Cloud Computing and Distributed Systems Week 5 NPTEL Assignment Answers 2025

NPTEL Cloud Computing and Distributed Systems Week 5 Assignment Answers 2024

1. Which of the following is an example of IaaS?

a. Google App Engine
b. Google Docs
c. Gmail
d. Eucalyptus

✅ Answer: d. Eucalyptus
Explanation:
Eucalyptus is an open-source Infrastructure as a Service (IaaS) platform that enables users to build private and hybrid clouds. It provides virtual machines, storage, and network capabilities.

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2. ______ computing is a model where the service provider makes computing resources available to the customer as needed.

a. Ubiquitous
b. Utility
c. Online
d. Virtual

✅ Answer: b. Utility
Explanation:
Utility computing refers to on-demand access to computing resources like electricity or water — pay only for what you use. It underpins the cloud computing model.

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3. In live migration, a running virtual machine or application can be moved between different physical machines ______.

a. by disconnecting the client or application
b. without disconnecting the client or application
c. by moving application data to the cloud
d. without updating the client or application

✅ Answer: b. without disconnecting the client or application
Explanation:
Live migration allows VM movement without downtime, meaning users stay connected while resources shift in the background.

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4. True or False? Cloud computing is a distributed computing model.

a. True
b. False

✅ Answer: a. True
Explanation:
Cloud computing distributes resources and services across multiple systems and locations, making it a form of distributed computing.

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5. Gilder’s law indicates that network bandwidth has ____ each year in the past.

a. doubled
b. tripled
c. remained unchanged
d. changed unpredictably

✅ Answer: b. tripled
Explanation:
Gilder’s Law states that bandwidth (data transfer rate) increases threefold annually, which has fueled internet and cloud growth.

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6. The goals of a hypervisor are:

a. Fidelity
b. Performance
c. Safety & isolation
d. Low Latency

✅ Answer: b, d
Explanation:
Hypervisors aim for high performance (efficient execution of VMs) and low latency (quick response time). Fidelity is more about media quality, not virtualization.

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7. Infrastructure as a Service (IaaS) delivery model is an example of a cloud computing environment that provides users access to ______

a. Physical Machines
b. Virtual Machines
c. Storage Space
d. Virtual Memory

✅ Answer: b. Virtual Machines
Explanation:
IaaS provides users with virtual machines, enabling them to install and manage their own software on rented infrastructure.

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8. The figure depicts a Bare-Metal Hypervisor. The statement is:

a. True
b. False

✅ Answer: a. True
Explanation:
A bare-metal hypervisor runs directly on the hardware (without a host OS) and is used in enterprise virtualization environments like VMware ESXi.

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9. In Sandpiper architecture, the Nucleus is responsible for:

a. Monitoring Resources
b. Allocating Resources
c. Migrating Resources
d. Detecting hotspots

✅ Answer: a. Monitoring Resources
Explanation:
In Sandpiper (a VM migration system), the Nucleus handles resource monitoring to identify overuse and make migration decisions.

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10. Microsoft’s Hyper-V uses full virtualization, the statement is

a. True
b. False

✅ Answer: a. True
Explanation:
Microsoft Hyper-V uses full virtualization, where the guest OS doesn’t need modifications and is unaware that it’s running in a virtualized environment.