D-DS-FN-23 試験問題を無料オンラインアクセス

Consider these itemsets:
(hat, scarf, coat)
(hat, scarf, coat, gloves)
(hat, scarf, gloves)
(hat, gloves)
(scarf, coat, gloves)
What is the confidence of the rule (gloves -> hat)?

• A.80%
• B.75%
• C.60%
• D.66%

Assume you are performing an analysis to determine fraud detection on credit card usage. You will need to ensure higher-risk transactions. These may indicate that fraudulent credit card activity is retained in your data for analysis and not dropped as outliers during pre- processing.
What is the approach for loading data into the analytical sandbox for this analysis?

• A.OLTP
• B.ELT
• C.EDW
• D.ETL

What tasks need to be completed when designing an analytic sandbox?

• A.Discuss with business experts the best ways to join different datasets
• B.Define the hardware and Hadoop network requirements
• C.Estimate the size of the dataset and plan for 5-10 times the size
• D.Establish the database tables for extract, translate, and load

A data scientist plans to classify the sentiment polarity of 10, 000 product reviews collected from the Internet.
What is the most appropriate model to use? Suppose labeled training data is available.

• A.Linear regression
• B.Logistic regression
• C.Naïve Bayesian classifier
• D.K-means clustering

What is Hadoop?

• A.Map Reduce paradigm and massive unstructured data storage on commodity hardware
• B.Java classes for HDFS types and Map Reduce job management and HDFS
• C.Map Reduce paradigm and HDFS
• D.Java classes for HDFS types and Map Reduce job management and the Map Reduce paradigm