Cloud Computing Quiz 3

1.The underlying hardware/software infrastructure is well exposed to its end users in the cloud environment

Select one:
True
False{correct}

2.The design decisions for a cluster based file systems are mostly related to how the data is distributed across the cluster and how it is managed

Select one:
True{correct}
False

3.Which of the following is/are true about MapReduce - a parallel programming model

for distributed computing framework?

Select one:
a. Mappers preferentially scheduled on same node or same rack as their input
block
b. Mappers save outputs to local disk before serving to reducers
c. Mapper tasks executes independently
d. All of the above{correct}
e. A & B above

4.MapReduce frame work may use local reduce functions for performance optimization

Select one:
True{correct}
False

5.Which of the following node in MapReduce architecture "Keeps track of resource usage of tasks and kills the tasks that overshoots their memory limits”?

Select one:
a. job tracker
b. task tracker{correct}
c. Both A and B
d. None of the above

6.In Google file system, a file is updated by appending new entries at any place within the file

Select one:
True
False{correct}

7.Which of the following is/are the examples of distributed file system(s)?

Select one:
a. Google File System (GFS)
b. Hadoop File System (HFS)
c. Hierarchical File System (HFS+)
d. A & B above {correct}
e. None of the above

8.MapReduce - a distributed programming framework, is suitable for all kinds of computational problems

Select one:
True
False{correct}

9.The minimum number of disks required to configure RAID 6?

Select one:
a. 2
b. 3
c. 4 {correct}
d. 6

10.Reduce task is a mandatory requirement in MapReduce parallel programming model of distributed computing framework

Select one:
True
False{correct}

11.Which of the following is true about MapReduce architecture, if a computing node crashes?

Select one:
a. Relaunch its current tasks on other nodes
b. Relaunch any maps the node previously ran
c. Both of the above{correct}
d. None of the above

12.The node that stores meta data in Hadoop distributed cluster is called as
Select one:
a. Master node
b. Namenode{correct}
c. Chunkserver
d. Chunknode

13.Multi-tenancy feature of the cloud can be implemented in which of the following cloud service(s)?

Select one:
a. SaaS
b. PaaS
c. IaaS
d. All of the above{correct}

14.The Fabric Controller of Windows Azure environment is ...

Select one:
a. a distributed program that manages the hardware and applications in a cluster internally used by Azure
b. used to assign the appropriate resources to an application
c. Both A & B{correct}
d. None of the above

15.In Windows Azure's blob service, block blobs are optimized for random read/write

operations anywhere in the content of the blob

Select one:
True
False{correct}