CS-802-B Cloud Computing - May 2023 Question Paper

Under each question, How to answer lists the points an answer should cover, outlined by CampusPrep from the syllabus. Check the details against your textbook.

1. 7 Marks
   aDefine Cloud Computing. Explain Characteristics of Cloud Computing.
   How to answer

   • Definition of Cloud Computing as on-demand network access to shared configurable resources
   • Essential characteristics: on-demand self-service, broad network access, resource pooling, rapid elasticity, measured service
   • Additional characteristics: multi-tenancy, virtualization, scalability and availability
2. 7 Marks
   bWhat are the Elements of UDDI explain in detail?
   How to answer

   • Definition and purpose of UDDI in web services discovery
   • Elements: White pages, Yellow pages, Green pages
   • UDDI data structures: businessEntity, businessService, bindingTemplate, tModel
   • UDDI registry operation and inquiry/publish APIs
3. 7 Marks
   aDiscuss different types of Hypervisors with examples.
   How to answer

   • Definition of hypervisor / VMM
   • Type-1 bare-metal hypervisors with examples e.g. VMware ESXi, Hyper-V, Xen
   • Type-2 hosted hypervisors with examples e.g. VirtualBox, VMware Workstation
   • Comparison of architecture, performance and use cases
4. 7 Marks
   bExplain the risk from Multi-tenancy with respect to various cloud Environment.
   How to answer

   • Meaning of multi-tenancy in SaaS/PaaS/IaaS
   • Risks: data isolation failure, noisy neighbour, side-channel attacks
   • Differences across public, private, hybrid cloud environments
   • Mitigations: isolation, encryption, SLA and access control
5. 7 Marks
   aDiscuss in detail cloud Mashups with User interface.
   How to answer

   • Definition of cloud mashup combining multiple services/APIs
   • Role of user interface in mashups: widgets, portals, Ajax
   • Types and architecture layers of mashups
   • Example workflow and benefits/challenges
6. 7 Marks
   bWhat are the services provided by Virtualization explain in detail?
   How to answer

   • Concept of virtualization as abstraction of resources
   • Services: server, storage, network, desktop, application virtualization
   • Resource pooling, isolation and provisioning benefits
   • Examples of services provided to cloud users
7. 7 Marks
   aWrite a brief note on Enterprise batch Processing.
   How to answer

   • Definition of enterprise batch processing
   • Characteristics: bulk jobs, scheduling, no user interaction
   • Architecture and tools in cloud context
   • Use cases and advantages
8. 7 Marks
   bTake a suitable example and the concept of Map Reduce.
   How to answer

   • Concept of MapReduce: Map and Reduce phases
   • Suitable example e.g. word count
   • Steps: splitting, mapping, shuffling, reducing
   • Diagram of data flow and fault tolerance
9. 7 Marks
   aEnlist and Explain the features of HDFS.
   How to answer

   • HDFS as distributed file system for Hadoop
   • Features: NameNode/DataNode architecture, block storage, replication
   • Fault tolerance, scalability, high throughput
   • Write-once-read-many and data locality
10. 7 Marks
    bWhat are the different Security Challenges in Cloud computing? Discuss in brief.
    How to answer

    • Categories: data breach, loss, account hijacking, insecure APIs, insider threats
    • Multi-tenancy, compliance and availability challenges
    • Brief discussion of each challenge
    • Impact on confidentiality, integrity and availability
11. 7 Marks
    aExplain Security Reference Architecture of Cloud with a neat Diagram.
    How to answer

    • Layers of security reference architecture: infrastructure, platform, application, data
    • Security management, identity and access management components
    • Neat labelled diagram showing controls and interfaces
    • Explanation of data and network security functions
12. 7 Marks
    bWhat do you understand by Secure Communication in Cloud? How it is achieved?
    How to answer

    • Definition of secure communication: confidentiality, integrity, authentication
    • Mechanisms: SSL/TLS, VPN, IPSec, encryption and key management
    • Identity management and access control steps
    • How secure channels are established in cloud
13. 7 Marks
    aWhat is the Purpose of Mobile Cloud Computing? Explain its features.
    How to answer

    • Purpose: extend cloud to mobile devices with limited resources
    • Features: elasticity, offloading computation/storage, context awareness
    • Benefits: longer battery, improved performance, ubiquitous access
    • Architecture components and challenges
14. 7 Marks
    bWhy is QOS important? List out the issues of QOS and explain.
    How to answer

    • Definition and importance of QoS for SLA and user satisfaction
    • QoS parameters: latency, bandwidth, availability, reliability
    • Issues: performance variability, provisioning, monitoring
    • Explanation of each issue with mitigation
15. 14 Marks
    Write a short note on any two:

    1. i)WSDL
    2. ii)Ajax
    3. iii)Cloud middle ware
    4. iv)Sky computing
    How to answer

    • Select any two topics from the four options
    • For each: definition, purpose/architecture and key components
    • Relevant example or use case in cloud
    • Advantages/limitations summary