept in a directory called "library." R installs a number of packages by default when it is installed.
What is the purpose of R Markdown?
The file type R Markdown is used to create dynamic documents in R. Markdown is an easy-to-write plain text language used in R Markdown documents.
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which of the following loops is best implemented with a while loop? group of answer choices checking to see if a list of integers contains the value 12. counting how many keys in a dictionary start with the letter 'a'. asking the user to enter positive integers, exiting by entering -1. looping through the characters in a string, and displaying 'yes' if it contains a vowel.
Answers
Looping through the characters in a string, and displaying 'yes' if it contains a vowel is the following loops is best implemented with a while loop.
The process is run continually using which of the following loops?the loop while(). For as long as the controlling expression is true, the loop's contents—which, as always, may be a single statement or a block—are executed. While the condition is true, the while() loop will continue to run (non-zero).
How can a while loop be broken?You can use the endloop, continue, resume, or return statement to exit a while loop. endwhile; The loop is closed if the name is empty and no further statements are executed during that iteration of the loop.
Which looping technique should you employ when?The for loop is the finest method when it comes to iterations.
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the php function that is executed is a connection to a database cannot be made is the____ function. die | isset| end | connect.
Answers
The PHP function that is executed is a connection to a database that cannot be made is the die() function.
An error is an undesirable programming outcome. The mistake is a subset of the error. Error management is a vital component of any website or programme.
Error handling is a mechanism for identifying errors that a programme makes and taking appropriate corrective action. This can be done by utilising die() method.
When a programming problem occurs, the software will halt further code execution and display the appropriate error message to the user. The die() function displays a message and terminates the running of the programme.
The connect() function in PHP is one that is used to establish a connection to a database.
The end() method in PHP is used to locate the final element of the specified array. The end() function updates an array's internal pointer to refer to the final element and returns that element's value.
The isset() function examines whether a variable is set, which implies that it has to be declared and is not NULL. If the variable is present and not NULL, this function will return true; otherwise, it will return false.
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Better Design Furniture has imported three refurbished medium sized electricity generators. The manager, Sam, was advised that the maximum running time for each generator is eight (8) hours. This is ideal for the company because the plant has to run for a complete twenty four hour period. With three generators running for eight hours each, this equates to twenty four (24) hours. Sam is now in dire need of a circuit that will start-up and shutdown each generator at different eight hour intervals.
According to Sam, the generators should work as follows: • Generator A 12:00 AM - 8:00 AM
• Generator B 8:00 AM - 4:00 PM • Generator C 4:00 PM - 12:00 AM
Sam has recruited your group as interns with the responsibility of designing the system that will execute the above functions. In designing the system, the group should ensure that generators are not allowed to run simultaneously, as this will result in serious damages to Sam’s equipment. In addition, there should be a disable switch which disables the power coming from the generators and enables the use of the Jamaica Public Service’s electric to power the equipment. This is necessary for the technicians to service the generators.
NB: Your counter/counting system should count in minutes and hours that is no need to worry about the seconds.
Answers
thx for the points but anyways how much v buck do you have pls give me some
A(n) ________ contains one or more statements that are executed and can potentially throw an exception.
a. exception block b. catch block c. try block d. error block
Answers
An try block contains one or more statements that are executed and can potentially throw an exception.
There may be code in a software that we are writing that we believe could throw an exception. For instance, we might be concerned that the code contains a "division by zero" action that will result in an exception.
Keep in mind that if an exception arises at a particular sentence in a try block, the remaining code is not run.
How to control try block?
The control leaves the try block and the program ends abruptly when an exception occurs at a specific statement within the try block. We must "handle" this exception in order to stop the application from ending suddenly. The "catch" keyword is used to handle this. Therefore, a catch block always comes after a try block.
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Programming Project: write a function that takes in a list (L) as input, and returns the number of inversions. An inversion in L is a pair of elements x and y such that x appears before y in L, but x > y. Your function must run in -place and implement the best possible algoritm of time complexity.
def inversions(L: List) -> int:
'''finds and returns number of inversions'''
Answers
To counts values, we define a loop in a loop we use if statement that counts the value that how many time it occurs in a string value and return its value.
What is an example of an algorithm?This is my take on the question! I had no idea what was meant by the housekeeping(), detailLoop(), endOfJob() functions provided in their source code.What my code does should be pretty explanatory via the comments and variable names within it — but feel free to make a comment to ask for more info! I've attached a screenshot of my code because I think it's easier to read when it's syntax highlighted with colors.In the above C++ programming language program we define a function that is "CountCharacters". Inside function parameters, we pass two parameters that are "userChar and userString". The userChar is a char variable that holds single character value and userString is a string variable that holds a string value.In the function, we define an integer variable that is "count". This variable counts the match value and returns its value.In the main method, we define these variables ("userChar and userString") and assign values that are "a and Clanguage " and call the function and print function return value.#include <iostream>
#include <string>
// R, R, R, L, L, L, R, L, R, R, L, X ==> 6R 5L X
void getLeftOrRight(std::string &l_or_r, int &total_l, int &total_r) {
// notice how the above line matches: getLeftOrRight(leftOrRight, leftTotal, rightTotal);
// the values provided from the loop are given nicknames for this function getLeftOrRight()
if (l_or_r == "L") { // left-handed
total_l++;
} else if (l_or_r == "R") { // right-handed
total_r++;
} else { // quit
// option must be "X" (quit), so we do nothing!
