The computer operators should be well known with batch systems.
Batch systems are hard to debug.
It is sometime costly.
The other jobs will have to wait for an unknown time if any job fails.
Explanation:
Answer:
Disadvantages of Batch Operating System:
The computer operators should be well known with batch systems.Batch systems are hard to debug.It is sometime costly.The other jobs will have to wait for an unknown time if any job fails.Shortest Remaining Time First is the best preemptive scheduling algorithm that can be implemented in an Operating System.
a. True
b. False
Answer:
a
Explanation:
Yes, true.
Shortest Remaining Time First, also popularly referred to by the acronym SRTF, is a type of scheduling algorithm, used in operating systems. Other times it's not called by its name nor its acronym, it is called the preemptive version of SJF scheduling algorithm. The SJF scheduling algorithm is another type of scheduling algorithm.
The Shortest Remaining Time First has been touted by many to be faster than the SJF
The answer to the question which asks if the Shortest Remaining Time First is the best preemptive scheduling algorithm that can be implemented in an Operating System is:
TrueWhat is Shortest Remaining Time First?This refers to the type of scheduling algorithm which is used to schedule tasks that would be executed in the processing unit in an Operating System based on the shortest time taken to execute the task.
With this in mind, we can see that this is the best preemptive scheduling algorithm that can be implemented in an Operating System because it makes task execution faster.
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The reading element punctuation relates to the ability to
pause or stop while reading.
emphasize important words.
read quickly yet accurately.
understand word definitions.
Answer:
A
Explanation:
Punctations are a pause or halt in sentences. the first one is the answer so do not mind the explanation.
semi colons, colons, periods, exclamation points, and question Mark's halt the sentence
most commas act as a pause
Answer: (A) pause or stop while reading.
Explanation:
To create a public key signature, you would use the ______ key.
Answer:
To create a public key signature, you would use the _private_ key.
Explanation:
To create a public key signature, a private key is essential to enable authorization.
A private key uses one key to make data unreadable by intruders and for the data to be accessed the same key would be needed to do so.
The login details and some important credentials to access user data contains both the user's public key data and private key data. Both private key and public key are two keys that work together to accomplish security goals.
The public key uses different keys to make data readable and unreadable.
The public key is important to verify authorization to access encrypted data by making sure the access authorization came from someone who has the private key. In other words, it's a system put in place to cross-check the holder of the private key by providing the public key of the encrypted data that needed to be accessed. Though, it depends on the key used to encrypt the data as data encrypted with a public key would require a private key for the data to be readable.
In this exercise you will debug the code which has been provided in the starter file. The code is intended to take two strings, s1 and s2 followed by a whole number, n, as inputs from the user, then print a string made up of the first n letters of s1 and the last n letters of s2. Your job is to fix the errors in the code so it performs as expected (see the sample run for an example).
Sample run
Enter first string
sausage
Enter second string
races
Enter number of letters from each word
3
sauces
Note: you are not expected to make your code work when n is bigger than the length of either string.
1 import java.util.Scanner;
2
3 public class 02_14_Activity_one {
4 public static void main(String[] args) {
5
6 Scanner scan = Scanner(System.in);
7
8 //Get first string
9 System.out.println("Enter first string");
10 String s1 = nextLine(); 1
11
12 //Get second string
13 System.out.println("Enter second string");
14 String s2 = Scanner.nextLine();
15
16 //Get number of letters to use from each string
17 System.out.println("Enter number of letters from each word");
18 String n = scan.nextLine();
19
20 //Print start of first string and end of second string
21 System.out.println(s1.substring(1,n-1) + s2.substring(s1.length()-n));
22
23
24 }
Answer:
Here is the corrected program:
import java.util.Scanner; //to accept input from user
public class 02_14_Activity_one { //class name
public static void main(String[] args) { //start of main method
Scanner scan = new Scanner(System.in); //creates Scanner class object
System.out.println("Enter first string"); //prompts user to enter first string
String s1 = scan.nextLine(); //reads input string from user
System.out.println("Enter second string"); //prompts user to enter second string
String s2 = scan.nextLine(); //reads second input string from user
System.out.println("Enter number of letters from each word"); //enter n
int n = scan.nextInt(); //reads value of integer n from user
System.out.println(s1.substring(0,n) + s2.substring(s2.length() - n ));
} } //uses substring method to print a string made up of the first n letters of s1 and the last n letters of s2.
