Referring to the information above, if we had used the more accurate software approximation to the degrees of freedom, we would have used wh ich of the following for the number of degrees of freedom for the t procedures? A) 199 B) 198 C) 184 D) 99
Answers
B) 198
Referring to the information above, if we had used the more accurate software approximation to the degrees of freedom, we would have used which of the following for the number of degrees of freedom for the t procedures.
If the more accurate software approximation to the degrees of freedom had been used, the number of degrees of freedom for the t procedures would have been 198
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Related Questions
you are multiplying two value 4 and -5 using a 32-bit signed multiplier. assume the result is stored in two 32-bit registers hi and lo. hi is holding higher bits and lo is holding lower bits of the result. in this case, if you print decimal value of hi and lo in integer format (i.e. without any decimal point), what value will you print?
Answers
The multiplication of 4 and -5 using a 32-bit signed multiplier would result in -20. The 32-bit registers, hi and lo, store the higher and lower bits of the result, respectively.
When printing the decimal value of hi and lo in integer format, we would print -20. The value stored in the registers represents the signed binary representation of the result. By interpreting the binary value as a signed integer, we obtain the decimal value of -20.
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Which statement is not true for a good algorithm?
A. It is clear and cannot be interpreted in more than one way by
different people or machines.
B. It successfully solves the desired problem or performs the desired
task.
C. It can perform a task or solve a problem even if various inputs are
involved.
O D. It uses more resources and more time than it needs to.
Answers
Answer:
D. It uses more resources and more time than it needs to.
Explanation:
A, B, and C each show the workload of an algorithm in positive light. However, D shows it using more resources and time than it needs to; something a "good" algorithm would not do.
Emma is creating a database to track sales. She wants to be able to sort by price and sales associate. And she would like to look up the barcode number and the description. What fields should she have in her database?.
Answers
Emma should have barcode number, description, price, and sales associate fields in her database.
What is field in database?A database is a collection of information that has been organized for easy access, management, and updating. Computer databases are typically used to store aggregations of data records or files containing information such as sales transactions, customer data, financials, and product information.A field database is one in which the data under information, email address, and phone number are stored in a field of a row that can also contain other fields such as address or city information in a table named customer contact.The fields are represented by the columns. The field will correspond to data such as ID, color, and postcode. For example, if you have a customer record that includes their name, address, and phone number, each of those pieces of information is considered a field.The complete question:
"Emma is creating a database to track sales. She wants to be able to sort by price and sales associate. And she would like to look up the barcode number and the description. What fields should she have in her database?
1.sales associate and barcode number
2.sales associate, price, and description
3.barcode number, description, price, and sales associate
4.product number, description, price, sales associate, and profit."
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File type uploads accepted for this assignment is either docx or pdf files. 1. Consider a disk with the following characteristics (these are not parameters of any particular disk unit): block size B=512 bytes, number of blocks per track =20, number of tracks per surface =400. A disk pack consists of 15 double-sided disks. (This problem assumes a simplified version of the disk model which doesn't take interblock gap size into consideration. In other words, interblock gap size =0 ) (a) What is the total capacity of a track? (b) How many cylinders are there? (c) What is the total capacity of a cylinder? (d) Suppose the disk drive rotates at a speed of 2400rpm (revolutions per minute); what is the block transfer time btt in msec ? What is the average rotational delay rd in msec? (e) Suppose the average seek time is 30msec. How much time does it take (on the average) in msec to locate and transfer a single block given its block address? (basing on the rd and btt you calculated in problem d) (f) Calculate the average time it would take to transfer 20 random blocks and compare it with the time it would take to transfer 20 consecutive blocks. (basing on the assumptions in problem d and e) 2. What are the main goals of the RAID technology? How does it achieve them?
Answers
The total capacity of a track is 10,240 bytes. The number of cylinders is 12,000. The total capacity of a cylinder is 20,480 bytes. Block transfer time is 409.6 msec. The average rotational delay is 13.75 msec. Time taken to locate and transfer a single block is 453.35 msec. Time taken to transfer 20 random blocks and 20 consecutive blocks is 8319.05 msec. Main goals of RAID are: Data redundancy, Increased reliability, Increased performance, Cost-effective storage.
Part 1:
(a) The total capacity of a track:
Number of blocks per track = 20, block size B = 512 bytes.
