1. BCA 413: Cloud Computing UNIT I Introduction: Cloud-definition, benefits, usage scenarios, History of Cloud Computing, Cloud Architecture, Types of Clouds, Business models around Clouds, Major Players in Cloud Computing, issues in Clouds, Eucalyptus, Nimbus, Open Nebula, Cloud Sim. UNIT II Cloud Services: Types of Cloud services, Software as a Service, Platform as a Service, Infrastructure as a Service, Database as a Service, Monitoring as a Service, Communication as services. Service providers- Google, Amazon, Microsoft Azure, IBM, Sales force. UNIT III Collaborating Using Cloud Services Email Communication over the Cloud, CRM Management, Project Management, Event Management, Task Management, Calendar, Schedules, Word Processing, Presentation, Spreadsheet, Databases, Desktop, Social Networks and Groupware. UNIT IV Virtualization for Cloud Need for Virtualization, Pros and cons of Virtualization, Types of Virtualization, System VM, Process VM, Virtual Machine monitor, Virtual machine properties, Interpretation and binary translation, HLL VM, Hypervisors, Xen, KVM, VMWare, Virtual Box, Hyper-V. UNIT V Security, Standards and Applications Security in Clouds: Cloud security challenges, Software as a Service Security, Common Standards: The Open Cloud Consortium, The Distributed management Task Force, Standards for application Developers, Standards for Messaging, Standards for Security, End user access to cloud computing, Mobile Internet devices and the cloud.

2. What is Cloud Computing Simply put, cloud computing is the delivery of computing services—including servers, storage, databases, networking, software, analytics, and intelligence—over the Internet (“the cloud”) to offer faster innovation, flexible resources, and economies of scale. You typically pay only for cloud services you use, helping you lower your operating costs, run your infrastructure more efficiently, and scale as your business needs change. Microsoft Cloud computing is the on-demand delivery of IT resources over the Internet with pay- as-you-go pricing. Instead of buying, owning, and maintaining physical data centers and servers, you can access technology services, such as computing power, storage, and databases, on an as-needed basis from a cloud provider like Amazon Web Services (AWS). Amazon Understanding the types of cloud computing resources can be time-consuming and costly. Enterprises need to buy physical servers and other infrastructure through procurement processes that can take months, and support the architecture of cloud computing. The acquired systems require a physical space, typically a specialized room with sufficient power and cooling. After configuring and deploying the systems, enterprises need expert personnel to manage them. This long process is difficult to scale when demand spikes or business expands. Enterprises can acquire more computing resources than needed, ending up with low utilization numbers. Cloud computing addresses these issues by offering computing resources as scalable, on- demand services. Google

4. Benefits of Cloud Computing Lower Costs It is expensive to establish and run in-house computing infrastructure. Purchasing and maintaining equipment and hiring trained IT experts come at a cost. By switching to cloud computing, businesses only need to pay for the services they procure. This results in significant cost savings. Mobility Cloud-based technology offers mobility, ensuring workers can access resources in the cloud in real-time from any location or device. You can run from any location, any device any cloud service like Gmail. Scalability Businesses using cloud computing can scale up or down their IT features based on business requirements. We can size up the data, daily like YouTube or in Bank Applications Disaster Recovery There’s no need for a disaster recovery data backup plan in cloud systems. There’s no permanent data loss in case of a disaster. Backup of data is too easy. Data Security Cloud computing offers many advanced data security features to guarantee data safety and security. Most of cloud service are using best security solutions like AWS. Wide Range of Options There are various types, models, and services of cloud platforms available suited to the different needs of enterprises. We can offer any type of software solution on Cloud.

5. Community Cloud Types of Cloud and cloud services

6. Public cloud The Public clouds are said to be owned and operated by the third-party cloud service providers Like AWS, who deliver their computing resources such as servers and storage on the Internet. Microsoft Azure is one such example of a public cloud. On a public cloud, all of the hardware, the software and the other supporting infrastructure is managed and owned by the cloud providers themselves. One has to access these services and manage one’s account by using a web browser. Private cloud The private cloud refers to the cloud computing resources that are used exclusively by only a single business or organization. The private cloud may be physically located in the company’s on-site datacenter. Some of the organizations even pay the third-party service providers for hosting their private cloud. The private cloud is said to be the one where the services and the infrastructure are maintained over a private network.