Explanation:
The errors were:
1.
Scanner scan = Scanner(System.in);
Here new keyword is missing to create object scan of Scanner class.
Corrected statement:
Scanner scan = new Scanner(System.in);
2.
String s1 = nextLine();
Here object scan is missing to call nextLine() method of class Scanner
Corrected statement:
String s1 = scan.nextLine();
3.
String s2 = Scanner.nextLine();
Here class is used instead of its object scan to access the method nextLine
Corrected statement:
String s2 = scan.nextLine();
4.
String n = scan.nextLine();
Here n is of type String but n is a whole number so it should be of type int. Also the method nextInt will be used to scan and accept an integer value
Corrected statement:
int n = scan.nextInt();
5.
System.out.println(s1.substring(1,n-1) + s2.substring(s1.length()-n));
This statement is also not correct
Corrected statement:
System.out.println(s1.substring(0,n) + s2.substring(s2.length() - n ));
This works as follows:
s1.substring(0,n) uses substring method to return a new string that is a substring of this s1. The substring begins at the 0th index of s1 and extends to the character at index n.
s2.substring(s2.length() - n ) uses substring method to return a new string that is a substring of this s2. The substring then uses length() method to get the length of s2 and subtracts integer n from it and thus returns the last n characters of s2.
The screenshot of program along with its output is attached.
I don‘t know how to solve a crossword puzzle. Please help me!!!
Which of the following documents has a template available in the online templates for your use?
letters
resumés
reports
all of the above
Answer:
The answer is all of the above.
Explanation:
For everyday files that users will use regularly on a user's own Word-compatible computer, the best file format to save as is: o PDF. DOCX ORTE. OTXT.
Answer:
DOCX? I think
Explanation:
The state way of grading drivers is called what?
*
What is a piece of information sent to a function
Answer:
the information sent to a function is the 'input'.
or maybe not hehe
Write a program that takes a three digit number (input) and prints its ones, tens and hundreds digits on separate lines
In python:
number = input("Enter your number ")
i = 0
while i < len(number):
print(number[i])
i += 1
Write a method called min that takes three integers as parameters and returns the smallest of the three values, such that a call of min(3, -2, 7) would return -2, and a call of min(19, 27, 6) would return 6. Use Math.min to write your solution.
Answer:
public class Main
{
public static void main(String[] args) {
System.out.println(min(3, -2, 7));
}
public static int min(int n1, int n2, int n3){
int smallest = Math.min(Math.min(n1, n2), n3);
return smallest;
}
}
Explanation:
*The code is in Java.
Create a method named min that takes three parameters, n1, n2, and n3
Inside the method:
Call the method Math.min() to find the smallest among n1 and n2. Then, pass the result of this method to Math.min() again with n3 to find the min among three of them and return it. Note that Math.min() returns the smallest number among two parameters.
In the main:
Call the method with parameters given in the example and print the result
Methods are named program statements that are executed when called/invoked.
The method in Python, where comments are used to explain each line is as follows:
#This defines the method
def mmin(a,b,c):
#This calculates the smallest of the three values using math.min
minNum = min(a,b,c)
#This prints the smallest value
return minNum
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Is 583 a string or a number?
Answer:
a string
answer
What does the measurement tell you?
Schedule performance index
Answer:
how close the project is to being completed compared to the schedule/ how far ahead or behind schedule the project is, relative to the overall project
Explanation:
(d) Assume charArray is a character array with 20 elements stored in memory and its starting memory address is in $t5. What is the memory address for element charArray[5]?
Answer:
$t5 + 5
Explanation:
Given that ;
A character array defines as :
charArray
Number of elements in charArray = 20
Starting memory address is in $t5
The memory address for element charArray[5]
Memory address for charArray[5] will be :
Starting memory address + 5 :
$t5 + 5
Type the correct answer in the box
in which phishing technique are URLs of the spoofed organization misspelled?
anon
is a phishing technique in which URLs of the spoofed organization are misspelled
Answer: Link manipulation
Explanation:
Answer:
Typo Squatting
Explanation:
CJ is developing a new website blogging about cutting-edge technologies for people with special needs. He wants to make the site accessible and user friendly.
