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QUESTION 46
In a typical multinomial logistic regression analysis involving six outcomes (class labels) and three input variables, how many model parameters will need to be estimated?
A. 9
B. 18
C. 20
D. 24
Answer: B
QUESTION 47
Which Hadoop Files System shell command copies data from a local file system into HDFS?
A. rm
B. cp
C. put
D. get
Answer: C
QUESTION 48
What do first-order and second-order Markov processes have in common concerning next word prediction?
A. Both use WordNet to model the probability of the next word.
B. Both are unsupervised methods.
C. Both provide the foundation to build a trigram language model.
D. Neither makes assumptions about the probability of the next word.
Answer: C
QUESTION 49
Given an input vector of features, a Random Forests model performs a classification task and ends in a tie. How does the model handle this outcome?
A. The model will be rebuilt.
B. A winner is chosen at random.
C. The tree that caused the tie is discarded.
D. One more tree is added to the forest.
Answer: B
QUESTION 50
Which HDFS feature protects against user errors causing accidental loss of data?
A. Encryption
B. Replication
C. Namenode federation
D. Snapshots
Answer: B
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