1z0-068 資格復習テキスト - オラクル Database 12C: RAC And Grid Infrastructure Administration

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試験番号：1z0-068 模擬試験
試験科目：「Oracle Database 12c: RAC and Grid Infrastructure Administration」
最近更新時間：2017-05-18
問題と解答：92

>> 1z0-068 模擬試験

 

NO.1 Examine this command to create a volume in the DATA disk group:
SQL>ALTER DISKGROUP DATA ADD VOLUME vo11 SIZE 10g HIGH
STRIPE_WIDTH 1M;
STRIPE_COLUMNS 1;
The DATA disk group has 50GB free space.
Which two are prerequisites for successful execution of this command?
A. The DATA disk group must not be created with external redundancy.
B. The DATA disk group must not contain any other volume.
C. The DATA disk group must have at least three failure groups.
D. The DATA disk group must have an AU size of 1MB.
E. COMAPTIBLE.ASM and COMPATIBLE.ADVM must be set to 11.2 or higher for the DATA disk group.
Answer: C,E

1z0-068 割引   
Explanation:
The compatibility parameters COMPATIBLE.ASM and COMPATIBLE.ADVM must be set to 11.2 or
higher for the disk group. A high redundancy disk group must contain at least three failure groups.

NO.2 Examine this output:
ASMCMD> volinfo - G ACFS -a
Diskgroup Name: ACFS
Volume Name: VOL1
Volume Device: /dev/asm/vol1-280
State: ENABLED
Size (MB): 2048
Resize Unit (MB): 32
Redundancy: MIRROR
Stripe Columns: 4
Stripe Width (K): 128
Usage: ACFS
Mountpath: /u01/app/grid/acfsmount
The ACFS disk group has 10 GB free space and the file system is currently mounted.
You execute this command to increase the volume size:
ASMCMD >volresize -G ACFS -s 3G VOL1
Which statement is true regarding the outcome?
A. It fails because the -f option is not specified.
B. It succeeds but the file system is automatically unmounted.
C. It fails because the file system must be unmounted before resizing.
D. Itfails because resizing a volume containing an ACFS file system must be performed using
ACFSUTIL.
E. It succeeds
Answer: D

1z0-068 認定   1z0-068 情報   
Explanation:
If there is an Oracle ACFS file system on the volume, then you cannot resize the volume with the
volresize command.
You must use the acfsutil size command, which also resizes the volume and file system.
References:https://docs.oracle.com/cd/E11882_01/server.112/e18951/asm_util007.htm#OSTMG94
769

NO.3 Which two components must always be defined or specified by an administrator to make an
application highly available using Oracle 12c Clusterware?
A. an application VIP
B. A Server Pool
C. an application resource
D. a resource dependency definition
E. a script agent
Answer: C,E

1z0-068 独学   
Explanation:
Oracle Clusterware manages applications when they are registered as resources with
OracleClusterware. Oracle
Clusterware has access to application-specific primitives that have the ability to start, stop, and
monitor a specific resource. Oracle Clusterware runs all resource-specific commands through an
entity called an agent.
Note: When initializing the agent framework, if any of the mandatory entry points are not provided,
then the agent framework invokes a script pointed to by the ACTION_SCRIPT resource attribute.
References:https://docs.oracle.com/database/121/CWADD/crschp.htm#CWADD92082

NO.4 Which two statements are true about initialization parameters for Clustered ASM instances?
A. The ASM_DISKGROUP parameter is optional.
B. A change to ASM_DISKSTRING requires a restart of all ASM instances for the change to take effect.
C. The default value of INSTANT_TYPE is ASM.
D. ASM_POWER_LIMIT controls the number of RDBMS instances that can access a disk group while it
is being rebalanced.
E. The maximum value of ASM_POWER_LIMIT is 1024.
Answer: A,E

1z0-068 返済   
Explanation:
C: The default value of theASM_DISKGROUPS parameter is a NULL string. If the parameter value is
NULL or is not specified, then ASM does not mount any disk groups.
E: The ASM_POWER_LIMIT initialization parameter specifies the default power for disk rebalancing in
a disk group.
The range of values is 0 to 1024.

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