WorksheetsNPTEL-CLOUD COMPUTING-PRACTICE TEST-3 2025
Total questions: 50
Worksheet time: 2hrs 49mins
Which of the following is/are SaaS?
Google App Engine
Amazon S3
Amazon EC2
Google Docs
What is/are the requirements of cloud service providers
Decrease productivity
Increase end user satisfaction
Increase innovation
Decrease agility
Which of the following is/are essential characteristics of cloud computing?
On-demand self service
Resource pooling
Delayed elasticity
Measured Service
Utility computing is a model where service provider
makes computing resources available to the customer as needed
makes computing resources available to the customer for a fixed amount of time
charges the customer based on their usage
charges the customer with an increase rate
Which of the following is/are type(s) of deployment model of cloud?
IaaS
PaaS
Hybrid Cloud
Community Cloud
Types of XML-parsers are –
Well-formed
Well-documented
Non-validating and validating
None of the above
In public cloud, a single machine may be shared by the workloads of any combination of a subscribers.
True
False
Web Services are used to -
Reuse application-components.
Solve the interoperability problem
Connect existing software
Implement client-server paradigm
A virtual machine running on a server of a particular make cannot be relocated to the server of another make
True
False
Which is/are not a correct name(s) for an XML element?
<age>
<_Name>
<First name>
<Last name>
Which of the following cloud concept is related to pooling and sharing of resources?
Polymorphism
Abstraction
Virtualization
None of the mentioned
In full-virtualization, VMs run on hypervisor that interacts with the hardware
True
False
Which of the following is/are NOT a traditional transaction processing database?
SQL Server
Netezza
DB2
Teradata
In Big Table, data is accessed by
Time Stamp
Row Key
Column Key
None of the above
The cost to provision unit cloud resource for unit time is 0.8 units.
[Assume the delay in provisioning is 4 time units and minimum demand is 0.
(Penalty: Either pay for unused resource or missing service delivery]
Penalty is
1100 units
1200 units
1300 units
None of these
Service Level Agreement(SLA) is done between
Service Broker and Service Provider
Service Provider and Service Consumer
Service Broker and Service Consumer
None of these
Penalty Cost varies with integration of
(where D(t) and R(t) are instantaneous demand and resources at time t
D(t) + R(t)
D(t) * R(t)
D(t) / R(t)
D(t) - R(t)
In cloud, service uptime is 45 minutes and downtime is 15 minutes in an hour. What is the availability of the service?
1/3
2/3
3
3/2
Which of the following is/are follow(s) Quorum protocol for a large number of concurrent reads and writes.
Google File System (GFS)
BigTable
Dynamo
None of the above
Which of the following statement is FALSE?
Consumer creates the SLA template
Direct SLA defines contract period, billing, response time, availability, etc.
Negotiable SLA is done through negotiation with multiple external agents
All of the above
Statement 1: Row-oriented storage is optimal for transaction processing applications.
Statement 2: Column-oriented storage is efficient for data-warehouse workloads.
Which of the following is correct?
Both statement 1 and 2 are correct
Statement 1 is correct and statement 2 is false
Statement 2 is correct and statement 1 is false
Both statement 1 and 2 are false
Which of the following option(s) is/are incorrect?
SLA contains SLO
SLA contains SLO
Multiple SLAs are aggregated to KPI
KPIs are aggregated to SLO
Statement 1: Azure supports hybrid cloud platform.
Statement 2: Azure App Service plan defines security.
Statement 1 is True and Statement 2 is False
Statement 1 is False and Statement 2 is True
Both are True
Both are False
Statement 1: Each mapper reads approximately 1/M of the input from the global file system
Statement 2: Files are sorted by a key and stored to the local file system
Statement 1 is True and Statement 2 is False
Statement 1 is False and Statement 2 is True
Both are True
Both are False
U > P/A indicates that cloud is costlier than owning computer infrastructures.