So, the capacity of a track = 20 × 512 = 10,240 bytes.
(b) The number of cylinders:
The number of cylinders per surface is 400. The disk pack consists of 15 double-sided disks.
Therefore, the total number of cylinders = 400 × 2 × 15 = 12,000 cylinders.
(c) The total capacity of a cylinder:
A cylinder comprises of all the tracks that exist on the same radius on all surfaces. The capacity of a cylinder would be equal to the total capacity of all the tracks on all the surfaces of the cylinder.
The number of tracks per cylinder = Number of surfaces = 2.
Therefore, the total capacity of a cylinder = 2 × 10,240 bytes = 20,480 bytes.
(d) Block transfer time btt in msec:
The block transfer time (btt) depends on the rotation speed of the disk, block size, and the number of sectors per track. Given, disk rotates at 2400rpm.
The time taken for one revolution = 60 sec/2400 rpm = 1/40 sec = 25 msec.
Thus, the speed of the disk is 1/25 msec per revolution.
Each track has 20 sectors, so the time taken for one sector to pass under the read-write head = 25/20 = 1.25 msec.
Thus, the block transfer time (btt) = 512/1.25 = 409.6 msec.
The average rotational delay (rd) in msec: The average rotational delay depends on the time required to position the desired sector under the read-write head and the time required for the disk to rotate that sector to the read-write head.
The time required to position the desired sector = 1/2 revolution.
The time required for the disk to rotate the sector = 1/20 revolution.
Thus, the total rotational delay = (1/2 + 1/20) × 25 = 13.75 msec.
(e) Time taken to locate and transfer a single block:
The total time taken to locate and transfer a single block is equal to the sum of the average seek time, average rotational delay, and block transfer time.
Given, the average seek time is 30 msec.
Thus, the time taken to locate and transfer a single block = 30 + 13.75 + 409.6 = 453.35 msec.
(f) Time taken to transfer 20 random blocks and 20 consecutive blocks:
For 20 random blocks:
Time taken to transfer the first block = 30 + 13.75 + 409.6 = 453.35 msec.
Time taken to transfer the next block = 13.75 + 409.6 = 423.35 msec.
Similarly, time taken to transfer the next 18 blocks = 423.35 msec.
Thus, the total time taken to transfer 20 random blocks = 453.35 + 18 × 423.35 = 8319.05 msec.
For 20 consecutive blocks:
The time taken to transfer each block = 13.75 + 409.6 = 423.35 msec.
Thus, the total time taken to transfer 20 consecutive blocks = 20 × 423.35 = 8467 msec.
Part 2:
RAID (Redundant Array of Independent Disks) is a data storage technology that combines multiple disk drives into a logical unit for the purpose of data redundancy, performance improvement, or both.
RAID technology achieves the following main goals:
Data redundancy: It involves storing redundant data across multiple disks, to protect against data loss due to drive failures. Increased reliability: RAID ensures that data is always accessible, even if one or more disks fail. Increased performance: RAID allows data to be accessed more quickly by accessing multiple disks simultaneously. Cost-effective storage: RAID enables users to store large amounts of data across multiple, smaller disks, which is more cost-effective than buying a single large-capacity disk.RAID achieves these goals through various methods of data organization and data protection techniques, such as mirroring, striping, and parity. RAID can be implemented in various configurations called RAID levels, each with its own benefits and limitations.
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Data must be organized based on the sensitivity of the information. In the military, creators of sensitive information would officially label data as which of the following? (Select all that apply.)
A- Secret
B- Non-classified
C- Classified
D- Top Secret
Answers
Secret and Top-Secret.
Which one of the following raises security issues when a new app is installed on a smart phone?saving of data.Whether the data you keep on the phone is available to other apps is the most frequent security risk for an Android application.
What three types of information security are there?The three fundamental components of an information security concept known as the CIA triad are confidentiality, integrity, and availability.
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Truck repair shops tend to use dot matrix printers to produce their invoices. Identify two advantages of using a dot matrix printer rather than a laser printer in this environment
Answers
Answer:
Explanation:
The Dot matrix printers are cheaper and even more easily available in the market when compared to the laser printers.
Also, the Dot printers can make carbon copies of the print-out, the non-impact printers can't do this.
