Originale Fragen Cloudera CCD-333 it-pruefungen

Originale Fragen Cloudera CCD-333 it-pruefungen

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CCD-333 Cloudera Certified Developer for Apache Hadoop Ich war bereit, IT-Zertifizierung Prüfung zu testen, schauen Sie sich eine Vielzahl von Prüfungen und meine Augen. Letzten Monat mein Freund kaufte einen Satz aus, dass die Frage, sagte sie die Prüfung über fast den gesamten Inhalt, ist es, ein guter Helfer zu überprüfen. Vereinzelt Bestehen der Prüfung ist mehr als 98%, wenn nicht durch, wird eine volle Rückerstattung sein.

Originale Fragen Cloudera CCD-333 it-pruefungen

QUESTION NO: 1
During the standard sort and shuffle phase of MapReduce, keys and values are passed to
reducers. Which of the following is true?

A. Keys are presented to a reducer in sorted order; values for a given key are not sorted.
B. Keys are presented to a reducer in soiled order; values for a given key are sorted in ascending order.
C. Keys are presented to a reducer in random order; values for a given key are not sorted.
D. Keys are presented to a reducer in random order; values for a given key are sorted in
ascending order.

Answer: D

QUESTION NO: 2
What is the behavior of the default partitioner?

A. The default partitioner assigns key value pairs to reducers based on an internal random number generator.
B. The default partitioner implements a round robin strategy, shuffling the key value pairs to each reducer in turn. This ensures an even partition of the key space.
C. The default partitioner computes the hash of the key. Hash values between specific ranges are associated with different buckets, and each bucket is assigned to a specific reducer.
D. The default partitioner computes the hash of the key and divides that value modulo the number of reducers. The result determines the reducer assigned to process the key-value pair.
E. The default partitioner computes the hash of the value and takes the mod of that value with the number of reducers. The result determines the reducer assigned to process the key value pair.

Answer: D

QUESTION NO: 3
Which statement best describes the data path of intermediate key-value pairs (i.e., output of the mappers)?

A. Intermediate key-value pairs are written to HDFS. Reducers read the intermediate data from HDFS.
B. Intermediate key-value pairs are written to HDFS. Reducers copy the intermediate data to the local disks of the machines running the reduce tasks.
C. Intermediate key-value pairs are written to the local disks of the machines running the map tasks, and then copied to the machine running the reduce tasks.
D. Intermediate key-value pairs are written to the local disks of the machines running the map tasks, and are then copied to HDFS. Reducers read the intermediate data from HDFS.

Answer: B

Originale Fragen Cloudera CCD-333 it-pruefungen

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