7. Hybrid cloud The Hybrid clouds combine the public cloud and the private clouds, bound together with the help of technology which allows the data and the applications to be shared amongst them. By allowing the data and applications to transfer between the private and the public clouds, a hybrid cloud provides the business with greater flexibility, better deployment options and helps optimize the existing security, infrastructure, and compliance. Community Cloud Community cloud is a cloud infrastructure that allows systems and services to be accessible by a group of several organizations to share the information. It is owned, managed, and operated by one or more organizations in the community, a third party, or a combination of them.

11. Amazon, Google and Microsoft Cloud Services

12. Platform Type Common Examples SaaSGoogle Workspace, Dropbox, Salesforce, Cisco WebEx, Concur, GoToMeeting PaaS AWS Elastic Beanstalk, Windows Azure, Heroku, Force.com, Google App Engine, Apache Stratos, OpenShift IaaS DigitalOcean, Linode, Rackspace, Amazon Web Services (AWS), Cisco Metapod, Microsoft Azure, Google Compute Engine (GCE)

13. Cloud Computing Architecture Cloud Computing Architecture is a mixture of Service Oriented Architecture (SOA) and Event-Driven Architecture (EDA). The modules of Cloud Computing Architecture are mentioned below and they are as follows: 1. Client Infrastructure 2. Application Service 3. Runtime 4. Storage 5. Infrastructure 6. Management 7. Security The Cloud Computing Architecture is categorized into two main aspects such as: Front End Back End

14. SaaS Front End users

15. Cloud computing architecture is divided into the following two parts - Front End Back End There are the following components of cloud computing architecture - 1. Client Infrastructure Client Infrastructure is a Front end component. It provides GUI (Graphical User Interface) to interact with the cloud. 2. Application The application may be any software or platform that a client wants to access. 3. Service A Cloud Services manages that which type of service you access according to the client’s requirement. Cloud computing offers the following three type of services: Software as a Service (SaaS) – It is also known as cloud application services. Mostly, SaaS applications run directly through the web browser means we do not require to download and install these applications. Some important example of SaaS is given below – Example: Google Apps, Salesforce Dropbox, Slack, Hubspot, Cisco WebEx. Platform as a Service (PaaS) – It is also known as cloud platform services. It is quite similar to SaaS, but the difference is that PaaS provides a platform for software creation, but using SaaS, we can access software over the internet without the need of any platform. Example: Windows Azure, Force.com, Magento Commerce Cloud, OpenShift. Infrastructure as a Service (IaaS) – It is also known as cloud infrastructure services. It is responsible for managing applications data, middleware, and runtime environments. Example: Amazon Web Services (AWS) EC2, Google Compute Engine (GCE), Cisco Metapod.

16. 4. Runtime Cloud Runtime Cloud provides the execution and runtime environment to the virtual machines. 5. Storage Storage is one of the most important components of cloud computing. It provides a huge amount of storage capacity in the cloud to store and manage data. 6. Infrastructure It provides services on the host level, application level, and network level. Cloud infrastructure includes hardware and software components such as servers, storage, network devices, virtualization software, and other storage resources that are needed to support the cloud computing model. 7. Management Management is used to manage components such as application, service, runtime cloud, storage, infrastructure, and other security issues in the backend and establish coordination between them. 8. Security Security is an in-built back end component of cloud computing. It implements a security mechanism in the back end. 9. Internet The Internet is medium through which front end and back end can interact and communicate with each other.

17. 1) What type of computing technology refers to services and applications that typically run on a distributed network through virtualized resources? 1.Distributed Computing 2.Cloud Computing 3.Soft Computing 4.Parallel Computing 2 ) Which one of the following options can be considered as the Cloud? 1.Hadoop 2.Intranet 3.Web Applications 4.All of the mentioned

18. Eucalyptus Elastic Utility Computing Architecture for Linking Your Programs To Useful Systems Eucalyptus is a Linux-based open-source software architecture for cloud computing and also a storage platform that implements Infrastructure a Service (IaaS). It provides quick and efficient computing services. Eucalyptus was designed to provide services compatible with Amazon’s EC2 cloud and Simple Storage Service(S3).