Code.Org Ap Computer Science Principles Unit 1 Test Answer Key

Code.org AP Computer Science Principles Unit 1 Test Answer Key

Computer Science Principles is a foundational course that introduces students to the fundamentals of computing. The course is taught using the Code.org curriculum, which is designed to be engaging and accessible to all students. The curriculum includes nine units, each of which focuses on a different topic. Unit 1 covers the basics of computing, including computer systems, networks, and the Internet.

Answer Key for Unit 1 Test

1. What is the difference between hardware and software?

   • Hardware refers to the physical components of a computer system, such as the CPU, memory, and storage devices.
   • Software refers to the programs that run on a computer system, such as the operating system, web browsers, and word processors.

2. What is a network?

   • A network is a group of computers that are connected to each other. Networks allow computers to share resources, such as files, printers, and Internet access.

3. What is the Internet?

   • The Internet is a global network of computers. The Internet allows computers to communicate with each other and access information from all over the world.

4. What are the benefits of cloud computing?

   • Cloud computing offers several benefits, including:
     • Scalability: Cloud computing allows users to scale their resources up or down as needed, which can save money and improve efficiency.
     • Reliability: Cloud computing providers offer high levels of reliability, ensuring that users’ applications and data are always available.
     • Security: Cloud computing providers offer robust security measures to protect users’ data and applications.

5. What are the challenges of cloud computing?

   • Cloud computing also has some challenges, including:
     • Cost: Cloud computing can be expensive, especially for businesses that use a lot of resources.
     • Security: While cloud computing providers offer robust security measures, it is important to be aware of the risks involved in storing data in the cloud.
     • Vendor lock-in: Once a business has migrated to a cloud computing provider, it can be difficult to switch to another provider.

6. What is the difference between a web page and a website?

   • A web page is a single document that is published on the Internet.
   • A website is a collection of web pages that are linked together.

7. What is HTML?

   • HTML (Hypertext Markup Language) is the code that is used to create web pages. HTML tags are used to define the structure and content of a web page.

8. What is CSS?

   • CSS (Cascading Style Sheets) is the code that is used to style web pages. CSS rules are used to define the appearance of a web page, such as the font, color, and layout.

9. What is JavaScript?

   • JavaScript is a programming language that is used to add interactivity to web pages. JavaScript can be used to create animations, games, and other interactive features.

10. What are the benefits of using a content management system (CMS)?

    • CMSs offer several benefits, including:
      • Ease of use: CMSs are designed to be easy to use, even for non-technical users.
      • Flexibility: CMSs allow users to create and manage their websites without having to write code.
      • Security: CMSs provide built-in security features to protect websites from attack.