Category: Cloud Computing Objective Questions

Cloud Computing Multiple Choice Questions on “Challenges and Obstacles to Cloud Computing”.

1. Which of the following subject area deals with pay-as-you-go usage model?
a) Accounting Management
b) Compliance
c) Data Privacy
d) All of the mentioned

Answer: a
Clarification: For cloud computing, the pay-as-you-go usage model allows for costs to be applied to individual accounts directly.

2. Point out the correct statement.
a) Except for tightly managed SaaS cloud providers, the burden of resource management is still in the hands of the user
b) Cloud computing vendors run very reliable networks
c) The low barrier to entry cannot be accompanied by a low barrier to provisioning
d) All of the mentioned

Answer: b
Clarification: Often, cloud data is load-balanced between virtual systems and replicated between sites.

3. ________ captive requires that the cloud accommodate multiple compliance regimes.
a) Licensed
b) Policy-based
c) Variable
d) All of the mentioned

Answer: b
Clarification: Compliance with laws and policies varies by geographical area.

4. Security methods such as private encryption, VLANs and firewalls comes under __________ subject area.
a) Accounting Management
b) Compliance
c) Data Privacy
d) All of the mentioned

Answer: c
Clarification: To ensure data privacy in the cloud, additional security methods such as private encryption, VLANs, firewalls, and local storage of sensitive data are necessary.

5. Point out the wrong statement.
a) Large cloud providers with geographically dispersed sites worldwide, therefore, achieve reliability rates that are hard for private systems to achieve
b) Private data centers tend to be located in places where the company or unit was founded or acquired
c) A network backbone is a very low-capacity network connection
d) None of the mentioned

Answer: c
Clarification: On the Internet, an Internet backbone consists of the high-capacity routes and routers that are typically operated by an individual service provider such as a government or commercial entity.

6. Which of the following captive area deals with monitoring?
a) Licensed
b) Variable but under control
c) Low
d) All of the mentioned

Answer: b
Clarification: For private systems, any monitoring system the organization wishes to deploy can be brought to bear.

7. Network bottlenecks occur when ______ data sets must be transferred.
a) large
b) small
c) big
d) all of the mentioned

Answer: a
Clarification: This is the case for staging,

8. The reputation for cloud computing services for the quality of those services is shared by _________
a) replicas
b) shards
c) tenants
d) all of the mentioned

Answer: c
Clarification: Clouds often have higher reliability than private systems.

9. Cloud ________ are standardized in order to appeal to the majority of its audience.
a) SVAs
b) SLAs
c) SALs
d) None of the mentioned

Answer: b
Clarification: Custom SLAs that allow for multiple data sources are difficult to obtain or enforce.

10. ___________ is a function of the particular enterprise and application in an on-premises deployment.
a) Vendor lock
b) Vendor lock-in
c) Vendor lock-ins
d) None of the mentioned

Answer: b
Clarification: Vendor lock-in for a cloud computing solution in a PaaS model is very high.

Cloud Computing Multiple Choice Questions on “Machine Imaging”.

1. Which of the following product migrate files from one datastore to another datastore?
a) vNetwork Distributed Switch
b) Storage VMotion
c) VMotion
d) None of the mentioned

Answer: b
Clarification: Virtual machine uses the datastore continues to run.

2. Point out the wrong statement.
a) A part of the DRS called the distributed power management (DPM) module can manage the power consumption of systems
b) DMS monitors network connections, provides firewall services, and enables the use of third-party switches
c) Physical computers can be standalone hosts or a set of clustered systems
d) All of the mentioned

Answer: b
Clarification: DVS has the capability to maintain a network runtime state for virtual machines as they are migrated from one physical system to another.

3. ________ virtualization abstracts networking hardware and software into a virtual network that can be managed.
a) Storage
b) Network
c) Software
d) None of the mentioned

Answer: b
Clarification: The key feature that makes virtual infrastructure so appealing for organizations implementing a cloud computing solution is flexibility.

