What is performance modeling?

• The process of approximating how well models perform using mathematics.

• A method of direct and detailed testing of systems.

• A technique for visualizing data structures.

• The process of creating 3D models for video games.

Answer explanation

Performance modeling is the process of approximating how well models perform using mathematics, making it the correct choice.

What is pipelining?

• Splitting a large task into manageable chunks and overlapping these smaller processes to speed up the overall process.

• A programming language for web development.

• A method for creating pipelines in industrial settings.

• A plumbing technique for managing water flow.

Answer explanation

Pipelining is the process of splitting a large task into smaller chunks and overlapping them to speed up the overall process.

What is visualization in the context of solving computational problems?

• A technique used exclusively in virtual reality.

• The way we visualize a problem can have a major impact on the journey to a workable solution.

• The act of making something visible to the eye.

• Creating visual art.

Answer explanation

The way we visualize a problem can have a major impact on the journey to a workable solution.

Why might a company use performance modeling?

• To reduce the time and cost associated with detailed testing.

• To increase the complexity of their systems.

• To train new employees.

• To create visual effects for movies.

Answer explanation

Performance modeling is used to reduce the time and cost associated with detailed testing, making it the correct choice.

How can performance modeling be applied in the gaming industry?

• To calculate whether servers can cope under greater strain.

• To write game storylines.

• To design game characters.

• To market games to a wider audience.

Answer explanation

Performance modeling in the gaming industry can be applied to calculate whether servers can cope under greater strain, ensuring smooth gameplay experiences for users.

What is an example of pipelining?

• A process for creating pipelines in oil industries.

• A technique for painting.

• A method of water distribution in a city.

• Executing a program in the CPU where one processor core fetches an instruction while other cores are decoding and executing instructions.

Answer explanation

Pipelining in CPU involves one core fetching an instruction while others decode and execute, improving efficiency.

How does visualization help in solving computational problems?

• By reducing the need for testing.

• By simplifying the coding process.

• By making the problem disappear.

• By creating a mental image of what a program will do or how it will work before starting to solve it.

Answer explanation

Visualization helps in solving computational problems by creating a mental image of what a program will do or how it will work before starting to solve it.

What is a practical application of visualization mentioned in the text?

• Designing fashion items.

• Creating animations for movies.

• Building architectural models.

• Understanding the structure of a binary tree.

Answer explanation

The practical application of visualization mentioned in the text is understanding the structure of a binary tree, not designing fashion items, creating animations for movies, or building architectural models.

Why is detailed testing sometimes prohibitive?

• Because it is too simple.

• Because it can be expensive and time-consuming.

• Because it requires no mathematical knowledge.

• Because it is always unnecessary.

Answer explanation

Detailed testing can be prohibitive because it can be expensive and time-consuming, requiring significant resources.

What analogy is used to explain pipelining?

• A school scheduling classes.

• A chef preparing multiple dishes.

• A library organizing books.

• A factory with a robotic assembly line.

Answer explanation

Pipelining is best explained using the analogy of a factory with a robotic assembly line, where tasks are divided and completed in stages, similar to how instructions move through different stages in a pipeline.