Online Access Free H13-723 Practice Test

When HDFS is running, the NameNode will load all the metadata of the file system from the disk to the memory. Therefore, the total number of files that the file system can store is limited by the memory capacity of the NameNode.

• A.False
• B.True

In HDFS application development, which of the following are the interfaces supported by the HDFS service? (multiple choice)

• A.FileSystem.create
• B.FileSystem.append
• C.BufferedOutputStream.write
• D.BufferedOutputStream.flush

When Flume writes into HDFS, what are the file generation methods? (multiple choice)

• A.According to the source file name, directly generate the file
• B.Set the size of a single file. When the file size reaches the set value, the old file will be closed and the new data will be written into the new file
• C.Set the file generation time interval. When the time interval is reached, the old file will be closed and the new data will be written into the new file
• D.Set the number of events stored in a single file. When the number of events stored in the file reaches the set value, the old file will be closed and the new data will be written to the new file

When a MapReduce application is executed, which of the following actions occurred before the map phase?

• A.sort
• B.split
• C.partition
• D.combine

In FusionInsight HD, which components provide external SQL or SQL-like capabilities? (multiple choice)

• A.Hive
• B.Redis
• C.HBase
• D.Spark