The question is incomplete. The complete question is :
Holly the Hacker has a list of 100,000 common passwords. She wants to use this list to break into UNIX-like systems that use a password file with lines consisting of:
The user's ID in plaintext.
10 bits of randomly chosen "salt," in plaintext.
The user's password, concatenated with the salt, and then encrypted.
There are very many such systems around the world, and Holly plans to steal the password files from as many as she can. The average system has 50 users in its password file.
Holly wants to create a master list of the encrypted versions of all the 100,000 passwords on her list, encrypted with all possible salt values. To create this master list, approximately how many encryptions of a password-concatenated-with-salt would Holly have to perform?
A. 2 million
B. 5 million
C. 100 million
D. 1 million
Solution :
It is given that the hacker, Holly wants break into the UNIX-like systems using 100,000 common passwords that she has on her list. The system has at an average of 50 users in the password files.
Therefore, to create a master list, Holly have to perform about 50 x 100,000 = 5,000,000 encryptions for the password concatenated-with-salt.
Thus the correct option is option (B). 5 million
5.19 LAB: Output values in a list below a user defined amount
Write a program that first gets a list of integers from 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.
Answer:
The program in Python is as follows:
n = int(input())
myList = []
for i in range(n):
num = int(input())
myList.append(num)
threshold = int(input())
for i in myList:
if i<= threshold:
print(i,end=", ")
Explanation:
This gets the number of inputs
n = int(input())
This creates an empty list
myList = []
This iterates through the number of inputs
for i in range(n):
For each iteration, this gets the input
num = int(input())
And appends the input to the list
myList.append(num)
This gets the threshold after the loop ends
threshold = int(input())
This iterates through the list
for i in myList:
Compare every element of the list to the threshold
if i<= threshold:
Print smaller or equal elements
print(i,end=", ")
The Python program below gets a list of integers, then filters that list based on a threshold value:
########################################################
# initialize the integer and output lists
integer_list = [ ]
output_list = [ ]
# first enter the number of integers that will follow
# and append it to integer list
qty = int(input("Enter the number of integers to follow: "))
integer_list.append(qty)
# next enter the number of integers and append them to integer list
for i in range(0, qty):
num = int(input("Enter an integer: "))
integer_list.append(num)
# finally enter the threshold value to be used to filter the integers
threshold = int(input("Enter the threshold value: "))
integer_list.append(threshold)
# filter the integers
for num in integer_list:
if num <= integer_list[-1]:
output_list.append(num)
# display the result
print("The values from { } that are less than or equal to { } are
{ }".format(integer_list[1:-1], integer_list[-1], output_list))
########################################################
The program first asks the user to enter the following:
The number of integers to be checkedThe integers themselvesThe threshold value to be used for filteringThe program next iterates over the integer list and filters the integers from index 1 to index -1(exclusive, since this is the threshold value) based on the element at index -1(the last element, the threshold value).
Each element that satisfies the filtering criterion (e <= threshold) is added to the output list and printed out later.
Another example of a Python program is found here: https://brainly.com/question/24941798
for macroscale distillations, or for microscale distillations using glassware with elastomeric connectors, compare the plot from your simple distillation with that from your fractional distillation. in which case do the changes in temperature occur more gradually
Answer:
Fractional Distillation
Explanation:
Fractional Distillation is more effective as compared to simple distillation. In simple distillation, the temperature changes more gradually as compared to the fractional distillation
You are designing an application at work that transmits data records to another building in the same city. The data records are 500 bytes in length, and your application will send one record every 0.5 seconds
Is it more efficient to use a synchronous connection or an asynchronous connection? What speed transmission line is necessary to support either type of connection? Show all your work.
Solution :
It is given that an application is used to transmit a data record form one building to another building in the same city, The length of the data records is 500 bytes. and the speed is 0.5 second for each record.
a). So for this application, it is recommended to use a synchronous connection between the two building for data transfer as the rate data transfer is high and it will require a master configuration between the two.
b). In a synchronous connection, 500 bytes of data can be sent in a time of 0.5 sec for each data transfer. So for this the line of transmission can be either wired or wireless.
In a non-price rationing system, consumers receive goods and services first-come, first served. Give me an example of a time when a consumer may experience this.
When someone may be giving away something for free.
Use Python to: Combine the lists x, y, and z into one multi-dimensional array. Print the multi-dimensional array. Use the values within the multi-dimensional array to print this message:
THE SECRET LIES WITHIN.
