Which of the following are the key feature(s) of cloud computing? I. Scalability II. Self service III. Pay-per-use
I, II and III
Understanding Key Features of Cloud Computing
Cloud computing offers many benefits over traditional IT infrastructure. Several characteristics define a cloud computing environment. The question asks about the key features among Scalability, Self service, and Pay-per-use.
Examining Cloud Computing Features: Scalability
Scalability, often referred to as elasticity in the context of cloud, is a core feature. It means the ability to easily increase or decrease computing resources (like processing power, storage, or network bandwidth) based on demand. If a business needs more resources during peak times, the cloud allows them to scale up quickly. When demand drops, they can scale down, saving costs. This dynamic resource allocation is a significant advantage of cloud computing.
Examining Cloud Computing Features: Self Service
Self service is another fundamental characteristic. Users (individuals or businesses) can provision and manage computing resources on demand without requiring human interaction from the cloud service provider. Through a web portal or API, users can sign up, access, configure, and deploy resources directly. This speeds up access to resources and reduces administrative overhead.
Examining Cloud Computing Features: Pay-per-use
Pay-per-use, also known as measured service or consumption-based pricing, means customers only pay for the resources they actually consume. This is like a utility bill for electricity or water. Instead of making large upfront investments in hardware and infrastructure, users pay based on factors such as CPU usage, data storage, bandwidth consumed, etc. This cost model makes cloud computing attractive for businesses of all sizes and aligns costs with actual usage.
Conclusion on Key Cloud Features
Based on the characteristics defined by standards like the NIST (National Institute of Standards and Technology) definition of cloud computing, Scalability (Elasticity), Self service, and Pay-per-use (Measured Service) are all recognized as essential key features.
Therefore, all three options - I. Scalability, II. Self service, and III. Pay-per-use - are key features of cloud computing.
Revision Table: Cloud Computing Key Attributes
| Feature | Description |
|---|---|
| Scalability (Elasticity) | Ability to quickly and automatically scale resources up or down based on demand. |
| Self Service | Users can provision and manage resources on demand without provider interaction. |
| Pay-per-use (Measured Service) | Pricing based on actual resource consumption. |
| Broad Network Access | Resources are available over the network and accessed through standard mechanisms. |
| Resource Pooling | Provider's computing resources are pooled to serve multiple consumers, with resources dynamically assigned and reassigned according to demand. |
Additional Information on Cloud Computing Characteristics
While Scalability, Self service, and Pay-per-use are prominently discussed, other characteristics are also fundamental to the cloud computing model:
- Broad Network Access: Cloud capabilities are available over the network and accessed through standard mechanisms that promote use by heterogeneous client platforms (e.g., mobile phones, tablets, laptops, and workstations).
- Resource Pooling: The provider's computing resources are pooled to serve multiple consumers using a multi-tenant model, with different physical and virtual resources dynamically assigned and reassigned according to consumer demand. Examples of resources include storage, processing, memory, and network bandwidth.
Understanding these core characteristics is crucial for grasping the full potential and differences of cloud computing compared to traditional hosting or data center models.
Important Questions from Cloud Technology
In the context of Cloud Computing, what is the full form of PaaS?
__________ involves traversing the entire file system, marking everything that can be accessed.
- It helps in accessing, editing, storing and allowing collaboration on documents online :
- Which of the following is the most common and primary use of 'Dropbox' in a computer system?
- Which of the following is not an example of a Cloud Computing Service ?
