Ch7 Assessment: Computer Science

Jelly and Inggy are working on a software project for their school. They are confused about the stages they need to follow in the program development life cycle. Can you help them?

• First, they need to understand the problem, then plan and design the solution, after that they should start coding, and finally, they should test and debug their code.

• They should start with planning and designing, then understand the problem, after that they should test and debug, and finally, they should start coding.

• They should start with coding, then test and debug, after that they should understand the problem, and finally, they should plan and design.

• They should start with testing and debugging, then code, after that they should plan and design, and finally, they should understand the problem.

Toon, Jelly, Inggy, and Anna are working on a project to build a computer system for their school. They are asked to create a specific type of diagram. What is the diagram that represents the organization and relationships among components in their computer system called?

• A structure diagram

• A control flow diagram

• An algorithm flow diagram

• A program structure diagram

Anna is working on a project to design an algorithm for a new software. Why would she use flowcharts in her design process?

• To visually represent the organization and relationships among components in her computer system

• To visually represent the flow of control in her algorithm

• To visually represent the logical flow of steps and decisions in her algorithm

• To visually represent the structure of her computer program

Anna is planning to write an algorithm for her new project. She wants to use a language that is not formal but can help her plan and describe the logic of her algorithm. What is this language called?

• A formal programming language used to write algorithms

• A low-level programming language used to write algorithms

• A high-level, informal programming language used to plan and describe the logic of an algorithm

• A programming language used to write code for hardware devices

Toon and Anna are working on a project to build a robot. Inggy suggests they use an algorithm. What is the primary purpose of using an algorithm in this scenario?

• To provide step-by-step instructions for solving problems

• To provide a visual representation of a computer system

• To provide a formal programming language for writing code

• To provide a way to test and debug software

Jelly, Inggy, Toon, and Anna are working on a programming project. They are stuck on a problem and need to find a solution. What should they rely on?

• Well-established techniques or algorithms used to solve recurring problems

• Well-established techniques or algorithms used to test software

• Well-established techniques or algorithms used to design computer systems

• Well-established techniques or algorithms used to document code

Toon is organizing a bookshelf and wants to arrange the books in ascending order of their publication year. He came across a method called 'Bubble Sort'. What is this Bubble Sort algorithm that Toon found?

• An algorithm for sorting elements in a list or array

• An algorithm for searching for a specific element in a sorted list

• An algorithm for finding the maximum element in a list or array

• An algorithm for calculating the average of a list of numbers

Toon is developing a software for his school project. What is the purpose of validation in Toon's software development process?

• To ensure that the data input by Jelly meets the specified requirements and is accurate, complete, and reliable

• To confirm that the software or system meets its specified design and functional requirements

• To evaluate and assess the performance and accuracy of algorithms used by Inggy

• To systematically record and analyze the step-by-step execution of an algorithm used by Anna

Why is test data essential in the development of algorithms? For instance, consider a scenario where Inggy, Jelly, Toon, and Anna are developing an algorithm for a new software.

• To ensure that data input from Inggy, Jelly, Toon, and Anna meets the specified requirements and is accurate, complete, and reliable

• To confirm that the software or system they are developing meets its specified design and functional requirements

• To evaluate and assess the performance and accuracy of the algorithm they are developing

• To systematically record and analyze the step-by-step execution of the algorithm they are developing

Jelly and Inggy are working on a project together. They are developing an algorithm for their project. Why would they use trace tables in their algorithm development?

• To ensure that the data they input into their project meets the specified requirements and is accurate, complete, and reliable

• To confirm that their project meets its specified design and functional requirements

• To systematically record and analyze the step-by-step execution of their algorithm

• To evaluate and assess the performance and accuracy of their algorithm