Explain how the error card trick from the error detection lesson uses a parity scheme. Was it an even or odd parity scheme?.
Answers
The trick with the cards was the parity scheme as it added bits (row and column of other cards) to make each direction even, making it an even parity scheme.
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The required answer is the error card trick uses an odd parity scheme to detect errors in the sequence of bits represented by the deck of cards. The parity card, set based on the value of the data bits, helps identify whether an error has occurred by checking if the total number of bits with a value of 1 is odd or even.
The error card trick from the error detection lesson uses an odd parity scheme. In an odd parity scheme, an additional bit, called a parity bit, is added to a group of data bits. The parity bit is set in such a way that the total number of bits (including the parity bit) with a value of 1 is always an odd number.
In the error card trick, a deck of cards is used to represent a sequence of bits. Each card is assigned a value of 0 or 1, and the deck is arranged to form a sequence of data bits.
To implement the odd parity scheme, an additional "parity card" is introduced. The parity card represents the parity bit and is set based on the value of the data bits. If the total number of cards (including the parity card) with a value of 1 is even, the parity card is set to 1 to make the total odd. If the total number of cards with a value of 1 is already odd, the parity card is set to 0.
During the trick, the magician shows the deck of cards (including the parity card) to the audience and asks them to remember the sequence of bits. Then, the magician turns away and asks an audience member to secretly flip any one card, introducing an error into the sequence.
To detect the error, the magician checks the parity of the sequence. If the total number of cards with a value of 1 (including the parity card) is still odd, the magician knows that no error occurred. However, if the total number of cards with a value of 1 is now even, the magician can determine that an error has occurred. By revealing the flipped card, the magician can identify the position of the error.
By using the odd parity scheme, the error card trick effectively detects whether an error has occurred in the sequence of bits. If the parity of the bits is inconsistent, it indicates the presence of an error. This parity-based approach helps the magician identify the position of the error card and perform the trick successfully.
Therefore, the error card trick uses an odd parity scheme to detect errors in the sequence of bits represented by the deck of cards. The parity card, set based on the value of the data bits, helps identify whether an error has occurred by checking if the total number of bits with a value of 1 is odd or even.
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Related Questions
a small storage device that can be carried in a pocket
Answers
Answer:
USB is a small storage device that can be carried in a pocket
what is the purpose of the oculus in the pantheon? to provide support to the massive columns it is strictly a decorative feature to let light in the interior of the structure to provide support to the dome
Answers
The oculus in the pantheon is primarily a decorative feature to bring light into the interior of the edifice to support the dome; its primary function is to support the heavy columns with light security.
The sole light enters the Pantheon through a circular hole known as the oculus. The oculus's main function was to light up the interior for security of the temple, but it was also designed to allow people to look up at the stars. Over the years, a number of tales, astrological investigations, and oddities have developed around the Pantheon's oculus. A mediaeval folktale claims that the devil escaping from God's temple was responsible for its creation. The oculus's function is to provide natural light for the pantheon.
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The complete question is -
what is the purpose of the oculus in the pantheon?
Write a program to output The sum of the cubes of odd integers between 11 and 49
Answers
Answer:
779400
Explanation:
There are 20 odd integers between 11 and 49, they are 11, 13, 15, 17, 19, 21, 23, 25, 27, 29, 31, 33, 35, 37, 39, 41, 43, 45, 47, 49. There are 5 odd numbers before 11, and 25 odd numbers from 1 to 49.
Use the formula to calculate the sum
25^2 * (2 * 25^2 - 1) - 5^2 * (2 * 5^2 - 1)
= 25^2 * (2 * 625 - 1) - 5^2 * (2 * 25 - 1)
= 25^2 * (1250 - 1) - 5^2 * (50 - 1)
= 625 * 1249 - 25 * 49
= 780625 - 1225
= 779400
Verify:
11^3 + 13^3 + 15^3 + 17^3 + 19^3 + 21^3 + 23^3 + 25^3 + 27^3 + 29^3 + 31^3 + 33^3 + 35^3 + 37^3 + 39^3 + 41^3 + 43^3 + 45^3 + 47^3 + 49^3
= 1331 + 2197 + 3375 + 4913 + 6859 + 9261 + 12167 + 15625 + 19683 + 24389 + 29791 + 35937 + 42875 + 50653 + 59319 + 68921 + 79507 + 91125 + 103823 + 117649
= 779400
Here's a Python program that will output the sum of the cubes of odd integers between 11 and 49:
sum_of_cubes = 0
for i in range(11, 50):
if i % 2 == 1:
sum_of_cubes += i ** 3
print("The sum of the cubes of odd integers between 11 and 49 is:", sum_of_cubes)
This program initializes a variable called sum_of_cubes to 0, then uses a for loop to iterate through the range of numbers between 11 and 49. For each number in that range, it checks if the number is odd by using the modulus operator (%) to check if the number is divisible by 2 with a remainder of 1. If the number is odd, it adds the cube of that number to the sum_of_cubes variable.
