Administrators should use the command in /etc/systctl.conf to defend the system against SYN flood assaults using the sysctl command.
Why is Linux used? What does it do?Linux is an open-source operating system (OS). An os, which is a piece of software, is directly in charge of managing the hardware and resources of a system, including the CPU, memory, and storage. By occupying the space between applications and hardware, the OS creates connections between all of your programs as well as the operational physical resources.
What distinguishes Linux from Windows?Linux is an open-source alternative to Windows OS, which is a for-profit operating system. Linux allows users to alter the code as necessary, in contrast to Windows, which prohibits users from accessing the source code. The Linux kernel's source code is available to users, who can alter it as necessary to fit their needs.
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Select the items that can be measured.
capacity
smoothness
nationality
thickness
distance
scent
income
Answer:
distance
capacity
smoothness
thickness
what are variables in Q Basic programs
Answer:
1. Numeric variable:
A variable which can store numeric value is called numeric variable.
e.g.
A=12
pi=3.14
c=79.89
2. String variable:
A variable which can store string variable is called String variable. String is a array of character enclosed within the double inverted comma.
e.g.
N$="ram"
Place$="Kirtipur Kathmandu"
note that a string variable ends with $
Explanation:
A variable is a quantity which can store value in computer memory. A variable is also a quantity whose value changes during the execution of a program. Like in mathematics a variable holds certain value Just in QBASIC; it is a placeholder for storing value in computer memory
Write a Java Program
Specific Instructions
Create a class for the following object.
Deck - contains 52 cards initially. Each card is represented by an unchangeable suit and value.
Suits - ♣ (Club), ♠ (Spade), ♥ (Heart), ♦ (Diamond)
Values - 1(A),2,3,4,5,6,7,8,9,10,11(J),12(Q),13(K)
Actions
draw - retrieves the top most card on the deck. When called with number of desired cards, it will try to draw the N cards, if not enough, draw all cards.
shuffle - randomizes the location of all cards, excluding the drawn cards
restore - returns the last N cards drawn on the bottom of the deck, if no number is provided, return all drawn cards.
Make sure that the class is encapsulated.
In the Deck Builder, initialize the 52 cards (along with the 4 jokers, which should be called “wild” and the suit is “wild”).
Public class Deckprivate final List<Carta> Deck;
public Baralho() {
listaCartas = new ArrayList<>();
String[] naipes = {"club", "spade", "heart", "diamond"};
int pos = 0;
Carta c;
with this code we will be able to create the Deck, initialize the 52 cards together with the 4 jokers.
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The program should prompt the user to enter two integers. The program should store these
values into variables a and b and compare the two integers entered then say which number is
greater than the other. E.g. If a user enters 20 and 40, the program should say that 40 is
greater than 20. If the values entered are equal the program should display that the first
number is equal to the second number or else display that invalid data has been entered. Use
if else statements to implement your solution.
Explanation:
Begin
Prompt : please enter & first number:
Please enter & second number:
a number;
b number;
a := first number
b := second number
If (a>b) then
Display (a || 'is grater than' || b) ;
else if (b>a) then
Display (b || 'is grater than' || a) ;
else if (a==b) then
Display (a || 'is equal to' || b) ;
else
Display ('Invalid data has been entered') ;
end if;
End;
Hope it helps!
Hope it helps! Please mark it as brainliest!
IN A RUSH
3.2 code practice: Question 3
I wrote my code in python 3.8.
