What is the other notable feature of RDD and ways to create the RDD?

1.	What is the other notable feature of RDD and ways to create the RDD?
Answer» In-MEMORY: ABILITY to perform operation in the primary memory not in the disk Immutable or Read-Only: Emphasize in creating the immutable data set. Lazy evaluated: Spark computing the record when the action is going to perform, not in transformation level. Cacheable: We can cache the record, for faster processing. Parallel: Spark has an ability to parallelize the operation on data, saved in RDD. Partitioned of records: Spark has ability to partition the record, by DEFAULT its support 128 MB of partition. Parallelizing: an existing collection in your driver program. Referencing a dataset in an external STORAGE system, such as a SHARED file system, HDFS, HBase

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