NPTEL Cloud Computing Week 3 Assignment Answers 2025
1. Which of the following is/are NOT SLA requirements) of PaaS cloud delivery model?
a. Privacy
b. Data Retention and Deletion
c. Machine-Readable SLAs
d. Certification
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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 o J|D(t)/R(t)|dt
b. If demand is flat, penalty is equal to O.
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 :-
3. Row-oriented storage is efficient for data-warehouse workloads.
a. TRUE
b. FALSE
Answer :-
4. Which of the following is/are example(s) of cloud SLA(s) with laas delivery model?
a. Amazon EC2
b. Google App Engine
c. Salesforce CRM
d. Zoho mail
Answer :-
5. Which of the following OpenStack components is used for block storage services?
a. Keystone
b. Cinder
c. Swift
d. Neutron
Answer :-
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
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7. In Google File System (GFS), the master maintains regular communication with the chunk servers.
a. TRUE
b. FALSE
Answer :-
8. What is/ are the expected SLA parameters for Software-as-a-Service (SaaS):
(a) Reliability
(b) usability
(c) Cache Memory size
(d) Customizability
Answer :-
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 Indicator (KPI)|
d. Key Performance Indicators (KPIs) are aggregated to Service Level Objectives(SLO)
Answer :-
10. Statement 1: In OpenStack block storage, the stored objects persist until the VM is terminate
Statement 2: In OpenStack ephemeral storage, the stored objects are accessible from within VI
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
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