Worthy of mention is that the printing costs of Dot printers are comparably lower when compared to other printers like Laser printers
What is HTML? (list down any 5 points)
Answers
Answer:
The HyperText Markup Language, or HTML is the standard markup language for documents designed to be displayed in a web browser. It can be assisted by technologies such as Cascading Style Sheets and scripting languages such as JavaScript.HyperText Markup Language (HTML) is the set of markup symbols or codes inserted into a file intended for display on the Internet. The markup tells web browsers how to display a web page's words and images.
Explanation:
If this doesn't answer your question tell me and i'll fix it.
a precise, systematic method for producing a specified result is a(n):
a. database
b. computation
c. algorithm
d. software agent
Answers
A precise, systematic method for producing a specified result is an algorithm. The correct answer is (c).
An algorithm is a precise, step-by-step method for performing a specific task or problem-solving. It is a set of rules or instructions that can be followed to solve a problem or produce a particular outcome. Algorithms are commonly used in computer science, mathematics, and engineering, and are often expressed using programming languages. They can range from simple to complex and can be used to solve a wide range of problems, such as sorting and searching data, encryption and decryption, and machine learning.
Option C, algorithm, is the correct answer as it is a well-defined, systematic approach to solving a problem or producing a desired output. It is a fundamental concept in computer science and other fields where problem-solving is required. The other options are not precise methods for producing a specified result; a database is a collection of related information, computation is a general term for performing calculations, and a software agent is a program designed to perform tasks on behalf of a user.
The correct answer is (c) algorithm.
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Please provide me a step by step and easy explanation as to why the following code is the solution to the prompt. Please be specific and showing examples would be much appreciated. Also, please be mindful of your work, since I have experience of receiving answers that seems like the "expert" didn't even read the question. Thank you.
Write a function, quickest_concat, that takes in a string and a list of words as arguments. The function should return the minimum number of words needed to build the string by concatenating words of the list.
You may use words of the list as many times as needed.
If it is impossible to construct the string, return -1.
def quickest_concat(s, words):
memo = {}
result = _quickest_concat(s, words, memo)
if result == float('inf'):
return -1
else:
return result
def _quickest_concat(s, words, memo):
if not s:
return 0
if s in memo:
return memo[s]
result = float('inf')
for w in words:
if s.startswith(w):
current = 1 + _quickest_concat(s[len(w):], words, memo)
result = min(result, current)
memo[s] = result
return result
To be more specific, I don't understand the purposes of memo, float('inf'), and min(), etc, in this function.
Answers
memo = {}
result = _quickest_concat(s, words, memo)
if result == float('inf'):
return -1
else:
return result
The quickest_concat function is the main function that takes in a string s and a list of words words. It initializes a dictionary memo to store previously computed results for optimization. It then calls the helper function _quickest_concat to calculate the minimum number of words needed to build the string s from the list of words.
def _quickest_concat(s, words, memo):
if not s:
return 0
if s in memo:
return memo[s]
result = float('inf')
for w in words:
if s.startswith(w):
current = 1 + _quickest_concat(s[len(w):], words, memo)
result = min(result, current)
memo[s] = result
return result
The _quickest_concat function is a recursive helper function that performs the actual computation. It takes the string s, the list of words words, and the memo dictionary as arguments.
The base case if not s: checks if the string s is empty. If it is, it means we have successfully built the entire string, so we return 0 (no additional words needed).
The next condition if s in memo: checks if the result for the current string s has already been computed and stored in the memo dictionary. If it is, we simply return the precomputed result, avoiding redundant computations.
If the current string s is not in the memo dictionary, we initialize the result variable with a large value float('inf'), representing infinity. This value will be updated as we find smaller values in subsequent iterations.
We iterate through each word w in the list of words. If the string s starts with the word w, it means we can concatenate w with the remaining part of the string.
We recursively call _quickest_concat on the remaining part of the string s[len(w):] and add 1 to the result since we have used one word.
We update the result variable with the minimum value between the current result and the newly computed current value. This ensures that we keep track of the smallest number of words needed to construct the string s.
Finally, we store the result in the memo dictionary for future reference and return the result.