There are a few errors in the code provided in the Code Editor. Your task is to debug the code so that it outputs the verses correctly.
animal = input("Enter an animal: ")
sound = input ("Enter a sound: ")
e = "E"
print ("Old Macdonald had a farm, " + e)
print ("And on his farm he had a" + animal + "," + e)
print ("With a " + animal + "-" + animal + " here and a" + sound + "-" + sound + " there")
print ("Here a "+ sound+ " there a " +sound)
print ("Everywhere a" + sound + "-" + animal )
print ("Old Macdonald had a farm," + e)
animal = input("Enter an animal: ")
sound = input("Enter a sound: ")
e = "E"
print("Old Macdonald had a farm, " + e)
print("And on his farm he had a " + animal + ", " + e)
print("With a " + animal + "-" + animal + " here and a " + sound + "-" + sound + " there")
print("Here a " + sound + " there a " + sound)
print("Everywhere a " + sound + "-" + animal)
print("Old Macdonald had a farm, " + e)
This works for me. Best of luck.
Answer:
animal = input("Enter an animal: ")
sound = input ("Enter a sound: ")
e = "E-I-E-I-O"
print ("Old Macdonald had a farm, " + e)
print ("And on his farm he had a " + animal + ", " + e)
print ("With a " + sound + "-" + sound + " here and a " + sound + "-" + sound + " there")
print ("Here a "+ sound+ " there a " +sound)
print ("Everywhere a " + sound + "-" + sound )
print ("Old Macdonald had a farm, " + e)
Explanation:
In Python what are the values passed into functions as input called?
edhesive in JAVA Write a method that takes a String parameter. If the String has a double letter (i.e. contains the same letter twice in a row) then it should return true. Otherwise, it should return false.
This method must be named hasRepeat() and have a String parameter. This method must return a boolean.
I've included my code in the picture below. Best of luck.
The method is an illustration of loops and conditional statements.
Loops are used for repetitive operations, while the execution of a conditional statement is based on its truth value.
The hasRepeat() method in Java, where comments are used to explain each line is as follows:
//This defines the hasRepeat() method
public static boolean hasRepeat(String str){
//This initializes the previous character
char prevC = ' ';
//This iterates through the characters of the string str
for(int i = 0; i<str.length();i++){
//This gets the current character
char currC = str.charAt(i);
//If the current character and the previous character are the same
if(currC == prevC){
//Return true
return true;
}
//Assign the current character to the previous character
prevC = currC;
}
//Return false, it the string contains no repetitive character
return false;
}
At the end of the method, the program returns true or false.
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You have been tasked with pulling up an article from American Law Reports that will help you with researching modification of child support due to remarriage. On the main search page, what terms can you enter to get a suggestion for that database
Based on the information given, it should be noted that the term to get a suggestion for a database is child support.
What is a database?A database simply means the information that is set up for an easy access. It should be noted that computer database stores data records.
In this case, on the main search page, the term that one enter to get a suggestion for that database is child support.
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In programming languages, ____ is used as a mnemonic representation for the program instruction’s memory address.
Answer:
Assembly language
Explanation:
Assembly language writes instructions in human letters. Every machine language instruction has a corresponding assembly language instruction that means exactly the same thing. Assembly language uses a symbolic form of a program which are capable of:
- readable by human beings (+/-)
- constants, addresses, and names of symbolic instructions
- arithmetic during assembly - calculations of addresses, constants
- synthetic instructions (not supported by our assembler)
- expansion of macroinstructions (not supported by our
assembler)
- assembly instructions (pseudo-instructions)
• memory allocation
• memory initialization
• conditional assembly (not supported by our assembler)
Do you think the cost of post secondary education is worth the investment? Why or why not?
How to code for a database?
Answer: How to code for a database? A database is an organized collection of data, generally stored and accessed electronically from a computer system. Where databases are more complex they are often developed using formal design and modeling techniques.
WWW. Wikipedia.com
Explanation: When creating a database first you need to make a software program then you need to start planing on what to do ...
{ A database management program (DBMS) is a software package design designed to manipulate, define, retrieve, and manage data in database.
A DBMS generally manipulates the data itself, the the data format, field names, record structure and file structure.}
HoPe ThIs HeLpS YoU!!
