Calculator Create a program that calculates three options for an appropriate tip to leave after a meal at a restaurant.

Specifications:

a. The program should calculate and display the cost of tipping at 15%, 20%, or 25%.
b. Assume the user will enter valid data.
c. The program should round results to a maximum of two decimal places.

Answer:

vowels = ("a", "e", "i", "o", "u")

word = input("Enter a word: ")

is_all = True

for c in vowels:

   if c not in word:

       is_all = False

if is_all == True:

   print(word + " is a vowel word.")

else:

   print(word + " is not a vowel word.")

Explanation:

Initialize a tuple, vowels, containing every vowel

Ask the user to enter a word

Initially, set the is_all as True. This will be used to check, if every vowel is in word or not.

Create a for loop that iterates through the vowels. Inside the loop, check if each vowel is in the word or not. If one of the vowel is not in the vowels, set the is_all as False.

When the loop is done, check the is_all. If it is True, the word is a vowel word. Otherwise, it is not a vowel word.

Answer:

(a). as the combination of IP address and port number to allow an application within a computer to set up a connection with another application in another computer without ambiguity.

Explanation:

The explanation is in the answer.

Answer:

To determine if the program solves the original problem

Explanation:

Required

Essence of validating a program

From list of given options, only the above option best describes the given illustration.

When a program is validated, it means that the results of the program are tested to meet the requirements of the user;

For a program to be validated, it means it has passed the stage of error checking and correction; whether syntax or run time errors;

However, when modifications are made, the program will need to be re-validated to ensure that it comports with its requirements.

Answer:

the floating-point instructions  should be run 1.5 times faster in order to execute entire program 1.25 times faster

Explanation:

Given that:

a program consists of integer and floating-point instructions. 60% of the total execution time is spent on floating point instructions and the remaining 40% is on integer instructions.

Let the integer be the total execution time = V

The  floating-point instructions = 60%

The integer instruction = 40%

The time spent on the floating-point instruction = 60/100 × V

= 0.6 V

The time spent on t he integer instruction = 40/100 × V

= 0.4 V

However; How much faster should we run the floating-point instructions to execute entire program 1.25 times faster

If we are to execute the entire program 1,25 times faster;

The new execution time = V/1.25

Assuming the new time spent on floating-point instruction = W

∵

W + 0.4 V = V/1.25

W = V/1.25 - 0.4 V

W = (V - 0.5V)/1.25

W = 0.4V

the new time spent on floating-point instruction = W = 0.4 V

The speed required to make the floating -point instruction to run faster = 0.6V/.4 V

= 1.5

Hence,  the floating-point instructions  should be run 1.5 times faster in order to execute entire program 1.25 times faster

Answer:

The statement is False.

Explanation:

In his article published on the 31st Aug 2010, Patrick suggests that a 100% penetration rate for any market is now possible due to the growth of the use of mobile phones.

The strategy of accessing the market using mobile ads, according to Patrick, is called Mobile Marketing.

In his article, Patrick provides statistics which help buttress his position that a good number of mobile phone users are ready to respond positively to mobile ads.

While it is implied that this concept has increased the chances of mobile games as a product being successful, nowhere in the article did Patric mention "games".

Cheers!

Answer:

Here are the stub functions get_user_num() and compute_avg()

def get_user_num():

   print('FIXME: Finish get_user_num()')

   return -1  

def compute_avg(user_num1, user_num2):

   print('FIXME: Finish compute_avg()')

   return -1

Explanation:

A stub is a small function or a piece of code which is sometimes used in program to test a function before its fully implemented. It can also be used for a longer program that is to be loaded later. It is also used for a long function or program that is remotely located. It is used to test or simulate the functionality of the program.  

The first stub for the function get_user_num() displays FIXME: Finish get_user_num() and then it returns -1.

The seconds stub for the function compute_avg() displays the FIXME: Finish compute_avg() and then it returns -1.

Here with each print statement, there is function name after this FIXME: Finish line. The first function name is get_user_num and the second is compute_avg().