Where U is Utility Premium, P is Peak Demand, and A is Average Demand
True
False
Statement 1: Access policy control refers to Violation of SoD Constraint and Cyclic Inheritance Control
Statement 2:Modification security attack is an attack on Confidentiality
Statement 1 is True and Statement 2 is False
Statement 1 is False and Statement 2 is True
Both are True
Both are False
The sufficient condition to detect SoD constraint violation is:
At least one exit role
Current entry role is senior to at least one exit role
Current entry role and at least one exit roles form the conflicting pair
Which of the following statements are TRUE about Resource Group in Microsoft Azure?
It manages Azure resources
It is a physical container
It deploys web apps, databases, and storage accounts
None of the above
Which is used for building Docker images and creating Docker containers?
Docker Engine
Docker Hub
Docker Compose
None of these
In the context of Green Cloud Computing, overall power used in datacenter is 90 units and power delivered to computing equipment is 75 units. What will be the effectiveness of power usage?
15
56
5/6
6/5
Which of the following(s) is/are aspect(s) of IoT systems?
Homogeneous systems
Functions in Real Time
Not scalable
Widely Distributed
A typical IoT based vehicular data cloud offers a variety of cooperative information services, like traffic information, parking availability etc., which can be termed as
Network as a Service
Platform as a Service
Storage as a Service
None
Which of the followings is/are type(s) of Cluster?
Load Balancing Cluster
Cost Effective Cluster
Failover Cluster
Energy Efficient Cluster
Identify the TRUE statement(s)
Google spread sheet is an example of PaaS
Amazon Web Services(AWS) is an example of IaaS
Google Cloud Platform(GCP) is an example of public cloud
Window Server 'Hyper-V' is an example of community cloud
Advantage(s) of virtual machines is/are
Migration of virtual machines is not easy
Emulate more machines than are physically available
Timeshare heavy loaded systems on one host
Easier to create new machines, and backup machines
In the context of "networking in cloud models", which of the following statement(s) is/are TRUE for IaaS model?
Physical layer is accessed by service provider
Data link layer is accessed by service consumer
Network layer is accessed by service provider
Application layer is accessed by service consumer
Which of the following is/are benefit(s) for user to use of public cloud?
No separate hardware procurement
No separate IT infrastructure maintenance required
Low scalability
Required separate power cost
Statement 1: A hybrid cloud is composed of two or more private, community, or public clouds.
Statement 2: Hybrid clouds have significant variations in performance, reliability, and security properties depending upon the type of cloud chosen to build the hybrid cloud.
Which of the following is correct?
Statement 1 is true and Statement 2 is false
Statement 1 is false and Statement 2 is true
Both Statement 1 and Statement 2 are true
Both Statement 1 and Statement 2 are false
Which of the following creates a virtual machine?
Host Operating System
Hypervisor
Container
None of these
XML was designed to display data - with focus on how data looks.
False
True
What is/are true regarding naming rules of XML elements?
Element names are not case-sensitive
Element names must start with a letter or underscore
Element names cannot contain spaces
Element names cannot contain hyphens
Simple Object Access Protocol (SOAP) provides a way to communicate between applications running on different operating systems, with different technologies and programming languages.
True
False
Service-oriented architecture (SOA) is a style of software design where services are provided to the other components by application components, through a communication protocol over a network.
True
False
Statement 1: Web Services Description Language (WSDL) is an XML-based registry for business internet services.
Statement 2: Universal Description, Discovery, and Integration (UDDI) is a data interchange format to store and transmit data objects consisting of attribute-value pairs.
Which of the following is correct?
Statement 1 is true and Statement 2 is false
Statement 1 is false and Statement 2 is true
Both Statement 1 and Statement 2 are true
Both Statement 1 and Statement 2 are false
In cloud, total service uptime is 185 minutes and availability of the service is 0.75. What is the downtime of the service?
25.8 minutes
46.25 minutes
24 minutes
None of the above
Column-oriented storage is efficient for data-warehouse workloads.
True
False
What is/are the SLA requirement(s) for PaaS cloud delivery model?
Data Retention and Deletion
Hardware Erasure and Destruction
Transparency
Privacy
In a system, 2500 unit workloads have been added. What will be the penalty?
25
100
50
751
What core function(s) do(es) Keystone perform?
Networking
Compute
Storage
Authentication and Identity service
XML was designed to display data - with focus on how data looks.
False
True
