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Share some Engineered Systems 1Z0-070 exam questions and answers below. 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 is made immediately from Smart Flash Cache for corruption on disk when the corresponding data is clean in the Smart Flash Cache. B. Hard disks are scanned every two weeks by default but only when disks are idle. C. Hard disks are scanned every two weeks by default in all situations. D. Disk repair is made immediately from Smart Flash Cache for corruption on disk when the corresponding data is dirty in the Smart Flash Cache. E. Disk repair may be made from another mirror copy if the corrupt area is part of a Normal or High Redundancy Disk Group. Answer: A,C,E
You plan to migrate a database supporting both DSS and OLTP workloads to your new X5 Database machine.The workloads contain many complex aggregating functions and expensive joins on large partitioned tables in the DSS workload and indexed access for OLTP workloads.Which three benefits accrue as a result of this migration? A. Superior compression capability designed specifically for OLTP workloads B. Columnar storage capability for data in row major data blocks that is held in flash cache C. Superior compression capability designed specifically for data warehouse tables D. Superior compression capability designed specifically for archival data E. Superior flash cache compression technique F. Cell offload processing for indexed-organized table access Answer: A,C,D
Your X6 Exadata Database Machine is running Oracle Database 12c, and has a large database with some very large tables supporting OLTP workloads.High-volume insert applications and high-volume update workloads access the same tables.You wish to compress these tables without causing unacceptable performance overheads to the OLTP workload.Which three are true regarding this requirement? A. Compression is performed on database servers when using row store compress advanced in an Exadata environment. B. Using row store compress advanced will compress the data more than if using column store compress for archieve low. C. The compression method column store compress for archive high is the worst fit for this requirement. D. Compression is performed on Exadata Storage Servers when using row store compress advanced in an Exadata environment. E. Using row store compress advanced will compress the data less than if using column store compress forquery low. Answer: A,B,D
Which two must be true for a Smart Scan to occur on a table? A. Sessions querying the table must set cell_offload_processing = true. B. It must be stored in an ASM diskgroup with a 4MByte AU size. C. It must be heap organized. D. It must be accessed using direct path reads. E. The table must not be compressed. Answer: A,D
Which two statements are true about Exadata X5 cell metrics and alerts? A. Cell alerts on each storage server are accumulated in memory by the CELLSRV process and stored on a filesystem-based repository. B. Cell metrics are written to disk every hour by default. C. Cell metrics on each storage server are accumulated in memory by the CELLSRV process and written to a filesystem-based repository. D. Cell alerts on each server are accumulated in memory by the MS process and stored on a filesystem-based repository. E. Cell alerts are written to disk every hour by default. Answer: B,D
Which three must be true for a Smart Scan to occur for a table? A. cell_offload_processing must be true in sessions issuing SQL statements that access the table. B. The query must be executed serially. C. The query must be executed in parallel. D. Direct path reads must be used at run time. E. The ASM diskgroup containing the table’s tablespace must have a 4 Mbyte AU size. F. The ASM diskgroup containing the table’s tablespace must have cell.smart_scan_capable set to true. Answer: A,D,F
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