Next the function get_user_num() is called twice and function compute_avg() followed by a print statement: print('Avg:', avg_result) which prints the result. So the program as a whole is given below:

def get_user_num():

   print('FIXME: Finish get_user_num()')

   return -1  

def compute_avg(user_num1, user_num2):

   print('FIXME: Finish compute_avg()')

   return -1  

user_num1 = 0  # the variables are initialized to 0

user_num2 = 0

avg_result = 0  

user_num1 = get_user_num()  #calls get_user_num method

user_num2 = get_user_num()

avg_result = compute_avg(user_num1, user_num2)  

print('Avg:', avg_result)

The method get_user_num() is called twice so the line FIXME: Finish get_user_num() is printed twice on the output screen. The method compute_avg() is called once in this statement avg_result = compute_avg(user_num1, user_num2)   so the line FIXME: Finish compute_avg() is printed once on the output screen. Next the statement print('Avg:', avg_result) displays Avg: -1. You can see in the above program that avg_result = compute_avg(user_num1, user_num2)   and compute_avg function returns -1 so Avg= -1. The program along with the produced outcome is attached.

Answer:

Sound designer.

Explanation:

A boom operator is responsible for positioning of the microphone.

A sound board operator is responsible for playing pre-recorded sound effects.

A production sound mixer records all sounds on the set.

A sound designer creates and edits new sounds.

In conclusion, it must be a sound designer as this best fits the role.

Answer:

c. a certificate.

Explanation:

Public key infrastructure authentication is intended to make transactions occurring through the internet as secure as possible. Public keys are usually assigned to entities like business firms or individuals, and digital certificates are given to them as proof that they have been authenticated.

A certificate authority has the role of signing, storing, and issuing digital certificates. A software or humans could be charged with the responsibility of actually ensuring a key to user binding if all conditions are satisfied.

Answer:

I am writing a Python program:

def string_type(string):

   if string=="":  //if the string is empty

       return "empty"

   elif string.count(".")>1:  #if the period sign occurs more than once in string

       if string.count("\n"):  #checks if the new line occurs in the string

           return "page"  #if both the above cases are true then its a page

       return "paragraph"  # if the period sign condition is true then its a para

   elif string.count(" ")>=1:  #if no of spaces in string occur more than once

       return "sentence"  #returns sentence

   elif len(string)==1:  # if length of the string is 1 this

       return "character"  #returns character

   else:  #if none of the above conditions is true then its a word

       return "word" #returns word

Explanation:

def string_type(string):  this is the definition of method string_type which takes a string as argument and determines whether the type of string is a word, paragraph, page, sentence or empty.

if string=="" this if condition checks if the string is empty. If this condition is true then the method returns "empty"

elif string.count(".")>1  This condition checks if the string type is a paragragh

string.count(".")>1   and if string.count("\n") both statements check if the string type is a page.

Here the count() method is used which is used to return the number of times a specified string or character appears in the given string.

Suppose the string is "Paragraphs need to have multiple sentences. It's true.\n However, two is enough. Yes, two sentences can make a paragraph."

The if condition first checks if count(".")>1 which means it counts the occurrence of period i.e. "." in the string. If the period occurs more than once this means it could be a page. But it could also be a paragraph so in order to determine the correct string type another if statement if string.count("\n") inside elif statement determines if the string is a page or not. This statement checks the number of times a new line appears in the string. So this distinguishes the string type paragraph from string type page.

elif string.count(" ")>=1: statement determines if the string is a sentence. For example if the string is "i love to eat apples." count() method counts the number of times " " space appears in the string. If the space appears more than once this means this cannot be a single word or a character and it has more than one words. So this means its a sentence.

  elif len(string)==1:  this else if condition checks the length of the string. If the length of the string is 1 this means the string only has a single character. Suppose string is "!" Then the len (string) = 1 as it only contains exclamation mark character. So the method returns "character" . If none of the above if and elif conditions evaluates to true then this means the string type is a word.

