READ Free Dumps For Cloudera- CCA-332
Question ID 20609 | Someone in your data center unplugs a slave node by accident. Users of the cluster notice |
Option A | The HDFS filesystem is corrupt until the administrator re adds the DataNode to the cluster. The warnings associated with the event should be reported. |
Option B | After identifying the outage, the NameNode will naturally re-replicate the data and there will be no data loss. The administrator can re-add the DataNode at any time. The client can disregard warnings concerned with this event. Data will be under-replicated but will become properly replicated over time. |
Option C | The NameNode will re replicate the data after the administrator issues a special command. The data is not lost but is underreplicated until the administrator issues this command. |
Option D | The NameNode will identify the outage and re-replicate the data when the clients receive connection failures to the DataNode, so the end users can disregard such warnings. |
Correct Answer | B |
Question ID 20610 | What additional capability does Ganglia provide to that Hadoop alone DOES NOT provide? |
Option A | Ability to monitor number of files in HDFS. |
Option B | Ability to monitor free task slots. |
Option C | Ability to monitor processor utilization. |
Option D | Ability to monitor NameNode memory usage. |
Option E | Ability to monitor the amount of free space on HDFS. |
Correct Answer | C |