10+ Creative Space Architects Interview Questions and Answers

IoT uses various protocols such as MQTT, CoAP, HTTP, and AMQP for communication and data transfer.

• MQTT (Message Queuing Telemetry Transport) is a lightweight protocol used for IoT devices with low bandwidth and power constraints.

• CoAP (Constrained Application Protocol) is designed for resource-constrained devices and networks.

• HTTP (Hypertext Transfer Protocol) is used for web-based communication and data transfer.

• AMQP (Advanced Message Queuing Protocol) is a messaging protocol...read more

CORS is a security feature that allows restricted resources on a web page to be requested from another domain outside the domain from which the resource originated.

• CORS is implemented via HTTP headers that allow servers to specify who can access their resources.

• For example, a web application on 'example.com' can request resources from 'api.example.com' if CORS is enabled.

• The 'Access-Control-Allow-Origin' header is crucial; it specifies which origins are permitted to access th...read more

Angular is a full-fledged framework with batteries included, while React is a library focused on UI components.

• Angular is a full-fledged framework with built-in features like routing, forms, and HTTP client.

• React is a library focused on building UI components and managing state.

• Angular uses two-way data binding, while React uses one-way data flow.

• Angular uses TypeScript by default, while React uses JavaScript (or TypeScript if preferred).

• Angular has a steeper learning curve d...read more

Frontend technologies include HTML, CSS, and JavaScript. Backend technologies include Node.js, Python, and Java.

• Frontend technologies: HTML, CSS, JavaScript

• Backend technologies: Node.js, Python, Java

Access modifiers in Swift are keywords that control the visibility and accessibility of classes, methods, properties, and other entities.

• Access modifiers include public, internal, fileprivate, and private.

• Public allows entities to be accessed from any source file in the module or from another module that imports the defining module.

• Internal restricts access to the current module.

• Fileprivate restricts access to the defining source file.

• Private restricts access to the enclosing...read more

MVC lifecycle involves Model, View, and Controller interactions, while deployment ensures the application is live and accessible.

• 1. Model: Represents data and business logic. Example: A User model that interacts with a database.

• 2. View: Displays data to the user. Example: HTML templates rendering user information.

• 3. Controller: Handles user input and updates the model. Example: A login controller processing user credentials.

• 4. Request Flow: User sends a request -> Controller ...read more

CTE stands for Common Table Expression, a temporary result set in SQL used for complex queries.

• CTE is defined using the WITH clause.

• It can be recursive or non-recursive.

• Example syntax: WITH CTE_Name AS (SELECT column1 FROM table) SELECT * FROM CTE_Name;

• CTEs improve readability and organization of SQL queries.

• They can be referenced multiple times within a query.

Bundling and minification optimize web assets by reducing file size and number of requests, improving load times and performance.

• Bundling combines multiple files (e.g., JavaScript, CSS) into a single file to reduce HTTP requests.

• Minification removes unnecessary characters (like whitespace and comments) from code to decrease file size.

• Example of bundling: Combining 'script1.js', 'script2.js', and 'script3.js' into 'bundle.js'.

• Example of minification: Transforming 'function tes...read more

Modbus RTU is binary and Modbus ASCII is text-based. RTU is more efficient and commonly used.

• RTU uses binary encoding while ASCII uses text-based encoding

• RTU is more efficient and commonly used in industrial automation

• ASCII is easier to troubleshoot and can be used for long-distance communication

• RTU has a smaller message size and faster transmission speed

• ASCII has a larger message size and slower transmission speed

Interface is a contract that defines the methods a class must implement, while abstract class can have both implemented and abstract methods.

• Interface methods are public and abstract by default, while abstract class can have abstract and non-abstract methods.

• A class can implement multiple interfaces but can only inherit from one abstract class.

• Interfaces are used for full abstraction, while abstract classes are used for partial abstraction.

• Example: Interface - Comparable, Abs...read more

HTML helpers are functions that simplify the generation of HTML markup in web applications, enhancing code readability and maintainability.

• HTML helpers are often used in MVC frameworks to generate HTML elements easily.

• Common HTML helpers include methods for creating forms, links, and other UI components.

• Example: In ASP.NET MVC, Html.TextBoxFor() generates an input element for a model property.

• HTML helpers promote DRY (Don't Repeat Yourself) principles by encapsulating repetit...read more

OOPS features include encapsulation, inheritance, polymorphism, and abstraction.

• Encapsulation: Bundling data and methods that operate on the data into a single unit (class).

• Inheritance: Ability to create new classes based on existing classes, inheriting their attributes and methods.

• Polymorphism: Ability to use a single interface for different data types or classes.

• Abstraction: Hiding the implementation details and showing only the necessary features of an object.

MQTT is a lightweight messaging protocol for IoT devices.

• MQTT stands for Message Queuing Telemetry Transport

• It uses a publish-subscribe model for communication

• It is designed for low-bandwidth, high-latency networks

• It is widely used in IoT applications

• It supports Quality of Service (QoS) levels for message delivery