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

Question

Options

• AAn ASM instance and database instances can coexist on the same hub node.
• BA database instance on a hub node can be a client of an ASM instance running on any leaf node.
• CA database instance on a hub node can be a client of an ASM instance running on any hub node.
• DA database instance on a leaf node can be a client of an ASM instance running on any hub node.
• EA database instance on a hub node uses an ASM instance as an I/O server when requesting I/O
• FASM Cluster File System (ASFS) can only be deployed on hub nodes.

• A
  78% (35)
• B
  2% (1)
• D
  13% (6)
• E
  7% (3)

Explanation

Architecturally Oracle Flex Cluster comprises of a Hub and Leaf architecture 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 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.

No community discussion yet for this question.