McqMate
| 101. |
How many technologies are used for most of the syndicated content on the Internet? |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| Answer» B. 2 | |
| 102. |
Which of the following technology is used for syndicated content? |
| A. | ajax |
| B. | rss |
| C. | javascript |
| D. | all of the mentioned |
| Answer» B. rss | |
| 103. |
The full form of AJAX is |
| A. | asynchronous javascript and xml |
| B. | another java and xml library |
| C. | abstract json and xml |
| D. | none of the mentioned |
| Answer» A. asynchronous javascript and xml | |
| 104. |
The advantages of Ajax is |
| A. | bandwidth utilization |
| B. | more interactive |
| C. | speeder retrieval of data |
| D. | all of these |
| Answer» D. all of these | |
| 105. |
which of the following are the controls of Ajax? |
| A. | scriptmanager |
| B. | scriptmanagerproxy |
| C. | updateprogress |
| D. | all of the mentioned |
| Answer» D. all of the mentioned | |
| 106. |
Which of the following type of virtualization is also characteristic of cloud computing? |
| A. | storage |
| B. | application |
| C. | cpu |
| D. | all of the mentioned |
| Answer» D. all of the mentioned | |
| 107. |
Virtualization assigns a logical name for a physical resource and then provides a pointer to that physical resource when a request is made |
| A. | true |
| B. | false |
| Answer» A. true | |
| 108. |
Virtual Machines (VMs) are offered in cloud by |
| A. | saas |
| B. | paas |
| C. | iaas |
| D. | none of these |
| Answer» C. iaas | |
| 109. |
The technology used to distribute service requests to resources is referred to as |
| A. | load performing |
| B. | load scheduling |
| C. | load balancing |
| D. | all of the mentioned |
| Answer» C. load balancing | |
| 110. |
computing refers to applications and services that run on a distributed network using virtualized resources. |
| A. | distributed |
| B. | cloud |
| C. | soft |
| D. | parallel |
| Answer» B. cloud | |
| 111. |
Cloud computing is an abstraction based on the notion of pooling physical resources and presenting them as a resource. |
| A. | real |
| B. | virtual |
| C. | cloud |
| D. | none of the mentioned |
| Answer» B. virtual | |
| 112. |
Amazon’s Elastic Compute Cloud (EC2) is a well known . |
| A. | virtual machine |
| B. | cloud storage |
| C. | paas |
| D. | soa |
| Answer» A. virtual machine | |
| 113. |
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. network | |
| 114. |
is used by Amazon Web Services to store copies of a virtual machine. |
| A. | ami |
| B. | emi |
| C. | imi |
| D. | application services |
| Answer» A. ami | |
| 115. |
In para-virtualization, VMs run on hypervisor that interacts with the hardware. |
| A. | true |
| B. | false |
| Answer» B. false | |
| 116. |
Which of the following provide system resource access to virtual machines ? |
| A. | vmm |
| B. | vmc |
| C. | vnm |
| D. | all of the mentioned |
| Answer» A. vmm | |
| 117. |
An operating system running on a Type VM is a full virtualization. |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | all of the mentioned |
| Answer» A. 1 | |
| 118. |
Point out the wrong statement. |
| A. | in gmail, you can construct searches with multiple operators using the advanced search feature |
| B. | rss and atom are prototypes of a class of xml specifications called synchronized markup languages |
| C. | a typical rss document or feed contains text and metadata that can be used to indicate publication dates |
| D. | none of the mentioned |
| Answer» B. rss and atom are prototypes of a class of xml specifications called synchronized markup languages | |
| 119. |
Which of the following file format is used by RSS module? |
| A. | xml |
| B. | smil |
| C. | json |
| D. | all of the mentioned |
| Answer» A. xml | |
| 120. |
What makes Ajax unique? |
| A. | it works as a stand- alone web- development tool |
| B. | it works the same with all web browsers |
| C. | it uses c++ as its programming language |
| D. | it makes data requests asynchronously |
| Answer» D. it makes data requests asynchronously | |
| 121. |
JavaScript is also called server-side JavaScript. |
| A. | microsoft |
| B. | navigator |
| C. | livewire |
| D. | none |
| Answer» C. livewire | |
| 122. |
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. storage | |
