HADOOP INSTALLATION ON UBUNTU

Which of the following prerequisites is required before installing Hadoop on Ubuntu?

• Apache Kafka

• Java Development Kit (JDK)

• MySQL

• Python 3

Which command is used to check if Java is installed on your Ubuntu system?

• java -install

• java -version

• java --check

• java -help

Where should you set the JAVA_HOME environment variable for Hadoop installation?

• /etc/environment

• /usr/bin

• /hadoop/etc

• /var/log

Which Hadoop version is typically installed for single-node cluster setups?

• Hadoop 1.x

• Hadoop 2.x

• Hadoop 3.x

• Hadoop 4.x

Which command is used to extract the Hadoop tarball after downloading it?

• unzip hadoop.tar.gz

• tar -xzvf hadoop.tar.gz

• extract hadoop.tar.gz

• install hadoop.tar.gz

Which command is used to format the Hadoop filesystem?

• hdfs format

• hadoop fs -format

• hdfs namenode -format

• hadoop format

What is the purpose of the Hadoop Distributed File System (HDFS)?

• To provide a user interface for Hadoop

• To run Java applications

• To store large files across multiple machines

• To manage network traffic

What is the primary function of the Hadoop YARN resource manager?

• To store data in HDFS

• To manage and schedule resources for applications

• To provide a web interface for Hadoop

• To monitor network traffic

Which command is used to start the Hadoop daemons on a single-node cluster?

• start-all.sh

• start-dfs.sh

• hadoop start

• hadoop-daemon start

What is the default block size in HDFS for Hadoop 3.x?

• 64 MB

• 128 MB

• 256 MB

• 512 MB