which of the following scenarios would it be most appropriate to consider using faster (e.g., 10 Gigabit) Ethe
Under which of the following scenarios would it be most appropriate to consider using faster (e.g.,
10 Gigabit) Ethernet as the network fabric for your Hadoop cluster?
Why is it recommended that you run the HDFS balancer periodically?
It is recommended that you run the HDFS balancer periodically. Why? (Choose 3)
What is the Secondary NameNode?
What is the Secondary NameNode?
What can you tell the users?
Someone in your data center unplugs a slave node by accident. Users of the cluster notice via the
Hadoop Web UI that the cluster size has shrunken and express concerns about data loss and
HDFS performance. The replication factor of all the files in the cluster is unchanged from the
default of 3. What can you tell the users?
How does the HDFS architecture provide redundancy?
How does the HDFS architecture provide redundancy?
How are jobs scheduled?
You have a cluster running with the Fair Scheduler enabled and configured. You submit multiple
jobs to cluster. Each job is assigned to a pool. How are jobs scheduled? (Choose 2)