Cloud
Computing Interview Questions
There is
given Cloud Computing interview questions and answers that has been asked in
many companies. Let's see the list of top Cloud Computing interview questions.
1) What is cloud computing?
Cloud
computing is an internet based new age computer technology. It is the next
stage technology that uses the clouds to provide the services whenever and
wherever the user need it.It provides a method to access several servers world
wide.
2) What are the benefits of cloud computing?
The main
benefits of cloud computing are:
- Data backup and storage of data.
- Powerful server capabilities.
- Incremented productivity.
- Very cost effective and time
saving.
- Software as Service known as SaaS.
3) What is a cloud?
A cloud
is a combination of networks ,hardware, services, storage, and interfaces that
helps in delivering computing as a service. It has three users :
- End users
- Business management users
- cloud service provider
4) What are the different data types used in
cloud computing?
There are
different data types in cloud computing like emails, contracts, images , blogs
etc. As we know that data is increasing day by day so it is needed to new data
types to store these new data. For an example, if you want to store video then
you need a new data type.
5) What are the different layers in cloud
computing? Explain working of them.
There are
3 layers in the hierarchy of cloud computing.
Infrastructure
as a service (IaaS):It provides cloud infrastructure in terms of hardware as like
memory, processor, speed etc.
Platform
as a service (PaaS):It provides cloud application platform for the developer.
Software
as a service (SaaS)::It provides the cloud applications to users directly without
installing anything on the system. These applications remains on cloud.
6) What do you mean by software as a service?
Software
As a Service (SaaS) is an important layer of cloud computing. It provides cloud
applications like Google is doing. It facilitate users to save their document
on the cloud and create as well.
7) What is the platform as a service?
It is
also a layer in cloud architecture. This model is built on the infrastructure
model and provide resources like computers, storage and network. It is
responsible to provide complete virtualization of the infrastructure layer,
make it look like a single server and invisible for outside world.
8) What is on-demand functionality? How is it
provided in cloud computing?
Cloud
computing provides a on-demand access to the virtualized IT resources. It can
be used by the subscriber. It uses shared pool to provide configurable
resources. Shared pool contains networks, servers, storage, applications and
services.
9) What are the platforms used for large scale
cloud computing?
Apache
Hadoop and MapReduce are the platforms use for large scale cloud computing.
10) What are the different models for
deployment in cloud computing?
These are
the different deployment model in cloud computing:
Private
cloud
Public
cloud
Hybrid
cloud
Community
cloud
11) What is the difference between cloud
computing and mobile computing?
Mobile
computing and cloud computing are slightly same in concept. Mobile computing
uses the concept of cloud computing . Cloud computing provides users the data
which they required while in mobile computing, applications run on the remote
server and gives user the access for storage and manage.
12) What are the security benefits of cloud
computing?
Cloud
computing authorizes the application service, so it is used in identity
management.
It
provides permissions to the users so that they can control the access of
another user who is entering into the cloud environment.
13) What is "EUCALYPTUS" in cloud
computing? Why is it used?
. It is
an acronym stands for Elastic Utility Computing Architecture For Linking Your
Program To Useful Systems. It is an open source software infrastructure in
cloud computing and used to implement clusters in cloud computing platform. It
creates public, private and hybrid cloud. It facilitate a user to create his
own data center into a private cloud and use its functionalities to many other
organizations.
14) Explain System integrators in cloud
computing.
System
integrator provides a strategy of a complicated process used to design a cloud
platform. It creates more accurate hybrid and private cloud network because
integrator have all the knowledge about the data center creation.
15) What are the open source cloud computing
platform databases?
MongoDB,
CouchDB, LucidDB are the example of open source cloud computing platform
database.
16) Give some example of large cloud provider
and databases?
Google
bigtable
Amazon
simpleDB
Cloud
based SQL
17) What is the difference between cloud and
traditional datacenters?
The cost
of the traditional datacenter is higher than cloud because in traditional
databases, there is overheating problems and some software and hardware issue.
18) What are the different in Software as a
Service (SaaS)?
Simple
Multi-tenancy:In this mode, Every user has independent resources and are
uniquely different from other users. This is an efficient mode.
Fine
grain multi-tenancy:: In this mode, the resources can be shared by many users but the
functionality remains the same.
19) Why API's is used in cloud services?
API's
(Application Programming Interfaces) is used in cloud platform because:
It
provide an alternative way that you don't need to write the fully fledged
program.
It makes
communication between one or more applications.
It
creates applications and link the cloud services with other systems.
20) What are the different datacenters in
cloud computing?
1.
Containerized datacenter
2. Low
density datacenter
21) What do you mean by CaaS?
CaaS is a
terminology used in telecom industry as Communication As a Service. CaaS offers
the enterprise user features such as desktop call control, unified messaging
and desktop faxing.
22) What do you mean by VPN? What does it
contain?
VPN
stands for Virtual Private Network. VPN is a private cloud that manage the
security of the data during the communication in the cloud environment. With
VPN, you can make a public network as private network.
23) What are the basic clouds in cloud
computing?
There are
three basic clouds in cloud computing:
1.
Professional cloud
2.
Personal cloud
3.
Performance cloud
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