NPTEL Cloud Computing Week 8 Assignment Answers 2024
1. Docker compose is a tool for defining and running multi-container Docker applications.
a) True
b) False
Answer: a
Explanation: Docker Compose simplifies the process of running multi-container applications by allowing users to define services, networks, and volumes in a YAML file.
2. Choose the most appropriate option.
Statement 1: An image is a lightweight, stand-alone, executable package that includes everything to run a piece of software.
Statement 2: Container is a runtime instance of an image.
a) Statement 1 is correct but Statement 2 is incorrect
b) Statement 2 is correct but Statement 1 is incorrect
c) Both the statements are correct
d) Both the statements are incorrect
Answer: c
Explanation: A Docker image contains everything needed to run a program. When you run an image, it becomes a container.
3. Vehicles providing their networking and data processing capabilities to other vehicles through the cloud comes under which service of IoT-based Vehicular Data Clouds.
a) SaaS
b) PaaS
c) IaaS
d) None of these
Answer: c
Explanation: IaaS (Infrastructure as a Service) refers to providing fundamental computing resources such as processing, storage, and networking capabilities via cloud to other vehicles.
4. An IoT platform’s basic building blocks is/are (choose the correct option(s)).
a) Gateway
b) Images
c) Network and Cloud
d) Containers
Answer: a, c
Explanation: Gateways connect devices to the internet, and network & cloud services are essential for data processing and storage in an IoT platform.
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5. In the context of Green Cloud Computing, the Power Usage Effectiveness is defined as
a) Power Delivered / Overall Power
b) Overall Power / Power Delivered
c) Overall Power * Power Delivered
d) None of these
Answer: b
Explanation: Power Usage Effectiveness (PUE) is a metric used to determine the energy efficiency of a data center. It is calculated as Total Facility Energy divided by IT Equipment Energy.
6. Statement 1: Sensor-Cloud proxy exposes sensor resources as cloud services.
Statement 2: Sensor network is still managed from the Sensor-Cloud Interface via Sensor Network Proxy
a) Statement 1 is True and Statement 2 is False
b) Statement 2 is True and Statement 1 is False
c) Both statements are True
d) Both statements are False
Answer: c
Explanation: Both statements correctly describe how Sensor-Cloud architecture works to virtualize and manage sensor networks via cloud interfaces.
7. Which of the following statements is/are true about Docker?
Statement 1: Docker hub is used for building docker images and creating docker containers.
Statement 2: Docker compose is a registry used to host various docker images.
a) Statement 1 is correct but Statement 2 is incorrect
b) Statement 2 is correct but Statement 1 is incorrect
c) Both the statements are correct
d) Both the statements are incorrect
Answer: d
Explanation: Docker Hub is a repository for hosting images, not for building or running containers. Docker Compose is a tool for defining multi-container applications, not a registry.
8. Sensor data can be easily shared by different groups of users without any extra effort/ measure.
a) True
b) False
Answer: b
Explanation: Sharing sensor data securely requires authentication, access control, and data formatting measures. It cannot be done effortlessly without protocols.
9. __________ get virtual access to host resources through a hypervisor.
a) Containers
b) Virtual machines
c) Both a and b
d) Images
Answer: b
Explanation: Virtual machines use hypervisors to get access to underlying physical hardware, while containers share the host OS kernel.
10. ___________ enables different networks, spread in a huge geographical area, to connect together and be employed simultaneously by multiple users on demand.
a) Serverless
b) IoT Cloud
c) Sensor Cloud
d) Green Cloud
Answer: c
Explanation: Sensor Cloud technology allows integration of geographically dispersed sensor networks and enables on-demand access to sensor data via the cloud.
