Online Access Free 1z1-070 Practice Test

Which three statements are true about Automatic Hard Disk Scrubbing and repair on high-capacity storage servers in an X5 Database Machine?

• A.Disk repair may be made from another mirror copy if the corrupt area is part of a Normal or High Redundancy Disk Group.
• B.Disk repair is made immediately from Smart Flash Cache for corruption on disk when the corresponding data is dirty in the Smart Flash Cache.
• C.Disk repair is made immediately from Smart Flash Cache for corruption on disk when the corresponding data is clean in the Smart Flash Cache.
• D.Hard disks are scanned every two weeks by default in all situations.
• E.Hard disks are scanned every two weeks by default but only when disks are idle.

Identify three valid reasons for creating multiple griddisks on a single harddisk-based celldisk.

• A.to enable disk mirroring for the system area
• B.to implement storage realms so that storage that can be reserved for specific resource consumer groups in the same database
• C.to implement storage realms so that storage that can be reserved for specific Grid Infrastructure clusters
• D.to segregate storage into multiple pools with different performance characteristics
• E.to implement storage realms so that storage can be reserved for specific databases
• F.to enable the creation of normal or high redundancy ASM diskgroups

You want to use Enterprise Manager to monitor the power distribution units (PDUs) in your Database Machine.
On which three factors do the appropriate alarm thresholds for the plug-in depend?

• A.Database Machine server models for both the storage servers and database servers in the rack
• B.distance between racks for multirack configurations
• C.disk types within the expansion racks
• D.Database Machine rack size and variants
• E.disk types within the storage servers
• F.voltage and phase type of the PDUs

Which three are true concerning Hybrid Columnar Compression (HCC) deployed on Exadata storage?

• A.Rows residing in HCC compressed segments, are always self- contained in a single compression unit.
• B.HCC data is never cached in the Exadata Smart Flash Cache.
• C.Row-level locks are supported on HCC compressed data.
• D.By default, decompression is performed by Exadata Storage Servers.
• E.Rows residing in HCC compressed segments, are always self- contained in a single database block.
• F.HCC can be used only when the Exadata Smart Flash Cache is configured in Write-Through mode.

You wish to determine if the I/O resource management plan that you created has helped improve the performance of OLTP category I/Os on your X6 Exadata Database Machine.
You decide to examine the relevant metrics on all the cells, to see whether the I/O rate has improved for this category compared to last week, and whether waits and wait time have been reduced.
You issue this command on the first cell:

You examine the output from the first cell which contains:

Which two sets of metrics would you use to determine whether the I/O performance has improved for the OLTP category for the duration of the one-hour measurement period?

• A.CT_IO_WT_SM, CT_IO_WT_LG, CT_IO_WT_SM_RQ, and CT_IO_WT_LG_RQ
• B.CT_IO_RQ_SM, CT_IO_RQ_LG, CT_IO_RQ_SM_SEC, and CT_IO_RQ_LG_SEC
• C.CT_IO_UTIL_SM and CT_IO_UTIL_LG
• D.CT_IO_RQ_SM_SEC and CT_IO_RQ_LG_SEC