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Feliz [49]
3 years ago
11

Billy used to take care of his laptop. However, one day he lost his laptop. He lost all his data, and there was no way to retrie

ve that data. Which preventive measure did he fail to take?
A.
He didn’t clean his hardware.
B.
He did not update the drivers.
C.
He did not organize his data.
D.
He did not create a backup of his data.
Computers and Technology
1 answer:
Bad White [126]3 years ago
6 0

Answer: D. He did not create a back up of his data.

Explanation: He lost his data, so he did not back it up in case he lost his laptop.

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What is the f(n) runtime of the following pseudocode: sum-0 for A = N/2 downto 1 for B-1 t increment sum by B Explain: exactly w
Romashka [77]

The diagram part of the question is incomplete but the mathematical part has been solved below for you . However when the diagram will be attached it will be answered too.

Answer:

Following is the solution for the Time complexity/ Run Time:

Given that:

A = N/2 to 1

B = 1 to 4N

By summation:

Time Complexity = Lower bound of A * Upper Bound of B

Time Complexity = (N/2) * (4N)

By simplifying:

Time Complexity = N * 2N

Time Complexity = 2N^2

Hence the runtime f(n) for given pseudocode will be 2N^2

i hope it will help you!

3 0
3 years ago
What is a common indicator of a phishing attempt cyber awareness 2022
vivado [14]

There are several types of malicious document. A common indicator of a phishing attempt cyber awareness 2022 is that It includes a threat of dire circumstances.

  • Phishing attacks often makes use of email or malicious websites to infect the machine with malware and viruses so as to collect personal and financial information.

Cybercriminals often uses different means to lure users to click on a link or open an attachment that infects their computers thereby producing vulnerabilities for criminals to use to attack.

Learn more from

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7 0
3 years ago
Write a program to calculate student's average test scores and the grade. You may assume the following input data:
Brums [2.3K]

Answer:

def gradeAverage():

   grades = []

   i = 0

   while i < 5:

       a = int(input('enter score ' + str(i + 1) + ': '))

       grades.append(a)

       i = i+1

   #print(grades)

   average = sum(grades)/len(grades)

   #print(average)

   return average

def lettergrade(a):

   letter = 'A'

   if a < 60:

       letter = 'F'

   elif 59 < a < 63:

       letter = 'D-'

   elif 62 < a < 67:

       letter = 'D'

   elif 66 < a < 70:

       letter = 'D+'

   elif 69 < a < 73:

       letter = 'C-'

   elif 72 < a < 77:

       letter = 'C'

   elif 76 < a < 80:

       letter = 'C+'

   elif 79 < a < 83:

       letter = 'B-'

   elif 82 < a < 87:

       letter = 'B'

   elif 86 < a < 90:

       letter = 'B+'

   elif 89 < a < 94:

       letter = 'A-'

   elif 93 < a < 101:

       letter = 'A'

   return letter

numOfStudents = int(input('How many students: '))

names = []

aver = []

grade =[]

while numOfStudents > 0:

   studentName = input('Enter students name: ')

   names.append(studentName)

   a = gradeAverage()

   aver.append(a)

   grade.append(lettergrade(a))

   numOfStudents = numOfStudents - 1

for name in names:

       for score in aver:

           for letter in grade:

               if names.index(name) == aver.index(score) == grade.index(letter):

                   print('%s : Average =  %d  Letter Grade:  %s \n' %(name, score, letter))

                   break

Explanation:

The programming language used is python.

Two functions were created, the first function gradeAverage() was used to calculate the average values of the scores.

The second function lettergrade(a) was used to get the letter grade i.e(A, A-, C, D, e.t.c.) and it takes its argument from the average.

The main block of code asks for how many students are there and prompts the user to input their names and scores for all the students.

It takes that data calculates the average and the letter grade and prints out the names of the students, their average and their letter grade.

7 0
3 years ago
I can't find the errors! Could anyone help me please?!
enot [183]
The only syntax error I saw was that the re pattern should have been double quoted.

Other non-syntax errors are: the import statement doesn't have a valid module name. It should be "import re" . Since tutorGroup is double quoted in the re.match(), it becomes a string, not the variable from the input() function.

4 0
3 years ago
Cloud storage refers to the storage of data on ______.a. your mobile device.b. your desktop computer.c. an external drive.d. a s
eimsori [14]

Answer:

D.  server on the internet

Explanation:

6 0
3 years ago
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