Cloud Computing Design Methodologies Quiz

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Questions and Answers

What is the first step in the design methodology for the IaaS service model?

  • Component Design (correct)
  • Architecture Design
  • Deployment Design
  • Integration Design

In IaaS component design, what should be evaluated for each component?

  • Testing strategies for application components
  • Implementation alternatives for design patterns (correct)
  • Cost analysis of cloud resources
  • User interface design principles

What design principle is emphasized for loosely coupled designs in IaaS architecture?

  • Messaging queues for asynchronous communication (correct)
  • Single-point failure strategies
  • Tightly integrated components
  • Synchronous communication

What is NOT required in the PaaS service model design methodology?

<p>Deployment Design (B), Architecture Design (C)</p> Signup and view all the answers

Which guideline should be followed for stateless designs in IaaS architecture?

<p>Use external status databases (B)</p> Signup and view all the answers

What is a key consideration in PaaS component design?

<p>Platform specific features (D)</p> Signup and view all the answers

Which of the following is a component of the deployment design in IaaS?

<p>Web server mapping (C)</p> Signup and view all the answers

Which statement is true regarding different PaaS offerings?

<p>They provide platform specific SDKs. (D)</p> Signup and view all the answers

What is primarily handled by the platform in PaaS environments?

<p>Deployment and scaling of applications (A)</p> Signup and view all the answers

What component is responsible for collecting social media feeds in the application tier?

<p>Listener (B)</p> Signup and view all the answers

Which database technology is utilized in the database tier of the Social Media Analytics App?

<p>MongoDB (D)</p> Signup and view all the answers

In the Image Processing application, which component corresponds to user interactions such as image submission?

<p>Web Tier (C)</p> Signup and view all the answers

Which framework is used in the architecture design of the Image Processing app?

<p>Django (B)</p> Signup and view all the answers

What is the main purpose of separating the Listener and Consumer components in the architecture design?

<p>To improve scalability of the application (D)</p> Signup and view all the answers

Which tier is responsible for rendering the results in the dashboard?

<p>Application tier (D)</p> Signup and view all the answers

What major constraint is associated with PaaS applications?

<p>Difficulties in portability (D)</p> Signup and view all the answers

Which tier of the Image Processing application stores the processed images?

<p>Storage Tier (A)</p> Signup and view all the answers

What role does the cloud storage play in the deployment design?

<p>Storing raw data (A)</p> Signup and view all the answers

Which component retrieves the feeds from the queue for analysis?

<p>Consumer (D)</p> Signup and view all the answers

What component design aspect corresponds to equation processing requests for displaying results in the Image Processing app?

<p>Application Tier (B)</p> Signup and view all the answers

In the deployment design of the app, which component is responsible for distributing network traffic?

<p>Load balancer (C)</p> Signup and view all the answers

In a multi-tier architecture, which component is typically used to manage traffic between the application servers?

<p>Load balancer (D)</p> Signup and view all the answers

Which element in the deployment design connects to cloud storage for processed images?

<p>Storage service (A)</p> Signup and view all the answers

The aggregated results of the feeds analysis are displayed to users through which application framework?

<p>Django (C)</p> Signup and view all the answers

What purpose does the web tier serve in the MapReduce app?

<p>It provides a front end for job submission. (D)</p> Signup and view all the answers

Which component is responsible for sending email notifications in the MapReduce app's application tier?

<p>Notification sender component (D)</p> Signup and view all the answers

How does the MapReduce app ensure scalability in job processing?

<p>By separating job submission and job processing components. (A)</p> Signup and view all the answers

What cloud service is used for job submission and processing in the MapReduce app?

<p>Amazon EMR (D)</p> Signup and view all the answers

What type of architecture does the Social Media Analytics application employ?

<p>Multi-tier architecture (B)</p> Signup and view all the answers

Which framework is used in the architecture design of the MapReduce app?

<p>Django (A)</p> Signup and view all the answers

What is the primary function of the analytics tier in the MapReduce app?

<p>To analyze data using the Hadoop framework. (C)</p> Signup and view all the answers

What is the main data source for the Social Media Analytics app?

<p>Twitter tweets (C)</p> Signup and view all the answers

What role does the application tier play in the Cloud Drive app?

<p>It processes requests for file uploads and user management. (D)</p> Signup and view all the answers

Which framework is used for the web tier components of the Cloud Drive app?

<p>Django (D)</p> Signup and view all the answers

What type of database is used in the database tier of the Cloud Drive app?

<p>MySQL (B)</p> Signup and view all the answers

In the deployment design of the Cloud Drive app, what is the purpose of the load balancer?

<p>To distribute traffic to multiple application servers. (A)</p> Signup and view all the answers

What functionality does the MapReduce app provide?

