AsCEnD Bigdata

AsCEnD Bigdata Assessment

Q1. Which of the following is component of Hadoop?

Answer: All Are Correct

Q2. Which of the following is a common reason to restart hadoop process?

Answer: All Are Correct

Q3. The output key of the Mapper must be identical to the Input key of the reducer.

Answer: FALSE

Q4. Which of the file contains the configuration settings for HDFS daemons?

Answer: All Are Connected

Q5. What is a combiner ?

Answer: Runs Locally on a single Mappers output

Q6. The archive file created in Hadoop has the exteNsion of ?

Answer: har

Q7. Which of the following is component of Hadoop?

Answer: All Are Correct

Q8. Which command is used to copy file or directories recursively in Hadoop?

Answer: dcp

Q9. Hadoop works in which model?

Answer: Master-slave fashion

Q10. Which of the following is a column-oriented database that runs on top of HDFS?

Answer: Hbase

Q11. The client reading the data from HDFS file system in Hadoop does which or the following?

Answer: Get only the block locations for the namenode

Q12. Secondary Name Node is the backup of Name Node?

Answer: FALSE

Q13. You have the following key value pairs as output from your Map task
(the t)
(fox 1)
(faster 1)
(than 1)
(the 1)
(dog 1)
How many keys will be passed to the Reducer ?

Answer: 5

Q14. Zero reducers are allowed in Map Reduce?

Answer: TRUE

Q15. What is Replication Factor?

Answer: Replication factor controls how many times each individual block can be replicated