1Z0-536 V9.02_formatted - GRATIS EXAM

1Z0-536 V9.02_formatted

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Exam : 1Z0-536

Title : Oracle Exadata 11g

Essentials

Version : V9.02

Exam A

QUESTION 1What model of the Exadata Database Machine come with 3 Infiniband switches?

A. Quarter Rack of X2-2B. Half Rack of X2-2C. Full Rack of X2-2D. All models

Correct Answer: CBCSection: (none)Explanation

Explanation/Reference:

QUESTION 2Which types of data are most likely to be cached In the Exadata SmartFlash Cache?

A. Results of random reads.B. Results of table scans.C. Write to a mirrorD. Redo dataE. All data is cached In the Flash Cache

Correct Answer: ASection: (none)Explanation


QUESTION 3Your customer wants to use Hybrid Columnar Compression to get maximum compression on their data. Whichoption represents a best practice for achieving this goal?

A. Load compressed files with Direct Path loadingB. Sort incoming data on a column with a low cardinalityC. Use DBFS and external flies to load the dataD. Use Data Pump to load data

Correct Answer: CSection: (none)Explanation


QUESTION 4Which statement would you make about sharing I/O resources in an Exadata environment?

A. You can manage workloads within a database with Database Resource Manager.B. You can manage workloads across multiple databases with Database Resource Manager.C. You can manage workloads within a database with 10 Resource Manager.

D. You cannot manage workloads across multiple databases.



QUESTION 5How do you back up the software used on an Exadata storage cell?

A. You use RMAN.B. You back up the software files using an operating system method.C. You do a complete copy of their system storage area.D. You do not need to backup this software, as there is an automated recovery mechanism built into each cell.

Correct Answer: DSection: (none)Explanation


QUESTION 6Which statement properly describes potential allocation for a grid disk?


A. A grid disk must use all of a cell disk.B. A grid disk can only use portions of a cell disk across all cells.C. A grid disk can use portions of a cell disk on a subset of cells.D. A grid disk can span multiple Exadata Storage Server ceils.



QUESTION 7Which resource plan is evaluated first by the I/O Resource Manager?

A. Storage planB. Category planC. Inter-database planD. Intra-database plan

Correct Answer: BSection: (none)Explanation


QUESTION 8What does the role attribute of a DB plan Indicate?

A. The role specified for the categoryB. The role specified for the userC. The role specified In a Data Guard environmentD. The role specified for the application



QUESTION 9If a hard drive is removed from a storage cell, what must you do?

A. Nothing.B. The cell must be rebooted.C. You must alter ASM to alert ItD. You must recreate any grid disks that use the drive.



QUESTION 10Your customer has designated a number of database objects to be kept persistently in the Exadata SmartFlash Cache. What happens if the total size of these objects is greater than 80% of the size of the availableExadata Smart Flash Cache?

A. NothingB. Exadata Smart Flash Cache expands the allocation to hold the objects.C. Not all objects will be stored in Exadata Smart Flash Cache.D. Overall performance is increased as more objects fit into Exadata Smart Flash Cache.



QUESTION 11Which three attributes are likely to result in data being cached in the Exadata Smart Flash Cache?

A. CELL_FLASH_CACHE attribute on the data objectB. CACHE hint In the SQL statementC. Data from a table scanD. Small data less than 128 KBsE. Control file I/Os

Correct Answer: ABDSection: (none)Explanation


QUESTION 12You are going to set up grid disks for your customer. Which is the best practice to use when defining grid disksfor a Storage Server?

A. Create a grid disk for every table space.B. Create two grid disks, one for data and one for recovery.C. Create two grid disks, one for tables and one for Indexes.D. Create a grid disk for each table.



QUESTION 13When using IORM, which statement accurately describes when redo log file writes take place?

A. Based on the priority of the userB. ImmediatelyC. Based on the resource group of the userD. Based on the intradatabase resource plan



QUESTION 14Your customer asks you what advantage Offload processing gives to the Exadata Storage Server.How can you explain it best?