Answer:

def string_type(string):

  if string=="":  //if the string is empty

      return "empty"

  elif string.count(".")>1:  #if the period sign occurs more than once in string

      if string.count("\n"):  #checks if the new line occurs in the string

          return "page"  #if both the above cases are true then its a page

      return "paragraph"  # if the period sign condition is true then its a para

  elif string.count(" ")>=1:  #if no of spaces in string occur more than once

      return "sentence"  #returns sentence

Explanation:

It should be noted that the operating system problem that might cause the desktop background to change is D incompatibility.

The operating system problem serves as those error that can affect the operation of the operating system in computer.

This System errors are caused by malfunctioning hardware components as well as corrupted operating system modules and one of this is compatibility.

Learn more about operating system problem at;

https://brainly.com/question/17506968

Answer:

The mean  = 16

The standard deviation = 7.19

Explanation:

N1 = 200  X1 = 25   σ1 = 3

N2= 250  X2 = 10   σ2 = 4

N3 = 300  X3= 15   σ3 = 5

The mean of a combined distribution is given by:

[tex]X = \frac{X_1N_1+X_2N_2+X_3N_3}{N_1+N_2+N_3}\\X = \frac{25*200+10*250+15*300}{200+250+300}\\X=16[/tex]

The differences from the mean for each component are:

[tex]D_1 = 25-16=9\\D_2=10-16=-6\\D_3=15-16=-1[/tex]

The standard deviation of a combined distribution is given by:

[tex]\sigma=\sqrt{\frac{N_1(\sigma_1^2+D_1^2)+N_2(\sigma_2^2+D_2^2)+N_3(\sigma_3^2+D_3^2)}{N_1+N_2+N_3}}\\\sigma=\sqrt{\frac{200(3^2+9^2)+250(4^2+(-6)^2)+300(5^2+(-1)^2)}{200+250+300}}\\\sigma=\sqrt{\frac{18000+13000+7800}{750} }\\\sigma=7.19[/tex]

The mean  = 16

The standard deviation = 7.19

Explanation:

Without it, we may have endured convoluted keyboard commands for years, greatly hindering the process of bringing the PC into homes everywhere. The mouse revolutionized computer interfaces, simplified an otherwise scary machine, and helped connect the world.

Answer:

Following are the code to this question:

val={} #defining dictionary variable val

def unique_word(i):#defining a method unique_word    

   if i in val: #defining if condition to add value in dictonary          

       val[i] += 1#add values  

   else: #defining else block to update values        

       val.update({i: 1})#updating dictionary

s =input('Enter string value: ') #defining s variable for input string value

w=s.split()#split string value and sorte in w variable

w.sort() #sorting the value  

for i in w: #defining loop for pass value in method unique_word

   unique_word(i)#assign value and calling the unique_word method

for j in val:# defining for loop to print dictionary value  

   if val[j] == 1: #defining if block to check value is unique  

       print(j) #print value

Output:

Enter string value: my name is dataman

dataman

name

is

my  

Explanation:

Answer:

Option(d) is the correct answer to the given question .

Explanation:

There are various type of algorithm is used for the purpose of the key scheduling such as AES .in the AES algorithm we used same key for encryption and decryption of text .The  main objective of the AES algorithm it is used by Various round of the similar plain text encryption to reinforce the cipher text.

Answer:

The statement in python is as follows:

to_the_power_of(cube_side,3)

Explanation:

As stated as the requirement of the code segment, the statement takes as parameters a variable cube_side and a constant 3.

It then returns the volume of the cube; i.e. cube raise to power 3

See full program below

def to_the_power_of(val,powe):

    result = val**powe

    print(result)

cube_side = float(input("Cube side: "))

to_the_power_of(cube_side,3)

Answer:

B. False

Explanation:

Answer:

A honeypot is a computer network set up to act as a decoy to track, deflect, or research trying to obtain unwanted access to the information system.

Explanation:

A honeypot is a device or device network designed to imitate possible cyber-attack targets. It can be utilized to detect or deflect assaults from a legitimate military target. It may also be used to collect knowledge on how cybercrime works.

Advantage:-

Disadvantage:-  

That honeypot doesn't replace any safety mechanisms; they just operate with your overall security infrastructure and improve it.

