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What Types of Algorithms Are Difficult to Express in MapReduce

Question 20

Multiple Choice

What types of algorithms are difficult to express in MapReduce v1 (MRv1) ?


A) Algorithms that require applying the same mathematical function to large numbers of individual binary records.
B) Relational operations on large amounts of structured and semi-structured data.
C) Algorithms that require global, sharing states.
D) Large-scale graph algorithms that require one-step link traversal.
E) Text analysis algorithms on large collections of unstructured text (e.g, Web crawls) .

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