Category: Cloud Computing Objective Questions

Cloud Computing Multiple Choice Questions on “Amazon Machine Images”.

1. Which of the following provides a bridge between a company’s existing network and the AWS cloud?
a) Amazon Virtual Private Cloud
b) AWS Premium Support
c) Amazon Fulfillment Web Services
d) All of the mentioned

Answer: a
Clarification: VPC connects your network resources to a set of AWS systems over a Virtual Private Network (VPN) connection and extends security
systems.

2. Point out the wrong statement.
a) Between FBA and FWS, you can create a nearly virtual store on Amazon.com
b) Amazon plans to extend the capabilities of VPC to integrate with other systems in the Amazon cloud computing portfolio
c) FPS is exposed as an API that sorts transactions into packages called Quick Starts that makes it easy to implement
d) None of the mentioned

Answer: b
Clarification: Merchant inventory is prepositioned in Amazon’s fulfillment centers.

3. Which of the following is Amazon’s technical support and consulting business?
a) Amazon Virtual Private Cloud
b) AWS Premium Support
c) Amazon Fulfillment Web Services
d) All of the mentioned

Answer: b
Clarification: Through AWS Premium Support, subscribers to AWS can get help building or supporting applications that use EC2.

4. Which of the following allows merchants to fill orders through Amazon.com fulfillment service?
a) Amazon Elastic Compute Cloud
b) Amazon Fulfillment Web Services
c) Amazon Relational Database Service
d) Amazon Simple Storage System

Answer: b
Clarification: There is no charge for using Amazon FWS.

5. Point out the correct statement.
a) With EC2, you can launch and run server instances called Amazon Machine Images (AMIs) running different operating systems such as Red Hat Linux
b) A machine image is the software and operating system running on top of the instance
c) A machine image may be thought of as the contents of a boot drive
d) All of the mentioned

Answer: d
Clarification: A machine image should be composed of a hardened operating system.

6. Which of the following provides access for developers to charge Amazon’s customers for their purchases?
a) FWS
b) FAS
c) FPS
d) All of the mentioned

Answer: c
Clarification: FPS is a payments-transfer infrastructure.

7. Which of the following uses an authentication device?
a) Amazon Elastic MapReduce
b) Amazon Mechanical Turk
c) Amazon DevPay
d) Multi-Factor Authentication

Answer: d
Clarification: Multi-Factor Authentication gives you two layers of protection: your user id and password.

8. _________ is a virtual server platform that allows users to create and run virtual machines on Amazon’s server farm.
a) EC2
b) Azure
c) EC5
d) None of the mentioned

Answer: a
Clarification: You can add or subtract virtual servers elastically as needed.

9. AMIs are operating systems running on the _____ virtualization hypervisor.
a) Yen
b) Xen
c) Ben
d) Multi-Factor Authentication

Answer: b
Clarification: Each virtual private server is accorded a size rating called its EC2 Compute Unit.

10. Which of the following instance class is best used for applications that are processor or compute-intensive?
a) Standard Instances
b) High Memory Instances
c) High CPU Instances
d) None of the mentioned

Answer: c
Clarification: Applications of this type include rendering, encoding, data and others.

Cloud Computing Multiple Choice Questions on “Service Oriented Architecture”.

1. Which of the following describes a message-passing taxonomy for a component-based architecture that provides services to clients upon demand?
a) SOA
b) EBS
c) GEC
d) All of the mentioned

Answer: a
Clarification: Clients access a component that complies with SOA by passing a message containing metadata to be acted upon in a standard format.

2. Point out the correct statement.
a) Service Oriented Architecture (SOA) describes a standard method for requesting services from distributed components and managing the results
b) SOA provides the translation and management layer in an architecture that removes the barrier for a client obtaining desired services
c) With SOA, clients and components can be written in different languages and can use multiple messaging protocols
d) All of the mentioned

Answer: d
Clarification: You don’t need SOA if you are creating a monolithic cloud application that performs a specific function such as backup, e-mail, Web page access, or instant messaging.

3. Which of the following is a repeatable task within a business process?
a) service
b) bus
c) methods
d) all of the mentioned

Answer: a
Clarification: A business task is a composition of services.

