Explore topic-wise MCQs in Hadoop.

This section includes 8 Mcqs, each offering curated multiple-choice questions to sharpen your Hadoop knowledge and support exam preparation. Choose a topic below to get started.

1.

DURING_START_UP,_THE_____________LOADS_THE_FILE_SYSTEM_STATE_FROM_THE_FSIMAGE_AND_THE_EDITS_LOG_FILE.?$

A. DataNode
B. NameNode
C. ActionNode
D. None of the mentioned
Answer» C. ActionNode
Discussion
2.

HDFS provides a command line interface called __________ used to interact with HDFS?

A. “HDFS Shell”
B. “FS Shell”
C. “DFS Shell”
D. None of the mentioned
Answer» C. ‚Äö√Ñ√∂‚àö√ë‚àö‚à´DFS Shell‚Äö√Ñ√∂‚àö√ë‚àöœÄ
Discussion
3.

________ is the slave/worker node and holds the user data in the form of Data Blocks.

A. DataNode
B. NameNode
C. Data block
D. Replication
Answer» B. NameNode
Discussion
4.

The need for data replication can arise in various scenarios like :

A. Replication Factor is changed
B. DataNode goes down
C. Data Blocks get corrupted
D. All of the mentioned
Answer» E.
Discussion
5.

Which of the following scenario may not be a good fit for HDFS ?

A. HDFS is not suitable for scenarios requiring multiple/simultaneous writes to the same file
B. HDFS is suitable for storing data related to applications requiring low latency data access
C. HDFS is suitable for storing data related to applications requiring low latency data access
D. None of the mentioned
Answer» B. HDFS is suitable for storing data related to applications requiring low latency data access
Discussion
6.

________ NameNode is used when the Primary NameNode goes down.

A. Rack
B. Data
C. Secondary
D. None of the mentioned
Answer» D. None of the mentioned
Discussion
7.

For ________, the HBase Master UI provides information about the HBase Master uptime.

A. HBase
B. Oozie
C. Kafka
D. All of the mentioned
Answer» B. Oozie
Discussion
8.

For YARN, the ___________ Manager UI provides host and port information.

A. Data Node
B. NameNode
C. Resource
D. Replication
Answer» D. Replication
Discussion