Hortonworks Hadoop-PR000007 HDPCD Exam Questions Instant Access

Question 1

Which two of the following statements are true about Pig's approach toward data? Choose 2 answers

AAccepts only data that has a key/value pair structure

BAccepts data whether it has metadata or not

CAccepts only data that is defined by metadata tables stored in a database

DAccepts tab-delimited text data only

EAccepts any data: structured or unstructured

Answer : B, E

Question 2

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

AThe ApplicationMaster starts the NodeManager in a Container

BThe NodeManager requests resources from the ApplicationMaster

CThe ApplicationMaster starts the NodeManager outside of a Container

DThe NodeManager creates an instance of the ApplicationMaster

Answer : D

Question 3

Given the following Pig command:

logevents = LOAD 'input/my.log' AS (date:chararray, levehstring, code:int, message:string);

Which one of the following statements is true?

AThe logevents relation represents the data from the my.log file, using a comma as the parsing delimiter

BThe logevents relation represents the data from the my.log file, using a tab as the parsing delimiter

CThe first field of logevents must be a properly-formatted date string or table return an error

DThe statement is not a valid Pig command

Answer : D

Question 4

Which two of the following are true about this trivial Pig program' (choose Two)

AThe contents of myfile appear on stdout

BPig assumes the contents of myfile are comma delimited

CABC has a schema associated with it

Dmyfile is read from the user's home directory in HDFS

Answer : A, D

Question 5

Which one of the following statements describes the relationship between the ResourceManager and the ApplicationMaster?

AThe ApplicationMaster requests resources from the ResourceManager

BThe ApplicationMaster starts a single instance of the ResourceManager

CThe ResourceManager monitors and restarts any failed Containers of the ApplicationMaster

DThe ApplicationMaster starts an instance of the ResourceManager within each Container

Answer : A

Question 6

Consider the following two relations, A and B.

What is the output of the following Pig commands?

X = GROUP A BY S1;

DUMP X;

AOption

BOption

COption

DOption

Answer : D

Question 7

Which one of the following classes would a Pig command use to store data in a table defined in HCatalog?

Aorg.apache.hcatalog.pig.HCatOutputFormat

Borg.apache.hcatalog.pig.HCatStorer

CNo special class is needed for a Pig script to store data in an HCatalog table

DPig scripts cannot use an HCatalog table

Answer : B

Hortonworks-Certified-Apache-Hadoop-2.0-Developer(Pig and Hive Developer) Hadoop-PR000007 HDPCD Exam Questions