Cloud Computing Week 2 NPTEL Assignment Answers 2025

NPTEL Cloud Computing Week 2 Assignment Answers 2025

1. ___________ generally stores the cloud subscriber’s metadata like user credentials and OS images

a) SLA (Service Level Agreement)
b) Cloud Manager
c) DOS (Data Object storage)
d) MOS (Metadata Object storage)
Answer: c) DOS (Data Object storage)
Explanation: DOS is used to store actual data including metadata like user credentials, OS images, etc. It’s a scalable and flexible storage system.

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2. Universal Description, Discovery, and Integration (UDDI) represents a format for data exchange, designed to hold and convey data objects that are made up of pairs of attributes and values.

a) True
b) False
Answer: a) True
Explanation: UDDI is an XML-based standard for describing, discovering, and integrating web services, where data is stored in attribute-value pairs.

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3. Which factors should an organization consider while planning to deploy an outsourced private cloud?

a) Only Network Dependency
b) Only Risks from multi-tenancy
c) Both Network Dependency and Risks from multi-tenancy
d) Neither Network Dependency nor Risks from multi-tenancy
Answer: c) Both Network Dependency and Risks from multi-tenancy
Explanation: Outsourcing a private cloud still depends on network stability and may face security challenges due to multi-tenancy in shared infrastructure.

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4. What is/are the main difference(s) between virtualization and dual boot?

a) In virtualization, both operating systems run simultaneously, but not in dual boot.
b) In virtualization, operating systems are not isolated from each other, but not in dual boot.
c) In a dual boot, both operating systems run simultaneously, but not in virtualization.
d) No difference between dual boot and virtualization.
Answer: a) In virtualization, both operating systems run simultaneously, but not in dual boot.
Explanation: Virtualization allows multiple OSs to run concurrently using hypervisors, while dual boot requires rebooting to switch OSs.

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5. Web services enhance distributed interoperability through the use of open standards, enabling any two software components to communicate and are designed to address firewall issues.

a) True
b) False
Answer: a) True
Explanation: Web services use standards like HTTP, XML, and SOAP to allow communication across different systems and networks.

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6. Ubuntu Enterprise Cloud (UEC) is an example of

a) Public cloud
b) Hybrid cloud
c) Private cloud
d) Community Cloud
Answer: c) Private cloud
Explanation: UEC is designed to build private clouds using open-source technologies for enterprises.

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7. Cloud Manager is the public access point to the cloud where subscribers _____________ up for accounts and has a mechanism for ___________ subscribers.

a) sign, integrating
b) sign, authenticating
c) sign, accessing
d) access, authenticating
Answer: b) sign, authenticating
Explanation: Cloud Manager handles user registration (sign up) and authentication to provide secure access.

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8. Hypervisor is also known as

a) Cluster Manager
b) Virtual Machine Handler
c) Virtual Machine Manager
d) Virtual Machine Monitor
Answer: d) Virtual Machine Monitor
Explanation: A hypervisor, also called VMM, allows multiple virtual machines to share the same hardware.

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9. Simple Object Access Protocol (SOAP) provides a way to communicate between applications running on different operating systems, with the same technologies and programming languages.

a) True
b) False
Answer: b) False
Explanation: SOAP enables communication across different OS and platforms, not necessarily using the same technologies and languages.

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10. While DOM operates on the documents as a whole, _______________ parsers operate on each piece of the XML document sequentially.

a) FTP
b) MQTT
c) SAX
d) XAS
Answer: c) SAX
Explanation: SAX (Simple API for XML) parses XML sequentially, using less memory compared to DOM which loads the entire document.