Questions
Background: You can create a simple form of encryption using the xor Boolean operator. For example,...

Background:
You can create a simple form of encryption using the xor Boolean operator. For example, if you want to encrypt the letter 'A':

  1. Choose another letter as a "key", say 'X'
  2. Encrypt 'A' with the xor function: encrypted = 'A' xor 'X'
  3. Now you can decrypt by xor'ing your encrypted value with 'X' again: decrypted = encrypted xor 'X'

Your task:
Write a C++ program that meets the following requirements:

  1. Asks the user for the name of an input file and a "key" character
  2. Encrypt each character in the file using the provided key and the xor function. (Note: The program should handle all standard alphanumeric characters.)
  3. Your program should save the results of the encryption into a new file with the same base name, but with a ".xor" file extension.
  4. The program should also provide an option to decrypt a given file.
  5. Include appropriate error checking.

Submit:

  • Fully documented source code

Documentation should include:

  • Pseudocode
  • Top comment block (The name of the program, The name of the programmer, The date of the program, and A brief description of the purpose of the program)
  • Function comments (Description, pre and post conditions)
  • Internal comments for all functions

In: Computer Science

In a conversation with the dean of technology for the university, you have discovered that the...

In a conversation with the dean of technology for the university, you have discovered that the university does not have a current disaster recovery and business continuity plan. Provide a 1-2-page document for the dean of technology that describes the elements to be considered for business continuity and disaster recovery. In your document, include the following: Why the business continuity and disaster recovery plan is necessary What should be considered and covered in a business continuity plan and disaster recovery plan Explanation of the major elements of disaster recovery and business continuity Discussion of different options for disaster recovery Describe how disaster recovery and business continuity are impacted by tools and best practices surrounding assurance of data accuracy and consistency

In: Computer Science

Think of an invention or piece of technology that has resulted in the elimination of a...

  • Think of an invention or piece of technology that has resulted in the elimination of a job or profession? How did it improve our lives?

  • Which jobs are most in jeopardy of being eliminated due to automation after the economy reopens?

  • Which segment of our labor population are most vulnerable to automation impacting their job opportunities

In: Economics

A detailed description of the technology based on the solution .   A description on how it...

A detailed description of the technology based on the solution .  

A description on how it will impact climate change.  

A thorough discussion as to whether implementation of this technology is feasible. Pros and Cons to it.

Answer the question as to whether this technology can significantly reduce or reverse the momentum of climate change by 2050?

Solution is below

Conservation agriculture uses cover crops, crop rotation, and minimal tilling in the production of annual crops. It protects soil, avoids emissions, and sequesters carbon.

SOLUTION SUMMARY*

Plows are absent on farms practicing conservation agriculture, and for good reason. When farmers till their fields to destroy weeds and fold in fertilizer, water in the freshly turned soil evaporates. Soil itself can be blown or washed away and carbon held within it released into the atmosphere. Tilling can make a field nutrient poor and less life-giving.

Conservation agriculture was developed in Brazil and Argentina in the 1970s, and adheres to three core principles:

  1. Minimize soil disturbance: absent tilling, farmers seed directly into the soil.
  2. Maintain soil cover: farmers leave crop residues after harvesting or grow cover crops.
  3. Manage crop rotation: farmers change what is grown and where.

The Latin root of conserve means “to keep together.” Conservation agriculture abides by these principles to keep the soil together as a living ecosystem that enables food production and helps redress climate change.

Conservation agriculture sequesters a relatively small amount of carbon—an average of half a ton per acre. But given the prevalence of annual cropping around the world, those tons add up. Because conservation agriculture makes land more resilient to climate-related events such as long droughts and heavy downpours, it is doubly valuable in a warming world.

the technology mentioned in the solution


before the solution is below is the question

In: Biology

If you slide down a rope, it’s possible to create enough thermal energy to burn your...

If you slide down a rope, it’s possible to create enough thermal energy to burn your hands or your legs where they grip the rope. Suppose a 40 kg child slides down a rope at a playground, descending 2.0 m at a constant speed. How much thermal energy is created as she slides down the rope?

In: Physics

What kind of rotatory shaft will be required for counting 10 in up and down order...

What kind of rotatory shaft will be required for counting 10 in up and down order if the speed is 1x. The shaft should be capable of tracking each count of 10. Draw the shaft and also draw the timing diagram for up/down counting. How much up/down counting is possible with 2x speed, illustrate with the help of a Timing Diagram.

In: Electrical Engineering

Explain why measuring acceleration of the cart while it is going up and down the ramp...

Explain why measuring acceleration of the cart while it is going up and down the ramp is a more accurate procedure to determine g than just letting it accelerate down the ramp. Hint: Make 2 sketches showing all important forces acting along the ramp during the up and then down trip. Base your argument on these sketches.

In: Physics

Then work on Problems and Applications 2.15,at the end of Chapter 29, answering and discussing the questions...

Then work on Problems and Applications 2.15,at the end of Chapter 29, answering and discussing the questions in that exercise.


2.15


[Related to the Making the Connection on page 977] An article in the Economist notes that gasoline prices in Japan were increasing “because of the government’s efforts to drive down the yen.”


a. Why was the Japanese government trying to drive down the yen?


b. What actions was the Japanese government taking to drive down the yen?


c. Why would driving down the yen have increased gasoline prices in Japan?


Source: “Man with Plan,” Economist, July 20, 2013.


In: Economics

5If foreign real national income decreases, will aggregate demand (AD) shift up and to the right...

5If foreign real national income decreases, will aggregate demand (AD) shift up and to the right or down and to the left? Show on a graph.

6If money from the Federal Reserve increases, will aggregate demand (AD) shift up and to the right or down and to the left? Show on a graph.

7If the wage rate decreases, will the short run aggregate supply (SRAS) shift up and to the left or down and to the right. Show on a graph

8 If productivity increases, will the short run aggregate supply (SRAS) shift up and to the left or down and to the right. Show on a graph.

9 If there is a negative shock to the economy (like coronavirus), will the short run aggregate supply (SRAS) shift up and to the left or down and to the right. Show on a graph.

10 What is the relationship between GDP and the unemployment rate? Show on a graph.

In: Economics

1. Keeping all other things constant, a shift in demand curve to the right will lead...

1. Keeping all other things constant, a shift in demand curve to the right will lead to

a. Increase the price and quantity

b. Price will go up and quantity will go down.

c. Price will go down and quantity will go up.

d. Decrease in the price and quantity

.

2. Keeping all other things constant, a shift in supply curve to the right will lead to

a. Decrease the price and quantity

b. Price will go up and quantity will go down

c. Price will go down and quantity will go up.

d. Increase the price and quantity

.

3. In a market if a product is sold below its equilibrium price, what could be interpreted.

a. None of the above.

b. The Price will go down due to this situation

c. There will be shortage in the market for this product

d. There will be surplus in the market for this product

In: Economics