Cloud Computing (NPTEL) 2023

1. Question: Which of the following is a common property of distributed computing?

A) Centralized control

B) Fault tolerance

C) Single point of failure

D) Limited scalability

Answer: B (Fault tolerance)

2. Question: Peer-to-Peer computing resembles truly distributed applications.

A) True

B) False

Answer: A (True)

3. Question: Which of the following application(s) uses grid computing?

A) Reactor Applications

B) Air conditioning

C) Crystallography

D) Steganography

Answer: A (Reactor Applications), C (Crystallography)

4. Question: Which of the following is(are) a key component(s) of cluster computing?

A) Parallel programming environment

B) Single central processing unit

C) Symmetric Multiprocessing (SMP)

D) Node affinity

Answer: A (Parallel programming environment), C (Symmetric Multiprocessing - SMP)

5. Question: Utility computing is a _______________ model, in which a service provider makes computing resources and _____________ available to the customer.

A) service-provisioning, infrastructure management

B) infrastructure management, service-provisioning

C) cloud computing, resource management

D) service-provisioning, resource management

Answer: A (service-provisioning, infrastructure management)

6. Question: Utility computing encapsulates the following characteristic(s)

A) Mobility amalgamation

B) Pay-per-use pricing business model

C) No impact on resource utilization

D) None of above

Answer: B (Pay-per-use pricing business model)

7. Question: In utility computing, the payment model differs for different customers based on scale and payment frequency alone.

A) True

B) False

Answer: B (False)

8. Question: What are the different characteristic(s) of cloud computing?

A) Virtualization

B) Service disagreement

C) Service orientated

D) Scalability

Answer: A (Virtualization), C (Service orientated), D (Scalability)

9. Question: Google Spreadsheet is an example of :

A) Platform as a Service or PaaS

B) Software as a Service or SaaS

C) Function as a Service or FaaS

D) Infrastructure as a Service or IaaS

Answer: B (Software as a Service or SaaS)

10. Question: 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: D (None of the statements is correct)

1) Public cloud has and service level agreements (SLAs).

A) loosely coupled, default

B) restrictive, customized

C) customized, default

D) default, restrictive

Answer: D) default, restrictive

2) In the XML parser processing model, the parser should not stop processing even if the data is not well-formed.

A) True 

B) False

Answer: B) False

3) The on-site private cloud's network capacity restricts on-demand bulk data import or export.

A) True

B) False

Answer: A) True

4) Electronic Data Interchange (EDI) has .......... errors and ......... accuracy.

A) low, medium

B) medium, low

C) high, medium

D) low, high

Answer: D) low, high

5) Web services provide capabilities similar to EDI but are ............ expensive to implement.

A) more

B) less

C) not applicable

D) equal

Answer: B) less

6) In XML, a special 'xmlsn' attribute is used to define the namespace.

A) True 

B) False

Answer: B) False

7) Following is(are) example(s) private cloud

A) Amazon VPC

B) Eucalyptus

C) Microsoft Azure

D) Oracle Cloud

Answer: A) Amazon VPC, B) Eucalyptus

8) What is (are) goal(s) for a virtual machine architecture?

A) Equivalence

B) Resource control

C) Efficiency

D) None of these

Answer: A) Equivalence, B) Resource control, C) Efficiency

9) Within a cluster manager, .............. manager is connected via high-speed network.

A) grid

B) cloud

C) computer

D) Node

Answer: C) computer

10) Which statement(s) is (are) application to Data Object Storage (DOS)?

Statement: (i) DOS stores user credentials; Statement (ii) DOS is usually single for a cloud.

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: C) Both Statements (i) and (ii) are correct

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

A) Increases the Cv www

B) Decreases the Cv www

C) Does not change the Cv

D) Inversely proportional to the mean

Answer: D) default, restrictive

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) Vendor-driven selection of monitoring parameters

3) In the Openstack storage concept managed by storage persists until the VM is terminated and is

A) Nova, Cinder

B) Ephemeral, Cinder

C) Cinder, Ephemeral

D) Ephemeral, Nova

Answer: D) Ephemeral, Nova. 

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: D) Flat demand

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: C) Peak to average demand ratio

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: C) Shared nothing architecture

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: C) Environments with variable demand levels

8) What is the role of Neutron in the provisioning flow in OpenStack?

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: C) Configures IP, gateway, DNS name, and L2 connectivity.

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: D) Heartbeat messages

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: B) The percentage of uptime for a service.

1) In Microsoft Azure, a deployment user is required for FTP and local Git deployment to a web app. 

A) TRUE 

B) FALSE 

Answer: A) TRUE 

2) Azure Web Apps lack scalability. 

A) TRUE 

B) FALSE

Answer: B) False

3) Match the Google Cloud Platform services with their respective domain (compute, storage or app services).

Column I Column II

1. BigQuery I. Compute

2. App Engine II. App Services

3. Cloud SQL III. Storage

a. 1 II, 2⇒ III, 3⇒ I

b. 1⇒ II, 2⇒ I, 3⇒ III

c. 1III, 21, 3⇒ II

d. 11,2 III, 3⇒ II 

Answer: b. 1⇒ II, 2⇒ I, 3⇒ III

4)  Which of the following is/are App services provided by Google Cloud Platform?

A) Cloud Endpoints 

B) Google App Engine 

C) Cloud SQL

D) BigQuery 

Answer: A , D  

5) Identify the correct statement(s) about Google Cloud Platform (GCP) storage.

A) Cloud SQL is Google's fully managed, petabyte scale, low cost analytics data warehouse to find meaningful insights.

B) MySQL or NoSQL databases are present in Google DataStore

C) BigQuery maintains, manages, and administers relational databases on Google Cloud Platfor

D) Cloud Storage provides flexible object storage with global edge caching

Answer: B, D

6) At the time of deployment of an app in Azure, the system asks for a password. The password used to login to the Azure portal should be entered.

A) True 

B) False 

Answer: B) False

7) Google APIs help to:

A) migrate the web app to Google Cloud Platform.

B) scale up the app according to the demand/ service requests.

C) provide flexible object storage with global edge caching.

D) integrate Google's services into the application.

Answer: D) Integrate Google's service into the application

8) Statement 1: Azure supports public cloud platforms.

Statement 2: Azure App Service plan defines security.

A) Statement 1 is True and Statement 2 is False

B) Statement 1 is False and Statement 2 is True

C) Both statements are True

D) Both statements are False

Answer: C) Both statements are True

9) What core function(s) do(es) Keystone perform in OpenStack?

A) Networking

B) Compute

C) Authentication and Identity service

D) Storage

Answer: C)Authentication and Identity service

10) Identify the incorrect statement(s) on Google App Engine.

A) It is a part of Google Cloud Platform (GCP) "compute" infrastructure

B) It is a part of Google Cloud Platform (GCP) "services" infrastructure

C) While using Google App Engine, we need to worry about patching and maintenance. 

D) It is a Platform as a Service (PaaS) component of GCP

Answer: B , C