CJ knows that some of the visitors who frequent his website will use screen readers. To allow these users to bypass the navigation, he will use a skip link, He wants to position the skip link on the right but first he must use the ____ property.
a) display
b) right
c) left
d) nav
Answer:
The answer is "Option c".
Explanation:
It is an internal page reference which, whilst also completely new pages, allow navigating around the current page. They are largely used only for bypassing and 'skipping' across redundant web page content by voice command users, that's why the CJ would use a skip link to enable those users to bypass specific navigation, and he also wants to put this link on the right, but first, he needs to use the left property.
PV = 11,000 AC = 6000 CV = 4,000. What is SV? What does this calculation tell you?
Answer:
I don't see an SV in the examples.. I suspect these are the name plate numbers off of a transformer... but.. more context would really help
Explanation:
Describe how to manage the workspace by putting each feature under the action it helps carry out
Answer:
Viewing Documents one at a time:Windows+tab keys,
Windows taskbar
Viewing documents at same time:
Snap,Arrange all
Explanation:
The workspace can be managed by putting control of the surroundings it's far important that you examine all of the factors and items found in your area.
What is the workplace for?Workspaces had been round in Ubuntu properly earlier than the transfer to Unity. They essentially offer you a manner to organization home windows associated with comparable duties together, in addition to get "additional" screenspace.
The subsequent step is to outline a logical and optimizing feature for the factors with a view to continuing to be on your surroundings, defining that each of them may be capable of carrying out an easy and applicable project for his or her paintings.
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Alice just wrote a new app using Python. She tested her code and noticed some of her lines of code are out of order. Which principal of programing should Alice review?
Answer:
sequencing
Explanation:
from flvs
Answer:
Sequencing
Explanation:
The following equations estimate the calories burned when exercising (source): Men: Calories = ( (Age x 0.2017) — (Weight x 0.09036) + (Heart Rate x 0.6309) — 55.0969 ) x Time / 4.184 Women: Calories = ( (Age x 0.074) — (Weight x 0.05741) + (Heart Rate x 0.4472) — 20.4022 ) x Time / 4.184 Write a program with inputs age (years), weight (pounds), heart rate (beats per minute), and time (minutes), respectively. Output calories burned for men and women. Ex: If the input is 49 155 148 60, the output is:
In python:
age = float(input("How old are you? "))
weight = float(input("How much do you weigh? "))
heart_rate = float(input("What's your heart rate? "))
time = float(input("What's the time? "))
print("The calories burned for men is {}, and the calories burned for women is {}.".format(
((age * 0.2017) - (weight * 0.09036) + (heart_rate * 0.6309) - 55.0969) * (time / 4.184),
((age * 0.074) - (weight * 0.05741) + (heart_rate * 0.4472) - 20.4022) * (time / 4.184)))
This is the program.
When you enter 49 155 148 60, the output is:
The calories burned for men is 489.77724665391963, and the calories burned for women is 580.939531548757.
Round to whatever you desire.
The programming language is not stated. So, I will answer this question using Python programming language.
The program requires a sequence control structure, because it does not make use of conditions and iterations.
The program in python is as follows, where comments (in italics) are used to explain each line.
#This gets input for age, in years
age = int(input("Age (years): "))
#This gets input for weight, in pounds
weight = int(input("Weight (pounds): "))
#This gets input for heart rate, in beats per minutes
heart_rate = int(input("Heart Rate (beats per minutes): "))
#This gets input for time, in minutes
time = int(input("Time (Minutes) : "))
#This calculates the calories burnt for men
Men = ((age * 0.2017) - (weight * 0.09036) + (heart_rate * 0.6309) - 55.0969) * time / 4.184
#This calculates the calories burnt for women
Women = ((age * 0.074) - (weight * 0.05741) + (heart_rate * 0.4472) - 20.4022 ) * time / 4.184
#This prints the calories burnt for men
print("Men:", Men)
#This prints the calories burnt for women
print("Women:", Women)
At the end of the program, the program outputs the amount of calories burnt for men and women.
See attachment for sample run
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Custom function definitions:________.
