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This set of MCQs helps students to learn about various important things such as Oozie, Orchestration, Hadoop Libraries and Utilities and Miscellaneous Hadoop Applications , helps in understanding the various concepts of Hadoop and computer science engineering.
__________ is a server based Bundle Engine that provides a higher-level oozie abstraction that will batch a set of coordinator applications.
___________ is a Java Web application used to schedule Apache Hadoop jobs.
Oozie Workflow jobs are Directed ________ graphs of actions.
Oozie v2 is a server based ___________ Engine specialized in running workflows based on time and data triggers.
Which of the following is one of the possible state for a workflow jobs?
Oozie can make _________ callback notifications on action start events and workflow end events.
___________ properties can be overridden by specifying them in the job-xml file or configuration element.
The ___________ attribute in the join node is the name of the workflow join node.
Name
To
Down
None of the mentioned
If a computation/processing task -triggered by a workflow fails to complete successfully, its transitions to _____________.
Error
Ok
True
False
If the failure is of ___________ nature, Oozie will suspend the workflow job.
Transient
Non-transient
Permanent
All of the mentioned
A _______________ action can be configured to perform file system cleanup and directory creation before starting the mapreduce job.
Map
Reduce
Map-reduce
None of the mentioned
A ___________ node enables a workflow to make a selection on the execution path to follow.
Fork
Decision
Start
None of the mentioned
Which of the following can be seen as a switch-case statement?
Fork
Decision
Start
None of the mentioned
All decision nodes must have a _____________ element to avoid bringing the workflow into an error state if none of the predicates evaluates to true.
Name
Default
Server
Client
