nerdexam
Microsoft

DP-500 · Question #77

You need to recommend a solution to resolve the query issue of the serverless SQL pool. The solution must minimize impact on the users. What should you do?

The correct answer is D. Move the data from the serverless SQL pool to a dedicated SQL pool. To resolve query issues for a serverless SQL pool and minimize user impact, data should be moved to a dedicated SQL pool.

Implement and manage a data analytics environment

Question

You need to recommend a solution to resolve the query issue of the serverless SQL pool. The solution must minimize impact on the users. What should you do?

Options

  • AUpdate the statistics for the serverless SQL pool.
  • BMove the data from the serverless SQL pool to a dedicated Apache Spark pool.
  • CExecute the sp_set_process_data_limit stored procedure for the serverless SQL pool.
  • DMove the data from the serverless SQL pool to a dedicated SQL pool.

How the community answered

(47 responses)
  • A
    15% (7)
  • B
    2% (1)
  • C
    9% (4)
  • D
    74% (35)

Why each option

To resolve query issues for a serverless SQL pool and minimize user impact, data should be moved to a dedicated SQL pool.

AUpdate the statistics for the serverless SQL pool.

Serverless SQL pools in Azure Synapse Analytics do not support manual statistics updates; they rely on automatic query optimization.

BMove the data from the serverless SQL pool to a dedicated Apache Spark pool.

An Apache Spark pool is primarily for big data processing and machine learning, not typically the go-to solution for resolving SQL query performance issues for end-users.

CExecute the sp_set_process_data_limit stored procedure for the serverless SQL pool.

The sp_set_process_data_limit stored procedure is not applicable to Azure Synapse serverless SQL pools for resolving general query performance issues.

DMove the data from the serverless SQL pool to a dedicated SQL pool.Correct

A dedicated SQL pool offers provisioned compute resources and optimized performance for complex queries and large datasets, making it suitable for resolving persistent query issues that a serverless SQL pool might struggle with due to its on-demand nature. Migrating to this more robust environment provides a stable and performant query experience for users, addressing the core problem.

Concept tested: Azure Synapse SQL pool types and optimization

Source: https://learn.microsoft.com/en-us/azure/synapse-analytics/sql/on-demand-workspace-overview#when-to-use-a-dedicated-sql-pool-instead-of-serverless-sql-pool

Topics

#Azure Synapse Analytics#Serverless SQL Pool#Dedicated SQL Pool#Performance Optimization

Community Discussion

No community discussion yet for this question.

Full DP-500 Practice