<p>It enables users to submit MapReduce jobs for data analysis. (C)</p> Signup and view all the answers

What is the purpose of the storage tier in the Cloud Drive app?

<p>To store documents uploaded by users. (A)</p> Signup and view all the answers

In the architecture design of the Cloud Drive app, what does the application tier correspond to?

<p>Django views (C)</p> Signup and view all the answers

Which service is the MapReduce app based on?

<p>Amazon Elastic MapReduce (EMR) (A)</p> Signup and view all the answers

Flashcards

Component Design (Cloud App Dev)

The process of identifying the building blocks of your cloud application and allocating them to specific cloud resources. This includes defining inputs, outputs, interfaces, and potential design patterns.

Architecture Design (Cloud App Dev)

Defines how different components of your cloud application interact with each other, ensuring loose coupling and a stateless design. This involves using messaging queues, functional interfaces, and external status databases.

Deployment Design (Cloud App Dev)

Mapping each component of your application to specific cloud resources like web servers, database servers, or application servers.

Component Design in PaaS

This design step is often less essential in PaaS models, as the platform handles many of the infrastructure details for you. Focus shifts to utilizing the platform's specific features and SDKs.

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Platform Specific Software (PaaS)

These are software development kits (SDKs) provided by PaaS services, like Google App Engine or Azure Web Sites. They offer tools and libraries specific to the platform to help you develop your cloud application.

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Loosely Coupled and Stateless Design

This type of design emphasizes building your application in a way where its components are loosely coupled and stateless. This means components can work independently with minimal reliance on each other, and they don't store important data locally.

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Messaging Queues (Cloud App Dev)

These are used in loosely coupled design, allowing asynchronous communication between components. Think of them like mailboxes for messages.

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Functional Interfaces (Cloud App Dev)

These are interfaces, such as REST APIs, designed for communication between components. They ensure components can interact without knowing the internal workings of each other.

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Sandbox Environments

A restricted environment for applications within PaaS, ensuring resources are isolated and performance is not affected by other applications.

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Deployment & Scaling in PaaS

The platform handles deploying and scaling the application, allowing developers to focus on coding using platform-specific tools.

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Portability in PaaS

The ability to move an application from one environment to another without significant changes. PaaS applications often face limitations in portability.

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Web Tier in Image Processing App

The user interface for image uploading and displaying the processed results.

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Application Tier in Image Processing App

Components responsible for handling user requests, image processing, and displaying results.

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Storage Tier in Image Processing App

Where processed images are stored.

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Architecture Design in Image Processing App

The detailed plan outlining how application components interact with each other.

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Deployment Design in Image Processing App

The setup and arrangement of components within the cloud environment, including load balancers, application servers, and storage.

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Web Tier in MapReduce App

A user interface for submitting MapReduce jobs.

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Application Tier in MapReduce App

Handles tasks like uploading files, creating and queuing MapReduce jobs, processing requests, and sending email notifications.

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Analytics Tier and Storage Tier in MapReduce App

Uses Hadoop to analyze data and cloud storage to store files.

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Hadoop Framework

The framework used in the analytics tier to perform distributed data processing.

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Component Design of Social Media Analytics App

Component design for a web application that collects and analyzes social media data, focusing on real-time sentiment analysis.

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Web Tier in Social Media Analytics App

Presents the results of sentiment analysis from social media data.

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Deployment Design for MapReduce App

A multi-tier architecture with a load balancer, application servers, and cloud storage, designed for scaling and reliability.

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Amazon EMR (Elastic MapReduce)

A cloud service that provides elastic and scalable computing resources.

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Multi-tier Architecture

A software architecture that separates different functionalities into distinct tiers, allowing for better scalability and maintainability. Each tier focuses on a specific aspect of the application.

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Load Balancer

A method for distributing workload across multiple servers, ensuring high availability and efficient resource utilization. It acts as a traffic manager, directing requests to different servers based on load and availability.

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Application Servers

Servers that run the application logic, processing user requests and interacting with databases or other services. They are crucial for executing the application code and delivering responses to users.

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Django Framework

A type of web application framework that simplifies the development process by providing tools for building dynamic websites and web applications. Django is known for its rapid development features and clear structure.

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MySQL Database

A common database management system that uses structured query language (SQL) for data manipulation and retrieval. MySQL offers scalability and reliability for storing large datasets.

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Cloud Storage

A platform for accessing and managing data, offering storage for files, images, videos, and other digital content. It allows users to store and share their data remotely.

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MapReduce

A distributed computing framework that breaks down large tasks into smaller, independent units that can be processed in parallel. Each unit is assigned to a different computing node, speeding up the processing time.

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Deployment

The process of deploying and configuring the application on the chosen cloud platform, including setting up servers, configuring the operating system, installing software, and configuring network settings.

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Application Tier

This tier is designed to accept incoming social media feeds (like tweets), process them, and then render the analyzed results in a dashboard.

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Database Tier

The database tier is responsible for storing and managing the aggregated data from social media analysis.

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Storage Tier

The storage tier is primarily used for storing raw data such as the original social media posts before analysis.

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Listener

The component responsible for collecting social media feeds based on specific keywords.

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Consumer

This component processes the collected feeds, performs analysis, and then stores the aggregated results in the database.

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Deployment Design

The deployment design maps out the physical resources in the cloud infrastructure that support the application.

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Architecture Design

This design involves outlining how different components like the Listener, Consumer, and database interact with each other.

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Dashboard

The features a user-friendly interface to visualize and interact with the results of the social media analysis.

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Study Notes

Introduction

  • This document is about cloud application development in Python.
  • It covers design methodologies and case studies for cloud applications.
  • The book is titled "Cloud Computing: A Hands-On Approach" by Arshdeep Bahga and Vijay Madisetti.

Design Methodology for IaaS Service Model

  • Identify application components and their functions.
  • Group components based on cloud resource needs.
  • Define component inputs, outputs, and interfaces.
  • Evaluate implementation options (e.g., MVC).
  • Define interactions between application components.
  • Design for loosely coupled, stateless systems (e.g., messaging queues, REST APIs, external databases).
  • Map components to cloud resources (web servers, app servers, databases).

Design Methodology for PaaS Service Model

  • Architecture and deployment are handled by the platform.
  • Developers need to consider platform-specific features.
  • Platform-specific SDKs are available for different PaaS offerings (e.g., Google App Engine, Windows Azure Web Sites).
  • Applications run in isolated environments (sandboxes).
  • Platform manages deployment and scaling.
  • Portability can be a constraint due to platform dependence.

Image Processing App

  • Functionality: A cloud-based image processing application with online filtering.
  • Component Design: Web tier (front ends for submission/display), Application tier (image processing components), and Storage tier (processed images).

Image Processing App - Architecture Design

  • The application uses the Django framework.
  • Web tier components map to Django templates.
  • Application tier components map to Django views.
  • Cloud storage (e.g., S3) is used for the storage tier.

Image Processing App - Deployment Design

  • Deployment architecture is multi-tier (load balancer, application servers, cloud storage).
  • Each resource uses a corresponding Amazon Web Services (AWS) cloud service.

Cloud Drive App

  • Functionality: A cloud-based document storage application.
  • Component Design: Web tier (front ends for file handling and user profiles), Application tier (components for file processing/user management), Database tier (user credentials), and Storage tier (file storage).

Cloud Drive App - Architecture Design

  • This application uses the Django framework, with mappings to templates and views.
  • The database uses MySQL. Storage utilizes cloud storage (e.g., S3).

Cloud Drive App - Deployment Design

  • Architecture is multi-tier (load balancer, application servers, cloud storage, database).
  • Uses Amazon Web Services (AWS) cloud services.

MapReduce App

  • Functionality: Allows submitting MapReduce jobs for data analysis.
  • Component Design:
    • Web tier (front end for job submission).
    • Application tier (file upload/job creation/enqueueing).
    • Analytics tier (using Hadoop framework).
    • Storage tier (for files).

MapReduce App - Architecture Design

  • Application utilizes Django framework, which maps components to templates and views.
  • Job submission and processing are separated for scalability.
  • Job requests are placed in a queue.
  • A consumer component executes MapReduce jobs and submits them to the Amazon EMR service.

MapReduce App - Deployment Design

  • Multi-tier architecture using load balancers, application servers, cloud storage, and queueing mechanisms.
  • Each resource uses a corresponding AWS cloud service.

Social Media Analytics App

  • Functionality: A cloud-based application for social media analytics, tracking keyword trends and sentiment.
  • Component Design:
    • Web tier (displaying results).
    • Application tier (listening, analysis, dashboard).
    • Database tier (MongoDB).
    • Storage tier (files).

Social Media Analytics App - Architecture Design

  • The app is scalable through separating feeds collection and processing components (Listener and Consumer).
  • The Listener fetches tweets and enqueues them to a queue. The Consumer analyzes tweets and stores results in a database.
  • Results are displayed through a Django application.

Social Media Analytics App - Deployment Design

  • Architecture is multi-tier (load balancer, application servers, queueing mechanisms, cloud storage, database).
  • Uses Amazon Web Services (AWS) cloud services.

Further Reading

  • Includes relevant articles, websites, and documentation about cloud computing and Django.

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