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NO.1 Which three statements are true regarding Flex ASM on a four-node cluster consisting of three-
hub nodes and a leaf node?
A. A database instance on a hub node uses an ASM instance as an I/O server when requesting I/O to
diskgroups.
B. A database instance on a leaf node can be a client of an ASM instance running on any hub node.
C. An ASM instance and database instances can coexist on the same hub node.
D. ASM Cluster File System (ASFS) can only be deployed on hub nodes.
E. A database instance on a hub node can be a client of an ASM instance running on any hub node.
F. A database instance on a hub node canbe a client of an ASM instance running on any leaf node.
Answer: C,D,E

1z0-068 Flashcards   1z0-068 Format   
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

NO.2 Which three statements are true regarding ACFS snapshots in Oracle 12c ASM?
A. They can only be accessed whenthe file system is mounted.
B. They are contained in a directory on thesame volume as their parent file system.
C. They are always point-in-time copies of the parent file system.
D. They can be administered using ASMCM
E. You can create a snapshot from an existing snapshot.
F. All ACFS snapshot operations for all filesystem are serialized clusterwide.
Answer: A,E,F

1z0-068 Top   1z0-068 Braindumps   
Explanation:
All Oracle ACFS snapshot operations are serialized clusterwide in the kernel.
You chose to create a snapshot image on an existing snapshot group, select a snapshot group from
the existing snapshot group table (make sure you select a snapshot group that has not reached its
maximum limit of snapshot images).
Before you can access the files on a file system, you need to mount the file system.
References:
https://docs.oracle.com/database/121/OSTMG/GUID-5A3EF695-A795-4FEA-8BE2-
AF657BD2238C.htm#OSTMG33000
http://mysupport.netapp.com/NOW/public/eseries/amw/index.html#page/SANtricity_v11.20_Array
_Management_
Window_Help/create_PIT_image.html(Creating a Snapshot image 3rd point, 1st line).
https://docs.oracle.com/cd/E19455-01/805-7228/6j6q7ueup/index.html(1st paragraph, 1st line).