Dell E20-065 - Advanced Analytics Specialist Exam for Data Scientists Exam
Page: 3 / 14
Total 66 questions
Question #11 (Topic: )
You develop a Python script "logisticpy" to evaluate the logistic function denoted as f(y) for
a given value y that includes the following Pig code:
Register 'logistic.py' using jython as udf;
z = FOREACH y GENERATE $0, udf.logistic ($0);
DUMP z;
What is the expected output when the Pig code is executed?
a given value y that includes the following Pig code:
Register 'logistic.py' using jython as udf;
z = FOREACH y GENERATE $0, udf.logistic ($0);
DUMP z;
What is the expected output when the Pig code is executed?
A. 0
B. Jython is not a supported language
C. Value of f(y) for ally
D. Tuples (y, f(y))
Answer: D
Question #12 (Topic: )
What are three of the eight visual variables?
A. Selection, orientation, and mark
B. Size, separation, and orientation
C. Position, size, and orientation
D. Position, texture, and selection
Answer: C
Question #13 (Topic: )
What do lemmatization and stemming have in common?
A. Use WordNet
B. Remove common words in a natural language
C. Reduce the high dimensionality in text
D. Use a set of heuristics
Answer: C
Question #14 (Topic: )
You conduct a TFIDF analysis on 3 documents containing raw text and derive TFIDF
("data", document y) = 1.908. You know that the term "data only appears in document 2.
What is the TF of data" in document 2?
("data", document y) = 1.908. You know that the term "data only appears in document 2.
What is the TF of data" in document 2?
A. 2 based on the following reasoning: TFIDF = TF1DF = 1 908 You then know that IDF will equal LOG (32)=0.954 Therefore, TFIDF=TF*0.954 = 1.908 TF will then round to 2
B. 4 based on the following reasoning: TFIDF = TF1DF = 1.908 You then know that IDF will equal LOG (3/1 )=0.477 Therefore, TFIDF=TF'0 477 = 1.908 TF will then round to 4
C. 6 based on the following reasoning: TFIDF = TF1DF = 1.908 You then know that IDF will equal 3/1=3 Therefore, TFIDF=TF/3 = 1.908 TF will then round to 6
D. 11 based on the following reasoning: TFIDF = TF1DF = 1908 You then know that IDF will equal LOG(3/2)=0.176 Therefore, TFIDF=TF"0.176 = 1.908 TF will then round to 11
Answer: B
Question #15 (Topic: )
How can you improve processing performance in HIVE?
A. Partition tables
B. Run the SET hive.exec.parallel = false command
C. Ensure highly normalized tables and use joins
D. Minimize bucketing
Answer: A
