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NEW QUESTION 51 In your Database, the TBS PERCENT USED parameter is set to 60 and the TBS PERCENT FREE parameter is set to 20. Which two storage-tiering actions might be automated when using information Lifecycle Management (ILM) to automate data movement? (Choose two.)

  • A. The movement of all segments to a target tablespace with a higher degree of compression, on a different storage tier, when the source tablespace exceeds TBS PERCENT USED
  • B. Setting the target tablespace to read-only
  • C. Setting the target tablespace offline
  • D. The movement of some blocks to a target tablespace with a lower degree of compression, on a different storage tier, when the source tablespace exceeds TBS PERCENT USED
  • E. The movement of some segments to a target tablespace with a higher degree of compression, on a different storage tier, when the source tablespace exceeds TBS PERCENT USED

Answer: B,E Explanation: Explanation The value for TBSPERCENTUSED specifies the percentage of the tablespace quota when a tablespace is considered full. The value for TBSPERCENTFREE specifies the targeted free percentage for the tablespace. When the percentage of the tablespace quota reaches the value of TBSPERCENTUSED, ADO begins to move data so that percent free of the tablespace quota approaches the value of TBSPERCENTFREE. This action by ADO is a best effort and not a guarantee.   NEW QUESTION 52 Your database supports an online transaction processing (OLTP) application. The application is undergoing some major schema changes, such as addition of new indexes and materialized views. You want to check the impact of these changes on workload performance. What should you use to achieve this?

  • A. SQL Tuning Advisor
  • B. SQL Performance Analyzer
  • C. SQL Access Advisor
  • D. Automatic Workload Repository compare reports
  • E. Database replay

Answer: B Explanation: Explanation/Reference: Explanation: You can use the SQL Performance Analyzer to analyze the SQL performance impact of any type of system change. Examples of common system changes include: • Database upgrades • Configuration changes to the operating system, hardware, or database • Database initialization parameter changes • Schema changes, such as adding new indexes or materialized views • Gathering optimizer statistics • SQL tuning actions, such as creating SQL profiles http://docs.oracle.com/cd/B2835901/server.111/b28318/intro.htm#CNCPT961   NEW QUESTION 53 You have installed two 64G flash devices to support the Database Smart Flash Cache feature on your database server that is running on Oracle Linux. You have set the DBSMARTFLASHFILE parameter: DBFLASHCACHEFILE= '/dev/flashdevice1 ',' /dev/flashdevice2' How should the DBFLASHCACHESIZE be configured to use both devices?

  • A. Set DBFLASHCACHE_ZISE = 64G.
  • B. DBFLASHCACHE_SIZE is automatically configured by the instance at startup.
  • C. Set DBFLASHCACHE_ZISE = 64G, 64G
  • D. Set DBFLASHCACHE_ZISE = 128G.

Answer: C Explanation: * Smart Flash Cache concept is not new in Oracle 12C - DB Smart Flash Cache in Oracle 1 1g. In this release Oracle has made changes related to both initialization parameters used by DB Smart Flash cache. Now you can define many files|devices and its sizes for "Database Smart Flash Cache" area. In previous releases only one file|device could be defined. DBFLASHCACHEFILE = /dev/sda, /dev/sdb, /dev/sdc DBFLASHCACHESIZE = 32G, 32G, 64G So above settings defines 3 devices which will be in use by "DB Smart Flash Cache" /dev/sda - size 32G /dev/sdb - size 32G /dev/sdc - size 64G New view V$FLASHFILESTAT - it's used to determine the cumulative latency and read counts of each file|device and compute the average latency   NEW QUESTION 54 ......