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Oracle Database 12c: Performance Management and Tuning: 1Z0-064

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Oracle Database 12c: Performance Management and Tuning: 1Z0-064

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  • Vendor: Oracle
  • Exam Code: 1Z0-064
  • Exam Name: Oracle Database 12c: Performance Management and Tuning
  • Certifications: Oracle Database
  • Total Questions: 119 Q&As
  • Updated on: Nov 12, 2024
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Free 1Z0-064 Exam Questions in PDF Format

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1Z0-064 Online Practice Questions and Answers

Questions 1

For which three problem categories does Automatic Database Diagnostic Monitor (ADDM) provide analysis and recommendations by default? (Choose three.)

A. for network stack-related bandwidth contention

B. for concurrency issues because of buffer busy problems

C. for high-load PL/SQL execution and compilation, and high-load Java usage

D. for application-level lock contention.

Show Answer

Questions 2

Examine the parameters set for your database instance: You upgrade your database to Oracle Database 12c. The database supports a mixed workload and works with different workloads at different times. You notice in an ADDM report that the shared pool is inadequately sized. You resize the shared pool by decreasing the sizes of other pools, which results in inadequate sizes for other pools. You want to automate the sizing of SGA components.

Which two actions should you perform? (Choose two.)

A. Set the SGA_TARGET parameter equal to SGA_MAX_SIZE.

B. Set the SGA_TARGET parameter to the sum of DB_CACHE_SIZE, SHARED_POOL, and LARGE_POOL_SIZE.

C. Set the MEMORY_MAX_TARGET parameter to the sum of DB_CACHE_SIZE, SHARED_POOL, and LARGE_POOL_SIZE.

D. Set DB_CACHE_SIZE, SHARED_POOL, and LARGE_POOL_SIZE to their minimum required values.

E. Set the PGA_AGGREGATE_TARGET parameter to 0 and the SGA_TARGET parameter to 1.5G.

Show Answer

Questions 3

Your database supports a DSS workload. In an application, a few complex queries that contain multiple functions and expressions are using materialized views. You notice that some queries are performing poorly because they are not benefiting from query rewrites.

Which three actions would you take to improve the performance of queries? (Choose three.)

A. Create a SQL Tuning Set (STS) and submit as input to the SQL Access Advisor to generate recommendations about query rewrite and fast refresh for materialized views.

B. Use the DBMS_MVIEW.EXPLAIN_REWRITE procedure to analyze why a query failed to rewrite.

C. Create an STS and submit as input to the SQL Performance Analyzer to get recommendations about improving the performance of queries.

D. Use the DBMS_ADVISOR.TUNE_MVIEW procedure to get recommendations about rewriting materialized views.

E. Use the DBMS_ADVISOR.QUICK_TUNE procedure to analyze queries based on the usage of query rewrite with materialized views.

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