(In Summary) The quickest_concat function takes in a string and a list of words and calculates the minimum number of words needed to construct the string by concatenating words from the list. The code uses recursion, memoization, and comparison with float('inf') and min() to efficiently find the solution while avoiding unnecessary computations.
The use of "memo", "float('inf')", and "min()" in the provided code is to optimize the computation by storing intermediate results, handling special cases, and finding the minimum value respectively.
What is the purpose of "memo", "float('inf')", and "min()" in the given code?In the provided code, the variable "memo" is used as a memoization dictionary to store previously computed results. It helps avoid redundant computations and improves the efficiency of the function. By checking if a specific string "s" exists in the "memo" dictionary, the code determines whether the result for that string has already been computed and can be retrieved directly.
The value "float('inf')" is used as an initial value for the variable "result". It represents infinity and is used as a placeholder to compare and find the minimum number of words needed to construct the string. By setting the initial value to infinity, the code ensures that the first calculated result will be smaller and correctly updated.
The "min()" function is used to compare and find the minimum value among multiple calculated results. In each iteration of the loop, the variable "current" stores the number of words needed to construct the remaining part of the string after removing the matched prefix.
The "min()" function helps update the "result" variable with the minimum value obtained so far, ensuring that the function returns the minimum number of words required to build the string.
By utilizing memoization, setting an initial placeholder value, and finding the minimum value, the code optimizes the computation and provides the minimum number of words needed to construct the given string from the provided list of words.
Memoization, infinity as a placeholder value, and the min() function to understand their applications in optimizing algorithms and solving similar problems.
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After the program runs, what is the value of y?
def print_sum(num1, num2): print(num1 num2) y = print_sum(4, 5)
Answers
After the program runs, the value of y will be None.
Here's the breakdown:
1. The function `print_sum` is defined, which takes two arguments `num1` and `num2`.
2. Inside the function, the statement `print(num1 num2)` tries to concatenate `num1` and `num2`, but it is missing the concatenation operator (`+`). So, this line will cause a syntax error.
3. Then, the variable `y` is assigned the value of `print_sum(4, 5)`. When this line is executed, the `print_sum` function is called with the arguments 4 and 5.
4. Since there is a syntax error in the `print_sum` function, it will not return any value. Therefore, the value of `y` will be None.
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the secret affairs of the 3rd generation chaebol raw
Answers
The third generation chaebols, which refer to the heirs and successors of major South Korean conglomerates, have been embroiled in a number of secret affairs that have attracted significant attention. These chaebols, often wielding immense economic and political power, have been known to engage in illicit activities behind closed doors.
One common secret affair involves financial irregularities and embezzlement. The chaebol scions have been accused of misusing company funds for personal gains, diverting profits into offshore accounts, and manipulating financial statements to deceive shareholders and investors.
Another secret affair is the exploitation of their influence for personal and political gain. Chaebols have been found to engage in bribery and corruption, using their wealth and connections to secure favorable business deals and government contracts.
Additionally, illicit love affairs and scandals have plagued the lives of some chaebol heirs, leading to personal turmoil and public scrutiny. These secretive relationships often involve high-profile individuals, further fueling media attention and public fascination.
In summary, the secret affairs of the third generation chaebols encompass financial improprieties, corruption, and personal scandals. These activities not only undermine the integrity of the conglomerates but also have wider implications for the economy and society at large.
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What are the potential consequences of the secret affairs involving the third generation chaebols on the South Korean economy and society?
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this will be deleted when clearing the contents of a cell
Answers
"Cell Value" will be deleted when clearing the contents of a cell in a spreadsheet.
What is Cell Value in Spreadsheets?The cell's value is the total of the values in all enlarged data cells. For example, cell A1's value is the sum of the values in the purple-outlined cells (1+2+5+6+9+10=33), while cell A2's value is the total of the values in the blue-outlined cells (13+14+17+18=62).
When you work with Excel, you will enter data—or content—into cells. A worksheet's basic building components are cells. To compute, analyze, and organize data in Excel, you'll need to understand the fundamentals of cells and cell content.
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What is the purpose of a mail merge field?
to set up placeholders in a document where data will be inserted
O to create tables that hold the list of data
O to be used in a document
O to create preset styles for text that is
O to be inserted into a document
O to insert markers that indicate where paragraphs begin in a document
Answers
Answer:
to set up placeholders in a document where data will be inserted
To set up placeholders in a document where data will be inserted.