#code start
x = ["N", "O", "H", "S"]
y = ["I", "R", "L", "T"]
z = ["C", "A", "W", "E"]
# Add code here.
( Note: a correct answer is needed as soon as possible. The due date is tomorrow )
Answer: ok I got tmdirn
Explanation:
I Previous
C Reset
2/40 (ID: 34700)
E AA
Examine the following code:
Mark For Review
def area (width, height)
area = width * height
return area
boxlarea = area (5,2)
box2area = area (6)
What needs to change in order for the height in the area function to be 12 if a height is not specified when calling the function?
0 0 0 0
Add a height variable setting height =12 inside the function
Change the box2area line to box 2area = area (6,12)
Add a height variable setting height =12 before the function is declared
Change the def to def area (width, height = 12)
Answer:
D. Change the def to def area (width, height = 12)
Explanation:
Required
Update the function to set height to 12 when height is not passed
To do this, we simply update the def function to:
def area (width, height = 12)
So:
In boxlarea = area (5,2), the area will be calculated as:
[tex]area = 5 * 2 = 10[/tex]
In box2area = area (6), where height is not passed, the area will be calculated as:
[tex]area = 6 * 12 = 72[/tex]
design an if-then-else statement or a flowchart with a dual alternative decision structure that displays speed is normal if the speed variable is within the range of 24 to 56. if speed holds a value outside this range, display speed is normal
Answer:
The if statement is as follows:
if speed>=24 and speed <=56 then
print "speed is normal"
else
print "speed is abnormal"
See attachment for flowchart
Explanation:
The condition is straight forward and self-explanatory
This is executed if speed is between 24-56 (inclusive)
if speed>=24 and speed <=56 then
print "speed is normal"
If otherwise, this is executed
else
print "speed is abnormal"
A reflective cross-site scripting attack (like the one in this lab) is a __________ attack in which all input shows output on the user’s/attacker’s screen and does not modify data stored on the server.
Answer:
" Non-persistent" is the right response.
Explanation:
A cross-site category of screenplay whereby harmful material would have to include a transaction to have been transmitted to that same web application or user's device is a Non-persistent attack.Developers can upload profiles with publicly available information via social media platforms or virtual communication or interaction.In cell B13, create a formula without a function using absolute references that subtracts the values of cells B5 and
B7 from cell B6 and then multiples the result by cell B8. please help with excel!! I'm so lost
Answer:
The formula in Excel is:
=($B$6 - $B$5 - $B$7)* $B$8
Explanation:
Required
Use of absolute reference
To reference a cell using absolute reference, we have to include that $ sign. i.e. cell B5 will be written as: $B$5; B6 as $B$6; B7 as $B$7; and B8 as $B$8;
Having explained that, the formula in cell B13 is:
=($B$6 - $B$5 - $B$7)* $B$8
Given the following: int funcOne(int n) { n *= 2; return n; } int funcTwo(int &n) { n *= 10; return n; } What will the following code output? int n = 30; n = funcOne(funcTwo(n)); cout << "num1 = " << n << endl; Group of answer choices Error num1 = 60 num 1 = 30 num1 = 600 num1 = 300
Answer:
num1 = 600
Explanation:
Given
The attached code snippet
Required
The output of n = funcOne(funcTwo(n)); when n = 30
The inner function is first executed, i.e.
funcTwo(n)
When n = 30, we have:
funcTwo(30)
This returns the product of n and 10 i.e. 30 * 10 = 300
So:
funcTwo(30) = 300
n = funcOne(funcTwo(n)); becomes: n = funcOne(300);
This passes 300 to funcOne; So, we have:
n = funcOne(300);
This returns the product of n and 2 i.e. 300 * 2 = 600
Hence, the output is 600
What happens to a message when it is deleted?
It goes to a deleted items area.
It goes to a restored items area.
It is removed permanently.
It is archived with older messages.ppens to a message when it is deleted?
Answer:
it goes to the deleted items area
Explanation:
but it also depends on where you deleted it on
Answer: The answer would A
what is microsoft excel
Answer:
A spreadsheet program included in Microsoft Office suit of application. Spreadsheets present tables of value arranged in rows and columns that can be manipulated mathematically using both basic and advanced functions.
Answer:
Microsoft Excel is a digital spreadsheets program developed by windows for various platforms. You can make graphs, pivot tables, calculators, and a macro programming language alled Visual Basic created for Applications.
lolhejeksoxijxkskskxi
loobovuxuvoyuvoboh
Explanation:
onovyctvkhehehe
Answer:
jfhwvsudlanwisox
Explanation:
ummmmmm?
Discuss at least 1 Microsoft Windows security features that could protect data?
Answer:
Virus & threat protection.
Explanation:
Monitor threats to your device, run scans, and get updates to help detect the latest threats.