| 123. |
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. instantiating a virtual machine is a very slow process | |
| 124. |
AMI(Amazon Machine Image) imaging service is provided by Amazon for |
| A. | private use |
| B. | public use |
| C. | pay-per-use |
| D. | all of the mentioned |
| Answer» D. all of the mentioned | |
| 125. |
Which of the following runs on Xen Hypervisor? |
| A. | azure |
| B. | aws ec2 |
| C. | aws ec3 |
| D. | all of the mentioned |
| Answer» B. aws ec2 | |
| 126. |
Virtualization allows sharing the resources of hardware across multiple a environments. |
| A. | true |
| B. | false |
| Answer» A. true | |
| 127. |
A virtual machine running on a server of a particular make cannot be relocated to b the server of another make. |
| A. | true |
| B. | false |
| Answer» B. false | |
| 128. |
Amazon Web Services (AWS) is an example of |
| A. | software as a service (saas) |
| B. | infrastructure as a service (iaas) |
| C. | platform as a service (paas) |
| D. | none of the mentioned |
| Answer» B. infrastructure as a service (iaas) | |
| 129. |
Which of the following is Type 1 Hypervisor ? |
| A. | wind river simics |
| B. | virtual server 2005 r2 |
| C. | kvm |
| D. | lynxsecure |
| Answer» D. lynxsecure | |
| 130. |
Which of the following is Type 2 VM ? |
| A. | virtuallogix vlx |
| B. | vmware esx |
| C. | xen |
| D. | lynxsecure |
| Answer» C. xen | |
| 131. |
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. emulation | |
| 132. |
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. full virtualization | |
| 133. |
Full virtualization Full virtualization |
| A. | simulates hardware within software |
| B. | has vms with the same os |
| C. | clones images |
| D. | alters the guest os |
| Answer» A. simulates hardware within software | |
| 134. |
What are the goals of Hypervisor design? |
| A. | scalability |
| B. | reliability |
| C. | isolation |
| D. | all of the above |
| Answer» D. all of the above | |
| 135. |
Bare metal hypervisor sits on top of |
| A. | physical hardware |
| B. | virtualized hardware |
| C. | operating system |
| D. | none of the above |
| Answer» A. physical hardware | |
| 136. |
If virtualization occurs at application level, OS level and hardware level, then such service in cloud is |
| A. | iaas |
| B. | saas |
| C. | paas |
| D. | no such service |
| Answer» B. saas | |
| 137. |
Order of Virtual Machine Life Cycle i) Release Ms ii) IT Service Request iii) VM in operation iv) VM Provision |
| A. | ii, i, iii, iv |
| B. | i, ii, iii & iv |
| C. | ii, iii, iv & i |
| D. | ii, iv, iii & i |
| Answer» D. ii, iv, iii & i | |
| 138. |
where a VM can be moved from one physical machine to another even as it continues to execute. |
| A. | load balancing |
| B. | migration |
| C. | live migration |
| D. | server consolidation |
| Answer» C. live migration | |
| 139. |
Which type of Hypervisor is shown in the following figure ? |
| A. | type 1 |
| B. | type 2 |
| C. | type 3 |
| D. | all of the mentioned |
| Answer» A. type 1 | |
| 140. |
Point out the wrong statement : |
| A. | load balancing virtualizes systems and resources by mapping a logical address to a physical address |
| B. | multiple instances of various google applications are running on different hosts |
| C. | google uses hardware virtualization |
| D. | all of the mentioned |
| Answer» C. google uses hardware virtualization | |
| 141. |
Which of the following should be placed in second lowermost layer for the following figure ? |
| A. | host operating system |
| B. | software |
| C. | vm |
| D. | none of the mentioned |
| Answer» A. host operating system | |
| 142. |
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. all cpus support virtual machines | |
| 143. |
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. paravirtualization | |
| 144. |
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. 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 | |
| 145. |
Which of the following operating system support operating system virtualization ? |
| A. | windows nt |
| B. | sun solaris |
| C. | windows xp |
| D. | compliance |
| Answer» B. sun solaris | |
| 146. |
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. virtual smp | |
| 147. |
