Category: Cloud Computing Objective Questions

Cloud Computing Multiple Choice Questions on “Connecting to the Cloud”.

1. Which of the following is one of the properties that differentiates cloud computing?
a) scalability
b) virtualization
c) composability
d) all of the mentioned

Answer: c
Clarification: Composability is the ability to build applications from component parts.

2. Point out the correct statement.
a) Cloud computing is a natural extension of many of the design principles, protocols, plumbing, and systems
b) Platforms are used to create more easy software
c) All SLAs are enforceable as contracts
d) All of the mentioned

Answer: a
Clarification: Cloud computing describes some new capabilities that are architected into an application stack and are responsible for the programmability, scalability, and virtualization of resources.

3. A _________ is a cloud computing service that is both hardware and software.
a) service
b) platform
c) model
d) all of the mentioned

Answer: b
Clarification: Virtual appliances are an important example of a platform.

4. Cloud computing doesn’t require that ________ and software be composable.
a) cloud
b) database
c) hardware
d) all of the mentioned

Answer: c
Clarification: It is a highly desirable characteristic from a developer or user’s standpoint.

5. Point out the wrong statement.
a) Virtual appliances are becoming a very important standard cloud computing deployment object
b) Cloud computing requires some standard protocols
c) Cloud computing relies on a set of protocols needed to manage interprocess communications
d) None of the mentioned

Answer: d
Clarification: Many of these protocols are standard Internet protocols.

6. The most commonly used set of protocols uses ______ as the messaging format.
a) XML
b) JSON
c) BSON
d) All of the mentioned

Answer: a
Clarification: Cloud computing builds on the architecture developed for staging large distributed network applications on the Internet.

7. Which of the following language is used to manage transactions?
a) WSDL
b) XML
c) SOAP
d) All of the mentioned

Answer: a
Clarification: WSDL is an XML format for describing network services as a set of endpoints operating on messages containing either document-oriented or procedure-oriented information.

8. Which of the architectural layer is used as backend in cloud computing?
a) client
b) cloud
c) soft
d) all of the mentioned

Answer: b
Clarification: The cloud creates a system where resources can be pooled and partitioned as needed.

9. A ________ cloud requires virtualized storage to support the staging and storage of data.
a) soft
b) compute
c) local
d) none of the mentioned

Answer: b
Clarification: From a user’s perspective, it is important that the resources appear to be infinitely scalable, that the service be measurable, and that the pricing is metered.

10. A _______ system uses components to assemble services that can be tailored for a specific purpose using standard parts.
a) reliable
b) scalable
c) composable
d) none of the mentioned

Answer: c
Clarification: Applications built in the cloud often have the property of being built from a collection of components, a feature referred to as composability.

Cloud Computing Multiple Choice Questions on “Baseline Measurements”.

1. Which of the following testing seeks to answer maximum load that my current system can support?
a) Load
b) Security
c) Navigation
d) All of the mentioned

Answer: a
Clarification: Load testing is also referred to as performance testing, reliability testing, stress testing, and volume testing.

2. Point out the correct statement.
a) Page views or hits on the Web site, as measured in transactions per second
b) Transactions completed on the database server, as measured by hits per second
c) Performance logs are a primary source of data that everyone should have available for planning purposes
d) All of the mentioned

Answer: c
Clarification: There are two important overall workload metrics in the LAMP system.

3. Which of the following command is used to display the level of CPU activity in Linux?
a) sep
b) sav
c) sar
d) None of the mentioned

Answer: c
Clarification: sar is installed in Linux as part of the sysstat package.

4. Which of the following tool captures time-dependent performance data from resources such as a CPU load?
a) RBTool
b) RRDTool
c) Perfmon
d) None of the mentioned

Answer: b
Clarification: RRDTool stands for the Round Robin Database tool.