What is Mail merge field?MergeField is a Field element that includes a name-based reference to a data field.
The data field information replaces the merge field when values from a data source are mail blended into a template document. The corresponding article, Mail merging, has further details on the mail merging feature.
Additionally, an address block or greeting line are not required to have a merge field like first name. Insert the First_Name merge field alone if you wish to add recipients' first names to a document for personalization.
Therefore, To set up placeholders in a document where data will be inserted.
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use humorous and monster in a sentence.
Answers
Answer: Here are a few...
1) The monstrous elephant trampled through the jungle crushing everything in its path.
2) Because it was so monstrous, the maid often got lost in the massive home she cleaned.
3) Monstrous amounts of foods are needed to feed the hundreds of refugees who showed up at the soup kitchen.
Explanation:
I hope this helps :D
On march 12, medical waste services provides services on account to grace hospital for $9,400, terms 2/10, n/30. grace pays for those services on march 20.
Answers
The allowed discount was $276. while Mar. 12 Dr. Receivables $9,200 Cr. $9,200 in service revenue and on Mar. 20 Dr. Cash $9,200 (97%), $8,924.
Account receivable is the term used to describe the company's legally enforceable demand for payment for the goods and services it has provided. Receivables are categorized as a current asset.
the process of creating journal entries
Mar. 12 Dr. Receivables $9,200 Cr. $9,200 in service revenue (To record service revenue)
Mar. 20 Dr. Cash $9,200 (97%), $8,924
Dr Discount and Allowances $276 (3 % $9,200) Cr. $9,200 in accounts receivable (To record collection from receivables)
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solve plz
Jenae helps maintain her school web site and needs to create a web site poll for students. Which tool will she use?
JavaScript
HTML
CSS
Text editor
Answers
Answer:
HTML
Explanation:
HTML is used is making web pages.
Answer:
what
Explanation:
Give the usage and syntax of AVERAGE function.
Answers
Helllppppppp plzzzzzzzz
Answers
Answer:
i help you
ife ifrt ksd
its a study meeting of girls i am also girl here we only study boy were not allowed because he disturb here we only study its safe meeting of girl
the first webpage of a website is called
Answers
Answer:
A home page or The World Wide Web project
Explanation:..
How do you access the
internet in your school and at home?
Answers
True or False: Python code can include a script that returns the operating system platform
your code is running on with the .sys
Answers
True
import sys
print(sys.platfom)
This will print, to the console, which type of platform is running.
what is your favorite coler and what do you like to do and
Answers
Answer:
Orange
Explanation:
I like orange because its vibrant.
write a note on secondary storage
Answers
Answer: Storage devices are non-volatile devices. That means that when the power is removed from them, for example, when you switch your computer off, they retain their contents (unlike RAM, which is volatile – it loses its contents). You can then retrieve the contents next time you switch your computer on. Storage devices can be used to hold operating systems, applications and files, amongst other types of software. They are simply big suitcases – used only for storage. We have already seen that when you want to use an application kept on a storage device, it has to be moved to RAM before you can start using it. This applies to the operating system, your files and any other category of software. For this reason, RAM is sometimes known as Primary Memory whereas storage devices are often referred to as Secondary Storage devices.