VMM is |
| A. | a virtual machine |
| B. | hardware |
| C. | host os |
| D. | a layer of software |
| Answer» D. a layer of software | |
| 148. |
VMM facilitates sharing of |
| A. | memory & i/o |
| B. | cpu, memory & i/o |
| C. | cpu & memory |
| D. | i/o & cpu |
| Answer» B. cpu, memory & i/o | |
| 149. |
The BEST way to define Virtualization in cloud computing is |
| A. | virtualization enables simulating compute, network, and storage service platforms from the underlying virtual hardware |
| B. | virtualization enables abstracting compute, network, and storage service platforms from the underlying physical hardware |
| C. | virtualization enables realization of compute, network, and storage service platforms from the underlying virtual hardware |
| D. | virtualization enables emulating compute, network, and storage service platforms from the underlying virtual hardware |
| Answer» B. virtualization enables abstracting compute, network, and storage service platforms from the underlying physical hardware | |
| 150. |
Which one is NOT generally a change after Virtualization? |
| A. | virtual machines can be provisioned to any system |
| B. | hardware- independence of operating system and applications |
| C. | can manage os and application as a single unit by encapsulating them into virtual machines. |
| D. | software and hardware tightly coupled |
| Answer» D. software and hardware tightly coupled | |
| 151. |
Which one of the statement is generally NOT correct for Microkernelized Hypervisor? |
| A. | drivers run within guests |
| B. | simple partitioning functionality |
| C. | increase reliability and minimize lowest level of the tcb |
| D. | contains its own drivers model |
| Answer» D. contains its own drivers model | |
| 152. |
In multiple VM processing, CPU is alloted to the different processes in form of: |
| A. | space slices by the os |
| B. | different cpus are allocated to different processes |
| C. | time slices by the os |
| D. | frequecy slices by the os |
| Answer» A. space slices by the os | |
| 153. |
Appear IQ, Mendix, Amazon Web Services (AWS) Elastic Beanstalk, Google App Engine and Heroku, are some of the example of providing services for: |
| A. | iaas |
| B. | saas |
| C. | paas |
| D. | none |
| Answer» C. paas | |
| 154. |
Which one of the cases not impacting major system availability |
| A. | service performance degrade |
| B. | service outage by unplanned downtime |
| C. | live migration of vm for load balancing |
| D. | service outage by planned downtime |
| Answer» C. live migration of vm for load balancing | |
| 155. |
Which of the following is the central application in the AWS portfolio? |
| A. | amazon elastic compute cloud |
| B. | amazon simple queue service |
| C. | amazon simple notification service |
| D. | amazon simple storage system |
| Answer» A. amazon elastic compute cloud | |
| 156. |
Which of the following is a message queue or transaction system for distributed Internet-based applications? |
| A. | amazon elastic compute cloud |
| B. | amazon simple queue service |
| C. | amazon simple notification service |
| D. | amazon simple storage system |
| Answer» B. amazon simple queue service | |
| 157. |
Which of the following feature is used for scaling of EC2 sites? |
| A. | auto replica |
| B. | auto scaling |
| C. | auto ruling |
| D. | all of the mentioned |
| Answer» B. auto scaling | |
| 158. |
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. amazon virtual private cloud | |
| 159. |
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. amazon plans to extend the capabilities of vpc to integrate with other systems in the amazon cloud computing portfolio | |
| 160. |
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. aws premium support | |
| 161. |
Which of the following is a method for bidding on unused EC2 capacity based on the current spot price? |
| A. | on-demand instance |
| B. | reserved instances |
| C. | spot instance |
| D. | all of the mentioned |
| Answer» C. spot instance | |
| 162. |
Point out the wrong statement. |
| A. | the standard instances are not suitable for standard server applications |
| B. | high memory instances are useful for large data throughput applications such as sql server databases and data caching and retrieval |
