Which of these is not a supported method of putting data into a partitioned table?
Answer(s): D
You cannot change an existing table into a partitioned table. You must create a partitioned table from scratch. Then you can either stream data into it every day and the data will automatically be put in the right partition, or you can load data into a specific partition by using "$YYYYMMDD" at the end of the table name.
https://cloud.google.com/bigquery/docs/partitioned-tables
Which of these operations can you perform from the BigQuery Web UI?
Answer(s): B
You can load data with nested and repeated fields using the Web UI.You cannot use the Web UI to:- Upload a file greater than 10 MB in size- Upload multiple files at the same time- Upload a file in SQL formatAll three of the above operations can be performed using the "bq" command.
https://cloud.google.com/bigquery/loading-data
Which methods can be used to reduce the number of rows processed by BigQuery?
Answer(s): A
If you split a table into multiple tables (such as one table for each day), then you can limit your query to the data in specific tables (such as for particular days). A better method is to use a partitioned table, as long as your data can be separated by the day.If you use the LIMIT clause, BigQuery will still process the entire table.
Why do you need to split a machine learning dataset into training data and test data?
The flaw with evaluating a predictive model on training data is that it does not inform you on how well the model has generalized to new unseen data. A model that is selected for its accuracy on the training dataset rather than its accuracy on an unseen test dataset is very likely to have lower accuracy on an unseen test dataset. The reason is that the model is not as generalized. It has specialized to the structure in the training dataset. This is called overfitting.
https://machinelearningmastery.com/a-simple-intuition-for-overfitting/
Which of these numbers are adjusted by a neural network as it learns from a training dataset (select 2 answers)?
Answer(s): A,B
A neural network is a simple mechanism that's implemented with basic math. The only difference between the traditional programming model and a neural network is that you let the computer determine the parameters (weights and bias) by learning from training datasets.
https://cloud.google.com/blog/big-data/2016/07/understanding-neural-networks-with- tensorflow-playground
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question 11 : d
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q40 the answer is not d, why are you giving incorrect answers? snapshot consolidation is used to merge the snapshot delta disk files to the vm base disk
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question 59 - a newly-created role is not assigned to any user, nor granted to any other role. answer is b https://docs.snowflake.com/en/user-guide/security-access-control-overview
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q.112 - correct answer is c - the event registry is a module that provides event definitions. answer a - not correct as it is the definition of event log
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