4. Which of the following provides commands for defining logic using conditional statements?
a) XML
b) WS-BPEL
c) JSON
d) None of the mentioned

Answer: b
Clarification: Business process is a collection of activity graphs.

5. Point out the wrong statement.
a) SOA provides the standards that transport the messages and makes the infrastructure to support it possible
b) SOA provides access to reusable Web services over an SMTP network
c) SOA offers access to ready-made, modular, highly optimized, and widely shareable components that can minimize developer and infrastructure costs
d) None of the mentioned

Answer: b
Clarification: Service Oriented Architecture has been part of a collaborative effort on the part of both large and small vendors to come up with a common solution to architecting complex business software processes efficiently.

6. Which of the following is used to define the service component that performs the service?
a) WSDL
b) SCDL
c) XML
d) None of the mentioned

Answer: b
Clarification: SCDL stands for Service Component Definition Language.

7. Which of the following is commonly used to describe the service interface, how to bind information, and the nature of the component’s service or endpoint?
a) WSDL
b) SCDL
c) XML
d) None of the mentioned

Answer: a
Clarification: The most commonly used message-passing format is an Extensible Markup Language (XML) document using the Simple Object Access Protocol (SOAP).

Cloud Computing Multiple Choice Questions on “Virtual Storage Containers”.

1. Which of the following feature make cloud-based storage systems highly reliable?
a) Redundant networks
b) Redundant name servers
c) Replication
d) All of the mentioned

Answer: d
Clarification: Failover can involve a system simply changing the pointers to the stored object’s location.

2. Point out the correct statement.
a) With Atmos, you can create your own cloud storage system or leverage a public cloud service with Atmos online
b) IBM is a major player in cloud computing particularly for businesses
c) In managed storage, the storage service provider makes storage capacity available to users
d) All of the mentioned

Answer: a
Clarification: User pays for the storage using a pay-as-you-go model in managed cloud storage.

3. Redundancy has to be implemented at the _________ architectural level for effective results in cloud computing.
a) lower
b) higher
c) middle
d) all of the mentioned

Answer: b
Clarification: ADrive provides online cloud storage and backup solutions for personal, business and enterprise-level data.

4. Which of the following can manage data from CIFS and NFS file systems over HTTP networks?
a) StorageGRID
b) DataGRID
c) DiskGRID
d) All of the mentioned

Answer: a
Clarification: StorageGRID can enforce policies and create a tiered storage system.

5. Point out the wrong statement.
a) AWS S3 essentially lets you create your own cloud storage
b) AWS created “Availability Zones” within regions, which are sets of systems that are isolated from one another
c) Amazon Web Services (AWS) adds redundancy to its IaaS systems by allowing EC2 virtual machine instances
d) None of the mentioned

Answer: d
Clarification: In theory, instances in different availability zones shouldn’t fail at the same time.

6. A ________ is a logical unit that serves as the target for storage operations, such as the SCSI protocol READs and WRITEs.
a) GETs
b) PUN
c) LUN
d) All of the mentioned

Answer: c
Clarification: In traditional pooled storage deployments, storage partitions can be assigned and provide a device label called a Logical Unit Number.

7. Which of the following use LUNs to define a storage volume that appears to a connected computer as a device?
a) SAN
b) iSCSI
c) Fibre Channel
d) All of the mentioned

Answer: d
Clarification: Unused LUNs are the equivalent of a raw disk from which one or more volumes may be created.

8. Which of the following protocol is used for discovering and retrieving objects from a cloud?
a) OCCI
b) SMTP
c) HTTP
d) All of the mentioned

Answer: a
Clarification: Making cloud storage data discoverable on a TCP/IP network using HTTP or some other protocol requires that objects be assigned a unique identifier.

9. Which of the following disk operation is performed When a tenant is granted access to a virtual storage container?
a) CRUD
b) File system modifications
c) Partitioning
d) All of the mentioned

Answer: d
Clarification: Data stored in a virtual storage container may be stored in chunks or buckets.

10. Which of the following standard connect distributed hosts or tenants to their provisioned storage in the cloud?
a) CDMI
b) OCMI
c) COA
d) All of the mentioned

Answer: a
Clarification: CDMI stands for Cloud Data Management Interface.

Cloud Computing Multiple Choice Questions on “Media and Streaming”.