| 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» A. the standard instances are not suitable for standard server applications | |
| 163. |
Which of the following instance has an hourly rate with no long-term commitment? |
| A. | on-demand instance |
| B. | reserved instances |
| C. | spot instance |
| D. | all of the mentioned |
| Answer» A. on-demand instance | |
| 164. |
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. iostat | |
| 165. |
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. the cost of creating an ebs volume is lesser than creating a similarly sized s3 bucket | |
| 166. |
Which of the following is also referred to edge computing? |
| A. | cloudwave |
| B. | cloudfront |
| C. | cloudspot |
| D. | all of the mentioned |
| Answer» B. cloudfront | |
| 167. |
Amazon EMR uses Hadoop processing combined with several products. |
| A. | aws |
| B. | asq |
| C. | amr |
| D. | awes |
| Answer» A. aws | |
| 168. |
What is a virtual server platform that allows users to create and run virtual machines on Amazon’s server farm. |
| A. | azure |
| B. | ec2 |
| C. | ec5 |
| D. | none of the mentioned |
| Answer» B. ec2 | |
| 169. |
is the central application in the AWS portfolio. |
| A. | amazon simple queue service |
| B. | amazon elastic compute cloud |
| C. | amazon simple notification service |
| D. | all of the above |
| Answer» B. amazon elastic compute cloud | |
| 170. |
Which of the following is a means for accessing human researchers or consultants to help solve problems on a contractual or temporary basis? |
| A. | amazon elastic mapreduce |
| B. | amazon mechanical turk |
| C. | amazon devpay |
| D. | multi-factor authentication |
| Answer» B. amazon mechanical turk | |
| 171. |
Point out the wrong statement. |
| A. | virtual private servers can provision virtual private clouds connected through virtual private networks |
| B. | amazon web services is based on soa standards |
| C. | starting in 2012, amazon.com made its web service platform available to developers on a usage-basis model |
| D. | all of the mentioned |
| Answer» C. starting in 2012, amazon.com made its web service platform available to developers on a usage-basis model | |
| 172. |
Point out the correct statement. |
| A. | sql server is having enormous impact on cloud computing |
| B. | amazon.com’s services represent the largest pure infrastructure as a service (iaas) |
| C. | ec2 is a platform as a service (paas) market |
| D. | none of the mentioned |
| Answer» B. amazon.com’s services represent the largest pure infrastructure as a service (iaas) | |
| 173. |
Which of the following is a system for creating block level storage devices that can be used for Amazon Machine Instances in EC2? |
| A. | cloudwatch |
| B. | amazon elastic block store |
| C. | aws import/export |
| D. | all of the mentioned |
| Answer» B. amazon elastic block store | |
| 174. |
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. amazon fulfillment web services | |
| 175. |
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. all of the mentioned | |
| 176. |
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. fps | |
| 177. |
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. multi-factor authentication | |
| 178. |
Which of the following is a batch processing application? |
| A. | ibm smash |
| B. | ibm websphere application server |
| C. | condor |
| D. | windows media server |
| Answer» C. condor | |
| 179. |
Point out the correct statement. |
| A. | security can be set through passwords, kerberos tickets, or certificates |
| B. | secure access to your ec2 amis is controlled by passwords, kerberos, and 509 certificates |
| C. | most of the system image templates that amazon aws offers are based on red hat linux |
| D. | all of the mentioned |
| Answer» D. all of the mentioned | |
| 180. |
How many EC2 service zones or regions exist? |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| Answer» D. 4 | |
| 181. |
Amazon cloud-based storage system allows you to store data objects ranging in size from 1 byte up to 5GB. |
| A. | s1 |
| B. | s2 |
| C. | s3 |
| D. | s4 |
| Answer» C. s3 | |
| 182. |
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. geocaching | |
| 183. |