One Microsoft Windows security feature that can help protect data is BitLocker Drive Encryption.
BitLocker is a full-disk encryption feature available in certain editions of Microsoft Windows, such as Windows 10 Pro and Enterprise. It provides protection for data stored on the system's hard drives or other storage devices.
By encrypting the entire drive, BitLocker helps safeguard the data against unauthorized access or theft, even if the physical drive is removed from the device. It uses strong encryption algorithms to convert the data into an unreadable format, ensuring that only authorized users with the appropriate encryption key or password can access and decrypt the data.
BitLocker also provides additional security features, such as pre-boot authentication, which requires users to enter a password or use a USB key to unlock the drive before the operating system loads. This prevents unauthorized users from accessing the encrypted data, even if they have physical access to the device.
Overall, BitLocker Drive Encryption is a powerful security feature in Microsoft Windows that can effectively protect data by encrypting entire drives and adding layers of authentication and protection against unauthorized access.
Learn more about Security here:
https://brainly.com/question/13105042
#SPJ6
What new details are you able to see on the slide when the magnification is increased to 10x that you could not see at 4x? What about 40x?
Answer:
x=10
Explanation:
just need points because i can scan questions anymore
Someone help in test ASAP
1. What is your biggest concern about cybercrime and why?
(please answer in at least 3 complete sentences)
Answer:
While it may seem like we are already overwhelmed by the amount of cyberattacks occurring daily, this will not slow down in 2018. In fact, with a recent increase in cybercriminal tools and a lower threshold of knowledge required to carry out attacks, the pool of cybercriminals will only increase. This growth is a likely response to news media and pop culture publicizing the profitability and success that cybercrime has become. Ransomware alone was a $1 billion industry last year. Joining the world of cybercrime is no longer taboo, as the stigma of these activities diminishes in parts of the world. To many, it’s simply a “good” business decision. At the same time, those already established as “top-players” in cybercrime will increase their aggressive defense of their criminal territories, areas of operations and revenue streams. We may actually begin to see multinational cybercrime businesses undertake merger and acquisition strategies and real-world violence to further secure and grow their revenue pipeline.
Explanation:
Sensors send out ............ signals
Answer:
mhmm................... ok
Write a static method named lowestPrice that accepts as its parameter a Scanner for an input file. The data in the Scanner represents changes in the value of a stock over time. Your method should compute the lowest price of that stock during the reporting period. This value should be both printed and returned as described below.
Answer:
Explanation:
The following code is written in Java. It creates the method as requested which takes in a parameter of type Scanner and opens the passed file, reads all the elements, and prints the lowest-priced element in the file. A test case was done and the output can be seen in the attached picture below.
import java.io.File;
import java.io.FileNotFoundException;
import java.util.Scanner;
class Brainly{
public static void main(String[] args) throws FileNotFoundException {
Scanner console = new Scanner(System.in);
System.out.print("file location: ");
String inputLocation = console.next();
File inputFile = new File(inputLocation);
Scanner in = new Scanner(inputFile);
lowestPrice(in);
}
public static void lowestPrice(Scanner in) {
double smallest = in.nextDouble();
while(in.hasNextDouble()){
double number = in.nextDouble();
if (number < smallest) {
smallest = number;
}
}
System.out.println(smallest);
in.close();
}
}
what is function of spacebar
Answer:
The function of a spacebar is to enter a space between words/characters when you're typing
To input a space in between characters to create legible sentences
The following method is intended to return true if and only if the parameter val is a multiple of 4 but is not a multiple of 100 unless it is also a multiple of 400. The method does not always work correctly public boolean isLeapYear(int val) if ((val 4) == 0) return true; else return (val & 400) == 0; Which of the following method calls will return an incorrect response?
A .isLeapYear (1900)
B. isLeapYear (1984)
C. isLeapYear (2000)
D. isLeapYear (2001)
E. isLeapYear (2010)
Answer:
.isLeapYear (1900) will return an incorrect response
Explanation:
Given
The above method
Required
Which method call will give an incorrect response
(a) will return an incorrect response because 1900 is not a leap year.
When a year is divisible by 4, there are further checks to do before such year can be confirmed to be a leap year or not.
Since the method only checks for divisibility of 4, then it will return an incorrect response for years (e.g. 1900) that will pass the first check but will eventually fail further checks.
Hence, (a) answers the question;
Express 0.000357 in standard form
Answer:
0.000357 this is standard form
hope this helps
have a good day :)
Explanation:
0.0003+0.00005+0.000007= expanded form
4. Interaction between seller and buyer is called___.
A. Demanding
B. Marketing
C. Transactions
D. Oppurtunity
Answer:
C. Transactions.
Explanation:
A transaction can be defined as a business process which typically involves the interchange of goods, financial assets, services and money between a seller and a buyer.