Finally, the program prints out the total sum of the cubes of the odd integers between 11 and 49.
kaleb is looking at the list of wifi devices currently connected to the network. he sees a lot of devices that all appear to be made by the same manufacturer, even though the manufacturer name is not listed on the screen. how could he have determined that they were made by the same manufacturer?
Answers
Kaleb can determine that they were made by the same manufacturer by the use of numerous devices that have addresses ending in the same 24 bits. Thus, option (C) is correct.
What are the ways to identify the unknown devices?The ways to identify the unknown devices connected to individual's network are as follows:-
On any Windows, Linux, or macOS computer, launch the Terminal or Command window.Look up every network option, including the default gateway and IP address, using the command prompt.Type "ARP -a" to get a list of all IP addresses connected to your network.Nowadays, every router has a unique Wi-Fi password that is nearly hard to guess. It indicates that your strange gadgets are most likely items you've forgotten about, such as the DVR (perhaps a Free view or Sky box), a smart thermostat, plug, or other home automation appliance.
Hence, option (C) is correct.
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Your question was probably incomplete, the complete question was...
a. There are numerous devices that have the same OUI.
b. The first four characters are the same for numerous of the device MAC addresses.
c. There are numerous devices that have addresses ending in the same 24 bits.
d. There are numerous devices using the same Wi-Fi Channel.
when using sql to create a table, specifying the null property for a column indicates that only null values may be stored in that column. true or false
Answers
The given statement "when using sql to create a table, specifying the null property for a column indicates that only null values may be stored in that column" is FALSE because it indicates that the column is allowed to store NULL values, in addition to other data types.
It does not mean that only NULL values may be stored in that column. If you want to restrict a column to only accept non-null values, you can use the NOT NULL constraint during the table creation process, which enforces that every record in that column must contain a value.
It is important to note that allowing null values in a column can have implications for data integrity and querying, so it should be used carefully and only when necessary.
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Mention 2 precautionary
measures to be observed
when using ICT tools
Answers
Answer:
ICT is the abbreviated form of Information and Communication. It included different technologies like mobile phones, computers, USBs etc.
Following are two precautionary measures which should be observed when using any kind of ICT:
Use of Antivirus: It can used to protect anything placed inside the technology especially from hacking and viruses which can create many issues.Backup Data: Creating a backup of the data stored in the device is important as it can be recalled when the device malfunctions. Backup of the data can be created through using USBs, CDs etc or through cloud storageWhat is the Full form of DC?
Answers
Answer:
Deputy Commissioner.
Answer:
the full form of DC is deputy commissioner
(03.05 LC
A reliable textbook should contain references to (6 points)
O only primary sources
mainly secondary sources
O both primary and secondary sources
no more than two of each type of source
Helpppp plzzzzz
Answers
Answer:
B. both primary and secondary sources.
Explanation:
Information can be defined as processed data that can be used to perform specific tasks or job functions. The two (2) main sources of information are;
I. Primary source: this type of source comprises of raw information that are first-hand in nature i.e a personal experience or witness of an event (occurrence).
II. Secondary source: this type of source relies solely on the primary source for its information and as such it comprises of second-hand information provided by other authors or researchers.
A reliable source is an information source that is unbiased, trustworthy and reliable. Also, a reliable source is typically backed up by evidence from various information channels and should be accurate.
In order to validate a reliable source, it is necessary that the information provided is checked against other credible sources to verify its accuracy.
This simply means that, if you got an information (data) from any source such as newspaper, website, television, books, radio or anywhere else, you should confirm the credibility and reliability of these information by verifying from one or more sources listed in the reference.
Hence, a reliable textbook should contain references to both primary and secondary sources.
Additionally, references are citations or links to all of the sources from which an author, writer, or researcher got his or her information from. One important thing that references show a reader is that the information is well researched.
prepare a short report of some technological devices??
please help me brainliest
Answers
Answer:
Technology is the most useful form of science for the general population. In simple words, technology is when we take the concepts of science and transform them into gadgets and devices that are useful to us as human beings. When we look around us, almost everything is a result of or a form of technology.
