Quiz 8

In Express.js, what is the role of the "Router" module?

• a) It defines middleware functions for the application

• b) It handles authentication and authorization

• c) It creates a sub-application with its own routing

• d) It manages database connections

What is Node.js primarily used for?

• a) Front-end web development

• b) Mobile app development

• c) Server-side scripting

• d) Machine learning

In Flutter, what is a "Widget"?

• a) A platform-specific native code component

• b) A class used for managing HTTP requests

• c) A UI element used for constructing the user interface

• d) A container for storing local data

Which component of a CPU is responsible for fetching instructions from memory?

• a) Arithmetic Logic Unit (ALU)

• b) Control Unit (CU)

• c) Memory Unit

• d) Input/Output Unit (IOU)

What does the term "pipelining" refer to in computer architecture?

• a) A method of executing multiple instructions in parallel stages

• b) A technique for compressing data for storage

• c) A process of reducing memory latency

• d) A way to optimize network communication

In Express.js, what is the purpose of the "static" middleware?

• a) To serve static HTML files

• c) To handle cross-origin requests

• d) To configure server security

What is the event loop in Node.js?

• a) A loop that generates random numbers

• b) A loop that handles user interface events

• c) A loop that manages memory allocation

• d) A loop that processes asynchronous tasks in a single thread

In Flutter, which widget is used for adding padding around other widgets?

• a) Container

• b) Margin

• c) Spacer

• d) Padding

Which part of a CPU performs arithmetic and logical operations?

• a) Arithmetic Logic Unit (ALU)

• b) Control Unit (CU)

• c) Memory Unit

• d) Input/Output Unit (IOU)

What is the purpose of a cache memory in a computer system?

• a) To store application data

• b) To provide additional storage space

• c) To improve data access times

• d) To manage input and output devices