DSA-C02 무료 덤프문제 온라인 액세스

Which of the following method is used for multiclass classification?

• A.loocv
• B.one vs another
• C.all vs one
• D.one vs rest

Which of the following cross validation versions may not be suitable for very large datasets with hundreds of thousands of samples?

• A.Leave-one-out cross-validation
• B.k-fold cross-validation
• C.Holdout method
• D.All of the above

Data Scientist used streams in ELT (extract, load, transform) processes where new data inserted in-to a staging table is tracked by a stream. A set of SQL statements transform and insert the stream contents into a set of production tables. Raw data is coming in the JSON format, but for analysis he needs to transform it into relational columns in the production tables. which of the following Data transformation SQL function he can used to achieve the same?

• A.Transpose()
• B.He could not apply Transformation on Stream table data.
• C.METADATA$ACTION ()
• D.lateral flatten()

Which metric is not used for evaluating classification models?

• A.Precision
• B.Recall
• C.Accuracy
• D.Mean absolute error

What Can Snowflake Data Scientist do in the Snowflake Marketplace as Provider?

• A.Share live datasets securely and in real-time without creating copies of the data or im-posing data integration tasks on the consumer.
• B.Eliminate the costs of building and maintaining APIs and data pipelines to deliver data to customers.
• C.Publish listings for free-to-use datasets to generate interest and new opportunities among the Snowflake customer base.
• D.Publish listings for datasets that can be customized for the consumer.