Serverless Computing Vs. Cloud Computing: What’s The Difference?

Serverless computing and cloud computing are closely related but serve different purposes. While cloud computing provides on-demand infrastructure and services, serverless computing abstracts infrastructure management entirely, letting developers focus only on code. Understanding their differences in scaling, cost, deployment, and security helps businesses choose the right model for efficiency, performance, and growth. 

Overview: Serverless Computing Vs. Cloud Computing 

Cloud computing is the technology that allows users to share resources and services over the internet. It prominently includes storage and backend services such as traffic distribution, health checks, timeout, etc. 

On the contrary, serverless computing is a type of cloud computing in which the cloud provider manages the backend infrastructure of an application. People often mistake it for computing technology in which no servers are included. However, this fact is wrong, and serverless apps use server resources extensively to scale their functions when needed. 

There are lot of differences between serverless computing and cloud computing. The best online course for AWS Solution Architect Associates helps you attain all the knowledge and skill about cloud computing and compare between the two courses. 

Features: Serverless Computing vs. Cloud Computing 

Let us study the key features of serverless computing and cloud computing separately:

Serverless Computing

• It allows the users to build and run applications without worrying about the servers, as the cloud providers manage them. 
• Serverless computing blends perfectly with microservices-based architecture as it promotes high levels of decoupling amongst services. 
• With serverless computing, you must pay for the services and the resources that you use and nothing. 
• This computing type comes with built-in high availability, which is also automated. 

Cloud Computing

• Cloud computing providers have data centers worldwide, which help users access the resources with a single click. 
• With cloud computing, you can undertake resource pooling as it accommodates more users in real-time. This also helps businesses scale and increase rapidly. 
• You can opt for pay-per-usage billing options to ensure you pay only for the service you utilize. 
• Cloud vendors use the best security measures to ensure your data is safe and secure. 

Key Differences Between Serverless and Cloud Computing 

Let us now elaborate in detail on Serverless Computing vs Cloud Computing:

1. Structural Difference- The main difference which separates serverless computing from cloud computing is that in cloud computing, the end user or the client must manage the infrastructure and the backend, while in serverless computing, the complete infrastructure is managed by the cloud service provider, and the end user does not have to worry about it. 
2. Differences in Scaling- Scaling is automated in serverless computing and is automatically done according to the number of requests. In cloud computing, clients need to manually scale their infrastructure up or down, depending on the requirements. 
3. Deployment- Like the backend management, deployment in cloud computing needs to be managed by the end user. And in serverless computing, the same is executed automatically as the applications are deployed as functions. 
4. Resource Allocation- While in cloud computing, the users need to allocate resources manually (based on the demand), the resources are automatically allocated in serverless computing, based on the demand and requirement. 
5. The Difference in Automation Level- Serverless computing offers users amazing automation levels, especially in undoing everyday monotonous tasks. 

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Serverless Computing Vs. Cloud Computing Cost Comparison 

Cost is an important factor which differentiates between cloud computing and serverless computing. 

Serverless computing is a pay-for-what-you-use model that lets you control the costs. Here, you have to pay only for the services you use, and a bill is generated every month based on your usage. It is beneficial for small businesses that do not use many resources.

On the other hand, cloud computing is generally a subscription-based service in which you have to pay the same monthly fee, whether you use it more or less. It is a more sought-after option as the fluctuating usage of the resources does not affect the billing cycle. 

Serverless Computing Vs. Cloud Computing Security Comparison 

In terms of security parameters, cloud computing surely takes the lead. A major difference between cloud computing and serverless computing is that the former makes penetration into the system difficult for the encroachers, as every client has dedicated servers. Also, backup and recovery in cloud computing are easy, preventing unanticipated data loss. 

Using serverless computing often becomes a cause for security concerns. This is because every company is not assigned their dedicated physical servers, and the cloud provider runs code from several customers through a single server. There is lesser control of the end-user on the underlying infrastructure, which causes security concerns for sensitive data. 

Cloud vs. Serverless Computing- Main Pros and Cons 

Cloud computing is a trending technology, and most organizations bank upon the advantages of using it. The cloud has several benefits, such as quick and easy access to information and enhanced productivity and efficiency. It also causes disruptions. Below are the pros and cons of Cloud Computing:

Cloud Computing Pros

• Unlimited Storage
• Easy Backup and Recovery
• Customization
• Affordable Pricing
• Better Control 

Cloud Computing Cons

• Technical Issues and Glitches
• Vulnerable to hack attempts
• Security Leakages
• Not Suitable for Heavy Workloads

Serverless Computing is a transformational technology for companies and individuals who understand its benefits. Below are a few pros and cons of using serverless computing, which define its efficiency and results. 

Serverless Computing Pros

• Automated Scaling
• Reduced Complexity
• Lower Costs
• No Maintenance of Infrastructure Required
• Quick and Easy Deployment
• Simple Back-end Code

Serverless Computing Cons

• Security Issues
• Privacy Issues
• Complicated Debugging

The pros and cons of both highlight the immense difference that lies between Serverless Computing vs Cloud Computing. 

Use Cases for Serverless Computing and Cloud Computing 

Generally, serverless computing supports microservices architecture, wherein the clients demand small services capable of doing a single job, such as in small businesses. Some well-known and prominently used examples of serverless computing include Microsoft Azure Functions, Google Cloud Functions, AWS Lambda, etc.

On the other hand, cloud computing is used daily by businesses and individuals for storage, recovery, backup, high-performing applications, etc. Some famous cloud computing service providers include Amazon AWS, Google Cloud, iCloud, etc. 

Future of Serverless Computing and Cloud Computing 

While serverless computing and cloud computing are quite prominent today, let us now understand what the future holds for them. 

There are a few changes and implications which can help take serverless computing to the next level. If the developers focus more on code than infrastructure, they can save time and resources. As a result, innovation and productivity will boom in organizations. 

Cloud computing, however, is currently facing a boom and, in the coming years, will become a vital part of all organizations ranging from small to large. However, significant security and user interface improvements may help it become a more feasible and sought-after choice. 

Which One is the Right Choice? 

While cloud computing today is the most prominent option used by most businesses and individuals, serverless computing is the future. It has many plus points, such as lesser costs and a high level of automation. It can run workloads via efficient allocation, unlike cloud computing which demands reservation of cloud resources. 

Cloud computing fails to serve constant demands, fluctuating anytime, especially during local and global events. That being said, if you plan to use the cloud for your personal use and limited resources, cloud computing is right for you, as most cloud computing service providers offer free services up to a limit. However, if you want technology that can meet the unwavering needs of your organization, you must go for serverless computing.

Therefore, which is better, serverless vs. cloud computing depends on your requirements and usage. 

Parting Thoughts

Understanding serverless computing vs. cloud computing is essential before making a final choice. They have both advantages and disadvantages, and you must carefully assess them before choosing one for your business or personal needs. To acquire more expertise in cloud computing, you must enroll in the Cloud Computing online course. The course will help you fast-track your career in cloud computing or relevant fields.

Contact our upGrad KnowledgeHut experts for personalized guidance on choosing the right course, career path, and certification to achieve your goals.