What is the output? answer = "Hi mom print(answer.lower()) I
Answer: hi mom
Explanation: got it right on edgen
what is a web client
Answer:
A Web client typically refers to the Web browser in the user's machine or mobile device. It may also refer to extensions and helper applications that enhance the browser to support special services from the site.
hope this helps
have a good day :)
Explanation:
what are all the fallacies and their meanings
Answer:
i dont know you tell me
Explanation:
what is an advantage of using email as a form of communication?
A. it’s faster than the telephone.
B. it’s copyrighted.
C. it’s confidential
D. it documents what has been said.
This program outputs a downwards facing arrow composed of a rectangle and a right triangle. The arrow dimensions are defined by user specified arrow base height, arrow base width, and arrow head width. #include int main(void) {int arrowBaseHeight = 0;int arrowBaseWidth = 0;int arrowHeadWidth = 0;printf("Enter arrow base height:\n");scanf("%d", &arrowBaseHeight);printf("Enter arrow base width:\n");scanf("%d", &arrowBaseWidth);printf("Enter arrow head width:\n");scanf("%d", &arrowHeadWidth);printf("\n");// Draw arrow base (height = 3, width = 2)printf( "**\n");printf( "**\n");printf( "**\n");// Draw arrow head (width = 4)printf( "****\n");printf( "***\n");printf( "**\n");printf( "*\n");return 0;}a. Modify the given program to use a loop to output an arrow base of height arrow_base_height. b. Modify the given program to use a loop to output an arrow base of width arrow_base_width.c. Modify the given program to use a loop to output an arrow head of width arrow_head_width.
Answer:
Here is the C program:
#include <stdio.h> //to use input output functions
int main(void) { //start of main function
int arrowBaseHeight = 0; //stores value for arrow base height
int arrowBaseWidth = 0; //stores value for arrow base width
int arrowHeadWidth = 0 ; //stores value for arrow head width
int i, j; //to traverse through the rows and columns
printf("Enter arrow base height:\n"); //prompts user to enter arrow base height value
scanf("%d", &arrowBaseHeight); //reads input value of arrow base height
printf("Enter arrow base width:\n"); //prompts user to enter arrow base width value
scanf("%d", &arrowBaseWidth); //reads input value of arrow base width
while (arrowHeadWidth <= arrowBaseWidth) { //iterates as long as the value of arrowHeadWidth is less than or equals to the value of arrowBaseWidth
printf("Enter arrow head width:\n"); //prompts user to enter arrow head width value
scanf("%d", &arrowHeadWidth); //reads input value of arrow head width
printf("\n"); }
for (i = 0; i < arrowBaseHeight; i++) { //iterates through rows
for (j = 0; j < arrowBaseWidth; j++) { //iterates through columns
printf("*"); } //prints asterisks
printf("\n"); } //prints a new line
for (i = arrowHeadWidth; i > 0; i--) { //loop for input length
for (j = i; j > 0; j--) { //iterates for triangle ( to make arrow head)
printf("*"); } //prints asterisks
printf("\n"); } } //prints new line
Explanation:
The program asks to enter the height of the arrow base, width of the arrow base and the width of arrow head. When asking to enter the width of the arrow head, a condition is checked that the arrow head width arrowHeadWidth should be less than or equal to width of arrow base arrowBaseWidth. The while loop keeps iterating until the user enters the arrow head width larger than the value of arrow base width.
The loop is used to output an arrow base of height arrowBaseHeight.
The nested loop is being used which as a whole outputs an arrow base of width arrowBaseWidth. The inner loop draws the stars and forms the base width of the arrow, and the outer loop iterates a number of times equal to the height of the arrow.
The last nested loop is used to output an arrow head of width arrowHeadWidth. The inner loop forms the arrow head and prints the stars needed to form an arrow head.
The screenshot of output is attached.
2. Write these functions definitions:
d) Function div2Numbers () that divides 2 integers.