4. Which of the following visualization is most commonly achieved through a mapping mechanism where a logical storage address is translated into a physical storage address?
a) Storage
b) Network
c) Software
d) None of the mentioned

Answer: a
Clarification: Block-based storage such as those used in SANs use a feature called a Logical Unit Identifier (LUN) with specific addresses stored in the form of an offset called the Logical Block Address (LBA).

5. Point out the wrong statement.
a) A virtual network can create virtual network interfaces
b) Instantiating a virtual machine is a very slow process
c) You can make machine images of systems in the configuration that you want to deploy or take snapshots of working virtual machines
d) All of the mentioned

Answer: b
Clarification: Instantiating a virtual machine is a very fast process, typically only a few seconds in length.

6. A _______ image makes a copy or a clone of the entire computer system inside a single container such as a file.
a) system
b) software
c) hardware
d) none of the mentioned

Answer: a
Clarification: The system imaging program is used to make this image and can be used later to restore a system image.

7. Which of the following is an open standard for storing a system image?
a) OVF
b) PPF
c) VOF
d) Compliance

Answer: a
Clarification: OVF stands for the pen Virtualization Format.

8. _________ is used by Amazon Web Services to store copies of a virtual machine.
a) AMI
b) EMI
c) IMI
d) Application services

Answer: a
Clarification: AMI stands for Amazon Machine Image.

9. AMI imaging service is provided by Amazon for ______________
a) private use
b) public use
c) pay-per-use
d) all of the mentioned

Answer: d
Clarification: An AMI can be for public use under a free distribution license, for pay-per-use with operating systems such as Windows, or shared by an EC2 user with other users who are given the privilege of access.

10. Which of the following runs on Xen Hypervisor?
a) Azure
b) AWS EC2
c) AWS EC3
d) All of the mentioned

Answer: b
Clarification: The term virtual appliance is meant to differentiate the software image from an operating virtual machine.

Questions & Answers on “Amazon EBS – Elastic Block Store”.

1. Which of the following tool is used for measuring I/O of your systems to estimate these transaction costs?
a) EBS
b) IOSTAT
c) ESW
d) All of the mentioned

Answer: b
Clarification: EBS is a service priced on the amount of storage space used.

2. Point out the wrong statement.
a) The cost of creating an EBS volume is lesser than creating a similarly sized S3 bucket
b) An EBS volume can be used as an instance boot partition
c) EBS boot partitions can be stopped and started, and they offer fast AMI boot times
d) None of the mentioned

Answer: a
Clarification: The cost of creating an EBS volume is also greater than creating a similarly sized S3 bucket.

3. Which of the following is also referred to edge computing?
a) CloudWave
b) CloudFront
c) CloudSpot
d) All of the mentioned

Answer: b
Clarification: In edge computing, content is pushed out geographically so the data is more readily available to network clients and has a lower latency when requested.

4. CloudFront supports ______ data by performing static data transfers and streaming content from one CloudFront location to another.
a) table caching
b) geocaching
c) index caching
d) windows Media Server

Answer: b
Clarification: A user requesting data from a CloudFront site is referred to the nearest geographical location.

5. Point out the correct statement.
a) A volume is mounted on a particular instance and is available to all instances
b) The advantages of an EBS boot partition are that you can have a volume up to 1TB
c) You cannot mount multiple volumes on a single instance
d) All of the mentioned

Answer: b
Clarification: EBS is similar in concept to a Storage Area Network or SAN.

6. Data stored in __________ domains doesn’t require maintenance of a schema.
a) SimpleDB
b) SQL Server
c) Oracle
d) RDS

Answer: a
Clarification: To create a high performance “simple” database, the data store created is flat; that is, it is non-relational and joins are not supported.

7. Which of the following is relational database service provided by Amazon?
a) SimpleDB
b) SQL Server
c) Oracle
d) RDS

Answer: d
Clarification: Amazon offers two different types of database services.

8. Which of the following can be considered as a distributed caching system?
a) CND
b) CDN
c) CWD
d) All of the mentioned

Answer: b
Clarification: Amazon CloudFront is referred to as a content delivery network (CDN), and sometimes called edge computing.

9. Amazon Relational Database Service is a variant of the _______ 5.1 database system.
a) Oracle
b) MySQL
c) SQL Server
d) All of the mentioned

Answer: b
Clarification: The purpose of RDS is to allow database applications that already exist to be ported to RDS and placed in an environment that is relatively automated and easy to use.

