NPTEL Cloud Computing Week 3 Assignment Answers July 2023

NPTEL Cloud Computing Week 3 Assignment Answers 2023:- All the Answers are provided here to help the students as a reference, You must submit your assignment at your own knowledge.

NPTEL Cloud Computing Week 3 Assignment Answers 2023

1. In the context of aggregated demand in resource provisioning in the cloud, how does adding n independent demands affect the coefficient of variation (C)?

  • A) Increases the Cv
  • B) Decreases the Cv
  • C) Does not change the Ex
  • D) Inversely proportional to the mean
Answer:- b

2. What does the term “biasness towards vendors” imply in the context of SLA monitoring?

A) Vendor-driven selection of monitoring parameters
B) Customer-driven selection of monitoring parameters
C) Balanced approach in monitoring parameters
D) Lack of active monitoring on the customer’s side

Answer:- a

3. In the Openstack storage concept ______ storage persists until the VM is terminated and is managed by _________

A) Nova, Cinder
B) Ephemeral, Cinder
C) Cinder, Ephemeral
D) Ephemeral, Nova

Answer:-

4. What condition makes periodic provisioning acceptable in the presence of linear demand?

A) High resource utilization
B) Non-linear demand
C) Instantaneous demand
D) Flat demand

Answer:-

5. What is (are) the key factor(s) to consider in a hybrid model for utility pricing?

A) Reliability and accessibility
B) Network cost and usage costs
C) Peak to average demand ratio
D) Interoperability overhead

Answer:-For Answer Click Here

6. What architecture is used in a parallel database for the efficient execution of SQL queries?

A) Shared memory architecture
B) Shared disk architecture
C) Shared nothing architecture
D) Shared cache architecture

Answer:-

7. What type of environment benefits from utility pricing?

A) Environments with fixed demand levels
B) Environments with limited resource scalability
C) Environments with variable demand levels
D) Environments with prepaid resource allocation

Answer:-

8. What is the role of Neutron in the provisioning flow in Open Stack?

A) Fetches information about the whole cluster from the database
B) Publishes a message to the compute queue to trigger VM provisioning
C) Configures IP, gateway, DNS name, and L2 connectivity.
D) Contacts Cinder to get volume data

Answer:-

9. How does the master node in the Google File System maintain communication with chunk servers?

A) Command messages
B) Update messages
C) Query messages
D) Heartbeat messages

Answer:-

10. What does the ‘availability’ metric represent in the monitoring and auditing of SLAs?

A) The speed at which a service responds
B) The percentage of uptime for a service
C) How often the service is available
D) The ability for a resource to grow infinitely

Answer:- For Answer Click Here

NPTEL Cloud Computing Week 3 Assignment Answers 2022 [July-Dec]

1. Which of the following is/are NOT SLA requirement(s) of PaaS cloud delivery model?

a. Privacy
b. Data Retention and Deletion
c. Machine-Readable SLAs
d. Certification

Answer:- c

2. Which of the following is/are true regarding penalty cost? (Here D(t) and R(t) are instantaneous demand and resources at time t.)

a. Penalty cost ox ID()/R()|dt
b. If demand is flat, penalty is equal to 0.
c. If demand is exponential (D(t)=e’), any fixed provisioning interval (tp) according to the current demands will fall linearly behind.
d. The penalty cost for exponential demand is exponential.

Answer:- b, d

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NPTEL Cloud Computing Week 3 Assignment Answers July 2023

3. Row-oriented storage is efficient for data-warehouse workloads.

a. TRUE
b. FALSE

Answer:- b

4. Which of the following is/are example(s) of cloud SLA(s) with IlaaS delivery model?

a. Amazon EC2
b. Google App Engine
c. Salesforce CRM
d. Zoho mail

Answer:- a

5. Which of the following OpenStack components is used for block storage services?

a. Keystone
b. Cinder
c. Swift
d. Neutron

Answer:- b

6. In cloud, service downtime is 30 minutes and availability of the service is 0.80. What is the service uptime?

(a) 120 minutes
(b) 60 minutes
(c) 150 minutes
(d) 135 minutes

Answer:- c

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NPTEL Cloud Computing Week 3 Assignment Answers July 2023

7. In Google File System (GFS), the master maintains regular communication with the chunk servers.

a. TRUE
b. FALSE

Answer:- a

8. In a system, 400 unit workloads have been added. What will be the penalty?

a. 40%
b. 100 %
c. 20%
d. 8000%

Answer:- c

9. Which of the following option(s) is/are correct?

a. Service Level Agreement(SLA) contains Service Level Objectives(SLO)
b. Service Level Objectives(SLO) contains Service Level Agreement(SLA)
c. Multiple Service Level Agreements (SLAs) are aggregated to Key Performance Indiocator (KPI)
d. Key Performance Indiocators (KPIs) are aggregated to Service Level Objectives(SLO)

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10. Statement 1: In OpenStack block storage, the stored objects persist until the VM is terminated.
Statement 2: In OpenStack ephemeral storage, the stored objects are accessible from within VM as local file system.

a. Both statement 1 and 2 are correct
b. Statement 1 is correct and statement 2 is incorrect
c. Statement 2 is correct and statement 1 is incorrect
d. Both statement 1 and 2 are incorrect

Answer:- c

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What is Cloud Computing?

