1z0-068最も有効な質問と解答で勉強

2026年にOracle Database 12c: RAC and Grid Infrastructure Administratorへ挑戦するなら、再受験にかかる費用負担はできるだけ避けたいところです。Tech4Examの1z0-068練習問題で本番形式の問い方に慣れておけば、一度で結果を出すための土台づくりが進みます。

Oracle 1z0-068 試験概要:

Oracle 1z0-068 試験シラバストピック:

1z0-068試験のQ&A – 受験前に知っておきたいこと

Oracle Database 12c: RAC and Grid Infrastructure Administrator 認定 1z0-068 試験問題：

問題 #1

Examine this query and output:
SQL> select order_flag, cache_size, session_flag, keep_value,
2 from user_sequences where sequence_name = 'SEQ1';
O CACHE_SIZE S K
-- ------------------- -- --
Y 10 N N
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?

A. alter sequence seq1 keep;
B. exec sys.dbms_shared_pool.keep ('SEQ1', 'Q')
C. alter sequence seq1 order;
D. alter sequence seq1 noorder;
E. alter sequence seq1 cache 10000;

問題 #2

Which three statements are true about services when used with transparent application failover (TAF) for an administrator-managed RAC database?

A. TAF-enabled sessions fail over to a surviving instance accepting logins for the service.
B. TAF can restart a query or a transaction after failover.
C. The TAF settings for a client connections overrides any TAF settings in the service definition.
D. TAF PRECONNECT requires configuration for the service and in the client TNS entry.
E. TAF-settings for the service override TAF settings in TNS entry used by the client.

問題 #3

Which two statements are true regarding the configuration of ASM disk groups when installing Oracle Grid Infrastructure 12c?

A. If no ASM disk groups are specified during installation, then ASM instances are not started after the installation completes on any cluster node.
B. If ASM disk groups are configured for the Clusterware files, then ASM must be used for all databases on the cluster.
C. ASM disk groups used for voting files and OCR files require a quorum failgroup.
D. The installer permits the creation of a disk group to be used for the Recovery Area for the ASM instance.
E. The installer permits the creation of a disk group for use by the voting disks and OCR file.

問題 #4

Which three statements are true about using ADVM volumes and mounting ACFS file systems from leaf nodes in a Flex Cluster? (Choose three.)

A. ADVM volumes can be used to store the OCR and voting les to be used by a leaf node.
B. An ADVM volume cannot be used as the root file system on a leaf node.
C. To use ADVM volumes on a leaf node, the oraclesacfs, oracleoks, and oracleadvm drivers must be loaded on all hub nodes.
D. An ADVM volume cannot be used as a boot device on a leaf node.
E. Partitioning ADVM-managed volumes using fdisk or other utilities on a leaf node is not supported.
F. To use ADVM volumes, an ASM proxy instance is not required on a leaf node.

問題 #5

Examine the output of the asmcmd and srvct1 commands:

Then you execute this command:
$ srvctl relocate asm - currentnode host03 -targetnode host02
Which three statements are true regarding the execution of this command based on the output shown?

A. It fails because an ASM instance is not configured to run on HOST02.
B. It fails because the ASM instance has not been shut down first on HOST03.
C. It succeeds and starts an ASM instance on HOST02 but the ASM instance on HOST03 is not shut down until all connected clients disconnected.
D. It succeeds and starts an ASM instance on HOST02 and shuts down the ASM instance on HOST03.
E. It succeeds and 12c database instances connected to the ASM instance on HOST03 can be reconnected to the ASM instance on HOST01.
F. It succeeds and 12c database instances connected to the ASM instance on HOST03 can be reconnected to the ASM instance on HOST02.

解説：