5. Point out the wrong statement.
a) The total workload might be served by a single server instance in the cloud
b) Performance logs are the only source of performance measurements
c) The amount of resources to be deployed depends upon the characterization of the Web servers involved, their potential utilization rates, and other factors
d) All of the mentioned

Answer: b
Clarification: Performance logs are not the only source of performance measurements.

6. Which of the following tool is used for Web site monitoring service in LAMP?
a) Alertra
b) Cacti
c) Collectd
d) None of the mentioned

Answer: a
Clarification: Cacti is RRDTool graphing module.

7. Which of the following is used as an Open source distributed monitoring system?
a) Dstat
b) GraphClick
c) Ganglia
d) None of the mentioned

Answer: c
Clarification: GraphClick is a digitizer that can create a graph from an image.

8. Which of the following is not a commercial third-party Web site performance monitor?
a) Keynote
b) Munin
c) Gomez
d) All of the mentioned

Answer: b
Clarification: Munin is open source network resource monitoring tool.

9. Which of the following is available as both open source and commercial version?
a) Zabbix
b) ZenOSS
c) SiteUpTime
d) All of the mentioned

Answer: b
Clarification: ZenOSS is used to monitor operations.

Cloud Computing Multiple Choice Questions on “Windows Azure AppFabric”.

1. Which of the following is a version of Hyper-V that runs on Windows Server 2008?
a) Fabric
b) Application
c) Virtual Machines
d) All of the mentioned

Answer: a
Clarification: The Windows Azure Platform extends applications running on other platforms to the cloud using Microsoft infrastructure and a set of enterprise services.

2. Point out the wrong statement.
a) Stored data can be read using GETs
b) Stored data can be written with RETRIEVE
c) Stored data can be modified with POSTs
d) None of the mentioned

Answer: b
Clarification: Stored data can be written with PUTs.

3. A particular set of endpoints and its associated Access Control rules for an application is referred to as the _______________
a) service namespace
b) service rules
c) service agents
d) all of the mentioned

Answer: a
Clarification: Each namespace is assigned a management key that is part of the security mechanism.

4. Which of the following was formerly called Microsoft .NET Services?
a) AppFabric
b) PHP
c) WCF
d) All of the mentioned

Answer: a
Clarification: AppFabric manages the transaction to ensure that it is completed and that a response is sent to the client.

5. Point out the correct statement.
a) Azure AppFabric is a Service Bus and Access Control facility
b) Azure AppFabric supports the standard Service Oriented Architecture (SOA) protocols such as REST and SOAP and the WS-protocols
c) The function of a service bus in an SOA is to expose distributed services as an endpoint with a specific URI
d) All of the mentioned

Answer: d
Clarification: Azure AppFabric manages requests by locating the service.

6. The _________ portion of Azure AppFabric is a claims access control system that provides a token-based trust mechanism for identity management.
a) Web Control
b) Server Control
c) Access Control
d) All of the mentioned

Answer: c
Clarification: The Access Control examines the request, and if it finds it to be valid, it grants a security token to the client.

7. Which of the following is used to negotiate the exchange of information between a client and the service?
a) Compute Bus
b) Application Bus
c) Storage Bus
d) Service Bus

Answer: d
Clarification: Azure AppFabric acts as an SOA service bus.

8. Which of the following can be used to create distributed systems based on SOA?
a) Passive Directory Federation Services
b) Application Directory Federation Services
c) Active Directory Federation Services
d) None of the mentioned

Answer: c
Clarification: Access Control allows one application to trust the identity of another application.

9. Windows Server AppFabric enables Web data caching for application data and provides managed services using ___________Foundation and Windows Communication.
a) Windowsflow
b) WindowsWorkflow
c) WindowsWorkflowApp
d) All of the mentioned

Answer: b
Clarification: Azure AppFabric Access Control enables secure application requests through a token mechanism.

Cloud Computing Multiple Choice Questions on “Business Process Modeling”.

1. Which of the following is an open-source extension of the part of the UML system dealing with profiles?
a) UML
b) XMI
c) SysML
d) None of the mentioned

Answer: c
Clarification: SysML stands for Systems Modeling Language.

