Oracle 1z0-068 Exam Questions – (Dec-2017 dumps)

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Version: 9.0
Question: 1

Which three statements are true about the services created when the DBCA is used to create a RAC database?

A. They can be policy managed for a multitenant database.
B. Singleton servicesare not permitted for multitenant databases.
C. A server-pool must be created with SRVCTL before creating a policy-managed RAC database that uses that server-pool for a service.
D. Policy-managed services specified for a database allow the creation of a new server pool using DBCA.
E. They can be administrator managed for a multitenant database.

Answer: B,C,E

Explanation:
C: Cluster Managed Services are no longer managed through DBCA. Instead, use the Cluster Managed Services page in Oracle Enterprise Manager Cloud Control, if available, or SRVCTL.
E: During installation, if you select a multitenant container database (CDB), and configure pluggable databases (PDBs), then Oracle recommends that you add services to the PDBs after installation.
IncorrectAnswers:
D: Cluster Managed Services are no longer managed through DBCA. Instead, use the Cluster Managed Services page in Oracle Enterprise Manager Cloud Control, if available, or SRVCTL.
References:https://docs.oracle.com/database/121/RIWIN/dbcacrea.htm#RIWIN1320

Question: 2

Which three statements are true about the Global Enqueue Service and Global Enqueue Service (GES) Resources in Oracle 12c RAC?

A. The mastering instance for a GES resource is never the same as the instance that owns the enqueue in exclusive mode.
B. The LMD0 runs only on the instance that masters all GES resources.
C. When a GES resource is dequeued, converters if any exist for that resource, are processed before any waiter for that resource.
D. The LMD0 process on the requesting instance communicates with the LMD0 process on the mastering instance if they are not the same instance.
E. The mastering instance for a GES resource is never the same as the instance that owns an enqueue in shared mode.
F. An LMD0 process runs on all instances.
G. The foreground process on the requesting instance communicates with the LMD0 process on the mastering instance if they are not the same instance.

Answer: A,F,G

Question: 3

New Updated 1z0-068 Exam Questions 1z0-068 PDF dumps 1z0-068 practice exam dumps: https://www.dumpsschool.com/1z0-068-exam-dumps.html (91 Questions)

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. COMAPTIBLE.ASM and COMPATIBLE.ADVM must be set to 11.2 or higher for the DATA disk group.
B. The DATA disk group must not be created with external redundancy.
C. The DATA disk group must not contain any other volume.
D. The DATA disk group must have at least three failure groups.
E. The DATA disk group must have an AU size of 1MB.

Answer: A,D

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.
References:

Question: 4

Which two statements are true about v$asm – views in clustered environment?

A. They exist both in ASM and RDBMS instances, and display the same output.
B. Their names can be seen in dict when connected to an ASM instance.
C. Their names can be seen in v$fixed_table when connected to an instance of any type that is started.
D. They exist in both in ASM and RDBSM instances, but they can display different outputs depending on the instance type.
E. gv$asm_attribute can be used to display the ASM_POWER_LIMIT attribute of all ASM instances in the cluster.

Answer: B,D

Explanation:
You can use the views to obtain information about Oracle Automatic Storage Management Cluster File System (OracleACFS). These views are accessible from the Oracle ASM instance.
References:https://docs.oracle.com/cd/E11882_01/server.112/e18951/asmviews.htm#OSTMG94187

Question: 5

Which two statements are true about ASM default templates?

A. Default data file templates are only created by ASM when a normal redundancy disk group is created.
B. Default template settings for redundancy depends on the disk group redundancy.
C. Default templates for a disk group can be modified.
D. Default template setting for striping depends on disk group redundancy.
E. Templates may be shared across disk groups.

Answer: A,B

Explanation:
Default template settings depend on the diskgroup type. The default template for data files for a normal redundancy.
References:

Question: 6

Which three statements are true regarding Flex ASM on a four-node cluster consisting of three-hub nodes and a leaf node?

A. An ASM instance and database instances can coexist on the same hub node.
B. A database instance on a hub node canbe a client of an ASM instance running on any leaf node.
C. A database instance on a hub node can be a client of an ASM instance running on any hub node.
D. A database instance on a leaf node can be a client of an ASM instance running on any hub node.
E. A database instance on a hub node uses an ASM instance as an I/O server when requesting I/O to diskgroups.
F. ASM Cluster File System (ASFS) can only be deployed on hub nodes.

Answer: A,C,F

Explanation:
Architecturally Oracle Flex Cluster comprises of a Hub and Leafarchitecture where in only the Hub nodes will only have direct access to Oracle Cluster Registry (OCR) and Voting Disk (VD). However application can access the database via Leaf nodes without ASM instance NOT running on Leaf nodes. The connection to the database is through Hub making it transparent for the application.
Note:
Hub Nodes are connected among them via private network and have direct access to the shared storage just like previous versions. These nodes are the ones that access the Oracle Cluster Registry (OCR) and Voting Disk (VD) directly.
Leaf Nodes are lighter and are not connected among them, neither accesses the shared storage like the Hub Nodes. Each Leaf Node communicates with the Hub Node that is attached to, and it is connected to the cluster via the Hub Node that is linked to.
References:http://www.oracle.com/technetwork/articles/database/flexasm-flexcluster-benefits-odb12c-2177371.html