In public key cryptography, the sender uses the recipient's public key to encrypt a message. Which of the following is needed to decrypt the message? What is the "key" to a Caesar Cipher that someone needs to know or discover to decrypt the message? Which of the following is the most accurate description of what is known as the "digital divide". The digital divide is about how Public key encryption is an encryption method which relies on separate keys for encrypting and decrypting information. Public key encryption is a highly secure encryption scheme that in which a single shared key is used by both the sender and receiver of the message.
Public key encryption makes use of certain types of problems which are easier for humans to solve than computers. Public key encryption makes use of mathematical problems which no algorithm can be used to solve.
A coffee shop is considering accepting orders and payments through their phone app and have decided to use public key encryption to encrypt their customers' credit card information.
Unit 5: Lesson 13 – Introduction to Arrays
Is this a secure form of payment? No, the internet protocols are open standards and thus everything sent over the internet is sent "in the clear". Yes, public key encryption is built upon computationally hard problems that even powerful computers cannot easily solve. Pick the two expressions involving the Modulo operation that compute to the exact same value choose 2. A programmer is writing a system that is intended to be able to store large amounts of personal data.
As the programmer develops the data system, which of the following is LEAST likely to impact the programmer's choices in designing the structure of the system? A coordinated effort by a group to simultaneously attempt to gain entry to foreign government's servers or systems. An effort by network engineers to focus all systems on catching a user or computer that has illegally gained access. You accidentally run a piece of code that automatically spreads from one computer to another, exploiting a common vulnerability.
You get an email from the IT support desk that asks you to send a reply email with your username and password to verify your account.With a partner, select one of the tools in the list to the right.
Determine what the tool is showing. Find the source of the data it allows you to explore. Complete the table below. Website Name.Europa, istruzioni per luso (interno)
What is this website potentially useful for? What kinds of problems could the provided information be used to solve? Is the provided visualization useful? Does it provide insight into the data? How does it help you look at a lot of information at once? How could it improve? Where is the data coming from? You may also need to do a web search. Is the data from one source or many?
Is it static or live? Is the source reputable? Why or why not? Add a link to the raw data if you can find one. Explain your reasoning.
Unit 4 Lesson Activity Guide - Research Yourself. Suppose someone were to research you online. What would they be able to find? What connections could they make from the existing data out there to learn even more about you? You should look through any publicly available pieces of information online.
Start by simply looking up your name in a search engine but then refine your results by adding more specific information, like the place you live. In the space below record the information you find about yourself. If you need more space, you can record your findings on the back of this sheet as well. Where you found it. Now connect the dots. If someone really wanted to find out about you online, given the information above, what would they know about you?
Of the pieces of information you found above, which do you think poses the biggest threat to your security or privacy? Why do you think so? Goals :. Understand how the Vigenere Cipher Algorithm works. Figure out what makes for a good v. Instructions :. You should have a partner for this exploration.
Click on buttons and try things out!You should be in grade 10, 11, or You will have this class first and second trimesters. You will not receive a textbook from the Media Center for this course. Materials for this course will be online.
Your textbook will be online. There will be simulations, widgets, and videos, as well as assessments and frequent vocabulary tests. Timeline may be adjusted as we work through the course.
The unit then explores the structure and design of the internet and the implications of those design decisions. Being able to digitally manipulate data, visualize it, and identify patterns, trends and possible meanings are important practical skills that computer scientists do every day. Understanding where data comes from, having intuitions about what could be learned or extracted from it, and being able to use computational tools to manipulate data and communicate about it are the primary skills addressed in the unit.
You have at least 8 class hours to complete this.
This is part 2 of your uploaded portfolio, and will be counted in your AP grade. You have at least 12 class hours to complete this. AP Computer Science Principles introduces you to the foundations of computer science with a focus on how computing powers the world. Along with the fundamentals of computing, you will learn to analyze data, create technology that has a practical impact, and gain a broader understanding of how computer science impacts people and society.
The AP CSP course is organized around seven big ideaswhich are essential to studying computer science. Computing is a creative activity. In this course, you will use the tools and techniques of computer science to create interesting and relevant digital artifacts e.