2. Point out the correct statement.
a) The UML standard is the work of the Object Management Group
b) SysML creates graphical representations of software systems in the form of a set of diagram types
c) UML diagrams are separated into four structural types and seven behavior types
d) All of the mentioned

Answer: a
Clarification: UML diagrams are separated into seven structural types and four behavior types.

3. Which of the following combines a modeling language with a graphical display of the various SOA components?
a) Business Process Modeling Notation
b) Service-Oriented Modeling Framework
c) Systems Modeling Language
d) All of the mentioned

Answer: b
Clarification: SOMF software allows developers to create an action plan to implement their business processes.

4. Which of the following element in SOMF determines how components are exposed?
a) Discovery
b) Conceptualization
c) Analysis
d) All of the mentioned

Answer: a
Clarification: In SOMF, the modeling is based on the elements of the service life cycle.

5. Point out the wrong statement.
a) Star model is favored in orchestration processes
b) UML models often use XMI as their interchange format
c) XMI files are generally interchangeable between the different modeling languages that can use them
d) None of the mentioned

Answer: c
Clarification: XMI has been codified as an international standard by ISO, as IS0/IEC 19503:2005.

6. Which of the following provides information on service and service boundaries, service granularity, and asset analysis?
a) SMIL
b) SOMA
c) SMA
d) All of the mentioned

Answer: b
Clarification: IBM’s Service-Oriented Modeling and Architecture is well-known SOMF modeling technology.

7. How many types of modeling topologies for message passing are used in SOMF?
a) 1
b) 2
c) 3
d) None of the mentioned

Answer: d
Clarification: Four modeling topologies for message passing are used in SOMF.

8. Which of the following topology has no orchestrator in the system?
a) Circular
b) Hierarchical
c) Network
d) Star

Answer: a
Clarification: A circular topology is one where message passing is carried out in a circular fashion.

9. Which of the following topology is useful for services that use broadcasting or multicasting services?
a) Circular
b) Hierarchical
c) Network
d) Star

Answer: d
Clarification: In a star topology, services are designed to connect through a central service.

10. Which of the following topology has a many-to-many relationship between services and their clients?
a) Circular
b) Hierarchical
c) Network
d) Star

Answer: c
Clarification: The advantage of a network topology is that the overhead associated with message passing has been minimized.

Cloud Computing Multiple Choice Questions on “Open Cloud Computing Interface”.

1. Which of the following storage API is developed by SNIA for accessing content on storage devices?
a) VIM
b) XAM
c) RIM
d) All of the mentioned

Answer: b
Clarification: XAM stands for the eXtensible Access Method.

2. Point out the correct statement.
a) The OCCI data object can manage CDMI containers
b) The CDMI data object can manage CDMI containers
c) OCCI can access objects stored in the cloud by using standard SMTP command
d) All of the mentioned

Answer: b
Clarification: The CDMI data object can manage containers that are accessible in cloud storage through other supported protocols.

3. Which of the following interface converts XAM requests into native commands that are supported by the storage hardware operating systems?
a) VIM
b) XAM
c) RIM
d) All of the mentioned

Answer: a
Clarification: VIM stands for Vendor Interface Modules.

4. In which of the following architecture, every resource is identified by a standardized URI that may be translated into both hypertext and other forms?
a) ROI
b) ROA
c) SOA
d) All of the mentioned

Answer: b
Clarification: ROA stands for Resource Oriented Architecture.

5. Point out the wrong statement.
a) CDMI uses the SNIA eXtensible Access Method to discover and access metadata associated with each data object
b) OCCI uses metadata for FTP
c) CDMI provides an interface through which applications can gain access to the storage objects in a container over the Web
d) None of the mentioned

Answer: b
Clarification: CDMI uses metadata for HTTP, system, user, and storage media attributes.

6. Which of the following action provides a wrapper for metadata and operational instructions?
a) PUT
b) GET
c) HEAD
d) Adequate bandwidth

Answer: c
Clarification: In a PUT operation, the container (store) is created if it didn’t exist previously.