A. Must be written before they are called by another part of your program
B. Must declare a name for the function
C. Must include information regarding any arguments (if any) that will be passed to the function
D. all of the above
Answer:
D. all of the above
Explanation:
A option is correct and function definition must be written before they are called by another part of your program. But in languages such as C++ you can write the prototype of the function before it is called anywhere in the program and later write the complete function implementation. I will give an example in Python:
def addition(a,b): #this is the definition of function addition
c = a + b
return c
print(addition(1,3)) #this is where the function is called
B option is correct and function definition must declare a name for the function. If you see the above given function, its name is declared as addition
C option is correct and function definition must include information regarding any arguments (if any) that will be passed to the function. In the above given example the arguments are a and b. If we define the above function in C++ it becomes: int addition( int a, int b)
This gives information that the two variables a and b that are parameters of the function addition are of type int so they can hold integer values only.
Hence option D is the correct answer. All of the above options are correct.
List three hardware computer components? Describe each component, and what its function is.
Answer:
moniter: a screen and is used to see what the computer is running
webcam: the camera on the computer. can be already built in or added
power supply: an electrical device that supplies power to an electrical load
Explanation:
Answer:
Input device
output device
C.P.U
what is the use of buffer?
Answer:
pH buffer or hydrogen ion buffer) is an aqueous solution consisting of a mixture of a weak acid and its conjugate base, or vice versa. ... Buffer solutions are used as a means of keeping pH at a nearly constant value in a wide variety of chemical applications.
Explanation:
there is your answer i got this one correct
hope it is helpful
Answer:
Limits the pH of a solution
Explanation:
A P E X
Choose the word to make the sentence true. The ____ function is used to display the program's output.
O input
O output
O display
The output function is used to display the program's output.
Explanation:
As far as I know this must be the answer. As tge output devices such as Monitor and Speaker displays the output processed.
The display function is used to display the program's output. The correct option is C.
What is display function?Display Function Usage displays a list of function identifiers. It can also be used to display detailed usage information about a specific function, such as a list of user profiles with the function's specific usage information.
The displayed values include the prefix, measuring unit, and required decimal places.
Push buttons can be used to select functions such as summation, minimum and maximum value output, and tare. A variety of user inputs are available.
A display is a device that displays visual information. The primary goal of any display technology is to make information sharing easier. The display function is used to display the output of the program.
Thus, the correct option is C.
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This assignment requires you to write a well documented Java program to calculate the total and average of three scores, the letter grade, and output the results. Your program must do the following:
Prompt and read the users first and last name
Prompt and read three integer scores
Calculate the total and average
Determine a letter grade based on the following grading scale - 90-100 A; 80-89.99 B; 70-79.99 C; below 70 F
Use the printf method to output the full name, the three scores, the total, average, and the letter grade, properly formatted and on separate lines.
Within the program include a pledge that this program is solely your work and the IDE used to create/test/execute the program. Please submit the source code/.java file to Blackboard. Attached is a quick reference for the printf method.
Answer:
The solution is given in the explanation section
Don't forget to add the pledge before submitting it. Also, remember to state the IDE which you are familiar with, I have used the intellij IDEA
Follow through the comments for a detailed explanation of each step
Explanation:
/*This is a Java program to calculate the total and average of three scores, the letter grade, and output the results*/
// Importing the Scanner class to receive user input
import java.util.Scanner;
class Main {
public static void main(String[] args) {
//Make an object of the scaner class
Scanner in = new Scanner(System.in);
//Prompt and receive user first and last name;
System.out.println("Please enter your first name");
String First_name = in.next();
System.out.println("Please enter your Last name");
String Last_name = in.next();
//Prompt and receive The three integer scores;
System.out.println("Please enter score for course one");
int courseOneScore = in.nextInt();
System.out.println("Please enter score for course two");
int courseTwoScore = in.nextInt();
System.out.println("Please enter score for course three");
int courseThreeScore = in.nextInt();
//Calculating the total scores and average
int totalScores = courseOneScore+courseTwoScore+courseThreeScore;
double averageScore = totalScores/3;
/*Use if..Else statements to Determine a letter grade based on the following grading scale - 90-100 A; 80-89.99 B; 70-79.99 C; below 70 F */
char letterGrade;
if(averageScore>=90){
letterGrade = 'A';
}
else if(averageScore>=80 && averageScore<=89.99){
letterGrade = 'B';
}
else if(averageScore>=70 && averageScore<=79.99){
letterGrade = 'C';
}
else{
letterGrade ='F';
}
//Printing out the required messages
System.out.printf("Name: %s %s\n", First_name, Last_name);
System.out.printf("scores: %d %d %d: \n", courseOneScore, courseTwoScore, courseThreeScore);
System.out.printf("Total and Average Score is: %d %.2f: \n", totalScores, averageScore);
System.out.printf("Letter Grade: %C: \n", letterGrade);
// System.out.printf("Total: %-10.2f: ", dblTotal);
}
}
Write a program that asks for the names of three runners and the time, in minutes, it took each of them to finish a race. The program should display the names of the runners in the order that they finished.
