DEA-7TT2 試験問題を無料オンラインアクセス

Consider the example of an analysis for fraud detection on credit card usage. You will need to ensure higher-risk transactions that may indicate fraudulent credit card activity are retained in your data for analysis, and not dropped as outliers during pre-processing.
What will be your approach for loading data into the analytical sandbox for this analysis?
Response:

• A.EDW
• B.ETL
• C.OLTP
• D.ELT

When creating a presentation for a technical audience, what is the main objective?
Response:

• A.Show if the model will meet the SLA
• B.Show that you met the project goals
• C.Show the technique to be used in the production environment
• D.Show how you met the project goals

In the Map Reduce framework, what is the purpose of the Map Function?
Response:

• A.It breaks the input into smaller components and distributes to other nodes in the cluster
• B.It collects the output of the Reduce function
• C.It sorts the results of the Reduce function
• D.It processes the input and generates key-value pairs

In addition to less data movement and the ability to use larger datasets in calculations, what is a benefit of analytical calculations in a database?
Response:

• A.improved connections between disparate data sources
• B.more efficient handling of categorical values
• C.full use of data aggregation functionality
• D.quicker time to insight

What does R code nv <- v[v < 1000] do?
Response:

• A.Sets nv to TRUE or FALSE depending on whether all elements of vector v are less than 1000
• B.Selects values of vector v less than 1000, modifies v, and makes a copy to nv
• C.Removes elements of vector v less than 1000 and assigns the elements >= 1000 to nv
• D.Selects the values in vector v that are less than 1000 and assigns them to the vector nv