Answer:

D. Both A and B

Explanation:

Because it controls the input and output of data, check the signals have been delivered successfully, and make sure that data goes to the correct place at the correct time.

Answer:

Any element that has a starting tag and doesn't have a closing tag is called a empty element.

:)

Answer:

public class ArithmeticMethods

{

public static void main(String[] args) {

    int number1 = 7;

    int number2 = 28;

 displayNumberPlus10(number1);

 displayNumberPlus10(number2);

 displayNumberPlus100(number1);

 displayNumberPlus100(number2);

 displayNumberPlus1000(number1);

 displayNumberPlus1000(number2);

}

public static void displayNumberPlus10(int number){

    System.out.println(number + 10);

}

public static void displayNumberPlus100(int number){

    System.out.println(number + 100);

}

public static void displayNumberPlus1000(int number){

    System.out.println(number + 1000);

}

}

Explanation:

Inside the main:

Initialize two integers, number1 and number2

Call the methods with each integer

Create a method called displayNumberPlus10() that displays the sum of the given number and 10

Create a method called displayNumberPlus100() that displays the sum of the given number and 100

Create a method called displayNumberPlus1000() that displays the sum of the given number and 1000

Answer:

This program is written using Java programming language.

No comments were used; however, see explanation section for line by line explanation

import java.util.*;

public class Nums {

   public static void main(String args[]) {

     Scanner input = new Scanner(System.in);

     System.out.println("1.");

     int userNum;

     System.out.print("Enter Integer: ");

     userNum = input.nextInt();

     System.out.println("You entered: "+userNum);

     System.out.println("2.");

     System.out.print("Enter Integer: ");

     userNum = input.nextInt();

     System.out.println("You entered: "+userNum);

     System.out.println(userNum+" squared is "+(userNum * userNum));

     System.out.println("And "+userNum+" cubed is "+(userNum * userNum * userNum)+"!!");

     System.out.println("3.");

     System.out.print("Enter Another integer: ");

     int userNum2 = input.nextInt();

     System.out.println(userNum+" + "+userNum2+" is "+(userNum + userNum2));

     System.out.println(userNum+" * "+userNum2+" is "+(userNum * userNum2));

   }

}

Explanation:

This enables the program accept inputs

     Scanner input = new Scanner(System.in);

This signifies the beginning of number 1

     System.out.println("1.");

Variable userNum is declared as type integer

     int userNum;

The line prompts the user for input

     System.out.print("Enter Integer: ");

The line accepts the input

     userNum = input.nextInt();

This line displays user input

     System.out.println("You entered: "+userNum);

This signifies the beginning of number 2

     System.out.println("2.");

This line prompts the user for input

     System.out.print("Enter Integer: ");

This line accepts input

     userNum = input.nextInt();

This line prints user input (as required in number 2)

     System.out.println("You entered: "+userNum);

This line calculates and prints the square of user input

     System.out.println(userNum+" squared is "+(userNum * userNum));

This line calculates and prints the cube of user input

     System.out.println("And "+userNum+" cubed is "+(userNum * userNum * userNum)+"!!");

This signifies the beginning of number 3

     System.out.println("3.");

This line prompts the user for another integer value

     System.out.print("Enter Another integer: ");

This line accepts the input from the user

     int userNum2 = input.nextInt();

This line adds the two inputs by the user and displays the result

     System.out.println(userNum+" + "+userNum2+" is "+(userNum + userNum2));

This line multiplies the two inputs by the user and displays the result

     System.out.println(userNum+" * "+userNum2+" is "+(userNum * userNum2));

Answer:

1. {(22, 22) (22, 23), (22, 24), (23, 22), (23, 23), (23, 24)} : Not reflective, Not symmetric, Not anti-symmetric, Transitive.

2.  {(21,21),(21,22),(22,21),(22,22),(23,23),(24,24)}: Reflective, symmetric.

