Cybersecurity Fundamentals and Advanced Concepts

Posted by on Mar 31, 2024 in Computers | 0 comments

Cybersecurity Basics

  • Security Models and Principles:

    • Bell-LaPadula Model: Ensures confidentiality with “no read up, no write down” principles.

    • Biba Model: Integrity-focused, with “no write up, no read down” rules to prevent data corruption.

    • Clark-Wilson Model: Ensures transaction integrity and separation of duties.

    • Least Privilege & Defense in Depth: Fundamental principles for minimal access and multi-layered defense strategies.

  • Authentication & Access Control:

    • Strong authentication mechanisms,

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Software Development Concepts and Methodologies

Posted by on Mar 24, 2024 in Computers | 0 comments

User Categorization

User categorization is most effective when the target audience is diverse, allowing for distinct criteria.

Macro-Iterative Strategy

This strategy aims to evolve systems through periodic releases, ensuring continuous improvement and adaptation.

Object-Oriented Development

Object-oriented development promotes code reuse, enhancing efficiency and scalability in software development.

Mission-Critical Systems

These systems face extreme risk exposure, necessitating significant quality assurance

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Human-Computer Interaction: Channels, Models, and Interfaces

Posted by on Mar 22, 2024 in Computers | 0 comments

Lecture 8:

Input-Output Channels:

Input-Output channels in the context of human-computer interaction (HCI) refer to the means by which users interact with a computer system. Inputs are the actions or signals provided by the user to the system, while outputs are the responses or feedback provided by the system to the user. These channels serve as bridges between the user and the computer, facilitating communication and interaction.

Input via Senses:

Input via senses refers to the process of providing

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Understanding TCP Three-Way Handshake and Application Layer Protocols

Posted by on Mar 20, 2024 in Computers | 0 comments

TCP THREE WAY HANDSHAKE: Hosts track each data segment within a session and exchange information

about what data is received using the information in the TCP header. TCP is a full-duplex protocol, where each connection represents two one-way communication streams or sessions. To establish the connection, the hosts perform a three-way handshake. Control bits in the TCP header indicate the progress and status of the connection.The three-way handshake:

  • Establishes that the destination device is present
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C++ Functions and Arrays: A Comprehensive Guide

Posted by on Mar 14, 2024 in Computers | 0 comments

CIS-265 Test 1 Cheat Sheet


Chapter 6

Local variables lost their values between calls to the function in which they are defined because they are created in memory when the function begins execution and are destroyed when the function ends.


The difference between an argument and a parameter variable is that an argument is a value passed to a function and a parameter variable is a variable local to the function which receives the argument. The argument’s value is copied into the parameter variable.


You
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Bootstrap: Free Front-End Framework for Web Development

Posted by on Mar 3, 2024 in Computers | 0 comments

Bootstrap

Bootstrap is a free front-end framework for faster and easier web development. It includes HTML and CSS-based design templates for typography, forms, buttons, tables, navigation, modals, image carousels, and many other elements, as well as optional JavaScript plugins. Bootstrap also gives you the ability to easily create responsive designs.

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