10. Which of the following database should be used for a solution that has a very high availability?
a) SimpleDB
b) RDS
c) Amazon EC2
d) None of the mentioned

Answer: a
Clarification: Use SimpleDB for the lowest administrative overhead.

Cloud Computing Multiple Choice Questions on “The Enterprise Service Bus”.

1. Which of the following service monitors compliance of your operations with governmental regulation?
a) Governance
b) Security services
c) Data services
d) None of the mentioned

Answer: a
Clarification: Data services pass messages between clients and services.

2. Point out the correct statement.
a) An ESB is not a physical bus in the sense of a network
b) ESB is an architectural pattern comprised of a set of network services that manage transactions in a Service Oriented Architecture
c) ESB is a set of service that separate clients from components on a transactional basis
d) All of the mentioned

Answer: d
Clarification: Bus in the name indicates a high degree of connectivity or fabric quality to the system; that is, the system is loosely coupled.

3. Which of the following function is performed by the service bus?
a) auditing
b) routing
c) message translation
d) all of the mentioned

Answer: d
Clarification: The service bus performs the function of mediation.

4. Which of the following is an ESB based on open standards such as Java EE?
a) InfoSphere ESB 7.0
b) WebSphere ESB 7.0
c) CloudSphere ESB 7.0
d) All of the mentioned

Answer: b
Clarification: WebSphere ESB contains both a Service Federation Management tool and an integrated Registry and Repository function.

5. Point out the wrong statement.
a) An ESB is both necessary and essential to a Service Oriented Architecture
b) Typical business processes can span a vast number of messages and events
c) An ESB plays the role of a transaction broker in SOA
d) None of the mentioned

Answer: a
Clarification: An ESB is necessary but not essential to a Service Oriented Architecture.

6. Which of the following manage message transactions?
a) Data abstraction services
b) Process management services
c) Data repositories
d) Governance

Answer: b
Clarification: Data abstraction services translate messages from one format to another, as required.

7. Which of the following statement is incorrect related to a repository and a registry in ESB?
a) Repositories and registries are both data stores
b) Repository stores references to the components of the SOA
c) A registry serves the role that a name server does in a network operating system infrastructure
d) None of the mentioned

Answer: c
Clarification: The service broker uses the rules contained in the SOA registry to perform its function as a translator and delivery agent.

8. Which of the following stores business logic and aid in governance of business processes?
a) Data abstraction services
b) Process management services
c) Data repositories
d) Governance

Answer: c
Clarification: An SOA registry contains references to rules, descriptions, and definitions of the services.

Cloud Computing Multiple Choice Questions on “Backup Types”.

1. Which of the following flag is used by backup software to specify whether a file should be backed up or not?
a) archive bit
b) passive bit
c) active bit
d) all of the mentioned

Answer: a
Clarification: The bit is set on for backup and cleared when backup has copied the file.

2. Point out the correct statement.
a) To create an image backup of an active system, you may need to stop all application
b) To create an incremental backup of an active system, you may need to stop all applications
c) Differential backup allows a system to do what is referred to as a bare metal restore
d) All of the mentioned

Answer: a
Clarification: Full System backup is also referred to as image backup.

3. Which of the following backups are faster and more efficient from a storage perspective?
a) Point-in-time
b) Incremental
c) Reverse Delta backup
d) All of the mentioned

Answer: b
Clarification: Files in intervening incremental backups may be taken as temporary or scratch versions.

4. Which of the following backups creates a full backup first and then periodically synchronizes the full copy with the live version?
a) Continuous Data Protection
b) Open file backup
c) Reverse Delta backup
d) None of the mentioned

Answer: c
Clarification: The older versions of files that have been changed are archived so that a historical record of the backup exists.

5. Point out the wrong statement.
a) To scale out, the service must allow for stored data to span additional storage systems
b) The data is backed up, and then every so often changes are amended to the backup creating is referred to as an incremental backup
c) A differential backup is related to a full system backup
d) None of the mentioned

Answer: c
Clarification: A differential backup is related to an incremental backup.