Explanation:

Solution

Reflective: Of every element matched to its own element

Symmetric: For every (a,b) there should be (b,a)

Anti-symmetric: For every (a,b) there should not be (b,a)

Transitive: For every (a,b) ∈R and (b,c)∈ R -then (a,c) ER for all a, b, c ∈ A

Now,

1.{(22, 22) (22, 23), (22, 24), (23, 22), (23, 23), (23, 24)}

Not Reflective: This is because we don't have (21,21) (23,23) and (24,24)

Not symmetric: Because we don't have (23,24) and (24,23)

Not anti symmetric: We have both (22,23) and (23,22)

Transitive: It is either 22 or 23 be (a,b) and 24 (b,a)

2. {(21,21),(21,22),(22,21),(22,22),(23,23),(24,24)}

Reflective: For all we have (a,a)

Symmetric: For every (a,b) we have (b,a)

Not Anti-symmetric

Transitive

Answer:

The answer is "Option B".

Explanation:

The Baseline measurement is an essential characteristic of effective coal company monitoring programs to assess the degree of mining effects and keep on improving effect monitoring the system will continue to be modified via periodical analyses, and the wrong choices can be defined as follows:

Explanation:

All five things i can come up with her

1. Doors (we either open or close them)

2. Tap (we either open or close the valve)

3.  Electric stove/cooker

4. The lid of containers

5. Shoes/ foot wears(we put them ON or OFF)

Answer:

Explanation:

On a system with paging, a process cannot access memory that it does not own because the page is not in its page table also the operating system controls the contents of the table,therefore it limits a process of accessing to only the physical pages allocated to the process.

The operating system could allow access to other memory by allowing entries for non-process memory to be added to the process page table.that way two processes that needs to exchange  data can efficiently do that . i.e creating a very efficient inter-process communication

Answer:

a. Remove the affected servers from the network.

Explanation:

An organization's incident response process (IRP) can be defined as all of the process involved in the cleanup and recovery of data when they fall victim to an attack or cybersecurity breach. The incident response process comprises of six (6) important stages and these are;

1. Preparation.

2. Detection and analysis (identification).

3. Containment.

4. Eradication.

5. Recovery.

6. Review of incident activities.

When an organization's IRP prioritizes containment over eradication and an incident is discovered, where an attacker outside the organization installed a crypto-currency mining software on the organization's web servers. Given the organization's stated priorities, the cybersecurity engineer should remove the affected servers from the network.

A containment process is focused on taking steps to eliminate or contain the attack. It basically involves acting swiftly in response to the attack, so as to prevent it from spreading across board or in order to mitigate the damage already caused.

In this context, the cybersecurity engineer should remove the affected servers from the network in accordance with the organization's IRP priority (containment).

Furthermore, he could take a step further to contain the attack by installing a firewall and updating their policies in the Intrusion Prevention System (IPS) of the organization.

Answer:

a. True

Explanation:

The statement that a pen testing method or penetration test in which a tester who has a means of entry to an application behind its firewall imitates an attack that could be caused by a malicious insider.

A penetration test, which is also refer to as a pen test, pentest or ethical hacking, is an approved simulated cyberattack done on a computer system, performed in order to evaluate the security of the system. The test is carried out to identify both weaknesses or vulnerabilities including the potential for unauthorized parties to penetrate to the system's features and data.

The main purpose of performing this test is to identify any vulnerability in a system's defenses which attackers may take advantage of.

Answer:

The fail bit of the stream object will be set.

Explanation:

The Input Stream is been used to effectively and efficiently read data from a source .

Therefore in a situation in which an individual or a person attempt an operation that uses the input stream and the operation fails but the stream is OK this means that the fail bit of the stream object will be set . FAILBIT is generally set in a situation where the error that occured involves the loss of integrity of the stream in which it is more likely to persist even if various operation is been carried out or attempted on the stream which is why FAIL BIT can always be checked independently by calling the member function bad.

Lastly FAILBIT is as well set because of a read or write operation that fails.

Question:

"The correct syntax for passing an array as an argument to a method when a method is called and an array is passed to it is: "

A) a[0]..a[a.length]

B) a()

C) a

D) a[]  

Answer:

The correct answer is A.

An example is given in the attachment.

Cheers!