Cloud Computing Set 3
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This set of Cloud Computing Multiple Choice Questions & Answers (MCQs) focuses on Cloud Computing Set 3
Q1 | A file in HDFS that is smaller than a single block size
- cannot be stored in hdfs
- occupies the full block\s size.
- can span over multiple blocks
- occupies only the size it needs and not thefull block
Q2 | Which among the following are the duties of the NameNodes
- manage file system namespace
- it is responsible for storing actual data
- perform read-write operation as per request for theclients
- none of the above
Q3 | If the IP address or hostname of a data node changes
- the namenode updates the mapping between file name and block name
- the data in that data node is lost forever
- the namenode need not update mapping between file name and block name
- there namenode has to be restarted
Q4 | For the frequently accessed HDFS files the blocks are cached in
- the memory of thedata node
- in the memory of thenamenode
- both the above
- none of the above
Q5 | Which scenario demands highest bandwidth for data transfer between nodes
- different nodes on the same rack
- nodes on differentracks in the same data center.
- nodes in different data centers
- data on the same node
Q6 | When a client contacts the namenode for accessing a file, the namenode responds with
- size of the file requested
- block id and hostname of all the data nodes containing that block
- block id of the file requested
- all of the above
Q7 | In HDFS the files cannot be
- read
- deleted
- executed
- archived
Q8 | Which among the following is the duties of the Data Nodes
- manage file system namespace
- stores meta-data
- regulates client’s access to files
- perform read-write operation as per request for theclients
Q9 | NameNode and DataNode do communicate using
- active pulse
- heartbeats
- h-signal
- data pulse
Q10 | Amazon EC2 provides virtual computing environments, known as :
- chunks
- instances
- messages
- none of thementioned
Q11 | Data stored in domains doesn’t require maintenance of a schema.
- simpledb
- sql server
- oracle
- rds
Q12 | Which of the following is a system for creating block level storage devices thatcan be used for Amazon Machine Instances in EC2 ?
- cloudwatch
- amazon elastic blockstore
- aws import/export
- all of the mentioned
Q13 | Which of the following type of virtualization is also characteristic of cloudcomputing
- storage
- application
- cpu
- all of the mentioned
Q14 | Which of the following is most important feature of cloud storage listed below?
- logon authentication
- bare file
- multiplatformsupport
- adequate bandwidth
Q15 | Which of the following is open cloud storage management standard by SNIA ?
- cdmi
- occi
- cea
- adequate bandwidth
Q16 | Which of the following system does not provision storage to most users ?
- paas
- iaas
- caas
- saas
Q17 | Which of the following service is provided by Google for online storage ?
- drive
- skydrive
- dropbox
- all of the mentioned
Q18 | Which of the following backup create a cloned copy of your current data ordrive ?
- continuous dataprotection
- open file backup
- reverse delta backup
- none of thementioned
Q19 | Which of the following storage devices exposes its storage to clients as Rawstorage that can be partitioned to create volumes ?
- block
- file
- disk
- all of the mentioned
Q20 | Which of the following should be used considering factors shown in the figure?
- simpledb
- rds
- amazon ec2
- all of the mentioned
Q21 | Point out the wrong statement.
- the metrics obtained by cloudwatch may be used to enable a feature called auto scaling
- a number of tools are used to support ec2 services
- amazon machine instances are sized at various levels and rented on a computing/hour basis
- none of the mentioned
Q22 | Which of the following is an edge-storage or content-delivery system thatcaches data in different physical locations?
- amazon relationaldatabase service
- amazon simpledb
- amazon cloudfront
- amazon associatesweb services
Q23 | Which of the following allows you to create instances of the MySQL databaseto support your Web sites?
- amazon elasticcompute cloud
- amazon simplequeue service
- amazon relationaldatabase service
- amazon simplestorage system
Q24 | . Which of the following allows you to create instances of the MySQL databaseto support your Web sites?
- amazon elasticcompute cloud
- amazon simplequeue service
- amazon relationaldatabase service
- amazon simplestorage system
Q25 | Point out the correct statement.
- amazon elastic cloud is a system for creating virtualdisks(volume)
- simpledb interoperates with both amazon ec2 andamazon s3
- ec3 is an analytics as a service provider
- none of the mentioned