A. Offload processing allows PL/SQL functions to be executed on the Exadata Storage Server.B. Offload processing aggregates SQL processing into higher level functions, which are shipped to the

Exadata Storage Server.C. Offload processing moves some processing closer to the stored data, which allows the Exadata Storage

Server to return only the rows and columns requested.D. Offload processing is just marketing - it provides no real advantage.



QUESTION 15How is cell-to-cell communication implemented in a Oracle Exadata Database Machine?

A. Through flash cache.B. Through the Infiniband switch.C. Through onboard memory.D. There is never any cell-to-cell communication in an Exadata Storage Server.



QUESTION 16Your customer has estimated that they will need to store 25 TBs of uncompressed data, and they want to useHigh Performance disks in their Exadata Storage Server. Which size Oracle Exadata Database Machine shouldyou propose to handle this amount of data without compression?

A. A Quarter Rack, with 20 TB storage.B. A Half Rack, with 50 TB raw storage.C. A Full Rack, with 100 TB of raw storage.D. You should try to talk your customer into using High Capacity disk.



QUESTION 17What benefit is provided by column filtering?A. The Exadata Storage Server can select rows based on columnvalues listed in a SQL predicate

A. Storage indexes are built on columns for use in filteringB. Only necessary columns are returned to the database serverC. Column filtering is a marketing term, not a real benefit



QUESTION 18

Striping data across disk is performed with what software?

A. CELLSRVB. IORMC. OELD. ASM



QUESTION 19How many IP addresses you need to assign for each Exadata storage cell?A. 1

A. 2B. 3C. 4D. 0



QUESTION 20Your customer's high priority applications are throughput-sensitive. Which feature of the Oracle ExadataDatabase Machine Is crucial to servicing these high priority applications?

A. Flash CacheB. IORMC. ASMD. RAC



QUESTION 21How much flash memory comes with an Oracle Exadata Database Machine Full Rack?

A. 384TBB. 1TBC. 2.6TBD. 5.3TB

Correct Answer: DSection: (none)

Explanation


QUESTION 22Which Exadata Storage Server users can edit Exadata configuration files?

A. RootB. celladminC. cellmonitorD. celldi



QUESTION 23You have completed initial installation of an Exadata Database Machine. Which type of components can youadd after installation?

A. Hardware in the database servers.B. Software in the database servers.C. Software in the Exadata Storage Server.D. Hardware in the Exadata Storage Server.



QUESTION 24Which is true of a Storage Index in the Oracle Exadata Database Machine?

A. Stores minimum and maximum values for a 1 MB regionB. Can be used to eliminate cells from queriesC. Is a standard database indexD. Persists through a cell reboot



QUESTION 25Which types of prioritization does I/O Resource Manager do automatically?

A. Production over Test and OLTP over maintenance

B. OLTP over maintenance and control-file I/Os over database writesC. Apply operations over read-only queries on standby databases and control-file I/Os over database writesD. Apply operations over read-only queries on standby databases and OLTP over maintenance



QUESTION 26Your customer wants to migrate their current large Oracle database to a Oracle Exadata Database Machine.They are currently running Oracle 10.1.0.3 on Linux. Which method could they use to migrate with the leastamount of downtime?

A. Use transportable table spaces to migrate data to the new environment.B. Use Data Guard logical standby to reproduce data on the new system.C. Use Data Guard physical standby to migrate data to the new system.D. Use ASM to rebalance data from the old system to the new system.E. Use Data Pump to move data to the new system.



QUESTION 27Which statement about the Database Smart Cache and the Exadata Smart Flash Cache Is true?

A. There is no difference - they are different names for the same thing.B. The Database Smart Cache can only work on Oracle Exadata Database Machines.C. The Exadata Flash Cache can only work on Oracle Exadata Database Machines.D. You can pin tables into the Database Smart Cache.



QUESTION 28How many IORMPLANs can be active at the same time?