This ultimately implies that, any interaction between a seller and a buyer is called transactions.
For example, when a buyer (consumer) pays $5000 to purchase a brand new automobile from XYZ automobile and retail stores, this is referred to as a transaction.
Hence, a transaction is considered to have happened when it's measurable in terms of an amount of money (price) set by the seller.
Price can be defined as the amount of money that is required to be paid by a buyer (customer) to a seller (producer) in order to acquire goods and services. Thus, it refers to the amount of money a customer or consumer buying goods and services are willing to pay for the goods and services being offered. Also, the price of goods and services are primarily being set by the seller or service provider.
why stress testing is needed?
Answer:
To be able to test a product if it can withstand what it is supposed to before being released to the public for saftey reasons.
Answer:
Stress testing involves testing beyond normal operational capacity, often to a breaking point, to observe the results. Reasons can include:
Helps to determine breaking points or safe usage limits Helps to confirm mathematical model is accurate enough in predicting breaking points or safe usage limits Helps to confirm intended specifications are being met Helps to determine modes of failure (how exactly a system fails) Helps to test stable operation of a part or system outside standard usage Helps to determine the stability of the software.Stress testing, in general, should put computer hardware under exaggerated levels of stress to ensure stability when used in a normal environment.
To quit, a user types 'q'. To continue, a user types any other key. Which expression evaluates to true if a user should continue
Answer:
!(key == 'q')
Explanation:
Based on the description, the coded expression that would equate to this would be
!(key == 'q')
This piece of code basically states that "if key pressed is not equal to q", this is because the ! symbol represents "not" in programming. Meaning that whatever value the comparison outputs, it is swapped for the opposite. In this case, the user would press anything other than 'q' to continue, this would make the expression output False, but the ! operator makes it output True instead.
For this activity, you will practice being both proactive and reactive to bugs. Both are necessary to get rid of errors in code.
Proactive:
Log in to REPL.it and open your Calculator program that you built in Unit 5.
In the index.js file, type and finish the following block of code that validates the input to make sure both are numbers (not letters or symbols):
try{
if (isNaN(…) || isNaN(…)){
throw …
}
else{
document.getElementById("answer").innerHTML = num1 + num2;
}
}
catch(e){
document.getElementById("answer")…
}
(Note: The || symbol is used in JavaScript to mean or . You can find this key to the left of the Z key if you’re using a PC or directly above the Enter key if you’re using a Mac.)
Add the finished code above to the correct place in your add() function. Make sure to delete this line since we moved it into the try block:
document.getElementById("answer").innerHTML = num1 + num2;
Paste the same code into the subtract() , multiply() , and divide() functions, making the necessary changes. Be careful with your divide() function since you already have an extra if else statement checking for a division by 0 mistake. (Hint: Cut and paste the entire if else statement inside the else block of your try statement.)
Test your program by typing in letters or symbols instead of numbers. Make sure you get the appropriate error message. (Note: The function is not supposed to check whether the text field is empty, only whether it contains non-numbers.)
When you are finished, share the link to your webpage with your teacher by clicking on the share button and copying the link.
Reactive:
The following Python program should print the sum of all the even numbers from 0 to 10 (inclusive), but it has two bugs:
x = 0
sum = 0
while x < 10:
sum = sum + x
x = x + 1
print(sum)
Complete a trace table and then write a sentence or two explaining what the errors are and how to fix them. You can choose whether to do the trace table by hand or on the computer. Turn in your trace table and explanation to your teacher.
Answer:
okk
Explanation:
In C complete the following:
void printValues ( unsigned char *ptr, int count) // count is no of cells
{
print all values pointed by ptr. //complete this part
}
int main ( )
{
unsigned char data[ ] = { 9, 8, 7, 5, 3, 2, 1} ;
call the printValues function passing the array data //complete this part
}
Answer:
#include <stdio.h>
void printValues ( unsigned char *ptr, int count) // count is no of cells
{
for(int i=0; i<count; i++) {
printf("%d ", ptr[i]);
}
}
int main ( )
{
unsigned char data[ ] = { 9, 8, 7, 5, 3, 2, 1} ;
printValues( data, sizeof(data)/sizeof(data[0]) );
}
Explanation:
Remember that the sizeof() mechanism fails if a pointer to the data is passed to a function. That's why the count variable is needed in the first place.
Consider the following class definitions.
public class Apple
{
public void printColor()
{
System.out.print("Red");
}
}
public class GrannySmith extends Apple
{
public void printColor()
{
System.out.print("Green");
}
}
public class Jonagold extends Apple
{
// no methods defined
}
The following statement appears in a method in another class.
someApple.printColor();
Under which of the following conditions will the statement print "Red" ?
