Free Access Oracle.1z0-078.v2024-09-09.q29 Practice Test (Page 5)

Question 16

Examine this query and output:

Performance analysis revealed severe SQ enqueue contention on the SEQ1 sequence.
The SEQ1 sequence is incremented from all instances equally and is frequently used.
Which two statements should you execute to reduce SQ enqueue contention? (Choose two.)

A.alter sequence seal cache 10000;

B.alter sequence seql order;

C.exec sys.dbms shared pool.keep('SEQ1','Q'>

D.alter sequence seql noorder;

E.alter sequence seql keep;

Question 17

Which two statements are true concerning buffer states as shown in GV$BH.STATUS in Oracle 19c RAC? (Choose two.)

A.A CR image may get served from one instance to another to satisfy a read request.

B.A Pi block image may exist for a specific database block in only one instance.

C.An xcur block image may exist for a specific database block in only one instance.

D.An xcur image is not shipped to another instance until commits occur for updated rows on the block.

E.An xcur image is not downgraded to a SCUR image for shipping to another instance until commits occur for updated rows on the block.

Question 18

Which three statements are true about undo management in a RAC environment? (Choose three.)

A.It is necessary to assign a specific undo tablespace to a specific instance.

B.An instance that performs instance recovery can write to the undo tablespace of a failed instance.

C.A mixture of automatic undo management and manual undo management is supported within a RAC database.

D.You can dynamically assign a newly created undo tablespace to an instance.

E.In a policy-managed RAC database, an undo tablespace may automatically be created if OMF is enabled for the database.

Question 19

Which two statements are true concerning Oracle 19c Clusterware-managed application VIPs? (Choose two.)

A.An application VIP can be created with the crsccl utility.

B.An application VIP is created on the interconnect network by the crsccl utility.

C.If an application sends messages to be displayed and sets the display variable, then an application VIP is required.

D.Application VIPs do not fail over to surviving cluster nodes when the node hosting the VIP fails.

E.An application VIP is created on the default network by the appvipcfg utility.

Question 20

Which two statements are true about server categorization in Oracle 19c Clusterware? (Choose two.)

A.All server attributes used for categorization are administrator modifiable.

B.All server attributes that may be used to determine the server category are discovered automatically by Oracle Clusterware.

C.Different nodes in a cluster may belong to separate administrator-defined categories.

D.Server categories can only be used for nodes running an application server.

E.A server may be added to only one category using the crsctl utility.

F.All nodes in a cluster belong to the same Oracle-supplied category.

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