Compile and test your function with the following main function:
int main()
1
char op;
cout<<"Enter + to add 2 integers\n";
cout<<"Enter - to subtract 2 integers\n";
cout<<"Enter x to multiply 2 integers\n";
cout<<"Enter / to divide 2 integers\n";
cout<<"Enter the operator required: ";
cin>>op;
switch (op)
{
case '+': add2 Numbers (); break;
case '-': sub2 Numbers (); break;
case 'x' : mul2 Numbers (); break;
case '/': div2 Numbers (); break;
default: cout<<"Invalid operator entered\n";
break;
}
a) Function add2 Numbers () that adds 2 integers.
b) Function sub2 Numbers () that subtracts 2 integers.
c) Function mul2Numbers () that multiplies 2 integers.
Answer:
Complete the code with the following code segment:
void add2Numbers(){
int num1, num2;
cout<<"Enter any two numbers: ";
cin>>num1>>num2;
cout<<num1+num2;
}
void sub2Numbers(){
int num1, num2;
cout<<"Enter any two numbers: ";
cin>>num1>>num2;
cout<<num1-num2;
}
void mul2Numbers(){
int num1, num2;
cout<<"Enter any two numbers: ";
cin>>num1>>num2;
cout<<num1*num2;
}
void div2Numbers(){
int num1, num2;
cout<<"Enter any two numbers: ";
cin>>num1>>num2;
if(num2==0){
cout<<"Division by 0 is invalid";
}else{
cout<<(float)num1/num2;}
}
Explanation:
The function added to this solution are:
add2Numberssub2Numbersmul2Numbersdiv2NumbersEach of the functions
declares two integers num1 and num2prompt user for inputsgets user inputs from the userFor add2Numbers() function:
This line adds the two integer numbers and prints the result
cout<<num1+num2;
For sub2Numbers() function:
This line subtracts the two integer numbers and prints the result
cout<<num1-num2;
For mul2Numbers() function:
This line multiplies the two integer numbers and prints the result
cout<<num1*num2;
For div2Numbers() function:
This if condtion checks if the denominator is 0
if(num2==0){
If yes, the following is printed
cout<<"Division by 0 is invalid";
If otherwise, the division is calculated and the result is printed
cout<<(float)num1/num2;
See attachment for complete program
When working at a retail store that also fixes computers, what five pieces of information should you request when a customer first brings a computer to your counter?
Answer:
From where did you purchase the computer?
How old is it?
What is the issue that you are facing?
Did you get it repaired before or is it the first time?
By what time do you want it to be repaired?
Did you get any of its parts replaced before?
A LinkedIn profile is required to be able to share your work experience and qualifications with potential employers.
True
False
Answer:
False
Explanation:
A LinkedIn profile is not required.
Mark the statements that best describe the use of spreadsheets and tables in presentations.
They should not take up much space on your slide.
The font size should be at least 18-point.
Headers should be descriptive of the cell content.
Use at least six rows.
Do not include row headers in tables.
Limit the number of columns to four.
Answer:
The font size should be at least 18-point.
Headers should be descriptive of the cell content.
Explanation:
Hello, the code I am trying is completely off as I am doing this in python---what is the correct way to write a code for this kind of problem? Thanks truly it means more than you know. I'm trying to learn as quickly as possible. Here is the problem: Output values in a list below a user-defined amount Write a program that first gets a list of integers from the input. The input begins with an integer indicating the number of integers that follow. Then, get the last value from the input, which indicates a threshold. Output all integers less than or equal to that last threshold value. Ex: If the input is: 5 50 60 140 200 75 100 the output is: 50,60,75, The 5 indicates that there are five integers in the list, namely 50, 60, 140, 200, and 75. The 100 indicates that the program should output all integers less than or equal to 100, so the program outputs 50, 60, and 75. For coding simplicity, follow every output value by a comma, including the last one. Such functionality is common on sites like Amazon, where a user can filter results.
Warm regards, and thanks truly, Lily
Here is the code I tried for python/python 3 that I need help with greatly, because the list isn’t printing horizontally for the Zybooks simulator.
