Question

when enciphering a message, Plain Text is changed into

A) Code Text

B) Caesar Text

C) Euler Text

D) Plain Text

The Deciphering formula for C = (11P + 16)mod 26 is

A) P=(19C+16)mod26

B) P=19(C−16)mod26

C) P=(19C−16)mod26

D) P=19(C+16)mod26

Answer #1

Cryptography is the process of **converting**
between readable **text**, called
**plaintext** , and an unreadable form, called
ciphertext or code text .The sender **converts** the
**plaintext message** to ciphertext. This part of the
process is called encryption

When enciphering a message, the plain text is comlnverted into code text.

Write the code to return the output:
Code:
id <- c(5, 6, 7, 8, 9)
prod <- c("F", "H", "B", "S", "D")
units <- c(12, 19, 44,26, 43)
df <- data.frame(id, prod, units)
Output must be:
[1] 12 19 44 26 43

Convert each of the below C code snippet to LEGv8 assembly code.
Assume variable a, b, and c is stored in registers X19, X20, and
X21 respectively. Base address of d is stored in register X22.
Comment your assembly code. (24 Points)
a. if (a > b) d[a] = b + 8;
else d[a] = b - 16;
b. for (i=0;i<a; i++)
a = d[i] + c;
c. i = 0;
while ( d[i] == b)
if(( a - i...

C Programming
I am trying to also print the frequency and the occurrence of an
input text file. I got the occurrence to but cant get the
frequency.
Formula for frequency is "Occurrence / total input
count", this is the percentage of occurrence.
Can someone please help me to get the frequency to work.
Code:
int freq[26] = {0};
fgets(input1, 10000, (FILE*)MyFile);
for(i=0; i< strlen(input); i++) {
freq[input[i]-'a']++;
count++;
}
printf("Text count = %d", count);
printf("\n");
printf("Frequency of plain text\n");...

Huffman Codes:
You are give a text file containing only the characters
{a,b,c,d,e,f}. Let F(x) denote the frequency of a character x.
Suppose that: F(a) = 13, F(b) = 4, F(c) = 6, F(d) = 17, F(e) = 2,
and F(f) = 11.
Give a Huffman code for the above set of frequencies, i.e.
specify the binary encoding for each of the six characters.

And need to be writing in C++ language
Programm need to start with
#include<fstream>
Prepare a text file data_in.txt with the following information
(highlight the piece of text below with numbers and copy it to a
text file):
54, 70, 75, 63, 17, 59, 87, 16, 93, 81, 60, 67, 90, 53, 88, 9, 61,
8, 96, 98, 12, 34, 66, 76, 38, 55, 58, 27, 92, 45, 41, 4, 20, 22,
69, 77, 86, 35, 19, 32, 49, 15,...

A) When is it appropriate to conduct a one sample
t-test?
B)What is the formula for a one sample t-test?
C)What is the main difference between the formula for a z-test
and the formula for a one sample t-test?
D)If p > α then what should you do?

Write a C++ program to demonstrate thread synchronization. Your
main function should first create a file called synch.txt. Then it
will create two separate threads, Thread-A and Thread-B. Both
threads will open synch.txt and write to it. Thread-A will write
the numbers 1 - 26 twenty times in nested for loops then exit. In
other words, print 1 - 26 over and over again on separate lines for
at least 20 times. Thread-B will write the letters A - Z...

Use python language please
#One of the early common methods for encrypting text was
the
#Playfair cipher. You can read more about the Playfair cipher
#here: https://en.wikipedia.org/wiki/Playfair_cipher
#
#The Playfair cipher starts with a 5x5 matrix of letters,
#such as this one:
#
# D A V I O
# Y N E R B
# C F G H K
# L M P Q S
# T U W X Z
#
#To fit the 26-letter alphabet into...

Code Example 8-1
1. int count = 1;
2. int item_total = 0;
3. int item = 0;
4. while (count < 4) {
5. cout << "Enter item
cost: ";
6. cin >> item;
7. item_total += item;
8. ++count;
9. }
10. int average_cost = round(item_total / count);
11. cout << "Total cost: " << item_total <<
"\nAverage cost: " << average_cost;
(Refer to Code Example 8-1.) If the user enters
5, 10, and 15 at the prompts, the output is:
Total...

The positive square root of variance is called:
Select one:
A. z-score
B. mean
C. Standard Deviation
D. dispersion
QUESTION 12
Not yet answered
Marked out of 2.00
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Question text
A cell phone company found that 75% of all customers want text
messaging on their phones, 80% want photo capability, and 65% want
both. What is the probability that a customer will want at least
one of them?
Select one:
A. 0.90
B. 0.81
C. 0.87
D. 0.60...

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