I. When someApple is an object of type Apple
II. When someApple is an object of type GrannySmith
III. When someApple is an object of type Jonagold
a. I only
b. II only
c. I and III only
d. II and III only
e. I, II, and III
You are tasked with writing a program to process sales of a certain commodity. Its price is volatile and changes throughout the day. The input will come from the keyboard and will be in the form of number of items and unit price:36 9.50which means there was a sale of 36 units at 9.50. Your program should read in the transactions (Enter at least 10 of them). Indicate the end of the list by entering -99 0. After the data is read, display number of transactions, total units sold, average units per order, largest transaction amount, smallest transaction amount, total revenue and average revenue per order.
Answer:
Here the code is given as,
Explanation:
Code:
#include <math.h>
#include <cmath>
#include <iostream>
using namespace std;
int main() {
int v_stop = 0,count = 0 ;
int x;
double y;
int t_count [100];
double p_item [100];
double Total_rev = 0.0;
double cost_trx[100];
double Largest_element , Smallest_element;
double unit_sold = 0.0;
for( int a = 1; a < 100 && v_stop != -99 ; a = a + 1 )
{
cout << "Transaction # " << a << " : " ;
cin >> x >> y;
t_count[a] = x;
p_item [a] = y;
cost_trx[a] = x*y;
v_stop = x;
count = count + 1;
}
for( int a = 1; a < count; a = a + 1 )
{
Total_rev = Total_rev + cost_trx[a];
unit_sold = unit_sold + t_count[a];
}
Largest_element = cost_trx[1];
for(int i = 2;i < count - 1; ++i)
{
// Change < to > if you want to find the smallest element
if(Largest_element < cost_trx[i])
Largest_element = cost_trx[i];
}
Smallest_element = cost_trx[1];
for(int i = 2;i < count - 1; ++i)
{
// Change < to > if you want to find the smallest element
if(Smallest_element > cost_trx[i])
Smallest_element = cost_trx[i];
}
cout << "TRANSACTION PROCESSING REPORT " << endl;
cout << "Transaction Processed : " << count-1 << endl;
cout << "Uints Sold: " << unit_sold << endl;
cout << "Average Units per order: " << unit_sold/(count - 1) << endl;
cout << "Largest Transaction: " << Largest_element << endl;
cout << "Smallest Transaction: " << Smallest_element << endl;
cout << "Total Revenue: $ " << Total_rev << endl;
cout << "Average Revenue : $ " << Total_rev/(count - 1) << endl;
return 0;
}
Output:
Modity your program Modify the program to include two-character .com names, where the second character can be a letter or a number, e.g., a2.com. Hint: Add a second while loop nested in the outer loop, but following the first inner loop, that iterates through the numbers 0-9 2 Program to print all 2-letter domain names Run 3 Note that ord) and chr) convert between text and ASCII/ Uni 4 ord (.a.) is 97, ord('b') IS 98, and so on. chr(99) is 'c", et Running done. domain Two-letter a. com ?? . com ac.com ad. com ae.com ai. com ag.com names: 6 print'Two-letter domain names:" 8 letter1 'a' 9 letter2 10 while letter! < 'z': # Outer loop letter2a" while letter2 <- "z': # Inner loop 12 13 14 print('%s %s.com" % (letteri, letter2)) letter2chr(ord (letter2) 1) 15 letterl chr(ord(letter1) + 1) 16 17 h.com ai.com j com ak.com Feedback?
Answer:
The addition to the program is as follows: digit = 0
while digit <= 9:
print('%s%d.com' % (letter1, digit))
digit+=1
Explanation:
This initializes digit to 0
digit = 0
This loop is repeated from 0 to 9 (inclusive)
while digit <= 9:
This prints the domain (letter and digit)
print('%s%d.com' % (letter1, digit))
This increases the digit by 1 for another domain
digit+=1
See attachment for complete program
mention 3 components that can be found at the back and front of the system unit
Answer:
Back
Power port, USB port, Game port
Front
Power button, USB port, Audio outlet
Explanation:
There are several components that can be found on the system unit.
In most (if not all) computer system units, you will find more component at the back side than the front side.
Some of the components that can be found at the back are:
Ports for peripherals such as the keyboard, mouse, monitor, USB ports, power port, etc.
Some of the components that can be found at the back are:
The power button, cd rom, audio usb ports, several audio outlets, video port, parallel ports, etc.
Note that there are more components on the system units. The listed ones are just a fraction of the whole components