Introduction Cloud computing is revolutionizing the IT industry, and the NPTEL Cloud Computing course provides an in-depth understanding o...
Introduction
Cloud computing is revolutionizing the IT industry, and the NPTEL Cloud Computing course provides an in-depth understanding of this technology. The course is structured to equip learners with the knowledge and skills required to thrive in the field of cloud computing. Week 1 assignments play a crucial role in setting the foundation for this journey. Let's dive into the details of Week 1 content and the answers to the assignments.
Week 1 Content Summary
Introduction to Cloud Computing
The first week introduces the basics of cloud computing, including its definition, essential characteristics, service models (IaaS, PaaS, SaaS), and deployment models (public, private, hybrid, and community clouds). Understanding these fundamentals is key to grasping more complex topics later in the course.
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Key Concepts Covered
During Week 1, learners explore:
- The evolution of cloud computing.
- Benefits and challenges associated with cloud adoption.
- Various cloud service providers and their offerings.
- Real-world applications of cloud computing.
Detailed Answers to Week 1 Assignment
Which of the following falls under the "essential characteristics" of cloud computing?
- A) Resource Pooling
- B) Measured Service
- C) Rapid Elasticity
- D) Latency
Answer: A) Resource Pooling B) Measured Service C) Rapid Elasticity
Explanation: The essential characteristics of cloud computing include on-demand self-service, broad network access, resource pooling, rapid elasticity, and measured service. Latency is not considered an essential characteristic but a performance metric.
Question 2
"Google Doc" is an example of:
- A) PaaS
- B) IaaS
- C) SaaS
- D) FaaS
Answer: C) SaaS
Explanation: Google Docs is a software as a service (SaaS) application, where users can access software over the internet without managing the underlying infrastructure.
Question 3
Business-Process-as-a-Service is not a part of XaaS.
- A) True
- B) False
Answer: B) False
Explanation: XaaS (Anything as a Service) includes a variety of services delivered over the internet, including Business-Process-as-a-Service (BPaaS).
Question 4
Network Function Virtualization involves the implementation of _____ function in software that can run on a range of industry-standard servers:
- A) network, software
- B) hardware, software
- C) hardware, network
- D) network, hardware
Answer: A) network, software
Explanation: Network Function Virtualization (NFV) involves implementing network functions in software, which can run on standard server hardware.
Question 5
Which are the following applications for SaaS (Software as a Service) architecture?
- A) Billing software
- B) CRM
- C) App engines
- D) None of above
Answer: A) Billing software B) CRM
Explanation: Billing software and CRM (Customer Relationship Management) systems are typical applications provided through a SaaS architecture. App engines fall under PaaS (Platform as a Service).
Question 6
Web access to commercial software is one of the SaaS characteristics in the cloud computing paradigm.
- A) True
- B) False
Answer: A) True
Explanation: One of the characteristics of SaaS is that it is delivered over the internet, allowing access to commercial software via a web browser.
Question 7
In the case of the client-server model: Statement (I) Virtualization is a core concept. Statement (II) system can scale infinitely
- A) Only Statement (I) is correct
- B) Only Statement (II) is correct
- C) Both Statements (I) and (II) are correct
- D) None of the statements is correct
Answer: A) Only Statement (I) is correct
Explanation: Virtualization is a core concept in the client-server model, but the system does not inherently scale infinitely.
Question 8
Client-server model is always load-balanced
- A) True
- B) False
Answer: B) False
Explanation: The client-server model is not always load-balanced. Load balancing is an additional configuration to distribute workloads evenly across servers.
Question 9
PaaS (Platform as a Service) brings the benefits: (i) Creation of software (ii) Integration of web services and databases
- A) Only (i)
- B) Only (ii)
- C) Both (i) and (ii)
- D) Neither (i) nor (ii)
Answer: C) Both (i) and (ii)
Explanation: PaaS provides a platform allowing customers to develop, run, and manage applications without dealing with the infrastructure, thus aiding in the creation of software and integration of web services and databases.
Question 10
Which of the following is false?
- A) Private cloud is dedicated solely to an organization.
- B) Community cloud is a composition of public and private cloud.
- C) Public cloud is available to the general public.
- D) None of these
Answer: B) Community cloud is a composition of public and private cloud.
Explanation: A community cloud is a collaborative effort where infrastructure is shared between several organizations from a specific community with common concerns, not a mix of public and private cloud.
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