When installing Oracle Grid Infrastructure 12c, which three options exist for the configuration of Grid naming Service (GNS)?

Question

Options

• Ausing Shared GNS for the leaf nodes and local GNS for the hub nodes in a Flex Cluster
• Busing Shared GNS running on another cluster
• Cusing Shared GNS for the hub nodes and local GNS for the leaf nodes in a Flex Cluster
• Dcreation of a new GNS for this cluster
• Eusing DHCP to assign Node Virtual IP addresses for nodes in the cluster

• A
  11% (5)
• B
  72% (33)
• C
  17% (8)

Explanation

B: With dynamic configurations, you can configure GNS to provide name resolution for one cluster, or to advertise resolution for multiple clusters, so that a single GNS instance can perform name resolution for multiple registered clusters. This option is called shared GNS. D: With static configurations, no subdomain is delegated. A DNS administrator configures the GNS VIP to resolve to a name and address configured on the DNS, and a DNS administrator configures a SCAN name to resolve to three static addresses for the cluster. E: With automatic configurations, a DNS administrator delegates a domain on the DNS to be resolved through the GNS subdomain. Automatic configuration occurs in one of the following For IPv4 addresses, Oracle Clusterware assigns unique identifiers for each cluster member node interface allocated for Oracle Grid Infrastructure, and generates names using these identifiers within the subdomain delegated to GNS. A DHCP server assigns addresses to these interfaces, and GNS maintains address and name associations with the IPv4 addresses leased from the IPv4 DHCP pool. For IPv6 addresses, Oracle Clusterware automatically generates addresses with autoconfig. https://docs.oracle.com/database/121/CWADD/admin.htm#CWADD838

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