1z0-485 무료 덤프문제 온라인 액세스

Why is ASM High redundancy an important configuration choice when rolling Exadata Storage Server patching is planned?

• A.High redundancy speeds up ASM fast mirror resync when a cell is brought back online after patching.
• B.High redundancy forces ASM rebalance before allowing disks to be taken offline.
• C.Normal redundancy provides the same protection during rolling patching, so High redundancy is not important inthis case
• D.High redundancy protects from partner disk failure while a cell is offline being updated.

When should you use Hybrid Columnar Compression?

• A.on tables or partitions that have fairly static data
• B.on every table where Advanced Compression is not used
• C.always
• D.on large active tables where deeper compression is desired

Your customer has purchased their brand new Exadata Database Machine X3-2 Full rack to achieve 20-TB-per-hour backups on their 300 TB database.

You have been called to determine why they are not able to achieve even half that rate. Use the information in the image below to identify two reasons their backups are still slow.

• A.Exadata backups are being performed using RMAN over the 10 Gigabit Ethernet network.
• B.The Media Server to Tape Library transfer is causing a bottleneck.
• C.The number of tape drives is causing a bottleneck.
• D.The number of database servers is causing a bottleneck.
• E.LVM snapshots are not configured properly on the Database Server.

After migrating from legacy disk-based configuration, which three approaches would you use to evaluate the efficiency of Exadata Flash Cache?

• A.Check I/O latency on large I/O to Temp in AWR.
• B.Compare Optimized Physical Reads and Total Read Requests in Automatic Workload Repository (AWR).
• C.Review the Flash Hit rate via cellcli metrics.
• D.Evaluate the Smart Flash Logging efficiency metrics via CellCLI.
• E.Review the IOSTAT data that is gathered from each compute node by OS Watcher.

Which two statements describe correct network configuration for Exadata Database Machine?

• A.Database servers are deployed with three logical network interfaces configured: management, client access, and private.
• B.Oracle Clusterware communication is configured to use the management network.
• C.The InfiniBand network subnet manager runs on all database servers to achieve High Availability.
• D.Database connections to the SCAN listener route through the Ethernet switch in the Exadata rack.
• E.The InfiniBand network interfaces on Linux servers are configured using active-passive bonding.