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Hortonworks-Certified-Apache-Hadoop-2.0-Developer(Pig and Hive Developer) Sample Questions:

1. Which one of the following statements describes the relationship between the NodeManager and the
ApplicationMaster?

A) The ApplicationMaster starts the NodeManager in a Container
B) The ApplicationMaster starts the NodeManager outside of a Container
C) The NodeManager requests resources from the ApplicationMaster
D) The NodeManager creates an instance of the ApplicationMaster

2. You need to move a file titled "weblogs" into HDFS. When you try to copy the file, you can't. You know you
have ample space on your DataNodes. Which action should you take to relieve this situation and store
more files in HDFS?

A) Increase the block size on your remaining files.
B) Decrease the block size on your remaining files.
C) Increase the amount of memory for the NameNode.
D) Decrease the block size on all current files in HDFS.
E) Increase the number of disks (or size) for the NameNode.
F) Increase the block size on all current files in HDFS.

3. A NameNode in Hadoop 2.0 manages ______________.

A) A single namespace
B) An arbitrary number of namespaces
C) No namespaces
D) Two namespaces: an active namespace and a backup namespace

4. Which of the following tool was designed to import data from a relational database into HDFS?

A) Sqoop
B) HCatalog
C) Flume
D) Ambari

5. What does the following WebHDFS command do?
Curl -1 -L "http://host:port/webhdfs/v1/foo/bar?op=OPEN"

A) Read a file /foo/bar
B) Delete a directory /foo/bar
C) Make a directory /foo/bar
D) List a directory /foo

Solutions: