Most Common Cloud Computing Interview Questions

18-Sep-2021

What is Cloud Computing?

The expanse of cloud computing has remarkably become more widespread and the future even more exponential and steeper. Cloud computing is simply the computing and renting of IT over the internet and following a pay-as-you-go method. This cloud computing includes networks, Servers, Software, Analytics, Storage, Databases, and Business intelligence services.

What are the benefits of Cloud Computing?

Cloud computing facilitates the storage of files on remote databases and retrievability anytime on demand. The benefits of cloud computing are discussed below:

Cost-cutting IT Service: Cloud computing helps companies do away with the heavy investment and expenses of owning infrastructures for their IT. Cloud facilitates configuring and managing on-premise infrastructure and makes payments only for what and when they use. Hence, it can be accessed from any device securely from anywhere over the internet.

Provides Agility to the Organization: Cloud computing enables organizations to develop, test, and build their applications rapidly and sustain their business in a constantly evolving and changing environment of the Information Technology world. Agility is crucial when it comes to business enterprise, and cloud computing provides the ultimate tool for greater adaptability and growth in the equal vertical as IT advancements.

Scalability of Business: Cloud computing allows for flexible operations and storage, and enterprises can decrease or increase their IT resource as per the varying demand, time, and situation. This feature makes cloud Computing most popular with businesses, as it enables stability and growth in the long term. 

Must Read: Why To Choose Cloud Computing Course As Your Career?

Why is there a need for Cloud Computing? 

Companies are turning to the cloud for a complete digital transformation as they are the key facilitator. Business organizations or government agencies are reaping the manifold benefits of the cloud. Still, even in personal space, the cloud has become a necessity. 

The importance and the need for cloud computing are seen even in our personal daily lives. We use the cloud for saving individual files, from essential emails to photos. We are all either directly or indirectly making use of the cloud. Every activity that we perform over the internet is likely to be hosted by cloud services.

On a broader scale, companies and organizations can only grow and propel with the services offered by cloud computing. Imagine a scenario where big companies store their data and software in a physical drive, which is highly vulnerable to getting corrupted and broken. But with the cloud, there is no issue with such inconveniences. Cloud technology is a vital force for pushing, scaling, and accelerating business with time. 

Must Read: Why Do We Need To Get A Cloud Computing Certification?

What are the types of Cloud Computing?

Multiple sets and types in Cloud Computing are in practice. The types of Cloud computing are generally modeled into three concerning services, namely:

Infrastructure as a Service (IaaS) - In this model, the cloud service provides rental for organizations for their infrastructure concerning drives for data storage, virtual servers, network, and operating systems. With this business, enterprises can do away with investing in hardware and its complexities, like maintenance and storing. Hence with IaaS, there is flexibility, reliability, and scalability.

Software as a Service (SaaS): This cloud application is companies' most commonly used service. The service is accessed based on subscription and is managed by a third-party provider. Microsoft Office 365 is one fine example of SaaS. Organizations access the application through a web browser. Hence, this service model is apt for applications requiring access from the web or mobile, short-term projects, and startups without developing software, such as launching an e-commerce website. SaaS facilitates all this.

Platform as a service (PaaS) - In this service model, a cloud service provider manages hardware and application software; however, the application is handled by the user running on the platform. This is ideal for Programmers and Developers and for Organizations who wish to create applications without making investments. PaaS provides a cloud platform to users for developing and managing applications. Programmers or users may build, test, and run applications in a pre-defined environment instead of writing extensive code to produce an application. Good examples of PaaS are Google App Engine and SQL.

There are again four essential types of Cloud Deployment models, namely:

• Public Cloud
• Private Cloud
• Hybrid Cloud
• Multi-cloud

Must Read: Things That No One Will Tell You About Cloud Computing

What are the advantages of cloud computing?

The advantages of cloud computing over the traditional hardware infrastructures are many and have become a constant need for businesses and enterprises cutting across all industries and sectors.

To point out a few, the advantage of cloud computing are:

• Cost-cutting and saving
• Higher Security
• Flexibility, Scalability, and Mobility
• Cloud Analytics providing insights for increased efficiency of business
• Easy sharing and accessibility of information facilitating teamwork and increased collaboration
• Consistent data access enabling quality control
• Provides recovery of data and information quickly regardless of power outages or natural disasters and prevents loss of important data and knowledge of business and organization.
• No manual updates are required as applications on the cloud automatically refresh and update on their own.
• It keeps organizations on the higher rung of competitive edge and helps sustain the business.

What are Cloud computing courses?

There are multiple cloud computing courses available online for individuals desiring to work with cloud and software applications.

The course equips professionals with skills and in-depth knowledge in cloud architecture, including services, hosting, etc., and can leverage the cloud accurately. Professionals will work independently without relying on the IT industry and bring desired growth to the organization.

Is Cloud Computing Certification worth it?

