How much disk space can your new nodes contain?
Your existing Hadoop cluster has 30 slave nodes, each of which has 4 x 2T hard drives. You plan
to add another 10 nodes. How much disk space can your new nodes contain?
Identify the daemon that performs checkpoint operations of the namespace state in a cluster configured with HD
Identify the daemon that performs checkpoint operations of the namespace state in a cluster
configured with HDFS High Availability (HA) using Quorum based-storage?
Which best describes how you determine when the last checkpoint happened?
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?
table provide to your client application?
Your client application connects to HBase for the first time and queries the .META. table. What
information does the .META. table provide to your client application?
Why does this improve your scan performance?
You want to do mostly full table scans on your data. In order to improve performance you increase
your block size. Why does this improve your scan performance?
What do install and/or configure?
Your developers request that you enable them to use Hive on your Hadoop cluster. What do install
and/or configure?
Which two best describes how the FIFO Scheduler arbitrates the cluster resources for a job and its tasks?
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?
What does this tells you?
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?
Which of the three data writes will dBase maintain?
Your data load application is maintaining a custom versioning scheme (not using the timestamp as
the version number). You accidentally executed three writes to a given cell all with the same
version during which time no flushes have occurred. Which of the three data writes will dBase
maintain?
What process does your client use to find the correct RegionServer to which it should send the request?
Your client connects to HBase for the first time to read a row user_1234 located in a table Users.
What process does your client use to find the correct RegionServer to which it should send the
request?