Cloudera
CCA-500 · Question #75
Which two updates occur when a client application opens a stream to begin a file write on a cluster running MapReduce v1 (MRv1)?
The correct answer is E. The metadata in RAM on the NameNode is updated. F. The change is written to the edits file. See the full explanation below for the reasoning.
Question
Which two updates occur when a client application opens a stream to begin a file write on a cluster running MapReduce v1 (MRv1)?
Options
- AOnce the write stream closes on the DataNode, the DataNode immediately initiates a black report to the
- BThe change is written to the NameNode disk.
- CThe metadata in the RAM on the NameNode is flushed to disk.
- DThe metadata in RAM on the NameNode is flushed disk.
- EThe metadata in RAM on the NameNode is updated.
- FThe change is written to the edits file.
How the community answered
(44 responses)- A7% (3)
- B2% (1)
- C2% (1)
- D16% (7)
- E73% (32)
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