PassTestの1z1-084問題集はPDF版、Desktop Test Engine、Online Test Engineの3つの形式から学習スタイルに合わせて選べます。印刷して手元で確認したい方も、Oracle Database 19c Performance and Tuning Managementの本番環境を再現した模擬試験で腕試ししたい方も、自分に合った方法で57問の演習に取り組めます。

Oracle 1z1-084 試験概要:

Oracle 1z1-084 試験シラバストピック:

Oracle Database 19c Performance and Tuning Managementの疑問にお答えします

Oracle Database 19c Performance and Tuning Management 認定 1z1-084 試験問題：

問題 #1

SGA_TARGET and PGA_AGGREGATE_TARGET are configured to nonzero values.
MEMORY_target is then set to a nonzero value but memory_MAX_TARGET is not set.
Which two statements are true?

A.

B.

C.

D.

E.

F.

G.

問題 #2

Examine this statement and output:

Which two situations can trigger this error?

A. The syntax is incomplete.
B. The user lacks the required privileges to execute the DBMS WORKLOAD CAPTURE package or the directory.
C. There is a file in the capture directory.
D. The instance is unable to access the capture directory.
E. The capture directory is part of the root file system.

問題 #3

Which three statements are true about tuning dimensions and details of v$sys_time_model and DB time?

A. DB Time accounts for all time used by background processes and user sessions.
B. Systems in which CPU time is dominant need more tuning that those in which WAIT TIME is dominant.
C. Statspack cannot account for high CPU time when CPU TIME is a Top 10 event in DB time. When CPU time is high, SQL tuning may improve performance.
D. When WAIT TIME is high, instance tuning may improve performance.
E. Parse Time Elapsed accounts for successful soft and hard parse operations only.
F. The proportion of WAIT TIME to CPU TIME always increases with increased system load.

問題 #4

Examine this command:

What is the maximum number of baselines generated by this command that you can have at any given time?

A. 3
B. 52
C. 5
D. 1

問題 #5

Which three statements are true about using the in Memory (IM) column store?

A. It can improve OLTP workload performance by avoiding the use of indexes.
B. It does not improve performance for queries that use join groups on columns from different tables.
C. It does not improve performance for queries using user-defined virtual column results.
D. It does not require all database data to fit in memory to improve query performance.
E. It improves performance for queries joining several tables using bloom filter joins.
F. It does not improve performance for queries using cached results of function evaluations on columns from the same table.

解説：