A. One per Exadata cellB. One per Exadata Storage ServerC. One per DBRM resource groupD. One per IORM category



QUESTION 29What task must you perform to enable Intradatabase resource management?

A. Set the IORM parameter to TRUEB. Manually set the RESOURCE_MANAGER_PLAN parameter with the ALTER SYSTEM statementC. Activate IORMPLAN on each of the target Exadata cellsD. Activate IORMPLAN for ASM



QUESTION 30You are getting ready to prepare your client to obtain the maximum benefit from using the Sun Oracle DatabaseServer. Which features can reduce the amount of I/O processed and are unique to the Exadata StorageServer?

A. PartitioningB. ParallelismC. Storage Indexes and Predicate FilteringD. Database Resource Manager



QUESTION 31Under which condition(s) does IORM manage Exadata cell resources?

A. All the timeB. When there are IORM resource plans In placeC. When there are more than one resource group for a cellD. When I/O requests start to saturate the cellE. When I/O requests start to saturate the cell and thereis more than one resource group defined for the cell

Correct Answer: ESection: (none)Explanation


QUESTION 32How much flash memory comes with each Exadata Storage cell?

A. 24 GBB. 72 GBC. 256 GBD. 384 GB



QUESTION 33What happens if you bring a disk in an Exadata Storage Server back online before the disk_repair_timeexpires?

A. You only have to drop and add the disk.B. You have to drop and add the disk and then rebalance data onto it.C. Nothing.D. Fast resynch on the disk happens automatically.



QUESTION 34Your customer is worried that as they need to upgrade their Exadata Database Machine from a Quarter Rack toa Half Rack to a Full Rack, the overall performance of the Machine will diminish.How should you address this concern?

A. Tell the customer that when they need more storage, the underlying hardware will be faster so they will nothave to worry.

B. Tell the customer they can always move from SATA storage to SAS storage for better performance.C. Tell the customer that some performance degradation is inevitable in any architecture.D. Tell the customer that the balanced hardware configuration of the Exadata Storage Server prevents this

from happening.

Correct Answer: ADSection: (none)Explanation


QUESTION 35Which assortment of disks on a cell is created by issuing the CREATE CELLDISK ALL command?

A. 12 Flash-based cell disks, 12 disk-based cell disksB. 16 Flash-based cell disks, 16 disk-based cell disksC. 16 Flash-based cell disks, 12 disk-based cell disksD. 12 Flash-based cell disks, 16 disk-based cell disksE. No Flash-based cell disks, 12 disk-based cell disks



QUESTION 36Which three tasks are performed by the Management Server (part of Exadata Storage Server Software)?

A. Updates to the Exadata Server softwareB. Executing distributed CU commandsC. Executing CELLCLID. Interaction with the EM Exadata plug-in

Correct Answer: BCDSection: (none)Explanation


QUESTION 37Which three types of classification can you use to prioritize I/O requests withIORM?

A. Based on Database Manager consumer_groupB. Based on an Intradatabase PlanC. Based on a Category PlanD. Based on the priority of the background process

Correct Answer: ABCSection: (none)Explanation

Explanation/Reference:Can you use Active Data Guard effectively between a Oracle Exadata Database Machine and a standarddatabase server?A. Yes, but only If you use Hybrid Columnar Compression. B. Yes, but tables or paritions that use HybridColumnar Compression will not be immediately accessible. C. Yes, but only if you do not allow Smart Scanswith the Oracle Exadata Database Machine.D. No.Answer: B


QUESTION 38Your customer does not think that offload processing will give them any advantage, since they are using onlypackaged applications. How do you address this issue?

A. You don't - this customer is not appropriate for the Oracle Exadata Database Machine. Move on.B. You explain that offload processing works the same SQL in packaged applications as it does in ad hoc

queries.C. You explain that they can use stored plans to for packaged applications to modify the SQL so that it can

perform well with the Oracle Exadata Database Machine.D. You try to get them to understand the benefits provided for data warehousing on the same data.