7. Which of the following metadata MIME is required in a PUT operation?
a) HEAD/OPTIONS
b) GET/RECEIVE
c) KEY/VALUE
d) None of the mentioned

Answer: c
Clarification: A variety of KEY/VALUE pairs describing object attributes in CDMI is defined by the standard.

8. Which of the following standard is meant to span the different vendors’ standards and cloud infrastructure?
a) OCCI
b) CDMI
c) COA
d) All of the mentioned

Answer: a
Clarification: SNIA and the Open Grid Forum have created a joint working group to create the Open Cloud Computing Interface (OCCI).

9. Which of the following formats can be mapped by OCCI APIs?
a) Pub
b) JSON
c) Plain text
d) All of the mentioned

Answer: d
Clarification: The OCCI interface standard is based on the Resource Oriented Architecture (ROA) and uses the URI definition.

10. The ability to provide storage on demand from a storage pool is referred to as _________ provisioning.
a) thin
b) thick
c) flat
d) full

Answer: a
Clarification: Thin provisioning also applies to compute resources such as virtual machines.

Cloud Computing Multiple Choice Questions on “Mobile Cloud Applications – 1”.

1. Which of the following is the core module of Android for Internet computing?
a) SQLite RDBMS
b) SQL Server RDBMS
c) OpenPL
d) None of the mentioned

Answer: a
Clarification: Android serve as consumer or client for cloud computing services.

2. Point out the wrong statement.
a) Google Chrome to Phone Extension sends links and information from a Chrome browser to an Android phone
b) Voice Actions for Android is a voice command and speech recognition program
c) Google Goggles is used for local search
d) All of the mentioned

Answer: c
Clarification: Google Chrome to Phone Extension places a button in your Chrome browser that can push links, maps, selected text, or phone numbers out to your Android phone.

3. Which of the following Google Application can be found in Android?
a) Google Translate
b) Google Shopper
c) My Tracks
d) All of the mentioned

Answer: d
Clarification: Google Translate is a language searching program.

4. Which of the following applications are processed locally on the phone?
a) Google Earth
b) Google Maps
c) Google Voice
d) None of the mentioned

Answer: d
Clarification: Smartphones are essentially miniaturized computers which run locally.

5. Point out the correct statement.
a) Voice Actions for Android allows you to use spoken commands to control your Android phone
b) The Android Market is not available on Android phones through the Market application
c) Video is accessed with the microphone button inside the Google search box on the Android home screen
d) None of the mentioned

Answer: a
Clarification: This includes dialing a contact, getting a map, sending text or email, playing a music file and browsing the Web.

6. Which of the following has not included support for Adobe Flash or Java on its platform?
a) Microsoft
b) Apple
c) Google
d) None of the mentioned

Answer: b
Clarification: Many sites viewed within the Safari micro-browser are not completely rendered.

7. Which of the following is Apple’s cloud service for hosted email service?
a) MobileMe
b) MobApp
c) MobileCloud
d) None of the mentioned

Answer: a
Clarification: Apple’s Mobile Me contains a number of cloud services such as iDisk, hosted e-mail, and more.

8. Which of the following programming medium is used by MobileMe to create the appearance of a desktop application inside a browser?
a) HTML
b) DHTML
c) Jquery
d) All of the mentioned

Answer: b
Clarification: The central application in the suite is Apple’s hosted em-ail service.

9. Which of the following is a photo and video sharing service by MobileMe?
a) iDisk
b) Find My iPhone
c) iWeb Publish
d) MobileMe Gallery

Answer: d
Clarification: iDisk is an online storage drive that can browsed and from which items can be shared.

10. Which of the following is Apple’s instant messaging service that interoperates with AIM?
a) iDisk
b) iChat
c) wechat
d) all of the mentioned

Answer: b
Clarification: With MobileMe installed on Windows, you can synchronize data with your MobileMe account to Windows.