Cloud Computing is given interview questions and responses that have been requested in many companies. Let's look at the list of top interview questions on Cloud Computing.
Cloud computing is a new age computer technology which is based on the Internet. It is the next level technology that uses clouds to provide the services wherever and wherever the customer wants them. It offers a mechanism for accessing various servers around the world.
The main benefits of cloud computing are:
A cloud is a combination of networks, hardware , services, storage, and interfaces that can provide as a service computing. It has 3 users:
Below are the various layers that cloud architecture uses:
It is a cloud architecture layer, too. This model is based on the model of facilities, which includes resources such as computers, storage and network. It is responsible for providing full infrastructure layer virtualisation, rendering it appear like a single cloud and invisible to the outside world.
In cloud computing, there are different types of data such as emails, contracts, images, blogs, etc. Since we know the data is growing day by day, different forms of data are needed to store these new data. For starters, if you want to store video, then you need a different form of data.
These are the different deployment model in cloud computing:
The public clouds are available for use and deployment by people. For instance: Google & Amazon etc. Public clouds rely on a few levels, such as cloud applications, providing infrastructure and offering network markets.
In definition, mobile computing and cloud computing are a little the same. Mobile computing follows the cloud computing concept. Cloud computing provides users with the data they need when operating on the remote cloud of mobile computing, which allows user access for storage and maintenance.
It is a cloud architecture layer, too. This model is based on the model of facilities, which includes resources such as computers, storage and network. It is responsible for providing full application layer virtualization technology, rendering it appear like a single cloud and invisible to the outside world.
Scalability is a function of cloud computing that is used to handle the increasing workload by increasing the amount of resource capacity in proportion. The architecture provides on demand resources through the use of scalability, if the requirement is raised by traffic. While Elasticity is a characteristic that dynamically provides the concept of commissioning and decommissioning of large quantities of resource capacity. It is measured by the speed at which resources come on demand and the resource utilisation.
Utility computing is an organisation-managed plug-in which determines what kind of services to deploy from the cloud. It helps people to only pay for what they're using.
For cloud computing on a large scale the following technologies are used:
System Integrator provides a complicated process strategy which is used to design a cloud platform. It provides a more efficient hybrid and private cloud network, as integrator has all the information about building the data centre.
MongoDB, CouchDB, LucidDB are samples of the database on open source cloud computing platform.
The cost of the traditional datacenter is higher than cloud because there are overheating concerns and other software and hardware limitations with traditional databases.
Simple Multi-tenancy: Every user has independent resources in this mode, and is exclusive to other users. This mode is effective.
Multi-tenancy fine grain:: In this mode, multiple users will share resources but the interface remains the same.
Hybrid clouds are a blend of private clouds and public clouds. It's favoured over all clouds because applying cloud architecture provides the most stable solution. It contains the characteristics and functionalities of both worlds. It allows organisations to create their own cloud, and also allows them to hand someone else access.
The platforms used by Apache Hadoop and MapReduce for large-scale cloud computing are.
APIs (Application Programming Interfaces) are used in the cloud platform, since:
It offers an alternative way you don't have to write the full-fledged programme.
It lets one or more applications interact.
It builds software, and links cloud providers to other systems.
CaaS is a word used as the Communication As a Service in the telecom industry. CaaS offers user tools including desktop call management, unified communications and desktop faxing for the enterprise.
VPN stands for Private Virtual Network. VPN is a private cloud which manages data security in the cloud environment when interacting. You may build a public network with VPN as a private network.
There are three basic clouds in cloud computing:
Private clouds are used to protect the strategic operations and other purposes. It is a complete, fully functional platform that can be owned, operated and restricted to just an organisation or industry. Most organisations have moved to private clouds now a day because of security concerns. A virtual private server running by a hosting firm is being used.
The application service is authorised by cloud computing, so it is used in identity management.
It gives the users permissions to control the access of another user who enters the cloud environment.
There are three core services provided by Window azure operating system:
The primary use of the virtualization platform for cloud deployment is:
The databases for the open source cloud computing platform are as follows:
A major layer in cloud computing is Software As a Service (SaaS). It provides applications in the cloud much as Google does. It allows users to save and even build their document on the cloud.
The major cloud services and applications commonly used are as follows:
This is the most obvious issue, provided that the cloud data is secure; to ensure that no data leakage happens with the encryption key applied for the data you send as the data moves from point A to point B in the cloud.