QUESTION 39Your customer's high priority applications are latency-sensitive. Which features of the Oracle Exadata DatabaseMachine are crucial to servicing these high priority applications?

A. Flash CacheB. IORMC. ASMD. RAC

Correct Answer: ABSection: (none)Explanation


QUESTION 40Your customer is moving their application to an Exadata environment from a standard Oracleenvironment.What three changes might you expect to make to optimize performance and resource usageinthenew environment?

A. You will add Indexes to your tables for better performance.B. You should consider implementing a different partitioning strategy.C. You should consider reducing the number of materialized views.D. You should make the extents larger, such as 8 MBs.



QUESTION 41What percent of Flash Cache can be used to hold pinned database objects?

A. 10B. 20C. 50D. 80E. 90



QUESTION 42Your customer wants to use their Oracle Exadata Database Machine to consolidate multiple existing Oracledatabases. They see a problem, since some of these databases currently use RAC and others do not. Howshould you address this potential issue?

A. Suggest that this is a great time to upgrade all their databases to RAC, since an Oracle Exadata DatabaseMachine has to have either all RAC or no RAC databases.

B. Divide the Oracle Exadata Database Machine up into two equal partitions, using one for RAC and the otherfor their single instance databases.

C. You can assign databases to database servers in any way, regardless of whether the database is RAC orsingle instance

D. Migrate all databases to single instance databases since they always provide better performance on aOracle Exadata Database Machine.



QUESTION 43What is sent from the Oracle database kernel to the Exadata Storage Server using iDB?

A. Block requestsB. A command representing the SQL statementC. The filtering predicates from the current SQL statementD. Statistics on data usage



QUESTION 44When initially setting up an Exadata Storage Server, in what order should you run the following Procedures?

A. ALTER CELL, CREATE CELLDISK, CREATE GRIDDISK, CALIBRATEB. ALTER CELL, CREATE GRIDDISK, CREATE CELLDISK, CALIBRATEC. CREATE GRIDDISK, CREATE CELLDISK, CALIBRATE, ALTER CELLD. CALIBRATE, CREATE GRIDDISK, CREATE CELLDISK, ALTER CELLE. CALIBRATE, ALTER CELL, CREATE GRIDDISK, CREATE CELLDISK 30



QUESTION 45What action(s) must you perform to create Flash-based grid disks?

A. None - they are created by defaultB. Issue the CREATE DISK. . FLASHDISK command after initial setup of the cell IC. Issue DROP FLASHCACHE and then CREATE GRIDDISKFLASHDISK commandsD. Issue the DROP FLASHCACHE and CREATE FLASHCELLDISK commands



QUESTION 46Which Exadata Storage Server users can only view Exadata cell objects?

A. RootB. CelladminC. Cell monitorD. CellCLI



QUESTION 47Which three load characteristics will benefit from IORM plans?A. Conflicting workloads, both of which arelatency sensitive.

A. Conflicting workloads, both of which are throughput sensitive.B. When I/O is a bottleneck.C. When CPU is a bottleneck.



QUESTION 48What three types of resource plans can be used with I/O Resource Manager?

A. RatioB. PriorityC. Hybrid

D. Disk-based



QUESTION 49How much memory comes with eachExadata Storage cell?

A. 24 GBB. 72 GBC. 256 GBD. 512GB



QUESTION 50To ensure proper utilization of Exadata Storage, you want to use some of the tools that come with OracleExadata. Which software is used to monitor Oracle Exadata storage?

A. EM Grid ControlB. EM Database ControlC. IORMD. Oracle Linux



QUESTION 51What is the rule for using different types of compression on different partitions of a single table stored on anExadata Storage Server?

A. All partitions must either be compressed or uncompressed.B. All partitions must use either OLTP compression or Hybrid Columnar Compression.C. Any partition can use any type of compression, regardless of the compression of other partitions.D. You cannot mix compression types among partitions of the same table.



QUESTION 52The Oracle Exadata Database Machine retrieves data from disks in response to a SQL statement in the sameway as a standard database server.