6. Which of the following backup is used by Apple’s Time Machine?
a) Continuous Data Protection
b) Open file backup
c) Reverse Delta backup
d) Mirroring

Answer: c
Clarification: Software that uses reverse delta backup system is Apple’s Time Machine and the RDIFF-BACKUP utility.

7. Which of the following backup create a cloned copy of your current data or drive?
a) Continuous Data Protection
b) Open file backup
c) Reverse Delta backup
d) None of the mentioned

Answer: a
Clarification: CDP is also referred to as mirroring.

8. Which of the following backup systems are expensive and highly customized to a particular application such as SQL Server?
a) Continuous Data Protection
b) Open file backup
c) Reverse Delta backup
d) Data archival

Answer: b
Clarification: Some applications such as database systems and messaging systems are mission critical and cannot be shut down before being backed up.

9. Which of the following is useful for legal compliance or to provide a long-term historical record?
a) Continuous Data Protection
b) Open file backup
c) Reverse Delta backup
d) Data archival

Answer: d
Clarification: Data archives are often confused with backups.

10. Which of the following is used to specify the migration of data that is no longer in use to tertiary long-term data storage for retention?
a) replicating
b) scaling
c) archiving
d) all of the mentioned

Answer: c
Clarification: You can’t restore your current data set from an archive.

Cloud Computing Multiple Choice Questions on “Video Streaming”.

1. Google Talk is a Windows only VoIP service on the desktop that uses the ________ protocol.
a) Jabber
b) Jingle
c) SIP
d) None of the mentioned

Answer: b
Clarification: It supports communication with mobile XMPP clients such as the Nokia N900 Smartphone, Blackberry, iPhone, and Android phones.

2. Point out the correct statement.
a) Video streaming over the Internet has become one of the major broadcast transmission media
b) The Internet’s “Wayback Machine” stores past versions of the Internet and includes some interesting and significant out-of-copyright video content
c) Kyte is a video platform for live and on-demand content streamed to online, mobile, and social media platforms
d) All of the mentioned

Answer: d
Clarification: Video streaming is one of these technologies that benefits greatly from deployment in the cloud.

3. Which of the following is the most widespread video streaming service?
a) Flickr
b) Dailymotion
c) Metacafe
d) All of the mentioned

Answer: d
Clarification: Metacafe is an entertainment site with movie trailers, TV shows, video games, and more.

4. Which of the following is the largest video sharing site?
a) YouTube
b) YuMe
c) Yahoo Video
d) All of the mentioned

Answer: a
Clarification: YuMe is a video advertising company.

5. Point out the wrong statement.
a) Veoh serves TV and movie content from major studios, along with uploaded user content
b) UStream.tv is a live video event streaming service
c) RuTube is a popular Japanese video-sharing site
d) None of the mentioned

Answer: c
Clarification: RuTube is a popular Russian video-sharing site.

6. Which of the following application is an example of TV over the Internet?
a) Hulu.com
b) MySpace
c) Comcast
d) None of the mentioned

Answer: a
Clarification: Hulu was launched in 2007 as a joint venture by ABC, Fox, and NBC to offer content to viewers.

7. Which of the following movie subscription service has moved to the cloud?
a) AOL
b) Netflix
c) XBox
d) None of the mentioned

Answer: b
Clarification: Netflix also is expected to use the cloud deployment to expand the support of other devices.

8. Which of the following can be best be described as a digital media receiver?
a) Apple TV
b) Google TV
c) Windows Live
d) All of the mentioned

Answer: a
Clarification: Google TV is a media center software platform that will appear in some HDTVs.

9. Which of the following media players can view HTML5 content?
a) XBMC
b) Media Player Classic
c) Moovida Core
d) All of the mentioned

Answer: d
Clarification: Kodi (formerly XBMC) is a free and open-source media player software developed by the XBMC Foundation.

10. Which of the following is the most widely used streaming video file container format?
a) H.261
b) H.262
c) H.264
d) None of the mentioned

Answer: c
Clarification: H.264 is used as the streaming format for most large video sites, such as YouTube and iTunes.