Most asked interview cloud questions


The term “cloud” usually refers to any remote, Internet-based storage or large group of resources such as servers, networks, storage, services, and technology that aid businesses in cutting costs and providing superior customer care. In reality, all data is kept on physical servers in data centers; nonetheless, “the cloud” refers to a network of computers that can be accessed through the Internet. The “cloud” allows us to access and use pre-existing code on their systems. Cross-platform access to computing services is made possible by moving data processing and storage from the user’s device to servers in a knowledge center. When talking about “cloud computing,” we’re referring to the practice of storing and retrieving information over an Internet-connected network of distant servers.

The phrase “cloud computing” describes operating and using IT resources remotely. It’s a cloud storage solution that provides online data storage and maintenance for linked hardware and applications. Since cloud computing allows users to access programs through the Internet rather than downloading and installing them, it is not necessary to use a certain operating system or version of the software. Cloud computing has made our company’s software mobile and collaborative.

The following scenarios might benefit from cloud computing rather than traditional on-premises IT if the correct cloud services are deployed.

  • Cost avoidance in the realm of information technology: By using the cloud, you may save time and money spent on acquiring, installing, and maintaining hardware and software on your premises.
  • Increase adaptability and returns on investment. For instance, developers and data scientists may grant access to cloud-based apps and servers.
  • Using the cloud, you can react quickly and cheaply to traffic spikes and drops. This eliminates the need to pay for unused capacity during off-peak times. In addition, you may use your cloud provider’s worldwide network to make your apps more widely available worldwide.
Most asked interview cloud questions
Most asked interview cloud questions

Qualities of Cloud Computing

The use of cloud computing has several advantages. Here are a few illustrations:

  • You don’t need to download any extra software to access and use the service’s apps if you use a cloud service.
  • PaaS is a methodology for providing cloud computing services that enable customers to access a runtime environment for their programs and related online development and deployment resources.
  • Internet-accessible apps are software applications.
  • You may update and personalize the applications whenever and anywhere you choose with an internet connection.
  • Any client may access the cloud’s resources through the network’s general architecture.
  • Because of cloud computing, users may access on-demand services independently. No matter which cloud service is used, access to the resources will be guaranteed.
  • Cloud computing is surprisingly affordable thanks to its low overhead and outstanding productivity. The only thing needed is a working internet connection.
  • Cloud computing is reliable because of its built-in capacity to distribute workloads over several servers.

Cloud Computing Interview Questions

Most asked interview cloud questions
Most asked interview cloud questions

1. In the cloud, what kinds of deployment strategies are available?

Private clouds, public clouds, hybrid clouds, and community clouds are the four deployment options for the cloud.

  • If you’re looking for a cloud that everyone may use for free, look no further than the public cloud. Let’s use HostRooster’s Cloud Connect Service as an example.
  • Private clouds refer to cloud computing utilized only by one firm or organization.
  • Thanks to the community cloud, group members may share a data center, apps, and other resources, regardless of their own organizations.
  • The capacity to transition between a private and a public cloud as required is a key feature of the hybrid cloud model.
Most asked interview cloud questions
Most asked interview cloud questions

2. How do you comprehend the multi-cloud strategy? 

The approach uses many cloud providers instead of just one. You may take advantage of the numerous providers’ unique offerings to ease the load on your chosen cloud service provider. Having many backups means you are not as dependent on a single provider and can better weather any possible storms caused by an unexpected increase in traffic. The phrase “multi-cloud” describes a setup where several clouds may be administered from one point (portal). Sometimes, all that’s required to check in on how the clouds are doing is a simple interface.

Most asked interview cloud questions
Most asked interview cloud questions

3. How does a hypervisor contribute to cloud computing?

It’s a control panel for controlling virtual machines that promote efficient system use. The virtualization hypervisor performs the allocation, partitioning, isolating, and altering. The hardware hypervisor allows many guest operating systems to coexist on the same host machine.

VM Manager is another name for this piece of software. The following is a discussion of the two main kinds of hypervisors:

  • Type 1 hypervisors, which include Citrix XenServer and VMware ESXi, allow the guest VM to operate in a native mode on the host OS.
  • Type 2: VMs that communicate with a host operating system through hardware (like Oracle Virtual Box or Vmware Player).

