Monthly Archives: June 2023

Modify the algorithm from the previous exercise so that it makes use of a rear reference. How does this affect the time complexity of this and the other operations?

Ex 4.5

Module addNodeAtEndUsingRear(int val, node *head, node *rear)

In this assignment, we will continue with the project started in  Module 1. Based on the plan last week, draw an ER diagram to demonstrate  relationship among the tables in the database.

Assignment Expectations

The following items will be assessed in particular:

1. Attributes in each table are marked clearly.
2. Primary key and foreign keys of the tables are identified.
3. Using an ER diagram to demonstrate relationship among the tables.

.

1)The Common Denominator. 

Solve the problem “Basic Programming 2”, which you can find at this web address: open.kattis.com/problems/basicprogramming2 

Although this problem has several parts, there is a common theme to all of them. Part (a) of this problem is to write down what this common theme is (one sentence max). Part (b) is to solve the problem. 

2) Spiderman is Afraid of Heights.

Solve the problem “Spiderman’s Workout”, which you can find at this web address: open.kattis.com/problems/spiderman 

The control of processes and threads are of deep concern by developers of all operating systems capable of handling “real or emulated” simultaneous computer activity. Threads are typically created by processes (initially invoked by the user or another process). Discuss how an operating system manages these processes and threads, how they are instantiated and discarded, how the activity is controlled, along with the respective advantages and disadvantages of both process and thread. Do not discuss MS Windows OS. Instead you may choose from Linux, UNIX, ROS, z/OS, or VM. 

Follow these instructions:

Main Discussion : 100 Points( 600 Words)

4 Responses : Each Response 200 words 

 1. What are the common errors to avoid in your program when using

a.  variables?

b. conditional if statements?

Use examples to explain.

Please review below post and provide a response to this. 

Computers are important resources for every company because they contain customers’ confidential data, their protection is critical. Computer security is critical because it safeguards not just the information but also the network equipment connected to it. Users have begun to evaluate a company’s security capabilities before sharing sensitive information with them. The primary objective of computer security is to discover illegal access, control risks, monitor data use to guarantee that any person does not exploit it, and avoid and neutralize assaults (Yunus et al., 2017).

Inadequate database architecture and safety execution may expose many weaknesses inside computers, allowing for unwanted access and attacks. Several of the more prevalent and well-known problems include the following: Infusions are attacks in which untrustworthy data is given to SQL, NoSQL, or JSON, causing the processor to implement undesired instructions without the necessary access. Improper identification and authorization implementations may result in the exposure of passwords and keys. Cross-site scripting (XSS) exploits extract information from a computer and transmit it to a browser without verification. Inappropriate security settings of programs, frameworks, data servers, web servers, computer networks, and technologies may also introduce unneeded hazards. 2019 (Nica et al.).

Yunus et al. (2017) developed a method for data management that assists in preventing illegal duplication. By integrating copyrighting in the system, this technique ensures the information’s copyright. For copyrights purposes, a picture and information are put into the website’s metadata, and the information is then secured and saved on the computer. A client may recover this content only if they possess a suitable security code; the software then verifies its validity and consistency using the watermark information. After verifying the keys’ and the information’s validity, the client has control over the data. There are many content protection systems in the market, each offering a distinct degree of protection (Coronel & Morris, 2016). 

Reference:

NICA, E., TUDORICA, B. G., DUSMANESCU, D.-M., POPESCU, G., & BREAZ, A. M. (2019). DATABASES SECURITY ISSUES – A SHORT ANALYSIS ON THE EMERGENT SECURITY PROBLEMS GENERATED BY NoSQL DATABASES. Economic Computation & Economic Cybernetics Studies & Research, 53(3), 113–129. https://doi.org/10.24818/18423264/53.3.19.07

Coronel, C., & Morris, S. (2016). Database systems: design, implementation, & management. Cengage Learning

1-Introduction to Loops

2-Introduction to Loops

A Gas pump calculates the cost of gas at a local gas station. The station charges $2.69 per gallon for regular grade gas, $2.79 per gallon for special grade gas, and $2.89 for super grade. Create an application that simulates the functionality of the gas pump. The user enters the number of gallons to purchase and clicks the desired grade (each grade is represented by a button whose text properties are set to Regular, Special, and Super+). The Click event handler for each button calls a method to compute the total cost from the number of gallons entered and the selected grade. (note: use the text property of each button to pass the selected grade to your method)

Assignment Content

1. Your hard work has paid off (!!!), and you will use the following workshop activities completed in class to help you write your complete draft of your discussion section:
   • Activity: Discussion, Para. 1
   • Activity: Discussion, Para. 2
   • Activity: Discussion, Para. 3
   • YOU MUST USE THE “CHECK YOUR SIMILARITY HERE” FOLDER TO ENSURE NO PLAGAIRISM BEFORE SUBMITTING HERE FOR GRADING! 

     Grading: 
     (No Title Page) 

   • p. 1 of the document must have a Level 1 Header – “Discussion” = 5 pts
   • Use activity notes to write paragraph 1 = 20 pts
   • Use Level 2 Header – “Recommendation” (5 pts), then use activity notes to write paragraph 2 = 25 pts
   • Use activity notes to write paragraph 3 = 25 pts
   • APA-7-Compliant References Page = 20 pts

Logical Design, Part 1
You have been hired by ACME Global Consulting to procure requirements for a large database. In developing database management systems, E-R models are used to graphically depict complex relationships between entities. In this assignment, you are to convince a set of clients of the benefits of using an E-R model in developing a database. Write a two to three (2-3) page paper in which you: 

1. List the advantages of a relational model specific to ACME Global Consulting.
2. Summarize in your own words the purpose of an E-R model specific to ACME Global Consulting.
3. List and describe essential components of the model such as entities, attributes, keys, relationships, roles, and dependencies specific to ACME Global Consulting.
4. Describe the need for the enhanced E-R model and how we can create sophisticated models to help us in complex environments.
5. Outline and describe the advantage of using the relational model.
6. Create an E-R diagram using graphical depicting software that could theoretically be used in a restaurant application. Note: The graphically depicted solution is not included in the required page length. Acceptable software used to depict the solution includes any drawing tool, such as Microsoft Visio, Microsoft Paint, open source alternatives or similar drawing tools. You are free to formulate constraints, entities, attributes, etc. Potential entities may include but are not limited to customers, vendors, orders, and menu items.
7. Use at least three (3) quality resources in this assignment. Note: Wikipedia and similar Websites do not qualify as quality resources. Your assignment must follow these formatting requirements:
· Be typed, double spaced, using Times New Roman font (size 12), with one-inch margins on all sides; citations and references must follow APA or school-specific format. Check with your professor for any additional instructions.
· Include a cover page containing the title of the assignment, the student’s name, the professor’s name, the course title, and the date. The cover page and the reference page are not included in the required assignment page length.
· Include charts or diagrams created in Excel, Visio, MS Project, or one of their equivalents such as Open Project, Dia, and OpenOffice. The completed diagrams / charts must be imported into the Word document before the paper is submitted. The specific course learning outcomes associated with this assignment are:
· Compose conceptual data modeling techniques to capture the information requirements.
· Use technology and information resources to research issues in database systems.