[02/Weaver/01]

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Questions and Answers

Which of the following is the main purpose of performing rate of change split?

  • To reduce query costs (correct)
  • To optimize storage consumption
  • To use table compression
  • To improve data accuracy

Which of the following is NOT an alternative to performing rate of change split?

  • Optimizing storage consumption
  • Using table compression
  • Increasing query costs (correct)
  • None of the above

What is the recommended approach for rate of change split?

  • Reducing query costs
  • Using table compression (correct)
  • Optimizing storage consumption
  • Increasing data accuracy

True or false: Rate of change split is performed to optimize storage consumption?

<p>True (A)</p>
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True or false: Rate of change split is performed to reduce query costs in some systems?

<p>True (A)</p>
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True or false: Table compression is the recommended alternative to performing rate of change split?

<p>False (B)</p>
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Match the following terms with their correct definitions:

<p>Rate of Change Split = A process performed to optimize storage consumption or reduce query costs in some systems Table Compression = An alternative to rate of change split that is recommended in some cases Optimize Storage Consumption = One of the main purposes of performing rate of change split Reduce Query Costs = Another main purpose of performing rate of change split in some systems</p>
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Match the following actions with their correct descriptions:

<p>Performing Rate of Change Split = A process that can be done to optimize storage consumption or reduce query costs Using Table Compression = An alternative method that can be used instead of rate of change split Optimizing Storage Consumption = A result achieved by performing rate of change split or using table compression Reducing Query Costs = Another result achieved by performing rate of change split or using table compression</p>
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Match the following statements with their correct interpretations:

<p>Rate of Change Split is performed to optimize storage consumption = A true statement about the purpose of rate of change split Table Compression is the recommended alternative to performing rate of change split = A true statement about the alternatives to rate of change split Rate of Change Split is performed to reduce query costs in some systems = A true statement about the purpose of rate of change split in certain scenarios The recommended approach for rate of change split is to use table compression = A statement that suggests the preferred method for rate of change split</p>
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Match the following terms with their correct definitions in the context of rate of change satellite split:

<p>Rate of change = The speed at which data in a satellite table changes over time Satellite table = A table that contains the descriptive attributes of a business entity Rate of change satellite split = A technique for splitting a satellite table into two or more tables based on the rate of change of the data Data Vault = A data modeling and database methodology that is designed to provide long-term historical storage of data</p>
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Match the following scenarios with the appropriate rate of change satellite split strategy:

<p>Customer data = Split into two satellite tables: one for data that changes frequently, and one for data that changes rarely Product data = Split into three satellite tables: one for data that changes frequently, one for data that changes occasionally, and one for data that changes rarely Employee data = Not suitable for rate of change satellite split as all attributes may have different rates of change Sales data = Split into multiple satellite tables based on the rate of change of different attributes</p>
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Match the following steps with their correct order in the process of rate of change satellite split:

<p>Step 1 = Identify the attributes in the satellite table that have different rates of change Step 2 = Create a new satellite table for each rate of change Step 3 = Transfer the corresponding data from the original satellite table to the new satellite tables Step 4 = Update the ETL processes and queries to work with the new satellite structure</p>
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Match the following benefits with the appropriate action in rate of change satellite split:

<p>Improved performance = Splitting a satellite table into multiple tables based on the rate of change of the data Reduced storage requirements = Creating separate satellite tables for data with different rates of change Easier data analysis = Having dedicated satellite tables for data that changes at different rates Simplified data querying = Working with smaller and more focused satellite tables</p>
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Match the following attributes with their expected rate of change in a rate of change satellite split:

<p>Shipping address = Frequently changing Name = Rarely changing Contact information = Frequently changing Date of birth = Rarely changing</p>
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Match the following data entities with their appropriate rate of change satellite split strategy:

<p>Sales data = Split into multiple satellite tables based on the rate of change of different attributes Inventory data = Not suitable for rate of change satellite split as all attributes may have different rates of change Customer data = Split into two satellite tables: one for data that changes frequently, and one for data that changes rarely Supplier data = Split into multiple satellite tables based on the rate of change of different attributes</p>
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Which of the following is a benefit of performing a rate of change satellite split in a Data Vault?

<p>Improving performance and storage requirements (C)</p>
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What is the first step in creating a rate of change satellite split in a Data Vault?

<p>Identifying attributes with different rates of change (D)</p>
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Which attributes in a satellite table are typically considered for a rate of change satellite split?

<p>Attributes with different rates of change (A)</p>
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What is an example of a rate of change satellite split for a customer data satellite table?

<p>Splitting the table into one for frequently changing data and one for rarely changing data (C)</p>
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What is the main purpose of performing a rate of change satellite split?

<p>Improving performance and storage requirements (B)</p>
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Why is it beneficial to split a satellite table based on the rate of change of the data?

<p>To improve performance and storage requirements (D)</p>
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True or false: Rate of change satellite split is a technique for splitting a satellite table into two or more satellite tables based on the rate of change of the data.

<p>True (A)</p>
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True or false: Rate of change satellite split can improve the performance and storage requirements of a Data Vault.

<p>True (A)</p>
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True or false: Rate of change satellite split makes it easier to query and analyze the data in a Data Vault.

<p>True (A)</p>
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True or false: Rate of change satellite split requires identifying the attributes in the satellite table that have different rates of change.

<p>True (A)</p>
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True or false: Rate of change satellite split is performed to split a satellite table into two satellite tables: one for frequently changing data and one for rarely changing data.

<p>True (A)</p>
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True or false: Rate of change satellite split is an alternative to table compression.

<p>True (A)</p>
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