1. Which of the following is the audio streaming application by Microsoft?
a) Hangout
b) Skype
c) Voice
d) All of the mentioned

Answer: b
Clarification: Skype is a telecommunications application software product that specializes in providing video chat and voice calls from the computer.

2. Point out the correct statement.
a) Streaming files are a way of delivering large content in pieces so playback can begin more quickly
b) Streaming is used for broadcasting current events
c) Cloud computing provides large storage for maintaining libraries
d) All of the mentioned

Answer: d
Clarification: Cloud computing has a number of advantages that aid content providers and delivery systems.

3. How many types of streamed material exist for audio/video streaming applications?
a) 1
b) 2
c) 3
d) 4

Answer: b
Clarification: Streamed material can be live or on-demand.

4. Which of the following streaming is also called progressive download?
a) Offline
b) Live
c) On-demand
d) All of the mentioned

Answer: b
Clarification: Live streaming is called progressive streaming.

5. Point out the wrong statement.
a) Video streaming was among the first media applications to find widespread use on the Internet
b) VoIP is a form of audio streaming with a set of specialized protocols
c) Broadband connections and low-cost infrastructure have made video streaming services widely available
d) None of the mentioned

Answer: a
Clarification: Cloud computing has expanded the use of streamed audio to make radio, Webcasts, music sites, and other services widely available.

6. Which of the following streaming occurs from the material that is already stored to disk?
a) Online
b) Live
c) On-demand
d) All of the mentioned

Answer: c
Clarification: Streaming media are files that are sent in pieces by service and played back by a client as the delivery continues.

7. When a live stream is sent a multicast to 1,000 concurrent users at 500 kbps, the number of megabytes transferred is _______________
a) 220 GB
b) 220 MB
c) 220 TB
d) None of the mentioned

Answer: a
Clarification: Formula for data transfer is: MB transferred = Bandwidth x Time x Number of Users.

8. Which of the following is a stream sent from a service to an individual user?
a) Unicast
b) Multicast
c) Broadcast
d) None of the mentioned

Answer: a
Clarification: For many content services, such as the music services Last FM and Rhapsody, a vast number of files are being served to individual users and they go out using unicast protocols as individual streams.

9. Applications that protect streamed content by playing the part of the file and discarding it are more aptly referred to as _________
a) Streaming
b) Scaling
c) Gathering
d) All of the mentioned

Answer: a
Clarification: Even if delivery is always over a WAN connection, CDN (Content Delivery Network) still offers enormous inefficiencies.

10. Which of the following transmission protocol is used in case of a streamed media scenario?
a) TCP
b) UDP
c) HTTP
d) None of the mentioned

Answer: b
Clarification: UDP stands for user datagram protocol.

Cloud Computing Multiple Choice Questions on “Laws of Cloudonomics”.

1. _______ blurs the differences between a small deployment and a large one because scale becomes tied only to demand.
a) Leading
b) Pooling
c) Virtualization
d) All of the mentioned

Answer: b
Clarification: The virtualization of pooled resources—processors or compute engines, storage, and network connectivity—optimizes these investments and allows the cloud provider to pass along these economies to customers.

2. Point out the correct statement.
a) A branded cloud computing platform cannot extend customer relationships by offering additional service options
b) A cloud computing platform extends the company’s products and defends their franchise
c) The economies of scale cannot make a profitable business
d) All of the mentioned

Answer: b
Clarification: This is the case for Microsoft’s Windows Azure Platform.

3. A _____ is a facility that is a self-contained semiconductor assembly line.
a) fab
b) touch
c) rep
d) all of the mentioned

Answer: a
Clarification: Companies such as TSMC (Taiwan Semiconductor Manufacturing Company) have come along that provides fabrication based on customer designs, spreading their risk and optimizing their operation.

4. How many laws exist for Cloudonomics by Weinman?
a) 4
b) 5
c) 10
d) 15

Answer: c
Clarification: Joe Weinman of AT&T Global Services has concisely stated the advantages that cloud computing offers over a private or captured system.

5. Point out the wrong statement.
a) Google App Engine allows a developer to scale an application immediately
b) The customer relationship management provider SalesForce.com has a development platform called Force.com that is an IaaS offering
c) A cloud computing provider can become a hub master at the center of many ISVs offerings
d) None of the mentioned

Answer: b
Clarification: For Google, its office applications can be rolled out quickly and to large audiences.

