APA1 - Friday

Which UML diagram is primarily used to represent the structure of a system by showing the system's classes, their attributes, operations, and the relationships between the objects?

• Sequence diagram
• Use case diagram
• Activity diagram
• Class diagram

Focuses on the order in which interactions occur between objects over time. It is used to visualise the sequence of messages exchanged between objects.

• Entity Relationship Diagram

• State Diagram

• Class Diagram

• Sequence diagram

What does the acronym SOLID stand for in the context of software engineering principles?

• SOLID stands for Single Responsibility, Open/Closed, Liskov Substitution, Interface Segregation, and Dependency Inversion.
• SOLID stands for Software, Online, Library, Internet, Data
• SOLID stands for Speed, Optimization, Load, Integration, Deployment
• SOLID stands for System, Operations, Logic, Input, Database

What does the term "tech stack" refer to in the context of software development?

• The inventory of all hardware devices used in an organisation.

• The sequence of operations performed by a processor.

• The set of technologies used to build and run a software application.

• The stack of problems and bugs found during software testing.

In software design, which pattern describes a method that creates objects without specifying the exact class of object that will be created, thereby allowing for greater flexibility in deciding which objects need to be created for a given case?

• Singleton Pattern

• Observer Pattern

• Factory Pattern

• Strategy Pattern

Answer explanation

This design pattern falls under the category of creational patterns and is used to create objects. It allows for the instantiation of objects at runtime based on certain conditions and is particularly useful for managing and organising a large number of related classes.

What is the E short for in the MERN tech stack?

• Express
• Erlang
• Elasticsearch
• Ethereum

Answer explanation

Express.js is a fast, minimalist web framework for Node.js used to build web applications and APIs.

What does 'on prem' mean in an IT context?

• Storing data on public cloud services.

• Running applications or services on external servers.

• Operating IT infrastructure within an organisation's physical premises.

• Using open-source software for development.

In Object-Oriented Programming, what is a construct that defines a contract in a class hierarchy, specifying a set of methods that must be implemented, but does not provide the implementation itself?

• Abstract Class

• Interface

• Concrete Class

• Method Overloading

Answer explanation

Interface: An interface is a contract that defines what methods a class must implement, without providing the implementation of these methods.

In software development, what term is used to describe a structured platform that serves as a foundation and standard way to build and deploy applications, providing a set of guidelines, coding standards, and tools to develop software?

• Library

• Framework

• Protocol

• Algorithm

Which of these is not a software development framework?

• Angular

• React

• Python

• Django