Answer:
Written in Python
names = []
times = []
for i in range(0,3):
nname = input("Name "+str(i+1)+": ")
names.append(nname)
time = input("Time "+str(i+1)+": ")
times.append(time)
if times[2]>=times[1] and times[2]>=times[0]:
print(names[2]+" "+times[2])
if times[1]>=times[0]:
print(names[1]+" "+times[1])
print(names[0]+" "+times[0])
else:
print(names[0]+" "+times[0])
print(names[1]+" "+times[1])
elif times[1]>=times[2] and times[1]>=times[0]:
print(names[1]+" "+times[1])
if times[2]>times[0]:
print(names[2]+" "+times[2])
print(names[0]+" "+times[0])
else:
print(names[0]+" "+times[0])
print(names[2]+" "+times[2])
else:
print(names[0]+" "+times[0])
if times[2]>times[0]:
print(names[2]+" "+times[2])
print(names[1]+" "+times[1])
else:
print(names[1]+" "+times[1])
print(names[2]+" "+times[2])
Explanation:
I've added the full source code as an attachment where I used comments to explain difficult lines
Write a program that computes and display the n! for any n in the range1...100
Answer:
const BigNumber = require('bignumber.js');
var f = new BigNumber("1");
for (let i=1; i <= 100; i++) {
f = f.times(i);
console.log(`${i}! = ${f.toFixed()}`);
}
Explanation:
Above is a solution in javascript. You will need a bignumber library to display the numbers in full precision.
there are no more than 60 people in a certain class to participate in the final .the exam subjects are programming, English, and mathematics .the following functions are realized by two dimensional array programming.calculate the average score of each student
Answer:
If there are many people in the class and if most of these people have never done such an intensive proof-based class, then I'd say this is not so surprising that the class average would be 56%-34%
Explanation:
hopes this help this question threw me off a lot
Which online text source would include a review of a new TV show?
an academic journal
a blog
an e-book
an encyclopedia
Answer:
Blog
Explanation:
Online text sources include blogs, e-books, encyclopaedias, and e-zines. As a result, options A, B, C, and D are correct.
What is a text source?A source is a book or other material that contains the data that has been used, whereas a citation is the actual statement of the starting point. They were researchers who also worked as professors, writers, and other professionals, and they published books and articles.
Online text sources are those that can be accessed from anywhere and are available on the internet. The online text shows that anyone can see or exceed including blogs, e-books, encyclopaedias, and e-zines.
These are available for further studies and research. Also to give information this can be a source. Therefore, options A, B, C, and E is the correct option.
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Write a function that takes a string and return the back half of the string. If the string has an odd number of characters, include the extra character. Your solution should also work if given and empty string. Examples: back_half('abba') should return 'ba' back_half('abcba') should return 'cba'
Answer:
Written in Python
def back_half(inputstring):
outputstring = ""
lent = len(inputstring)
if lent == 0:
outputstring ="Empty String"
elif lent%2 == 0:
begin = lent/2
for i in range(int(begin),lent):
outputstring = outputstring + inputstring[i]
else:
begin = (lent+1)/2
for i in range(int(begin-1),lent):
outputstring = outputstring + inputstring[i]
return outputstring
Explanation:
This line defines the function
def back_half(inputstring):
This line initializes outputstring to an empty string
outputstring = ""
This calculates the length of the input string
lent = len(inputstring)
This checks if the length of inputstring is 0. If yes, the function returns empty string
if lent == 0:
outputstring ="Empty String"
This checks if the length of inputstring is even.
elif lent%2 == 0:
begin = lent/2 This line gets the beginning of the half string
for i in range(int(begin),lent):
outputstring = outputstring + inputstring[i] This generates the half string
else: This checks for odd length
begin = (lent+1)/2 This line gets the beginning of the half string
for i in range(int(begin-1),lent):
outputstring = outputstring + inputstring[i] This generates the half string
return outputstring This returns the outputstring