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. the advantages of an ebs boot partition are that you can have a volume up to 1tb | |
| 184. |
Data stored in domains doesn’t require maintenance of a schema. |
| A. | simpledb |
| B. | sql server |
| C. | oracle |
| D. | rds |
| Answer» A. simpledb | |
| 185. |
Amazon Web Services falls into which of the following cloud-computing category? |
| A. | platform as a service |
| B. | software as a service |
| C. | infrastructure as a service |
| D. | back-end as a service |
| Answer» C. infrastructure as a service | |
| 186. |
AWS reaches customers in countries. |
| A. | 137 |
| B. | 182 |
| C. | 190 |
| D. | 86 |
| Answer» C. 190 | |
| 187. |
Which of the following should be used considering factors shown in the figure? |
| A. | simpledb |
| B. | rds |
| C. | amazon ec2 |
| D. | all of the mentioned |
| Answer» B. rds | |
| 188. |
Point out the wrong statement. |
| A. | amazon machine instances are sized at various levels and rented on a computing/hour basis |
| B. | the metrics obtained by cloudwatch may be used to enable a feature called auto scaling |
| C. | a number of tools are used to support ec2 services |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |
| 189. |
Which of the following is built on top of a Hadoop framework using the Elastic Compute Cloud? |
| A. | amazon elastic mapreduce |
| B. | amazon mechanical turk |
| C. | amazon devpay |
| D. | multi-factor authentication |
| Answer» A. amazon elastic mapreduce | |
| 190. |
Which of the following correctly describes components roughly in their order of importance from top to down? |
| A. | 1. amazon elastic compute cloud 2. amazon simple storage system 3. amazon elastic block store |
| B. | 1. amazon elastic block store 2. amazon elastic compute cloud 3. amazon simple storage system |
| C. | 1. amazon simple storage system 2. amazon elastic block store 3. amazon elastic compute cloud |
| D. | none of the mentioned |
| Answer» A. 1. amazon elastic compute cloud 2. amazon simple storage system 3. amazon elastic block store | |
| 191. |
Which of the following is a Web service that can publish messages from an application and deliver them to other applications or to subscribers? |
| A. | amazon elastic compute cloud |
| B. | amazon simple queue service |
| C. | amazon simple notification service |
| D. | amazon simple storage system |
| Answer» C. amazon simple notification service | |
| 192. |
Which of the following metrics are used to support Elastic Load Balancing? |
| A. | cloudwatch |
| B. | amazon elastic block store |
| C. | aws import/export |
| D. | all of the mentioned |
| Answer» A. cloudwatch | |
| 193. |
Which of the following is an online backup and storage system? |
| A. | amazon elastic compute cloud |
| B. | amazon simple queue service |
| C. | amazon simple notification service |
| D. | amazon simple storage system |
| Answer» D. amazon simple storage system | |
| 194. |
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. ec2 | |
| 195. |
AMIs are operating systems running on the virtualization hypervisor. |
| A. | yen |
| B. | xen |
| C. | ben |
| D. | multi-factor authentication |
| Answer» B. xen | |
| 196. |
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. high cpu instances | |
| 197. |
Which of the following can be done with S3 buckets through the SOAP and REST APIs? |
| A. | upload new objects to a bucket and download them |
| B. | create, edit, or delete existing buckets |
| C. | specify where a bucket should be stored |
| D. | all of the mentioned |
| Answer» D. all of the mentioned | |
| 198. |
Which of the following operation retrieves the newest version of the object? |
| A. | put |
| B. | get |
| C. | post |
| D. | copy |
| Answer» B. get | |
| 199. |
Which of the following statement is wrong about Amazon S3? |
| A. | amazon s3 is highly reliable |
| B. | amazon s3 provides large quantities of reliable storage that is highly protected |
| C. | amazon s3 is highly available |
| D. | none of the mentioned |
| Answer» C. amazon s3 is highly available | |
| 200. |
Which of the following is relational database service provided by Amazon? |
| A. | simpledb |
| B. | sql server |
| C. | oracle |
| D. | rds |
| Answer» D. rds | |
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