There are numerous Cloud computing Certification programs, and it is also considered the ticket to becoming a qualified professional or cloud expert. The certification course in Cloud computing will help you understand the core fundamentals and equip you with industry and real-world experience to handle projects in your future. The experiences you gain from the cloud computing certification courses from globally reputed institutions will come in handy in all aspects, from job hunting to seeking promotions to salary hikes. 

What are the best cloud computing certification courses?

There are various institutions providing cloud computing certification courses. Hence selecting the best one is strongly advised.

The following are the most sought-after cloud computing certification courses:

1. AWS Certified Solutions Architect - Associate
2. AWS Certified Solutions Architect - Professional
3. AWS Certified SysOps Administrator - Associate
4. AWS Certified Developer - Associate
5. Microsoft Certified Azure Administrator Associate Training
6. Google Cloud Platform Fundamentals (CP100A) Certification Training

Explain the security aspect provided by Cloud.

Cloud provides security in the following aspects:

• Management of Identity: Cloud is responsible for authorizing application services.

• Permission for Access: Permissions are granted to the user in order for them to be able to regulate the access of another user who enters the cloud environment.

• Authentication and Authorization: Only approved and authenticated users are permitted to access data and apps.

What are the Varied levels that make up cloud architecture?

The different layers vital to the Cloud Architect are:

• Storage Controller or SC

• Cloud Controller or CLC

• Cluster Controller

• Node Controller or NC

• Walrus

What is EUCALYPTUS and what is its use in Cloud computing?

It simply stands for Elastic Utility Computing Architecture For Linking Your Programs To Useful Systems. It is an open-source cloud computing software architecture that is used to construct clusters in a cloud computing platform. 

It is used in developing public, hybrid, and private clouds. It can turn your own data center into a private cloud and allows you to share its capabilities with a variety of other businesses.

Explain the use of APIs in Cloud Services.

API's which is an acronym for Application Programming Interface is of crucial use in Cloud platforms, and most importantly for the following reasons:

• It minimizes the need for writing for full-fledged programs

• It contains instructions for establishing communication between two or more applications.

• APIs facilitate the integration of cloud services with other systems and applications development. 

Explain Public Cloud and give examples

The Public cloud is an IT architecture in which a third-party supplier manages on-demand computing services and infrastructure that is shared across different enterprises via the public internet. The public clouds concentrate on few levels, such as applications, infrastructure, and platform markets. This cloud is available for everyone to use and deploy.

Examples are Microsoft Azure, Google, and Amazon.

Explain what is Private cloud and Give examples.

The private cloud is a computing service provided to a chosen group of users rather than the broader public across the Internet or a private internal network. It is also known as an internal or corporate cloud as it provides businesses with many of the benefits of a public cloud-like self-service, scalability, and elasticity, and an additional feature of control and customization available from dedicated resources over on-premises computing infrastructure.

This fully working platform can be owned, operated, and confined to a single organization or industry. Owing to security concerns, the majority of businesses have migrated to private clouds. A hosting company employs the utilization of a virtual private cloud.

Examples are: Microsoft, Ubuntu, and HP Data Centers

Explain what are Hybrid Clouds.

Hybrid clouds are created out of both public and private clouds. Since it uses the most robust method of executing cloud architecture, it is recommended above the other two clouds. It combines the best of the world's functionalities and characteristics. It enables businesses to construct their own cloud and delegate control to another party.

What are the basic characteristics of Cloud computing?

Below are the features that form the backbone of Cloud computing:

• Scalability and Elasticity
• Automatic de-provisioning and self-service provisioning
• Standardized Interfaces 
• Self-service billing with a usage-based billing model

Where and why to get Cloud computing courses?

There are numerous institutes providing cloud computing certification courses online for interested individuals and professionals looking to advance their careers. 

As cloud computing becomes increasingly important not only for the IT industry but also for business in general, the demand for individuals with the necessary cloud computing abilities has increased. Owning a cloud computing certification for completing the appropriate cloud computing courses is the most effective approach to demonstrate that a professional has the necessary knowledge and skills to compete well in the industry.

How much does a cloud computing certification for Google Cloud Architect Professional earn? 

The average salary of a Google Certified Professional Cloud Architect is $175,761 per annum. 

The Certification for Google Cloud Architect Professional provides professionals in IT with the requisite skills and expertise they need to work with Google cloud technologies in the company. The exam content outline covers extensive areas including designing and planning, managing and provisioning, and executing cloud architecture. 

The certification test also checks on the following:

• The ability to create, develop and manage scalable and secure business solutions in the cloud.

• The caliber of analyzing and optimizing business processes

• The knowledge to develop cloud apps and services with compliance in mind.

Which is the best Cloud computing Certification course for beginners?

There have been reports of more than a third of IT decision-makers having had trouble finding certified cloud specialists. Fundamental cloud training and certification have become necessary due to the rising demand for cloud expertise. Microsoft Azure Fundamentals verifies a rookie cloud professional's mastery of key cloud concepts, Azure services, security, privacy, and compliance—everything they need to get the most out of Microsoft Azure products and services.

All Microsoft role-based certifications begin with an Azure Fundamentals certification. This cloud computing certification course is the most ideal for beginners.

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