Regarding DataSet, which of the following statements is incorrect?
Options:
A DataSet is a strongly typed collection of domain-specific objects
DataSet can perform most operations without deserialization
DataSet needs to be deserialized to perform operations such as sort, filter, shuffle, etC.
DataSet - highly similar to RDD. Better performance than RDD
Answer:
Which of the following options are suitable for MapReduce?
Offline computing
real-time interactive computing
Iterative calculation
Streaming Computing
The underlying data of HBase exists in the form of?
keyvalue
column store
row storage
real-time storage
Which of the following is incorrect about the BloomFilter feature of HBase?
used to filter data
Used to optimize the performance of random reads
will increase storage consumption
Can accurately determine that a certain data does not exist
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