Cloudera CCD-333

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Cloudera Certified Developer for Apache Hadoop Sample Questions:

1. Which of the following utilities allows you to create and run MapReduce jobs with any executable or script as the mapper and/or the reducer?

A) Hadoop Streaming
B) Sqoop
C) Flume
D) Oozie

2. Which two of the following are valid statements? (Choose two)

A) HDFS is a distributed file system that replaces ext3 or ext4 on Linux nodes in a Hadoop cluster.
B) HDFS has the Characteristic of supporting a "write once, read many" data access model.
C) HDFS is a distributed file system that runs on top of native OS filesystems and is well suited to storage of very large data sets.
D) HDFS is optimized for storing a large number of files smaller than the HDFS block size.

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

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

4. You need to import a portion of a relational database every day as files to HDFS, and generate Java classes to Interact with your imported data. Which of the following tools should you use to accomplish this?

A) Hive
B) Sqoop
C) Flume
D) Oozie
E) Pig
F) fuse-dfs
G) Hue

5. Which MapReduce daemon runs on each slave node and participates in job execution?

A) NameNode
B) Secondary NameNode
C) JobTracker
D) TaskTracker

Solutions: