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READ Free Dumps For Oracle- 1z0-062





Question ID 2344

Which three factors influence the optimizer's choice of an execution plan?

Option A

A.    the optimizer_mode initialization parameter
 

Option B

B.    operating system (OS) statistics
 

Option C

C.    cardinality estimates
 

Option D

D.    object statistics in the data dictionary

 

Option E

E.    fixed baselines

Correct Answer A,B,C
Explanation


Question ID 2345

Examine the resources consumed by a database instance whose current Resource Manager plan is displayed.
SQL> SELECT name, active_sessions, queue_length,
Oracle 1z0-062 Exam
Consumed_cpu_time, cpu_waits, cpu_wait_time FROM v$rsrc_consumer_group;
NAMEACTIVE_SESSIONS QUEUE_LENGTH CONSUMED_CPU_WAITS CPU WAIT TIME
OLTP__ORDER__ENTRY1029690 467
6709
OTHES__GROUPS 0 059823664089
60425
SYS_GROUP 1 02420704 914
19540
DS.S_QUERIES4245946603004
55700
Which two statements are true?
 

Option A

A.    An attempt to start a new session by a user belonging to DSS_QUERIES fails with an error.
 

Option B

B.    An attempt to start a new session by a user belonging to OTHE_GROUPS fails with an error.
 

Option C

C.    The CPU_WAIT_TIME column indicates the total time that sessions in the consumer group
waited for the CPU due to resource management.
 

Option D

D.    The CPU_WAIT_TIME column indicates the total time that sessions in the consumer group
waited for the CPU due to I/O waits and latch or enqueue contention.
 

Option E

E.    A user belonging to the DSS__QUERIES resource consumer group can create a new session but the session will be queued.
 

Correct Answer C,E
Explanation

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