Pass4sure CCD-410 Question Answer

Which two of the following are valid statements? (Select two)

A. HDFS is optimized for storing a large number of files smaller than the HDFS block size.
B. HDFS has the Characteristic of supporting a "write once, read many" data access model.
C. HDFS is a distributed file system that replaces ext3 or ext4 on Linux nodes in a Hadoop cluster.
D. HDFS is a distributed file system that runs on top of native OS filesystems and is well suited to storage of very large data sets.

Answer: B, D


You need to create a GUI application to help your company's sales people add and edit customer
information. Would HDFS be appropriate for this customer information file?

A. Yes, because HDFS is optimized for random access writes.
B. Yes, because HDFS is optimized for fast retrieval of relatively small amounts of data.
C. No, because HDFS can only be accessed by MapReduce applications.
D. No, because HDFS is optimized for write-once, streaming access for relatively large files.


Answer: D

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