Exam DP-203 topic 4 question 58 discussion

Correct https://learn.microsoft.com/en-us/azure/synapse-analytics/monitoring/how-to-monitor-using-azure-monitor https://learn.microsoft.com/en-us/sql/t-sql/statements/set-result-set-caching-transact-sql?view=azure-sqldw-latest https://learn.microsoft.com/en-us/sql/relational-databases/system-dynamic-management-views/sys-dm-pdw-exec-requests-transact-sql?view=aps-pdw-2016-au7

sys.dm_pdw_request_steps: "Run this to check if a query was executed with a result cache hit or miss" sys.dm_pdw_exec_requests: "Run this for the time taken by result set caching operations for a query" Quoted from https://learn.microsoft.com/en-us/azure/synapse-analytics/sql-data-warehouse/performance-tuning-result-set-caching

A. Review the sys.dm_pdw_sql_requests dynamic management view in Pool1. This view provides detailed information about queries executed on the dedicated SQL pool. It includes a result_cache_hit column, which indicates whether the query used the result set cache. A value of 1 indicates that the result set cache was used. D. Review the AzureDiagnostics table in la1. The AzureDiagnostics table in the Log Analytics workspace (la1) contains telemetry data from the dedicated SQL pool, including query execution details. You can query this table to check for indicators of whether the result set cache was used for a specific query.

A. Review the sys.dm_pdw_sql_requests dynamic management view in Pool1. This view includes information about the SQL requests executed in the data warehouse, including whether the result set cache was used. C. Use the Monitor hub in Synapse Studio. The Monitor hub provides detailed insights and metrics for your Synapse Analytics activities, including the usage of result set caches for queries.

I think it should use the dynamic management view for query performance so B and E

I'll go with B and E because they're both mentioned in this documentation from Microsoft: https://learn.microsoft.com/en-us/azure/synapse-analytics/sql-data-warehouse/performance-tuning-result-set-caching#key-commands

ChatGPT 4o To identify whether a recently executed query on Pool1 used the result set cache, you can use the following methods: B. Review the sys.dm_pdw_exec_requests dynamic management view in Pool1. D. Review the AzureDiagnostics table in la1.

B and E provides information about query caching

The Monitor hub in Synapse Studio does not provide information to verify cache utilization.

The sys.dm_pdw_exec_requests dynamic management view provides details about currently or recently executed requests, and the Monitor hub in Synapse Studio can offer insights into the query execution and caching.