6. Cutting latency in half requires ______ times the number of nodes in a system.
a) two
b) three
c) four
d) seven

Answer: c
Clarification: Latency, or the delay in getting a response to a request, requires both large-scale and multi-site deployments that are a characteristic of cloud providers.

7. Weinman argues that a large cloud’s size has the ability to repel ______ and DDoS attacks better than smaller systems do.
a) sniffers
b) botnets
c) trojan horse
d) all of the mentioned

Answer: b
Clarification: Superiority in numbers is the most important factor in the result of combat.

8. The reliability of a system with n redundant components and a reliability of r is ____________
a) 1-(1-r)n
b) 1-(1+r)n
c) 1+(1-r)n
d) All of the mentioned

Answer: a
Clarification: Therefore, when a datacenter achieves a reliability of 99 percent, two redundant data centers have a reliability of 99.99 percent (four nines) and three redundant data centers can achieve a reliability of 99.9999 percent (six nines).

9. A __________ site is one that is environmentally friendly: locations that are on a network backbone.
a) greenfield
b) redfield
c) greenful
d) none of the mentioned

Answer: a
Clarification: Private data centers tend to be located in places where the company or unit was founded or acquired.

10. The peak of the sum is never ________ than the sum of the peaks.
a) smaller
b) greater
c) equal to
d) none of the mentioned

Answer: b
Clarification: A cloud can deploy less capacity because the peaks of individual tenants in a shared system are averaged over time by the group of tenants.

Cloud Computing Test focuses on “Hypervisors”.

1. Which of the following allows a virtual machine to run on two or more physical processors at the same time?
a) Virtual SMP
b) Distributed Resource Scheduler
c) vNetwork Distributed Switch
d) Storage VMotion

Answer: a
Clarification: The virtualization layer that abstracts processing, memory, and storage uses the VMware ESX or ESXi virtualization server.

2. Point out the wrong statement.
a) Some hypervisors are installed over an operating system and are referred to as Type 2 or hosted VM
b) All CPUs support virtual machines
c) On a Type 2 VM, a software interface is created that emulates the devices with which a system would normally interact
d) All of the mentioned

Answer: b
Clarification: Not all CPUs support virtual machines and many that do require that you enable this support in the BIOS.

3. Which of the following type of virtualization is found in hypervisor such as Microsoft’s Hyper-V?
a) paravirtualization
b) full virtualization
c) emulation
d) none of the mentioned

Answer: a
Clarification: It is the host operating system that is performing the I/O through a para-API.

4. In _______ the virtual machine simulates hardware, so it can be independent of the underlying system hardware.
a) paravirtualization
b) full virtualization
c) emulation
d) none of the mentioned

Answer: c
Clarification: A guest operating system using emulation does not need to be modified in any way.

5. Point out the wrong statement.
a) Full virtualization requires that the host operating system provide a virtual machine interface for the guest operating system and that the guest access hardware through that host VM
b) Guest operating systems in full virtualization systems are generally faster than other virtualization schemes
c) A process virtual machine instantiates when a command begins a process
d) All of the mentioned

Answer: a
Clarification: An operating system running as a guest on a paravirtualization system must be ported to work with the host interface.

6. In a ____________ scheme, the VM is installed as a Type 1 Hypervisor directly onto the hardware.
a) paravirtualization
b) full virtualization
c) emulation
d) none of the mentioned

Answer: b
Clarification: All operating systems in full virtualization communicate directly with the VM hypervisor.

7. Which of the following operating system support operating system virtualization?
a) Windows NT
b) Sun Solaris
c) Windows XP
d) Compliance

Answer: b
Clarification: This type of virtualization creates virtual servers at the operating system or kernel level.

8. Which of the following is a service that aggregates servers into an assignable pool?
a) VMware vStorage
b) VMware vNetwork
c) VMware vCompute
d) Application services

Answer: c
Clarification: VMware vSphere is a management infrastructure framework that virtualizes system, storage, and networking hardware to create cloud computing infrastructures.

9. _________ is a service that creates and manages virtual network interfaces.
a) VMware vStorage
b) VMware vNetwork
c) VMware vCompute
d) Application services

Answer: b
Clarification: VMware vStorage is a service that aggregates storage resources into an assignable pool.