Abstraction is a central problem-solving technique in computer science. In this course, you'll use abstraction to model the world and communicate with people and machines. Data and information facilitate the creation of knowledge. Managing and interpreting an overwhelming amount of raw data is part of the foundation of our information society and technology.Airtel volte check
In this course, you will work with data to better understand the many ways in which data is transformed into information and knowledge. Algorithms are used to develop and express solutions to computational problems. They are fundamental to even the most basic everyday task. In this course, you will work with algorithms in many ways: You will develop and express original algorithms, implement algorithms in a language, and analyze algorithms analytically and empirically.Prepare for the AP Computer Science Principles exam with the largest repository of practice exam questions, broken down by subject.
Get instant feedback on how you're doing on quizzes with our autograding tools. This covers all the main topics in the course including algorithms, programming, encoding data, abstraction, the Internet, cybersecurity, simulation and modeling, drawing insights from data, and the global impact of computing. This course also includes a full length AP practice exam.
The entirely web-based review course is made up of a series of practice quizzes with multiple choice questions in the style of the AP exam. Quizzes are broken down by subject and question type.
The course ends with a full length AP practice exam.La terra dei fuochi nella terra dei cachi
Administrators: Sign up for a school administrator account here. Individuals: Sign up as an individual at home learner here.
What is CodeHS? Format The entirely web-based review course is made up of a series of practice quizzes with multiple choice questions in the style of the AP exam. Who is it for? Sign Up Sign up for a teacher account to get access to curriculum, teacher tools and teacher resources. Teacher Signup. Sign up as a student if you are in a school and have a class code given to you by your teacher. Student Signup.
Administrators: Sign up for a school administrator account here Individuals: Sign up as an individual at home learner here.Inspire and challenge your students to explore how computing and technology can impact the world. Enroll Now. About the Course Duration.Processing Arrays Lesson 15.6 Tutorial with Answers desalinationsasr.fun CS Principles
Student Prerequisites. The course introduces students to the creative aspects of programming, abstractions, algorithms, large data sets, the Internet, cybersecurity, and how computing impacts our world. Students will develop the computational thinking skills needed to fully exploit the power of digital technology and help build a strong foundation in core programming and problem-solving. Curriculum The year-long course consists of seven units, carefully structured to guide novice students through the study of computational technology.
Each unit is sequenced to first establish a context for course material, then teaching the core skills for creating and using computational tools, followed by demonstrating real-world applications of digital technology, and finally allowing students to exhibit skills they have developed.
Term 1. In Term 1, students will learn core computational thinking skills and explore the vital role of information in computing and how data can be codified, expressed, stored, and manipulated. Term 2. In Term 2, students will further explore how digital computing revolutionizes industries and enables new forms of expression, communication, and discovery.
Contact us to learn more.Activity Guide - Will it Crash? Each row in the table below presents a small program that uses if-statements and robot commands. Trace the code and plot the movements of the robot for the 3 scenarios shown to the right of the code. There are a few patterns to the ways if-statements are typically used:. Basic If-statements. Sequential If-statements. Basic If-else statements.
Nested If and if-else statements.
Unit 5 - Building Apps
Combinations of all of the above. Each section below presents an example of one of these common patterns, followed by a few problems for you to try. For each type study, and make sure you understand, the example and why each of the 3 scenarios ends up in the state shown. Code is executed sequentially from top to bottom. The code inside the if-block executes ONLY if the condition is true, otherwise the block is skipped and execution picks up on the first line after the if-block.
Scenario Use the diagram to trace each robot move. Lines of code, including if statements, are evaluated separately, one at a time, in order from top to bottom.
An if-block executes ONLY if the expression is true. Note that an earlier if-statement might change the state of the of world for an if-statement that comes later. This makes it hard to predict what will happen unless you trace the robot moves and take each line one at a time. The code in the if-block executes ONLY if the expression is true, otherwise the code in the else block will run.
But one or the other must execute. An else statement can be attached to a single if-statement. Here is a block-based. You can put if- and if-else statements inside other if-statements. All previous rules apply, but tracing the code can be tricky.K - University grade. Played times. Print Share Edit Delete. Live Game Live. Finish Editing. This quiz is incomplete! To play this quiz, please finish editing it. Delete Quiz. Question 1. Which prompt tells the computer to move to a new line for a string output.2005 cadillac cts misfire all cylinders
They write the program for you. They help you to visually plan a program. What is an Algorithm? A set of instructions. Does not use graphics to show how a process works. Does not help you plan out computer code.
Something that creates a lot of confusion. What is a variable? A location in memory that holds a value that can be read and written. A random area to store things in. Something that changes. Something that can only store numbers.
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