Given a variable s that contains a non-empty string, write some statements that use a while loop to assign the number of lower-case vowels ("a","e","i","o","u") in the string to a variable vowel_count.

Answer:

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

:)

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:

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:

B

Explanation:

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:

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:

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:

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:

B. False

Explanation:

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:

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.

Answer:

[1] = 10

[2] = The same natural joins with their super entity set

[3] = Is in 3NF if R is in BCNF

[4] = Neither "1" or "2"

[5] = When changes in R.A are made

Explanation:

[1] The number of super keys of a relation R(A, B, C, D) with keys {A} and {B, C} is 10.  The super keys of the given relations are {A}; {A, B}; {A,C}; {A,D}; {A,B,C}; {A,B,D}; {A,C,D}; {A,B,C,D}; {B,C}; {B,C,D}.

[2] key is used to uniquely identify entity from entity set. So key for every entity is unique. Subentities can have different attributes. Also functional dependencies can be different but natural join with their super subsets will be same.

[3] For a relation R to be in BCNF it must be in 3NF but If a relation R is in 3NF it is not necessary that it will be in BCNF.

[4] The natural join of relations R and S is expressed by R ✕ S.

[5] If tuple constraint references an attribute R.A to S.B then every time a change is done in R.A the tuple constraint is checked.

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:

1. Student.

2. Integral.

3. Agreements.

4. Graduate program.

5. DSO.

Explanation:

An F-1 student may be authorized by the DSO to participate in a curricular practical training program that is an integral part of an established curriculum. Curricular practical training is defined to be alternative work/study, internship, cooperative education, or any other type of required internship or practicum that is offered by sponsoring employers through cooperative agreement with the school. Students who have received one year or more of full time curricular practical training are ineligible for post-completion academic training. Exceptions to the one academic year requirement are provided for students enrolled in graduate program studies that require immediate participation in curricular practical training. A request for authorization for curricular practical training must be made to the DSO. A student may begin curricular practical training only after receiving his or her Form I-20 with the DSO endorsement.

Please note, DSO is an acronym for Designated School Official and they are employed to officially represent colleges or universities in the United States of America. They are saddled with the responsibility of dealing with F-1 matters (a visa category for foreign students seeking admission into schools such as universities or colleges in the United States of America).

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:

A. Mail Merge

Explanation:

I had this question last year

Answer:

I am writing a Python program:

print("Tip Calculator \n")

bill = float(input("Cost of meal: "))

tip15pc = bill * 0.15

tip20pc = bill * 0.20

tip25pc = bill * 0.25

print("\n15%")

print("Tip amount: %.2f"% (tip15pc))

print("Total amount: %.2f \n" % (bill + tip15pc))

print("20%")

print("Tip amount: %.2f"% (tip20pc))

print("Total amount: %.2f \n" % (bill + tip20pc))

print("25%")

print("Tip amount: %.2f"% (tip25pc))

print("Total amount: %.2f" % (bill + tip25pc))

Explanation:

The program first prints the message: Tip Calculator

bill = float(input("Cost of meal: ")) This statement prompts the user to enter the amount of the bill of meal. The input value is taken as decimal/floating point number from user.

tip15pc = bill * 0.15  This statement calculates the cost of tipping at 15%

tip20pc = bill * 0.20 This statement calculates the cost of tipping at 20%

tip25pc = bill * 0.25 This statement calculates the cost of tipping at 25%

print("\n15%")  This statement prints the message 15%

print("Tip amount: %.2f"% (tip15pc))  this statement displays the amount of tip at 15% and the value is displayed up to 2 decimal places as specified by %.2f

print("Total amount: %.2f \n" % (bill + tip15pc))  This statement prints the total amount by adding the cost of mean with the 15% tip amount.

The program further computes the the amount of tip at 20% and 25%. The resultant values are displayed up to 2 decimal places as specified by %.2f Then the program prints the total amount by adding the cost of mean with the 20%  and 25% tip amounts just as computed for the 15% tip.

The screenshot of the program as well as its output is attached.

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:

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

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

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:

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 program written in python is as follows:

def begins_with_line(userinut):

     while userinut[0] == '-' or userinut[0] == '_':

           print(bool(True))

           break;

     else:

           print(bool(not True))

userinput = input("Enter a string: ")

begins_with_line(userinput)

Explanation:

The program makes use of no comments; However, the line by line explanation is as follows

This line defines the function begins_with_line with parameter userinut

def begins_with_line(userinut):

The following italicized lines checks if the first character of user input is dash (-) or underscore ( _)

     while userinut[0] == '-' or userinut[0] == '_':

           print(bool(True))  ->The function returns True

           break;

However, the following italicized lines is executed if the first character of user input is neither dash (-) nor underscore ( _)

     else:

           print(bool(not True))  -> This returns false

The main starts here

The first line prompts user for input

userinput = input("Enter a string: ")

The next line calls the defined function

begins_with_line(userinput)

NB: The program does not make use of if statement

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:

Following are the program in Java language

import java.util.*; // import package

public class Main  // main function

{

public static void main(String[] args)  // main class

{

    String l_name,f_name; // variable declaration

    Scanner sc6=new Scanner(System.in); // scanner class

   f_name= sc6.next(); // Read input

 l_name=sc6.next(); // Read input

 System.out.print(l_name); // display last name

  System.out.print(","); // display comma

   System.out.println(f_name); // display first name

}

}

Output:

Maya Jones

Jones, Maya

Explanation:

Following are the description of program

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:

Explanation:

A) No two queens on the same square

Placing eight queens on an 8 * 8 chessboard has a total of 92 Separate   solutions but unique 12 solutions

The total no of possible solutions using the computational method is

= 64! / (56! * 8! ) ~ 4:4 * 109

but since there are 12 unique solution out of the 92 therefore

B) No two queens are in the same row

= 8^8 = 16,777,216

C) No two queens are in the same row or in the same column

= 8! = 40320 ways

It will approximately take less than a second for a computer with the capability of checking 10 billion positions per second to find all the solutions

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