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What is the main difference between the silver layer and the gold layer in medallion architecture?
What is the main difference between the silver layer and the gold layer in medallion architecture?A . Silver may contain aggregated data B. Gold may contain aggregated data C. Data quality checks are applied in gold D. Silver is a copy of bronze data E. God is a copy of...
What would you recommend for reducing the overall cost of this approach?
You noticed that a team member started using an all-purpose cluster to develop a notebook and used the same all-purpose cluster to set up a job that can run every 30 mins so they can update un-derlying tables which are used in a dashboard. What would you recommend for reducing...
You are working on a table called orders which contains data for 2021 and you have the second table called orders_archive which contains data for 2020, you need to combine the data from two tables and there could be a possibility of the same rows between both the tables, you are looking to combine the results from both the tables and eliminate the duplicate rows, which of the following SQL statements helps you accomplish this?
You are working on a table called orders which contains data for 2021 and you have the second table called orders_archive which contains data for 2020, you need to combine the data from two tables and there could be a possibility of the same rows between both the tables, you...
as total_sales from sales
as total_sales from salesView AnswerAnswer: C Explanation: The answer is
Which of the following locations in the Databricks product architecture hosts the notebooks and jobs?
Which of the following locations in the Databricks product architecture hosts the notebooks and jobs?A . Data plane B. Control plane C. Databricks Filesystem D. JDBC data source E. Databricks web applicationView AnswerAnswer: B Explanation: The answer is Control Pane, Databricks operates most of its services out of a control...
Which of the statements are incorrect when choosing between lakehouse and Datawarehouse?
Which of the statements are incorrect when choosing between lakehouse and Datawarehouse?A . Lakehouse can have special indexes and caching which are optimized for Machine learning B. Lakehouse cannot serve low query latency with high reliability for BI workloads, only suitable for batch workloads. C. Lakehouse can be accessed through...
You are currently asked to work on building a data pipeline, you have noticed that you are currently working on a very large scale ETL many data dependencies, which of the following tools can be used to address this problem?
You are currently asked to work on building a data pipeline, you have noticed that you are currently working on a very large scale ETL many data dependencies, which of the following tools can be used to address this problem?A . AUTO LOADER B. JOBS and TASKS C. SQL Endpoints...
How would you approach resolving this issue?
A SQL Dashboard was built for the supply chain team to monitor the inventory and product orders, but all of the timestamps displayed on the dashboards are showing in UTC format, so they requested to change the time zone to the location of New York. How would you approach resolving...
What is the purpose of a gold layer in Multi-hop architecture?
What is the purpose of a gold layer in Multi-hop architecture?A . Optimizes ETL throughput and analytic query performance B. Eliminate duplicate records C. Preserves grain of original data, without any aggregations D. Data quality checks and schema enforcement E. Powers ML applications, reporting, dashboards and adhoc reports.View AnswerAnswer: E...
Which of the following SQL statements can be used to update a transactions table, to set a flag on the table from Y to N
Which of the following SQL statements can be used to update a transactions table, to set a flag on the table from Y to NA . MODIFY transactions SET active_flag = 'N' WHERE active_flag = 'Y' B. MERGE transactions SET active_flag = 'N' WHERE active_flag = 'Y' C. UPDATE transactions...