For example, the device you are using right now is a form of technology made for communication, or the refrigerator in your kitchen is a use of science that helps to keep your food fresh and cool. With these examples, we see how dependent we are on technology and how important it is for us in our daily lives.
It isn’t easy to imagine our lives without using any form of technology. For the smallest of communications, we tend to turn to our mobile phones. Even most of the food we eat is packaged in factories using various technologies. Thus, imagining a life without technology is impossible. It is not only a fact of life but also a necessity for all of us.
In fact, the smartphone, that is, a mobile phone which can connect to the internet, is becoming one of the fastest-growing and most accessible forms of technology around the world. On a smartphone, you can click photographs, browse the internet, listen to music, and use social media. With the advent of smartphone technology, the practical purpose of not only communicating with your friends is met, but also so many others, as mentioned.
Thus, in today’s world, the importance of technology becomes more and more as the years pass. Scientists have done so much to advance humans using technology, and we still have a long way to go.
Explanation:
You are welcome! ;D
What is the return value of function call f1(1,4)?
int f1(int n, int m)
{
if(n < m)
return 0;
else if(n==m)
return m+ f1(n-1,m);
else
return n+ f1(n-2,m-1);
}
0
2
4
8
infinite recursion
Answers
The return value of function call f1(1,4) is 0. Therefore, option A is correct.
To determine the return value of the function call f1(1,4), let's trace through the code and evaluate the conditions step by step.
The function f1 is called with n = 1 and m = 4.
The first condition if (n < m) evaluates to true since 1 < 4.
In this case, the function returns 0.
Therefore, the return value of f1(1,4) is 0.
The given function f1 is a recursive function that calculates the sum of a series of numbers based on two parameters n and m. Let's break down the logic:If n is less than m, the function returns 0. This is the base case that terminates the recursion.If n is equal to m, the function recursively calls itself with n decremented by 1 and m remaining the same. The sum of the current m and the result of the recursive call is returned.If neither of the above conditions is met, the function recursively calls itself with n decremented by 2 and m decremented by 1. The sum of the current n and the result of the recursive call is returned.In the case of f1(1,4), the first condition is satisfied (1 < 4), so the function returns 0 without making any further recursive calls.Therefore, the correct answer is 0.
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2) Prompt the user for his/her favorite 2-digit number, and the output is the square root of the number.
Answers
num = int(input("What's your favorite 2-digit number? "))
print("The square root of {} is {}".format(num, (num**0.5)))
I hope this helps!
the main work area of the computer is the
Answers
Answer:
Desktop
Explanation:
The desktop is the main work area of your computer, and will likely be the most visited area of your computer. Your desktop appears every time you log into your account, and contains icons and shortcuts to your most used programs and files.
Refer to Example Code TFB: The assignment statement p-d; is legal even though p is not a Dog. True False
Answers
The assignment statement p-d; is not legal because p is not a Dog thus it is False.
In order for this statement to be legal, p must be a variable of the same type as d, which is a Dog. Otherwise, the statement will result in a type mismatch error. It is important to ensure that variables are of the correct type before performing operations on them, as this will prevent errors from occurring. Therefore, the correct answer to this question is False.
In the given example code TFB, the variables “d” and “p” are of different types: “d” is a Dog object, while “p” is a Poodle object. Therefore, the assignment statement “p-d;” is not legal, as it would result in a compile-time error because the types are not compatible. The correct way to assign a Poodle object to a variable of type Dog is to use an upcast, like this: “Dog d = new Poodle(…);”.
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Your question is incomplete but probably the full question is:
Example Code TFB Assume that Poodle is a derived class of Dog and that Dog d = new Dog(…) and Poodle p = new Poodle (…) where the … are the necessary parameters for the two classes. Refer to Example Code TFB: The assignment statement p-d; is legal even though p is not a Dog. True False
You are planning to write a guessing game program where the user will guess an integer between one and 20. Put the commented steps in the correct order.
The user will keep guessing until correct.
1. First ___ # Compare the user's answer to the correct number.
2. Second __# Give the user a hint as to whether their guess is too high or too low.
3. Third ___# Ask the user for a guess.
4. Fourth ___ # Generate a random number
(worth 90 points, need answer asap)
Answers
Answer:
1. Generate a random number
2. Ask the user for a guess.
3. Compare the user's answer to the correct number.
4. Give the user a hint as to whether their guess is too high or too
Explanation:
Leave a like and brainist if this helped
Answer:
First step >> Generate a random number
Second step >> Ask the user for a guess.
Third step >> Compare the user's answer to the correct number.
