Cloud Computing Set 3

Computer Science Engineering (CSE),

Information Technology Engineering (IT),

Bachelor of Science in Computer Science TY (BSc CS),

Bachelor of Computer Applications (BCA),

Master of Science in Information Technology (MSc IT),

Bachelor of Science in Computer Science (BSc CS)

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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
Answer: 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
Answer: manage file system namespace
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
Answer: the namenode need not update mapping between file name and block name
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
Answer: the memory of thedata node
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
Answer: nodes in different data centers
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
Answer: block id and hostname of all the data nodes containing that block
Q7 | In HDFS the files cannot be
  • read
  • deleted
  • executed
  • archived
Answer: executed
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
Answer: perform read-write operation as per request for theclients
Q9 | NameNode and DataNode do communicate using
  • active pulse
  • heartbeats
  • h-signal
  • data pulse
Answer: heartbeats
Q10 | Amazon EC2 provides virtual computing environments, known as :
  • chunks
  • instances
  • messages
  • none of thementioned
Answer: instances
Q11 | Data stored in                      domains doesn’t require maintenance of a schema.
  • simpledb
  • sql server
  • oracle
  • rds
Answer: simpledb
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
Answer: amazon elastic blockstore
Q13 | Which of the following type of virtualization is also characteristic of cloudcomputing
  • storage
  • application
  • cpu
  • all of the mentioned
Answer: 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
Answer: logon authentication
Q15 | Which of the following is open cloud storage management standard by SNIA ?
  • cdmi
  • occi
  • cea
  • adequate bandwidth
Answer: cdmi
Q16 | Which of the following system does not provision storage to most users ?
  • paas
  • iaas
  • caas
  • saas
Answer: iaas
Q17 | Which of the following service is provided by Google for online storage ?
  • drive
  • skydrive
  • dropbox
  • all of the mentioned
Answer: drive
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
Answer: continuous dataprotection
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
Answer: block
Q20 | Which of the following should be used considering factors shown in the figure?
  • simpledb
  • rds
  • amazon ec2
  • all of the mentioned
Answer: rds
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
Answer: 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
Answer: amazon cloudfront
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
Answer: amazon relationaldatabase service
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
Answer: amazon relationaldatabase service
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
Answer: simpledb interoperates with both amazon ec2 andamazon s3
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