}
return; // we return nothing, which is why the function is void
}
int main() {
std::string leftOrRight = ""; // L or R for one student.
int rightTotal = 0; // Number of right-handed students.
int leftTotal = 0; // Number of left-handed students.
while (leftOrRight != "X") { // whilst the user hasn't chosen "X" to quit
std::cout << "Pick an option:" << std::endl;
std::cout << "\t[L] left-handed\n\t[R] right-handed\n\t[X] quit\n\t--> ";
std::cin >> leftOrRight; // store the user's option in the variable
getLeftOrRight(leftOrRight, leftTotal, rightTotal); // call a function, and provide it the 3 arguments
}
std::cout << "Number of left-handed students: " << leftTotal << std::endl;
std::cout << "Number of right-handed students: " << rightTotal << std::endl;
return 0;
}
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Which of the following is a best practice to protect information about you and your organization on social networking sites and applications?
Answers
The best technique to prevent unauthorized access to your data is encryption. The process of converting data into a different format that can only be read by someone with access to a decryption key is known as encryption.
What is encryption?Data can be scrambled using encryption so that only authorized parties can decipher it. Technically speaking, it is the process of changing plaintext that can be read by humans into ciphertext, which is incomprehensible text.
In plainer terms, encryption changes readable data to make it seem random. A cryptographic key, or collection of numbers that the sender and the recipient of an encrypted message both agree upon, is needed for encryption.
Despite the fact that encrypted data appears random, encryption works in a logical, predictable manner, making it possible for someone who gets encrypted data and has the proper key to decrypt it and restore it to plaintext.
A third party is very unlikely to crack the keys used in truly safe encryption because they are complex enough.
Hence, The best technique to prevent unauthorized access to your data is encryption.
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A(n) _____ is any artificial device that is able to perform functions ordinarily thought to be appropriate for human beings.
A) transformer
B) expert system
C) resistor
D) robot
E) just-in-time inventory system
Answers
a) transformer is any artificial device that is able to perform functions ordinarily thought to be appropriate for human beings.
What is artificial intelligence?Artificial intelligence (AI) is intelligence—perceiving, synthesizing, and inferring information—demonstrated by machines, as opposed to intelligence displayed by animals and humans. Example tasks in which this is done include speech recognition, computer vision, translation between (natural) languages, as well as other mappings of inputs. The Oxford English Dictionary of Oxford University Press defines artificial intelligence as:
the theory and development of computer systems able to perform tasks that normally require human intelligence, such as visual perception, speech recognition, decision-making, and translation between languages.
AI applications include advanced web search engines , recommendation systems, understanding human speech, self-driving cars, automated decision-making and competing at the highest level in strategic game systems.
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Which of the following is not an example of a factor used in multi-factor authentication? An ID card O A fingerprint O A captcha O A password
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The option that is not an example of a factor used in multi-factor authentication is option C: A captcha.
What does CAPTCHA mean?The process of establishing the veracity of a claim, such as the identity of a computer system user, is known as authentication. Authentication, as opposed to identification, is the process of confirming a person's or thing's identity.
To ascertain whether a user is human, a challenge-response test known as a CAPTCHA is often used in computing.
Note that a CAPTCHA only verify if you are human and it is not a type of authentication.
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Ying sends a program to a colleague for help in debugging it. The following message is returned: “You forgot to initialize the variable for the number of attempts.” How should this problem be fixed? (QUICK!!)
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Answer:
To fix this problem, the variable for the number of attempts should be initialized with a starting value, such as 0 or 1. This can be done by adding a line of code at the beginning of the program that assigns a value to the variable, like this:
attempts = 0 # Initialize variable for number of attempts
Answer:
A set the variable to a beginning value
Explanation:
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Answer each of the following True or False, no explanation needed. Assume the following languages are all over some fixed alphabet (a) Every subset of a regular language is regular. (b) If L and M are regular languages then L - M is regular. (c) If L is regular then so is {xy 2 € L and y L} (d) {w w=w"} is regular. (e) If L is a finite language then it is regular. (1) If L is a regular language then L" = { w w " E L} is regular.
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All finite languages are regular; in particular the empty string language {ε} = Ø* is regular. The other kind of examples consist the language including of all strings over the alphabet {a, b} which include an even value of as, or the language including of all strings of the shape: several as followed by several bs.
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Your server boots from a specialized disk array and the instructions require you to use the ______ command to create a RAM disk that contains a driver.
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Your server boots from a specialized disk array and the instructions require you to use the 'mkinitrd' command to create a RAM disk that contains a driver.
The 'mkinitrd' command constructs an initial image used by the kernel for preloading the block device modules, such as SCSI, IDE, or RAID, which are required to access the root filesystem. The 'mkinitrd' command automatically loads IDE modules, filesystem modules (such as ext3 and jbd), and all scsi_hostadapter entries in /etc/modprobe. Further, when a server is booted from a specialized disk array, it requires you to use the 'mkinitrd' command to generate a RAM disk that contains a driver.
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