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Apache Oozie

Apache Oozie Interview Question-Answer

By smart_answer13

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Q.1 Which of the following is true about oozie?

       A. Oozie is an Open Source

       B. Oozie is available under Apache license 2.0.

       C. oozie manage Hadoop jobs in a distributed environment.

       D. All of the above

Ans : All of the above


Q.2 __________ is a server based Bundle Engine that provides a higher-level oozie abstraction that will batch a set of coordinator applications.

       A. Oozie v2

       B. Oozie v3

       C. Oozie v4

       D. Oozie v5

Ans :  Oozie v4


Q.3 Which of the following is incorrect job type in oozie?

       A. Oozie Workflow Jobs

       B. Oozie Coordinator Jobs

       C. Oozie Notebundle jobs

       D. All of the above

Ans : Oozie Notebundle jobs


Q.4 Point out the correct statement.

       A. Oozie is a scalable, reliable and extensible system

       B. Oozie is a server-based Workflow Engine specialized in running workflow jobs

       C. Oozie Coordinator jobs are recurrent Oozie Workflow jobs triggered by time (frequency) and data availability

       D. All of the mentioned

Ans : All of the mentioned


Q.5 What is the full form of OEP?

       A. Oozie Editor Plugin

       B. Oozie Eclipse Plugin

       C. Oozie Eclipse Partition

       D. Oozie Editor Partition

Ans : Oozie Eclipse Plugin


Q.6 ___________ is a Java Web application used to schedule Apache Hadoop jobs.

       A. Impala

       B. Oozie

       C. Mahout

       D. All of the above

Ans : Oozie


Q.7 Oozie Workflow jobs are Directed ________ graphs of actions.

       A. Acyclical

       B. Cyclical

       C. Elliptical

       D. None of the above

Ans : Acyclical


Q.8 Which of the following is one of the possible state for a workflow jobs?

       A. Start

       B. Resume

       C. End

       D. Prep

Ans : Prep


Q.9 Point out the wrong statement.

       A. Oozie v2 is a server based Coordinator Engine specialized in running workflows based on time and data triggers

       B. Oozie v1 is a server based Workflow Engine specialized in running workflow jobs with actions that execute Hadoop Map/Reduce and Pig jobs

       C. A Workflow application is DAG that coordinates the following types of actions

       D. None of the mentioned

Ans : None of the mentioned


Q.10 Workflow with id __________ should be in SUCCEEDED/KILLED/FAILED.

       A. wfId

       B. iUD

       C. iFD

       D. All of the above

Ans : wfId


Q.11 Oozie v2 is a server based ___________ Engine specialized in running workflows based on time and data triggers.

       A. Compactor

       B. Collector

       C. Coordinator

       D. All of the above

Ans : Coordinator


Q.12 Point out the correct statement.

       A. Oozie is a Java Web-Application that runs in a Java servlet-container

       B. Oozie workflow is a collection of actions arranged in a control dependency DAG

       C. hPDL is a fairly compact language

       D. All of the above

Ans : All of the above


Q.13 Oozie can make _________ callback notifications on action start events and workflow end events.

       A. HTTP

       B. TCP

       C. IP

       D. All of the mentioned

Ans : HTTP


Q.14 If the failure is of ___________ nature, Oozie will suspend the workflow job.

       A. transient

       B. non-transient

       C. permanent

       D. Temporary

Ans : non-transient


Q.15 A workflow definition is a ______ with control flow nodes or action nodes.

       A. CAG

       B. DAG

       C. BAG

       D. None of the mentioned

Ans : DAG


Q.16 A ___________ node enables a workflow to make a selection on the execution path to follow.

       A. decision

       B. Fork

       C. Start

       D. Prep

Ans : decision


Q.17 Which of the following workflow definition language is XML based?

       A. hpDL

       B. hDL

       C. hiDL

       D. none of the mentioned

Ans : hpDL


Q.18 The job is used to represented as Directed Acyclic Graphs (DAGs) to specify a sequence of actions to be executed.

       A. Oozie Bundle Jobs

       B. Oozie Coordinator Jobs

       C. Oozie Workflow Jobs

       D. All of the above

Ans : Oozie Workflow Jobs


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