Fourth step >> Give the user a hint as to whether their guess is too high or too
TCH SYS Y DATA CLASS. . . A multi-leveled list is basically _____.
A. a paragraph
B. an outline
C. a document
Answers
Word indicates the size of the table by ____ at the top of the grid when dragging the pointer across a selection
Answers
When dragging the pointer across a selection in Word, the size of the table is indicated by a highlight box at the top of the grid.
The box shows the number of rows and columns that are being selected as the pointer moves over the cells. Once the desired size of the table is highlighted, the user can release the mouse button to create the table with the selected dimensions. This feature is useful for creating tables with specific sizes quickly and accurately. Additionally, Word provides options to adjust the size of the table after it has been created, such as adding or removing rows and columns or changing the width and height of individual cells.
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When you copy a formula
Question 10 options:
Excel erases the original copy of the formula
Excel edits cell references in the newly copied formula
Excel adjusts absolute cell references
Answers
what exactly are you doing
A ________ examines each part of a message and determines whether to let that part pass.
Answers
Answer:
packet-filtering firewall
Explanation:
A packet-filtering firewall examines each part of a message and determines whether to let that part pass.
15 POINTS
Which statement best describes what hardware is?
the electronic and mechanical parts of a computer device
the components that receive data from a computer
the electronic circuitry that executes instructions
the components that transform data into human-readable form
Answers
Answer:
A
Explanation:
The first statement "the electronic and mechanical parts of a computer device" best describes what hardware is.
Hardware refers to the physical components of a computer system, such as the motherboard, CPU, RAM, hard drive, and peripherals like the keyboard and mouse. These components are made up of electronic and mechanical parts that work together to receive, process, store, and output data.
leave a comment
Which technique helps designers achieve continuance in a design?
A.
grouping items
B.
pointing at items
O c. sorting colors
D.
resizing items
Answers
Answer:
c
Explanation:
I think it's c because they need o sort items to know where things are to design
Answer:
Pointing at items
Explanation:
I got it right on my test.
The rate of technological development is
Answers
Answer:
The systematic use of scientific, technical, economic and commercial knowledge to meet specific business objectives or requirements.
Explanation:
Which of the following types of authority allows input and suggestions from additional staff members, but does not guarantee implementation?
A. Department authority
B. Staff authority
C. Functional authority
D. Employer authority
Answers
A pedometer treats walking 1 step as walking 2.5 feet. Define a function named FeetToSteps that takes a double as a parameter, representing the number of feet walked, and returns an integer that represents the number of steps walked. Then, write a main program that reads the number of feet walked as an input, calls function FeetToSteps() with the input as an argument, and outputs the number of steps.
Answers
In computing, it should be noted that a program is a specific set of ordered operations that is given to the computer to perform. The program based on the information given is illustrated below
How to depict the program?The program will be:
import java.util.Scanner;
public class LabProgram {
public static int feetToSteps(double userFeet){
return (int) (userFeet/2.5);
}
public static void main(String[] args) {
Scanner in = new Scanner(System.in);
double userFeet = in.nextDouble();
int steps = feetToSteps(userFeet);
System.out.println(steps);
}
}
In conclusion, the program is shown above.
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a 201 status code is typically sent in response to what type of client requests? put and patch get and post put and post put and delete
Answers
The correct answer is: a 201 status code is typically sent in response to successful PUT and POST client requests.
The HTTP protocol uses status codes to communicate the outcome of a client's request to the server. A 201 status code specifically indicates that the request has been fulfilled and a new resource has been created, as a result of the client's PUT or POST request.
The 201 status code indicates that a client request has been successfully processed, and a new resource has been created as a result. This status code is commonly associated with the HTTP methods PUT and POST, as these methods are used to create or update resources on the server.
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True or False: A ruler is used to measure units of length, inches, feet
and yards.
Answers
Answer:
True
Explanation:
Rulers are used to measure relatively small increments including centimeters, inches, feet and even yards (yardsticks).
Biometric devices are often associated with computer and data security. True False
Answers
Answer:
True
Explanation:
Can you guys help me with this coding assignments?
Answers
Explanation:
x ==50
while x< 100;
x -= 1
After a new technology is purchased, what are some additional cost that must be incorporated into an upgrade budget.
Answers
Answer:
everything
Explanation:
what is the output
a = 10
b = 23
print (a+b * a)
Answers
Answer:
240 is the output.
hope it will help you.
Information systems degree programs typically fall into the computer, business, or _____ category. Question 4 options: a) management b) technology c) media d) social
Answers
Answer:
management
Explanation: