Cloud Computing Benefits Overview

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Questions and Answers

What is a key advantage of on-demand resource provisioning in cloud computing?

  • It necessitates frequent resource modification.
  • It allows for resources to be provisioned only during peak hours.
  • It requires long-term commitments for resource allocation.
  • It eliminates the need for pre-provisioning of resources. (correct)

How does cloud computing enhance architectural flexibility?

  • By restricting transitions between different architectures.
  • By facilitating easy transitions between various architectures without extensive processes. (correct)
  • By requiring significant upfront investments for migration.
  • By maintaining a rigid structure for resource allocation.

What is the role of availability zones in cloud environments?

  • They combine multiple data centers into a single logical unit.
  • They serve as backups during times of low demand.
  • They restrict distribution of instances to maintain performance.
  • They enhance resilience by providing distinct physical locations with independent resources. (correct)

What benefit does auto scaling provide in cloud environments?

<p>It automatically adjusts the number of instances based on demand. (B)</p> Signup and view all the answers

What does distributing instances across multiple racks and data centers achieve?

<p>It ensures high availability and minimizes the impact of individual failures. (B)</p> Signup and view all the answers

What defines a fault domain in cloud architecture?

<p>It refers to a logical grouping that prevents correlated failures. (B)</p> Signup and view all the answers

Which of the following is NOT an aspect of high availability strategies in cloud deployments?

<p>Creating backup data centers for low demand. (B)</p> Signup and view all the answers

What does global scalability in cloud computing allow organizations to do?

<p>Deploy resources in multiple regions to accommodate growth. (A)</p> Signup and view all the answers

What does on-demand resource provisioning eliminate?

<p>Long-term commitments (C)</p> Signup and view all the answers

Cloud computing allows for quick adaptation to changing requirements.

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

What is the purpose of availability zones in cloud computing?

<p>Enhance resilience through independent locations.</p> Signup and view all the answers

Cloud services distribute instances across multiple ______ to ensure high availability.

<p>locations</p> Signup and view all the answers

Which of the following best describes auto scaling?

<p>Automatically adjusting instances based on demand (B)</p> Signup and view all the answers

Match the following cloud concepts with their descriptions:

<p>Auto Scaling = Adjusts instances based on demand Availability Zones = Distinct physical locations for resilience Distribution of Instances = Minimizes component failure impact Fault Domains = Prevents correlated failures</p> Signup and view all the answers

High availability strategies in cloud deployments rely solely on physical components.

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

What is one key benefit of cloud computing's global scalability?

<p>Accommodating expanding customer bases.</p> Signup and view all the answers

Flashcards

On-Demand Scaling

The ability to quickly increase or decrease the number of resources based on demand, providing agility and cost-effectiveness.

Easy Resource Modi fi cation and Deletion

The ability to easily adjust or remove cloud resources as needed. It allows for quick adaptation to changing requirements, unlike the inflexibility of on-premises hardware.

Architectural Flexibility in the Cloud

This concept refers to the ease with which cloud users can transition between different architectures, such as moving from virtual machines to containers. It allows for seamless adaptation to changing requirements without significant upfront investment or lengthy migration processes.

Effortless Service Migration in Cloud

Services can be switched with minimal effort in the cloud, like migrating from virtual machines to managed databases or App Services. This simplifies the process and allows for rapid implementation of changes.

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Adaptability to Changing Needs in Cloud

The ability to adapt to evolving architecture and changing business needs quickly. Cloud resources can be modified or replaced on demand.

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Distribution of Instances for High Availability

Cloud services distribute instances across multiple racks, buildings, and data centers to ensure high availability. This redundancy minimizes the impact of individual component failures.

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Availability Zones for High Availability

Distinct physical locations within a region, each with independent power, networking, and cooling. Distributing instances across availability zones enhances resilience.

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Availability Sets and Fault Domains for High Availability

These are logical groupings of resources designed to prevent correlated failures. They help ensure that applications remain operational even if a physical component fails.

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Auto Scaling

The ability to quickly increase or decrease available resources based on actual demand. This ensures optimal resource utilization and cost-effectiveness.

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Distribution of Instances

A strategy to enhance application availability by distributing instances across multiple physical locations. This reduces the impact of failures in a single location.

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Availability Zones

Distinct physical locations within a region, each with independent power, networking, and cooling. Spreading instances across Availability Zones improves resilience.

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Availability Sets and Fault Domains

Logical groupings of resources designed to prevent simultaneous failures. They ensure applications remain operational even if a physical component fails.

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On-Demand Resource Provisioning

Cloud providers offer resources on demand, eliminating the need for pre-provisioning and long-term commitments.

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Effortless Service Migration

Cloud services allow for effortless switching between different services (e.g., from virtual machines to managed databases or App Services) with minimal effort.

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Adaptability to Changing Needs

The ability to adapt to changing architectural requirements and business needs quickly in the cloud. Resources can be modified or replaced on demand.

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Study Notes

Cloud Computing Benefits: Agility and Flexibility

  • Procurement and deployment: Cloud computing resources offer greater flexibility than on-premises hardware, easily scaling up or down to meet changing needs.
  • On-Demand Resource Provisioning: Resources are provisioned as needed, eliminating pre-provisioning and long-term commitments.
  • Easy Resource Modification and Deletion: Resources can be easily modified or deleted to adapt quickly to changing requirements, contrasting with the inflexibility of on-premises hardware.
  • Architectural Flexibility: Cloud computing enables effortless transitions between different architectures (e.g., VMs to containers) with minimal upfront investment and migration time.
  • Effortless Service Migration: Switching between services (e.g., VMs to App Services or managed databases) is simple and efficient, quickly implemented.
  • Adaptability to Changing Needs: Rapid adaptation to evolving architectural requirements and changing business needs; modify or replace services on-demand.
  • Global Scalability: Leverage numerous regions to accommodate expanding customer bases or geographic shifts; deploy resources in new regions as needed.

High Availability and Redundancy in Cloud Deployments

  • Distribution of Instances: Cloud services distribute instances across multiple locations (racks, buildings, data centers) to reduce the impact of component failures.
  • Availability Zones: Availability zones represent distinct physical locations within a region, each with independent power, networking, and cooling. Distributing instances across availability zones further enhances resilience.
  • Availability Sets and Fault Domains: Availability sets and fault domains are logical groupings of resources to prevent correlated failures, ensuring application operation even if a physical component fails (e.g., a rack or power supply).

High Availability and Disaster Recovery Strategies

  • Availability Zones: Distinct physical locations (within a region) with independent power, networking, and cooling, improving resilience by distributing instances.

Scaling Strategies

  • Auto Scaling: Automatically adjusts the number of instances based on real-time demand, ensuring optimal resource usage and cost-effectiveness.
  • Horizontal Scaling: Increasing or decreasing the number of running application instances to handle fluctuating workloads; scaling out adds instances, scaling in removes them.
  • Dynamic Instance Adjustment: Adjusting the number of instances (scaling up or down) based on current workload for efficient resource allocation during periods of high or low demand (e.g., four instances during peak, two during quiet periods).

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