Hadoop Interview Questions - 1

1. User applications can instruct the namenode to cache the files by

A. adding cache file names to cache pool

B. adding cache config to cache pool

C. adding cache directive to cache pool

D. passing the file names as parameters to the cache pool

Correct Answer is : adding cache directive to cache pool

2. HDFS can be accessed over HTTP using

A. viewfs URI scheme

B. webhdfs URI scheme

C. wasb URI scheme

D. HDFS ftp

Correct Answer is : webhdfs URI scheme

3. Which of the below property gets configured on core-site.xml ?

A. Replication factor

B. Directory names to store hdfs files.

C. Host and port where MapReduce task runs.

D. Java Environment variables.

Correct Answer is : Directory names to store hdfs files.

4. Which of the below apache system deals with ingesting streaming data to hadoop

A. Ozie

B. Kafka

C. Flume

D. Hive

Correct Answer is : Flume

5. When a file in HDFS is deleted by a user

A. it is lost forever

B. It goes to trash if configured.

C. It becomes hidden from the user but stays in the file system

D. File sin HDFS cannot be deleted

Correct Answer is : It goes to trash if configured.

6. The Amazon ____________ is a Web-based service that allows business subscribers to run application programs in the Amazon.com computing environment.

A. EC3

B. EC4

C. EMR

D. None of the mentioned

Correct Answer is : None of the mentioned

7. Point out the correct statement :

A. Amazon Web Services offers reliable, scalable, and inexpensive cloud computing services

B. MongoDB runs well on Amazon EC2

C. To deploy MongoDB on EC2 you can either set up a new instance manually

D. All of the mentioned

Correct Answer is : All of the mentioned

8. Amazon ___________ is a Web service that provides real-time monitoring to Amazon’s EC2 customers.

A. AmWatch

B. CloudWatch

C. IamWatch

D. All of the mentioned

Correct Answer is : CloudWatch

9. Amazon ___________ provides developers the tools to build failure resilient applications and isolate themselves from common failure scenarios.

A. EC2

B. EC3

C. EC4

D. All of the mentioned

Correct Answer is : EC2

10. Point out the wrong statement :

A. Amazon Elastic Compute Cloud (Amazon EC2) is a web service that provides resizable compute capacity in the cloud

B. Amazon EC2 is designed to make web-scale cloud computing easier for developers.

C. Amazon EC2’s simple web service interface allows you to obtain and configure capacity with minimal friction.

D. None of the mentioned

Correct Answer is : None of the mentioned

11. Amazon EC2 provides virtual computing environments, known as :

A. chunks

B. instances

C. messages

D. none of the mentioned

Correct Answer is : instances

12. Amazon ___________ is well suited to transfer bulk amount of data.

A. EC2

B. EC3

C. EC4

D. All of the mentioned

Correct Answer is : EC3

13. The EC2 can serve as a practically unlimited set of ___________ machines.

A. virtual

B. real

C. distributed

D. all of the mentioned

Correct Answer is : virtual

14. EC2 capacity can be increased or decreased in real time from as few as one to more than ___________ virtual machines simultaneously.

A. 1000

B. 2000

C. 3000

D. None of the mentioned

Correct Answer is : 1000

15. AMI is uploaded to the Amazon _______ and registered with Amazon EC2, creating a so-called AMI identifier (AMI ID).

A. S2

B. S3

C. S4

D. S5

Correct Answer is : S2

16. Amazon EMR also allows you to run multiple versions concurrently, allowing you to control your ___________ version upgrade.

A. Pig

B. Windows Server

C. Hive

D. Ubuntu

Correct Answer is : Hive

17. Point out the correct statement :

A. Amazon Elastic MapReduce (Amazon EMR) provides support for Apache Hive.

B. Pig extends the SQL paradigm by including serialization formats and the ability to invoke mapper and reducer scripts

C. The Amazon Hive default input format is text

D. All of the mentioned

Correct Answer is : Amazon Elastic MapReduce (Amazon EMR) provides support for Apache Hive.

18. The Amazon EMR default input format for Hive is :.

A. org.apache.hadoop.hive.ql.io.CombineHiveInputFormat

B. org.apache.hadoop.hive.ql.iont.CombineHiveInputFormat

C. org.apache.hadoop.hive.ql.io.CombineFormat

D. All of the mentioned

Correct Answer is : org.apache.hadoop.hive.ql.io.CombineHiveInputFormat

19. Hadoop clusters running on Amazon EMR use ______ instances as virtual Linux servers for the master and slave nodes

A. EC2

B. EC3

C. EC4

D. None of the mentioned

Correct Answer is : EC2

20. Point out the wrong statement :

A. Apache Hive saves Hive log files to /tmp/{user.name}/ in a file named hive.log

B. Amazon EMR saves Hive logs to /mnt/var/log/apps/

C. In order to support concurrent versions of Hive, the version of Hive you run determines the log file name

D. None of the mentioned

Correct Answer is : None of the mentioned

Hadoop interview questions part 1

Hadoop interview questions part 1

Take as many assements as you can to improve your validate your skill rating

Total Questions: 20

1. User applications can instruct the namenode to cache the files by

2. HDFS can be accessed over HTTP using

3. Which of the below property gets configured on core-site.xml ?

4. Which of the below apache system deals with ingesting streaming data to hadoop

5. When a file in HDFS is deleted by a user

6. The Amazon ____________ is a Web-based service that allows business subscribers to run application programs in the Amazon.com computing environment.

7. Point out the correct statement :

8. Amazon ___________ is a Web service that provides real-time monitoring to Amazon’s EC2 customers.

9. Amazon ___________ provides developers the tools to build failure resilient applications and isolate themselves from common failure scenarios.

10. Point out the wrong statement :

11. Amazon EC2 provides virtual computing environments, known as :

12. Amazon ___________ is well suited to transfer bulk amount of data.

13. The EC2 can serve as a practically unlimited set of ___________ machines.

14. EC2 capacity can be increased or decreased in real time from as few as one to more than ___________ virtual machines simultaneously.

15. AMI is uploaded to the Amazon _______ and registered with Amazon EC2, creating a so-called AMI identifier (AMI ID).

16. Amazon EMR also allows you to run multiple versions concurrently, allowing you to control your ___________ version upgrade.

17. Point out the correct statement :

18. The Amazon EMR default input format for Hive is :.

19. Hadoop clusters running on Amazon EMR use ______ instances as virtual Linux servers for the master and slave nodes

20. Point out the wrong statement :

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