Type 1 Hypervisors are recommended for mission-critical applications and workloads due to their absence of underlying middleware. Before making a meaningful comparison of performance metrics, you’ll need information on CPU overhead, maximum host and visitor RAM, and virtual processor capability.

4. Why is it crucial to make use of hybrid clouds?

Cloud bursting:

  • The public cloud shines when it comes to cloud bursting because of its access capacity and specialized software.
  • Hybrid clouds combine the advantages of public and private clouds into one convenient package, similar to HostRooster Web Services’ Virtual Private Cloud and Microsoft Azure.

vStack Cloud:

  • It is a product of VMware cloud.
  • This is not a cheap item.
  • The quality is high enough for commercial use.


  • It loses some of its dependability.
  • OpenStack allows for the use of a Web server.
  • The database’s design relies heavily on VMware’s cloud platform, vCloud.
  • 5. What are some of the advantages of cloud computing in terms of security?
  • Protecting against DoS attacks in their entirety: Today, numerous distributed denial of service attacks target the information of companies that save their files on the cloud. That’s why cloud computing employs stringent security measures to protect the server and company’s data. Businesses now prioritize data security due to the ever-increasing amount of data and the ease of access to server infrastructure. 
  • The cloud data security solution is the most reliable method for protecting critical information from unauthorized access.
  • Cloud computing’s popularity has skyrocketed due to the flexibility it provides. Users may prevent a server from being overloaded. When use reduces, the user may reduce their minutes and save money.
  • Cloud computing allows for the authentication of the identity management application server. When using cloud computing, one user may manage the privileges of another.
  • 6. Please explain what a VPN is and how it works on the cloud. 

Companies may now move their VPN infrastructure to the cloud with the help of Cloud VPN. Remote Access and Site-to-Site VPNs are two of the VPN options available. In a Site-to-Site VPN setup, the VPN hardware is part of the company’s private network. This hardware interacts with a cloud-based, virtual VPN gateway. A VPN allows for encrypted data transfer between an organization’s internal servers and the cloud. This kind of Internet connectivity is more like a direct physical link than one that requires a public IP address.

A remote access login allows users to interact with computers and other devices worldwide. VPN-as-a-service is one such solution.

Customers implement the connection logic by installing VPN applications and connecting to a VPN provider in the cloud. The cloud VPN will direct the connection when a user starts a session with a SaaS program.

7. How does cloud computing differ from mobile computing?

Your information is saved in the “cloud” of the Internet when you utilize cloud computing. Your information will be accessible from any Internet-connected device, wherever you may be. When we say “mobile computing,” we’re referring to the practice of carrying a computer, phone, or other devices with you at all times. To a large extent, cloud computing and mobile computing are interchangeable, with the latter relying on cloud computing concepts. All the data a consumer may want is available on the cloud. In contrast, mobile computing apps are hosted on a remote server, where users may access data storage and management.

8. What are the elements and HostRooster’s core features?

The following is a summary ofHostRooster’s core features:

9. What, if anything, sets ELB different from NLB and ALB?

An Application Load Balancer facilitates port-based routing (ALB). Furthermore, it may redirect traffic to Lambda and many destination ports. Regarding protocols, the Application Load Balancer only works with Layer 7 ones. It might potentially respond with the majority of the data on its own, saving the server time. Applications and microservices both benefit from the usage of ALB. This network load balancer is compatible with Layer 4 protocols like TCP and UDP (NLB). Compared to its predecessor, it has superior performance and lower resource requirements than higher-layer OSI alternatives since it runs at a lower OSI layer. A dynamic or static IP address may be used with no problems. Real-time streaming of both video and data is another example.

In contrast to the more modern Classic Load Balancers (CLBs), the venerable Elastic Load Balancer version 1 (ELB v1) is the only load balancer that enables application-specific persistent session cookies. This includes both layer seven and layer four support. ELB even works with EC2-Classic!


This article has provided various interview questions and information on clouds and cloud computing. With cloud computing, users may tap into a network of distant computers over the Internet anytime they need to. 

HostRooster is a leading web hosting solutions company. Since our founding in 2019, HostRooster has continually innovated new ways to deliver on our mission: to empower people to fully harness the web. Based in London, England, we provide comprehensive tools to users throughout the world so anyone, novice or pro, can get on the web and thrive with our web hosting packages.





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