最新的12c認證 1z1-068考試題庫

問題1

Which two statements are true about High Availability NFS (HANFS)? (Choose two.)

A. HANFS performance depends on the characteristics of the underlying ASM disks.

B. HANFS provides high availability in case of cluster node failure.

C. NFS client requests are distributed by DNS in a round-robin fashion to the cluster nodes that export the NFS filesystem.

D. HANFS does not depend on NFS services provided by the underlying operating system.

E. HANFS provides high availability in case of an NFS client failure.

正確答案: A,E

問題2

Which two statements are true regarding ASM Dynamic Volume manager (ADVM)?

A. An ADVM volume is individually named and can contain only one file system.

B. Only one ADVM volume can be created in an ASM disk group.

C. File systems contained in ADVM volumes may only contain database files.

D. ADVM extends ASM by providing a device driver interface to storage backed by an ASM disk group.

E. To create an ADVM volume, disk group attributes COMAPTIBLE.ASM and COMPATIBLE.ADVM must be minimally set to 12.1.

正確答案: A,D

說明：（僅 VCESoft 成員可見）

問題3

A directory +DATA/ORCL/DATAFILE/USERS exists in ASM.
USERS is a user created directory; ORCL and DATAFILE are system generated directories.
Which two statements are true about user-created directories?

A. You cannot drop a directory containing aliases unless you delete the aliases first.

B. You can create subdirectories under the USERS directory.

C. You cannot create a user-defined directory at the root (+) level.

D. You cannot rename a user-created subdirectory.

E. You cannot create a nested subdirectory /USER1/2014 under USERS with a single CREATE DIRETORY command even if directory USER1 doesn't exist.

正確答案: C,E

問題4

You must replace a failed disk that was dropped from a disk group.
You want the rebalance operation to occur with minimal performance impact.
Which two options exist to achieve this? (Choose two.)

A. Make sure that the ASM_POWER_LIMIT parameter is set to 1 before rebalancing the disk group.

B. Increase the value of the DISK_REPAIR_TIME attribute for the disk group.

C. Decrease the value of the DISK_REPAIR_TIME attribute for the disk group.

D. Set the POWER clause to 1 in the ALTER DISKGROUP command.

E. Use the WAIT clause with the ALTER DISKGROUP command.

正確答案: A,B

問題5

Examine this command and output:

Examine this list of commands:
1. srvct1 convert db -db ron -dbtype rac -node o16n1
2. srvct1 convert db -db ron -dbtype raconenode -node 016n1
3. srvct1 add instance -db ron -instance ron_1 -node 016n1
4. srvct1 add instance -db ron -in5tance ron_2 -node 016n2
5. srvct1 start instance -db ron -instance ron_1
6. srvct1 start instance -db ron -instance ron_2
Currently, there is an instance of database ron running on o16n1.
You want to convert ron to a RAC database and make all instances available.
Identify the commands required, in the correct order, to accomplish this.

A. 2, 4, 5 and 6

B. 1, 4 and 6

C. 1, 4, 5 and 6

D. 1, 3, 4, 5 and 6

E. 2, 3, 4, 5 and 6

F. 2, 4 and 6

正確答案: D

問題6

You plan to apply a patchset to a RAC database running on a two-node cluster.
The cluster has this configuration:
* Grid infrastructure release 12.1.0.1.0
* RAC database release 12.1.0.1.0
* All software installed on local file systems
* The database is deployed on ASM disk groups.
Examine this list of possible tasks (see exhibit).
Exhibit:

Identify the required tasks in the correct order to apply the patchset with the least amount of down time.

A. 3, 2, 5 and 8

B. 1, 3, 2, 5 and 8

C. 3, 2, 6 and 8

D. 1, 2, 3, 5 and 8

E. 3, 2, 5, 2 and 8

正確答案: B

問題7

Which two utilities support the "what-if" command evaluation?

A. srvctl

B. crsctl

C. ocrconfig

D. asmcmd

E. oifcfg

正確答案: A,B

說明：（僅 VCESoft 成員可見）

問題8

Which two statements are true about resources defined by an administrator and registered with Oracle 12c Clusterware for high availability?

A. An administrator-managed resource can be started manually using crsctl.

B. A policy-managed resource can be started manually using srvctl.

C. Resource dependencies are automatically set when using a policy-managed resource.

D. A policy-managed resource can be started manually using crsctl.

E. The action script is automatically set when using a policy-managed resource.

F. An administrator-managed resource can be started manually using srvctl.

正確答案: D,F

說明：（僅 VCESoft 成員可見）

問題9

Which two statements are tuning recommendations for RAC database? (Choose two.)

A. Use sequences with CACHE and NOORDER, if possible.

B. Use Locally Managed Tablespaces with autoallocate.

C. Set PARALLEL_DEGREE_POLICY=AUTO to enable automatic Parallel Statement Queueing.

D. Set PARALLEL_DEGREE_POLICY=AUTO to enable In Memory Parallel Query.

E. Use Locally Managed Tablespaces with large uniform extent sizes.

F. Use sequences with CACHE and ORDER, if possible.

正確答案: A,B

問題10

Which three statements are true about ASM Cloud File System (ACFS) auditing?

A. acfsutil audit purge can be run by an audit manager.

B. Audit information gathered by each cluster node can be consolidated into the unified ACFS audit trail.

C. acfsutil audit init must be run by a system administrator.

D. acfsutil audit archive must be used to archive audit files that are larger than 10MB.

E. acfsutil audit read marks audit files to indicate that it is safe to purge them.

正確答案: A,C,E

說明：（僅 VCESoft 成員可見）

問題11

You administer a three-instance, policy-managed, multitenant RAC database CDB1 with three PDBs: PDB_1, PDB_2, and PDB_3.
You want to drop PDB_3.
Which two statements are true? (Choose two.)

A. PDB_3 must be open READ ONLY in all CDB1 instances.

B. CDB1 must be open in restricted mode on all cluster nodes.

C. PDB_3 must be closed on all CDB1 instances.

D. Manually created services for PDB_3 are removed automatically from the OCR when dropping PDB_3.

E. Manually created services for PDB_3 are not removed automatically from the OCR when dropping PDB_3.

正確答案: C,D

問題12

A Java application will be deployed, and you must configure a RAC database to support highly available connections.
The application will use the Universal Connection Pool (UCP), and Fast Connection Failover (FCF) must be enabled.
Which two statements are true? (Choose two.)

A. The application may use the JDBC thin driver.

B. The ons.jar file must be present in the CLASSPATH.

C. The ONS daemon must be started on the middle tier and client machines to enable FCF.

D. You must configure TAF, either on the client or for the service.

E. The ONS daemon must be started on the middle tier running the Java application.

正確答案: A,C

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