A testing lab wishes to test two experimental brans of outdoor pain long each wiil last befor fading . The testing lab makes six gallon s of each paint to test. The resultare Shown to see how
Answers
Answer:
The answer is "\(\bold{Brand \ A \ (35, 350, 18.7) \ \ Brand \ B \ (35, 50, 7.07)}\)"
Explanation:
Calculating the mean for brand A:
\(\to \bar{X_{A}}=\frac{10+60+50+30+40+20}{6} =\frac{210}{6}=35\)
Calculating the Variance for brand A:
\(\sigma_{A}^{2}=\frac{\left ( 10-35 \right )^{2}+\left ( 60-35 \right )^{2}+\left ( 50-35 \right )^{2}+\left ( 30-35 \right )^{2}+\left ( 40-35 \right )^{2}+\left ( 20-35 \right )^{2}}{5} \\\\\)
\(=\frac{\left ( -25 \right )^{2}+\left ( 25 \right )^{2}+\left ( 15\right )^{2}+\left ( -5 \right )^{2}+\left ( 5 \right )^{2}+\left ( 15 \right )^{2}}{5} \\\\ =\frac{625+ 625+225+25+25+225}{5} \\\\ =\frac{1750}{50}\\\\=350\)
Calculating the Standard deviation:
\(\sigma _{A}=\sqrt{\sigma _{A}^{2}}=18.7\)
Calculating the Mean for brand B:
\(\bar{X_{B}}=\frac{35+45+30+35+40+25}{6}=\frac{210}{6}=35\)
Calculating the Variance for brand B:
\(\sigma_{B} ^{2}=\frac{\left ( 35-35 \right )^{2}+\left ( 45-35 \right )^{2}+\left ( 30-35 \right )^{2}+\left ( 35-35 \right )^{2}+\left ( 40-35 \right )^{2}+\left ( 25-35 \right )^{2}}{5}\)
\(=\frac{\left ( 0 \right )^{2}+\left ( 10 \right )^{2}+\left ( -5 \right )^{2}+\left (0 \right )^{2}+\left ( 5 \right )^{2}+\left ( -10 \right )^{2}}{5}\\\\=\frac{0+100+25+0+25+100}{5}\\\\=\frac{100+25+25+100}{5}\\\\=\frac{250}{5}\\\\=50\)
Calculating the Standard deviation:
\(\sigma _{B}=\sqrt{\sigma _{B}^{2}}=7.07\)
2.5 Code: Practice Question 1
Answers
Answer:byways the question?
Explanation:
Servo Robots use Pmove or point move to program the robots movements. The points are most often recorded using a __________.
Answers
Servo Robots use Pmove or point move to program the robots movements. The points are most often recorded using a teach pendant.
What is a teach pendant?A teach pendant is a handheld device that is used to program and control industrial robots. Teach pendants are used to program robot movements by using a method called “Teach-in.”A robot that is programmed to move and perform tasks on its own, without being taught, is referred to as an autonomous robot. To program a robot using a teach pendant, the operator moves the robot through a series of positions.
The positions of each joint are then recorded by the robot controller. These positions are stored as points in the robot’s memory.When a robot is programmed using the teach pendant, the operator is required to move the robot manually through the desired positions. This can be done by using a joystick or other controls on the teach pendant. Once the robot has been moved to the desired position, the operator presses a button to record the position.
The robot controller then stores this position as a point in its memory. The operator then moves the robot to the next position and repeats the process. This process is repeated until all desired positions have been recorded in the robot’s memory.
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A user is redesigning a network for a small company and wants to ensure security at a reasonable price. The user deploys a new application-aware firewall with intrusion detection capabilities on the ISP connection. The user installs a second firewall to separate the company network from the public network. Additionally, the user installs an IPS on the internal network of the company. What approach is the user implementing
Answers
"Layered approach" will be the appropriate response.
The method that divides the OS into multiple layers, is a layered approach. The latter empowers application developers to modify their internal functions as well as enhances adaptability.The network idea throughout this method is generally separated into multiple levels and a certain responsibility or activity is delegated to every other layer.
Thus the above is the right answer.
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Can you change saving passenger details on southwest airlines?
Answers
Yes, you can change the saved passenger details on Southwest Airlines.
Follow these steps to change the saved passenger:Log in to your account on the Southwest Airlines website.Go to the "My Account" section.Click on "Manage Travelers" under the "My Preferences" section.Select the traveler whose details you want to change.Make the necessary changes to the traveler's information.Click on "Save Changes" to update the information.By following these steps, you can easily change the saved passenger details on Southwest Airlines.
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Tara needs to select all of the text in a Word document. Which keyboard shortcut will achieve this goal? Ctrl A Ctrl E Ctrl Esc Ctrl R.
Answers
Which securities protect data through processes, procedures,decisions,and user pernissions. Determines where and how data can be shared or stored
Answers
Answer:
Data can be stored on storage devices.
Explanation:
Network security, Application security and information security are the securities that protect data. Data can be stored on storage devices such as hard disk drives, solid state drives, external hard drives, USB flash drives and SD cards etc. Hard disk drives, floppy disks and tapes store data magnetically. The data can be stored with a device that spins the disk with magnetic coatings and heads has the ability to read and write information in the form of magnetic patterns.