1Z0-068 1Z0-068 Dumps 1Z0-068 Braindumps 1Z0-068 Real Questions 1Z0-068 Practice Test 1Z0-068 dumps free Oracle Oracle Database 12c: RAC and Grid Infrastructure Administration
Question: 142 Which two statements are true about Flex ASM in a Flex Cluster? A. Oracle databases from releases older than 12c cannot use Flex ASM. B. ACFS may only be configured on a hub node running an ASM instance. C. Instances of ASM-based databases on hosts that have no ASM instance running, require Flex ASM. D. Flex ASM requires that I/Os requests be sent through an ASM Proxy Instance, regardless of database and ASM instance placement in a cluster. E. Hub nodes with connections from multiple leaf nodes must run an ASM instance. Answer: BE B: Oracle Automatic Storage Management Cluster File System (Oracle ACFS) can only be run on the hub nodes, not the leaf nodes. 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). E: 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. Incorrect Answers: A: The Oracle Flex ASM can be implemented in two ways: Pure 12c Flex ASM (Same Version) Both Grid Infrastructure (GI) and Database running on Oracle 12c Pre Oracle 12c Mixed (Different Versions) As normal ASM instance will run on each node with Flex configuration to support pre 12c database. The compatibility parameter of ASM disk group is used to manage the compatibility of between and among database instances. Advantage of this approach is that if an Oracle 12c database instance loses connectivity with an ASM instance, then the database connections will failover to another ASM instance on a different server. This failover is achieved by setting the cardinality to all. References: Question: 143 A directory +DATA/ORCL/DATAFILE/USERS exists in ASM.
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- Fall '20
- Oracle Database, Computer file, Automatic Storage Management