You are running a Hadoop cluster with NameNode on host mynamenode, a secondary NameNode
on host mysecondary and DataNodes.
Which best describes how you determine when the last checkpoint happened?

Which two features does Kerberos security add to a Hadoop cluster?

Cluster Summary
45 files and directories, 12 blocks = 57 total. Heap Size is 15.31 MB / 193.38MB(7%)

Refer to the above screenshot.
You configure the Hadoop cluster with seven DataNodes and the NameNode’s web UI displays
the details shown in the exhibit.
What does this tells you?

Identify the daemon that performs checkpoint operations of the namespace state in a cluster
configured with HDFS High Availability (HA) using Quorum based-storage?

Identity four pieces of cluster information that are stored on disk on the NameNode?

On a cluster running MapReduce v1 (MRv1), a MapReduce job is given a directory of 10 plain text
as its input directory. Each file is made up of 3 HDFS blocks. How many Mappers will run?

You have cluster running with the FIFO Scheduler enabled. You submit a large job A to the
cluster, which you expect to run for one hour. Then, you submit job B to cluster, which you expect
to run a couple of minutes only.
You submit both jobs with the same priority.
Which two best describes how the FIFO Scheduler arbitrates the cluster resources for a job and its
tasks?

Your developers request that you enable them to use Hive on your Hadoop cluster. What do install
and/or configure?

How must you format the underlying filesystem of your Hadoop cluster’s slave nodes running on
Linux?

Your cluster is running Map v1 (MRv1), with default replication set to 3, and a cluster blocks
64MB. Identify which best describes the file read process when a Client application connects into
the cluster and requests a 50MB file?