# reading input from user
s = input()
# splitting the string by space
splits = s.split(" ")
# calculating the size
n = int(splits[0])
# computing the values for list
lst = []
for i in range(n):
lst.append(int(splits[i + 1]))
# extracting the threshold from splits
threshold = int(splits[-1])
# looping through each value in list
for value in lst:
# checking value is less than or equal to that last threshold value.
if value <= threshold:
# printing the value ends with comma
print(value, end=',')
This is the output I am receiving. 5 50 60 140 200 75 100,
50,
60,
75,
but the expected output must be printed horizontally. Expected output 50,60,75, Thanks again truly.
Using the knowledge in computational language in python it is possible to write a a program that first gets a list of integers from the input.
Writting the code:# reading a number
size = int(input())
# Creating a list
lst = []
# Looping for size times
for i in range(size):
# Appending input to th eend of list
lst.append(int(input()))
# Reading threshold value
threshold = int(input())
# Looping through each value in list
for x in lst:
# Comparing x and threshold
if x<threshold:
# Printing value of x
print(x,end=",")
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Answer:
See attached image for code
Explanation:
The best way to do this is to create a python list and put all those values in the list. Then it is easy to see which is the threshold - it would be the last number on the list and thereby print out values less than that number
There are many different ways of solving this problem using lists. My approach will ask the user for 5 numbers and then ask for the threshold after entering the 5 numbers. I feel that is a better and more transparent approach than having to enter 6 numbers and take only the first 5.
I am not sure how much of Python programming has been taught, I have provided the code with comments to help you.
Please ask if you need further explanation
what is an operating system
An operating system (OS) is a system software program that operates, manages, and controls the computer's hardware and software resources. The OS establishes a connection between the computer hardware, application programs, and the user.
Its primary function is to provide a user interface and an environment in which users can interact with their machines. The OS also manages the storage, memory, and processing power of the computer, and provides services like security and network connectivity.
Examples of popular operating systems are Windows, macOS, Linux, iOS, and Android. These OSs have different user interfaces and feature sets, but they all perform the same essential functions. The OS is a fundamental component of a computer system and is responsible for ensuring the computer hardware operates efficiently and correctly.
The OS performs several key tasks, including:
1. Memory management: Allocating memory to applications as they run, and releasing it when the application closes.
2. Processor management: Allocating processor time to different applications and processes.
3. Device management: Controlling input/output devices such as printers, scanners, and other peripherals.
4. Security: Protecting the computer from malware, viruses, and other threats.
5. User interface: Providing a graphical user interface that enables users to interact with their machine.
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Which statements about the use of email are accurate? Select three options.
The statements about the use of email that are accurate include:
Email is fastEmail is a system for sending messagesEmail is a form of communication.What is email?Email (electronic mail) is the exchange of computer-stored messages from one user to one or more recipients via the internet
Email is a messaging system that uses electronic devices like a computer, tablet, or phone to send and receive messages.
The exchange of computer-stored messages from one user to one or more recipients via the internet is known as email (or electronic mail). Emails are a convenient, affordable, and quick way to communicate for both personal and professional purposes. In conclusion, the communication is nearly instantaneous.
Note that the information is incomplete and an overview was given as the complete question wasn't found.
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The system administrator in your office quits unexpectedly in the middle of the day. It's quickly apparent that he changed the server password and no one knows what it is. What might you do in this type of situation?
Answer:
You should use an effective password cracker.
Explanation:
Since the system administrator decided to quit unexpectedly and apparently, he changed the server password and no one knows what it is. What you might do in this type of situation is to use an effective password cracker.
A password cracker can be defined as a software application or program used for retrieving passwords from stored locations or computer data systems. This simply means that, a password cracker is used to recover passwords in order to gain access to a computer system that is protected by authentication.
Some examples of commonly used passwords cracker are ElcomSoft, Aircrack, Hashcat, John the Ripper, Hydra, Cain and Abel, DaveGrohl, Ophcrack etc.
