1Z0-054 Exam Questions
212 real 1Z0-054 exam questions with expert-verified answers and explanations. Page 5 of 5.
- Question #202
View Exhibit1 to examine the description of the CUSTOMERS table. You observed that optimizer selectivity is not accurate when the CUST_STATE_PROVINCE and COUNTRY_ID columns are use...
- Question #203
View Exhibit1 to examine the description of the CUSTOMERS table. The CUSTOMERS table has been updated heavily today. In a frequently used SQL statement, you notice that estimated r...
- Question #204
You are working on a decision support system (DSS). The index is available on the COUNTRY_ID column of the CUSTOMERS table. View the Exhibit and examine the parameter settings and...
- Question #205
View Exhibit1 and examine the indexes on the CUSTOMERS table. The statistics for the CUSTOMERS table have been updated recently by using the following command: SQL> EXEC DBMS_STATS...
- Question #206
You are working on an online transaction processing (OLTP) system. The CUST table in the SH schema was populated by direct load and after that it has gone through a lot of updates...
- Question #207
You find that in the Top 5 Timed Events section of the Automatic Workload Repository (AWR) report, the wait event buffer busy waits shows significantly high values.The database use...
- Question #208
While reviewing the Top 5 Timed Events section in the Automatic Workload Repository report, you notice that the db file scattered read and db file sequential read events appear in...
- Question #209
Which two inferences are correct about the CPU time and the wait time that appear in the Automatic Workload Repository AWR and Statspack reports in the Top 5 Event section? (Choose...
- Question #210
You notice that two wait events, Latch:cache buffer chains and Latch:cache buffer LRU chains, appear consistently in the Top 5 Timed Events for your database. Which two options des...
- Question #211
View the Exhibit and examine the details of the Top 5 Timed Events from an Automatic Workload Repository (AWR) report.What can be the three possible causes for the latch-related wa...
- Question #212
You query the V$SYSSTAT view and notice a significantly high value for the redo log space requests statistic. Which three components would you consider for further investigation ba...
- Question #213
As a DBA configuring a new instance, you want to run a representative workload on the instance and examine the relevant statistics to see whether the cache is underconfigured or ov...