Cloud computing is a scalable services consumption and delivery platform that provides on-demand computing service for a shared pool of resources, namely servers, storage, networking, software, database, applications, etc, over the internet is a model for enabling ubiquitous, on-demand access to a shared pool of configurable computing resources, which can be rapidly provisioned and released with minimal management effort. This course will introduce various aspects of cloud computing, including fundamentals, management issues, security challenges, and future research trends. This will help students (both UG and PG levels) and researchers to use and explore the cloud computing platforms.

CRITERIA TO GET A CERTIFICATE

Average assignment score = 25% of the average of best 8 assignments out of the total 12 assignments given in the course.
Exam score = 75% of the proctored certification exam score out of 100

Final score = Average assignment score + Exam score

YOU WILL BE ELIGIBLE FOR A CERTIFICATE ONLY IF THE AVERAGE ASSIGNMENT SCORE >=10/25 AND EXAM SCORE >= 30/75. If one of the 2 criteria is not met, you will not get the certificate even if the Final score >= 40/100.

NPTEL Cloud Computing Week 3 Assignment Answers 2022 [Jan 2022]

Q1. Which of the following is false about SLA contents 

a) A complete, specific definition of each service 
b) An auditing mechanism to monitor the services 
c) The responsibilities of the service provider and consumer 
d) None of these

Answer:- d) None of these

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NPTEL Cloud Computing Week 3 Assignment Answers July 2023

Q2. In cloud, computing resources are allocated 

a) Through a centralized service discovering agent 
b) By service level agreement 
c) Globally without any centralized agent 
d) All of them

Answer:- c) Globally without any centralized agent 

Q3. Which of the following is correct about Availability? 

a) Availability = 1- (UpTime / TotalTime) 
b) Availability = 1+ (DownTime / UpTime) 
c) Availability = 1+ (UpTime / DownTime) 
d) Availability = 1- (DownTime / UpTime)

Answer:- d) Availability = 1- (DownTime / UpTime)

Q4. Statement 1: Coefficient of variance represents the ratio of standard deviation to mean.
Statement 2: Coefficient of variance is a useful statistic for comparing the degree of uniformity from one data series to another. 

a) Only statement 1 is true 
b) Only statement 2 is true 
c) Both the statements are true 
d) Both the statements are False

Answer:- c) Both the statements are true 

Q5. Say a cloud service is well maintaining it’s 95% availability as mentioned in Service Level Agreement. However, still the services are not performing as expected when the load increases abruptly. The problem can be referred to as an issue of 

a) Load balancing 
b) Linearity 
c) Reliability 
d) Durability

Answer:- c) Reliability 

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NPTEL Cloud Computing Week 3 Assignment Answers July 2023

Q6. Which of the following is true about penalty, where D(t) is instantaneous demand at time t and R(t) is response at time t? 

a) Penalty ∝ ∫ | R(t) * D(t) | dt 
b) Penalty ∝ ∫ | D(t) + R(t) | dt 
c) Penalty ∝ ∫ | D(t) – R(t) | dt 
d) None of these

Answer:- c) Penalty ∝ ∫ | D(t) – R(t) | dt 

Q7. It is absolutely beneficial to purchase a cloud service when 

a) Utility premium < the peak to average demand ratio 
b) Utility premium > the peak to average demand ratio 
c) Utility premium <= the peak to average demand ratio 
d) Utility premium >= the peak to average demand ratio

Answer:- a) Utility premium < the peak to average demand ratio 

Q8. If Rt is the ratio of execution time taken by a process in sequential and parallel architecture, and p is the number of parallel computing nodes available, then the parallel efficiency is

a) Rt/p
b) p / Rt
c) None of the above
d) px Rt

Answer:- a) Rt/p

Q9. Statement 1: Hadoop Distributed File System is an open source implementation of GFS architecture.
Statement 2: In Google File System, the master maintains regular communication with the chunk servers. 

a) Only statement 1 is true 
b) Only statement 2 is true 
c) Both the statements are true 
d) Both the statements are false

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Q10. Which of the following is true? 

a) IaaS can be built on PaaS 
b) PaaS can be built on SaaS 
c) IaaS can be built on SaaS 
d) None of the above

Answer:- d) None of the above

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NPTEL Cloud Computing Week 3 Assignment Answers July 2023

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NPTEL Cloud Computing Week 3 Assignment Answers 2022:- All the Answers provided here to help the students as a reference, You must submit your assignment at your own knowledge.