Cloudera CCD-333 Actual Tests : Cloudera Certified Developer for Apache Hadoop

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Cloudera CCD-333 Exam Syllabus Topics:

Cloudera Certified Developer for Apache Hadoop Sample Questions:

Question 1

You need a distributed, scalable, data Store that allows you random, realtime read/write access to hundreds of terabytes of data. Which of the following would you use?

A. Hue
B. Sqoop
C. Pig
D. HBase
E. Oozie
F. Hive
G. Flume

Question 2

You need to create a GUI application to help your company's sales people add and edit customer information. Would HDFS be appropriate for this customer information file?

A. Yes, because HDFS is optimized for fast retrieval of relatively small amounts of data.
B. Yes, because HDFS is optimized for random access writes.
C. No, because HDFS is optimized for write-once, streaming access for relatively large files.
D. No, because HDFS can only be accessed by MapReduce applications.

Question 3

Workflows expressed in Oozie can contain:

A. Sequences of MapReduce and Pig jobs. These are limited to linear sequences of actions with exception handlers but no forks.
B. Sequences of MapReduce jobs only; no Pig or Hive tasks or jobs. These MapReduce sequences can be combined with forks and path joins.
C. Iterative repetition of MapReduce jobs until a desired answer or state is reached.
D. Sequences of MapReduce and Pig. These sequences can be combined with other actions including forks, decision points, and path joins.

Question 4

MapReduce is well-suited for all of the following applications EXCEPT? (Choose one):

A. Online transaction processing (OLTP) for an e-commerce Website.
B. Text mining on a large collections of unstructured documents.
C. Graph mining on a large social network (e.g., Facebook friends network).
D. Analysis of large amounts of Web logs (queries, clicks, etc.).

Question 5

Which of the following describes how a client reads a file from HDFS?

A. The client queries the NameNode for the block location(s). The NameNode returns the block location(s) to the client. The client reads the data directly off the DataNode(s).
B. The client contacts the NameNode for the block location(s). The NameNode then queries the DataNodes for block locations. The DataNodes respond to the NameNode, and the NameNode redirects the client to the DataNode that holds the requested data block(s). The client then reads the data directly off the DataNode.
C. The client contacts the NameNode for the block location(s). The NameNode contacts theDataNode that holds the requested data block. Data is transferred from the DataNode to the NameNode, and then from the NameNode to the client.
D. The client queries all DataNodes in parallel. The DataNode that contains the requested data responds directly to the client. The client reads the data directly off the DataNode.

Solutions: