1Z0-902 無料問題集「Oracle Exadata Database Machine X8M Implementation Essentials」

（A）You must be physically present in the data center to start an Exadata Storage Server.

（B）-> start /SYSTEM/power

（C）-> start /SP/console

（D）-> start /System

（E）-> set /SYS power_state=ON

（F）-> start /SYS/power

（A）Use a snapshot-based backup of an Oracle Exadata Database Machine database server software.

（B）For high availability, system area can be on the first two disks and M.2 devices.

（C）The M.2 disk is hot pluggable and can be replaced when the power is on, but you will have to restore the system data manually.

（D）Backup of the Oracle Cluster Registry, which also contains Voting Disk information, is automatically maintained on the file system of the first database server.

（E）Backing up Exadata Storage Server Software is critical for restoration.

（A）12 consisting of seven griddisks each

（B）7 consisting of 12 griddisks each

（C）1 consisting of all 96 griddisks

（D）96 consisting of one griddisk each

（E）0 because the new griddisks will be added to the existing faiigroups

（A）When using shared grounding, the grounding resistance must not be greater than 10 ohms.

（B）Do not place anything on top of Oracle Exadata Rack.

（C）Do not install Oracle Exadata Rack in a location that is exposed to direct sunlight.

（D）Do not install Oracle Exadata Rack near a photocopy machine.

（E）Be sure that each grounding wire used for Oracle Exadata Rack is used exclusively for Oracle Exadata Rack.

（F）Do not use a flathead screwdriver to disconnect connector locks on LAN cables.

（A）2, 8, 7, 3, and 6

（B）2, 7, 8, and 6

（C）5, 8, 7, and 6

（D）4, 7, 8, 3, and 6

（E）1, 8, 7, 3 and 6

（A）Persistent Memory Commit Accelerator helps to further reduce redo log write latency by using Persistent Memory and Remote Direct Memory Access (RDMA).

（B）Persistent Memory Commit Accelerator tracks changes to Persistent Memory Data Accelerator to ensure duplicate blocks are not written to Flash.

（C）Persistent Memory Commit Accelerator reduces redo log write latency by using Persistent Memory and RDMA before flushing to Flash then disk.

（D）Persistent Memory Commit Accelerator copies redo log data from disk for faster redo apply on Data Guard Standby Databases.

（E）Persistent Memory Commit Accelerator contains logging information from all tiers of the software stack for rapid triage and diagnostics.

（A）The EF storage server contains 8 x 6.4 TB PCIe flash cards and 756 GB Persistent Memory.

（B）The HC storage server contains 12 x 18 TB hard disks, 4 x 6.4 TB PCIe flash cards, and 1.5 TB Persistent Memory.

（C）The XT storage server is an all-disk storage server with no flash, containing 12 x 18 TB hard disks, and 1.5 TB Persistent Memory.

（D）The EF storage server contains 8 x 6.4 TB PCIe flash cards.

（E）The EF storage server contains 8 x 6.4 TB PCIe flash cards, and can be upgraded with 4 more for a total of 12.

（A）# /opt/oracle.SupportTools/exachk/exachk -from <Fridays_Date>_17:00:00 -to <Sundays_Date>_23:59:00

（B）# /opt/oracle.ExaWatcher/GetExaWatcherResults.sh -from <Fridays_Date>_17:00:00 -to <Sundays_Date>_23:59:00

（C）# /opt/oracle.SupportTools/ibdiagtools/netcheck/runDiagnostics.pm -from <Fridays_Date>_17:00:00 -to <Sundays_Date>_23:59:00

（D）$ ${ORACLE_HOME}/suptools/tfa/release/tfa_home/bin/tfact1 -from <Fridays_Date>_17:00:00 -to <Sundays_Date>_23:59:00

（A）PMEM Pool cache Read Hits in the Cache Sizes portion of the Report Summary

（B）PMEM Cache section within Exadata Smart Statistics

（C）cell PMEM cache Read Hits in the Database IOs portion of the Performance Summary

（D）PMEM Pool Misses in the Exadata Outlier Summary

（E）PMEM Cache section within Memory Statistics