Write a c program that asks the user
to enter distance in KM and Petrol Price in Rs.
Program should compute estimated budget for
the travel distance (Assume your car covers 100
KM in 8 Liters of fuel). Program should run in a
loop and ask the user “Do you want to
continue?”. If user enters ‘y’ or ‘Y’ program
should repeat otherwise terminate.
Answer:
#include <stdio.h>
int main()
{
int x;
float y;
printf("Input total distance in km: ");
scanf("%d",&x);
printf("Input total fuel spent in liters: ");
scanf("%f", &y);
printf("Average consumption (km/lt) %.3f ",x/y);
printf("\n");
return 0;
}
how the sound files are compressed using lossless compression.
Data is "packed" into a lower file size using lossless compression, which uses an internal shorthand to denote redundant data. Lossless compression can shrink a 1.5 MB original file, for instance.
A music file is compressed in what way?In order to reduce the file size, certain types of audio data are removed from compressed lossy audio files. Lossy compression can be altered to compress audio either very little or very much. In order to achieve this balance between audio quality and file size, the majority of audio file formats work hard.
What enables lossless compression?A type of data compression known as lossless compression enables flawless reconstruction of the original data from the compressed data with no information loss. It's feasible to compress without loss.
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[JAVA] Write a program that reads a number between 1,000 and 999,999 from the user and prints it with a comma separating the thousands.
Here is a sample dialog;
Please enter an integer between 1000 and 999999: 23456
Output: 23,456
Answer:
import java.util.Scanner;
public class Comma {
public static void main(String[] args) {
Scanner input = new Scanner(System.in);
System.out.println("please enter an ineger between 1,000 and 999,999");
String number = input.nextLine();
System.out.println(number.replace(",", ""));
}
}
Explanation:
here is the solution
How To Approach Data Center And Server Room Installation?
Answer:
SEE BELOW AND GIVE ME BRAINLEST
Explanation:
Make a plan for your space: Determine how much space you will require and how it will be used. Consider power requirements, cooling requirements, and potential growth.
Choose your equipment: Based on your unique requirements, select the appropriate servers, storage devices, switches, routers, and other equipment.
Create your layout: Determine the room layout, including rack placement, cabling, and power distribution.
Set up your equipment: Install the servers, storage devices, switches, and other equipment as planned.
Connect your equipment: Connect and configure your servers and other network devices.
Check your systems: Check your equipment to ensure that everything is operating properly.
Maintain and monitor: To ensure maximum performance, always check your systems for problems and perform routine maintenance.
The function below takes two parameters: a string parameter: csv_string and an integer index. This string parameter will hold a comma-separated collection of integers: ‘111, 22,3333,4’. Complete the function to return the indexth value (counting from zero) from the comma-separated values as an integer. For example, your code should return 3333 (not ‘3333 *) if the example string is provided with an index value of 2. Hints you should consider using the split() method and the int() function. print.py 1 – def get_nth_int_from_CSV(CSV_string, index): Show transcribed image text The function below takes two parameters: a string parameter: csv_string and an integer index. This string parameter will hold a comma-separated collection of integers: ‘111, 22,3333,4’. Complete the function to return the indexth value (counting from zero) from the comma-separated values as an integer. For example, your code should return 3333 (not ‘3333 *) if the example string is provided with an index value of 2. Hints you should consider using the split() method and the int() function. print.py 1 – def get_nth_int_from_CSV(CSV_string, index):
Answer:
The complete function is as follows:
def get_nth_int_from_CSV(CSV_string, index):
splitstring = CSV_string.split(",")
print(int(splitstring[index]))
Explanation:
This defines the function
def get_nth_int_from_CSV(CSV_string, index):
This splits the string by comma (,)
splitstring = CSV_string.split(",")
This gets the string at the index position, converts it to an integer and print the converted integer
print(int(splitstring[index]))