Download Microsoft Azure Fundamentals.AZ-900.NetworkArmy.2022-09-05.112q.vcex

Reference:https://demand-planning.com/2020/01/20/the-differences-between-descriptive-diagnostic-predictive-cognitive-analytics/

Reference:https://www.sqlshack.com/what-is-database-normalization-in-sql-server/

In the ELT pipeline, the transformation occurs in the target data store. ELT only works well when the target system is powerful enough to transform the data efficiently.Incorrect Answers:The data does not need to be fully processed: Often, the three ETL phases are run in parallel to save time.For example, while data is being extracted, a transformation process could be working on data already received and prepare it for loading, and a loading process can begin working on the prepared data, rather than waiting for the entire extraction process to complete.The target does need to be a relational database.Reference:https://docs.microsoft.com/en-us/azure/architecture/data-guide/relational-data/etl

Reference:https://www.bmc.com/blogs/what-is-batch-processing-batch-processing-explained/

Reference:https://azure.microsoft.com/en-us/services/cognitive-services/speech-services/

Box 1: DiagnosticDiagnostic Analytics: At this stage you can begin to answer some of those why questions. Historical data can begin to be measured against other data to answer the question of why something happened in the past. This is the process of gathering and interpreting different data sets to identify anomalies, detect patters, and determine relationships.Box 2: PrescriptivePrescriptive analytics is a combination of data, mathematical models, and various business rules to infer actions to influence future desired outcomes.Incorrect Answer:Predictive analytics, broadly speaking, is a category of business intelligence that uses descriptive and predictive variables from the past to analyze and identify the likelihood of an unknown future outcomeBox 3: DescriptiveGenerally speaking, data analytics comes in four types:Descriptive, to answer the question: What's happening?Diagnostic, to answer the question: Why's happening?Predictive, to answer the question: What will happen?Prescriptive, to answer the question: What actions should we take?     Reference:https://demand-planning.com/2020/01/20/the-differences-between-descriptive-diagnostic-predictive-cognitive-analytics/https://azure.microsoft.com/en-us/blog/answering-whats-happening-whys-happening-and-what-will-happen-with-iot-analytics/

Reference:https://www.w3schools.com/js/js_json_arrays.asphttps://www.w3schools.com/js/js_json_objects.asp

Box 1: star schemaIn computing, the star schema is the simplest style of data mart schema and is the approach most widely used to develop data warehouses and dimensional data marts. The star schema consists of one or more fact tables referencing any number of dimension tables. The star schema is an important special case of the snowflake schema, and is more effective for handling simpler queries.Example:     Incorrect Answers:The data in the question is not normalized.The snowflake schema is a variation of the star schema, featuring normalization of dimension tables.Example:     Note: A snowflake schema is a logical arrangement of tables in a multidimensional database such that the entity relationship diagram resembles a snowflake shape. The snowflake schema is represented by centralized fact tables which are connected to multiple dimensions.[citation needed]. "Snowflaking" is a method of normalizing the dimension tables in a star schema. When it is completely normalized along all the dimension tables, the resultant structure resembles a snowflake with the fact table in the middle.Box 2: dimensionThe star schema consists of one or more fact tables referencing any number of dimension tables.Reference:https://docs.microsoft.com/en-us/azure/synapse-analytics/sql-data-warehouse/sql-data-warehouse-tables-overviewhttps://en.wikipedia.org/wiki/Star_schemahttps://en.wikipedia.org/wiki/Snowflake_schemahttps://azure.microsoft.com/en-us/blog/data-models-within-azure-analysis-services-and-power-bi/

Reference:https://docs.microsoft.com/en-us/azure/synapse-analytics/sql-data-warehouse/massively-parallel-processing-mpp-architecture

Reference:https://docs.microsoft.com/en-us/sql/relational-databases/indexes/clustered-and-nonclustered-indexes-described?view=sql-server-ver15