Hadoop Practitioner Training - Quiz
- 1.What is the default replication factor in hadoop?
- A.
1
- B.
3
- C.
2
- D.
No Limit
- 2.When is a block treated to be under replicated?
- A.
When the datanode is not responding to namenode
- B.
When the copies are more than the replication factor
- C.
When the number of copies of a block are less than the replication factor
- D.
All of the above
- 3.Diff between traditional distributed computing vs Hadoop distributed computing
- A.
Code travels to data
- B.
Data transfer between network is eliminated
- C.
Cost effective and optimized performance
- D.
All of the Above
- 4.Hadoop is designed to replace Relational databases and best suited for OLTP applications?
- A.
True
- B.
False
- 5.Select the ones you like
- A.
Option1
- B.
Option2
- C.
Option3
- D.
Option4
- 6.In a Mapreduce program, the number of mappers to be executed is depending on
- A.
The number of filesplits/blocks that needed to be processed
- B.
Goes with default setup
- C.
We cannot predict it
- D.
Depending on the hadoop cluster capacity
- 7.The hadoop daemons that will be running in a slave node are.
- A.
Tasktracker,Secondarynamenode & Jobtracker
- B.
TaskTracker &Datanode
- C.
Task Tracker & Secondarynamenode
- D.
Task tracker, & Jobtracker
- 8.Which one do you like?
- A.
Option 1
- B.
Option 2
- C.
Option 3
- D.
Option 4
- 9.Which of the following are valid hadoop commands to copy a file from local to hdfs
- A.
Hadoop fs -copyToLocal
- B.
Hadoop fs -copyFromLocal
- C.
Hadoop fs -put
- D.
Hadoop fs -moveFromLocal
- 10.What is Speculative execution in hadoop
- A.
Executing a hadoop job automatically based on oozie scheduler setup
- B.
The ability of the framework that schedules a duplicate task if it takes too long to complete with a particular node/TT comparatively.
- C.
User kills a job that is taking too long to complete and resubmits the same job on another machine
- D.
Framework Calculates the Projected completion time of a job in hadoop
Questions: 15 | Attempts: 33668 | Last updated: Oct 19, 2021
-
Sample QuestionWhich color mode does a computer monitor use, and which does a printer use?
Questions: 10 | Attempts: 24618 | Last updated: Dec 5, 2021
-
Sample QuestionWhich one of the following is not a Scrum role?
Questions: 20 | Attempts: 11050 | Last updated: Nov 19, 2021
-
Sample QuestionWho is the Reporter IN JIRA?
Back to top