A. TrueB. False



QUESTION 53A Database Resource manager plan includes which three attributes?

A. Database names, levels and allocationsB. Database names, levels, and resource groupsC. Database names, allocations and resource groupsD. Database names, resource groups, and categories



QUESTION 54You want to understand which SQL statements have been executing using Smart Scan capabilities.Where can you look for this information?

A. You can infer from the performance of the statement.B. Query statistics from the V$ viewsC. The hints used in a SQL statementD. With the CELLCLI SMART.SQL statement



QUESTION 55Your customer wants to use Hybrid Column Compression, but they are concerned because they update recentdata frequently. Which is the best strategy for addressing this scenario?

A. Use HCC in archive mode.B. Batch write operations to increase the efficiency of HCC.C. Avoid HCC at all costs.D. Partition table and use HCC on older, less updated partitions.

Correct Answer: D

Section: (none)Explanation


QUESTION 56Which three statements are true with regard to I/O Resource plans?

A. You define inter-database resource plans with Database Resource Manager.B. You define Intra-database resource plans with Database Resource Manager.C. You define categories with Database Resource Manager.D. You enable a category plan with CellCLI.



QUESTION 57You want to use Intelligent Data Placement effectively. Which statements can guide you In these bestpractices?

A. Active data Is placed on the outer portion of diskB. Mirrored data is placed on the outer portion of diskC. Active data from all grid disks is on the inside portion of the diskD. Active data and mirrored data are placed together, with the first grid disk going on the outside of the disk.



QUESTION 58You have defined a category plan for an IORM plan. The Interactive category has an allocation of 90 and levelof 1, the Batch category has an allocation of 80 and level 2, and the Maintenance and Other Categories arelevel 3 with an allocation of 50 for each. If the I/O requests for all categories are saturating the cell, andrequests for 20% of the available I/Os are for the Interactive category, 30% of the available I/Os are for theBatch category, what percent of the remaining I/O requests represent the maximum amount allocate for theMaintenance group?

A. 5%B. 10%C. 25%D. 50%



QUESTION 59Which software runs on the Exadata Storage Server?

A. Enterprise ManagerB. Oracle Enterprise LinuxC. IORMD. CELLSRVE. Restart Server



QUESTION 60What does the Exadata Server software use BloomFiltersfor?

A. Join filteringB. Query optimizationC. Cardinality analysisD. Sorting



QUESTION 61Your customer has an initial need to store 100 TBs of data In the Oracle Exadata Database Machine. Yourecommend a full rack with 336 TBs of SATA disk. When your customer asks why you have seeminglyrecommended too large a machine, what should you reply?

A. SATA disks are always better.B. SAS disks could work, but SATA provide more raw bandwidth.C. You want to make sure your customer has room for growth, even If they don't think they need it now.D. When you include the storage space needed for redundant data, logs, rollback and temp space, a full rack

of SATA disks provides 100 TBs of storage for user data.



QUESTION 62Why is performing an incremental backup of data from an Exadata Storage Server likely faster than backing updata from normal storage?

A. All data on the Exadata Storage Serveris compressed.

B. All backups from the Exadata Storage Server are compressed.C. Recovery Manager always uses more threads to perform backups from an Exadata Storage Server.D. Offload processing finds only the changed blocks.



QUESTION 63What happens when a grid disk is in a synch state?

A. ASM writes all changes that occurred while the disk was offline.B. Log entries on the disk are synched with log files.C. Data values on the disk are synched with data in the Flash Cache.D. There is no synch state for grid disks.



QUESTION 64You have defined a category plan for an IORM plan. The Interactive category has an allocation of 90 and levelof 1, the Batch category has an allocation of 80 and level 2, and the Maintenance and Other Categories arelevel 3 with an allocation of 50 for each. If the I/O requests for all categories are saturating the cell and 50% ofthese requests are for the Interactive category and 30% are for the Batch category, what percent of theremaining I/O requests represent the maximum amount allocated for the Maintenance group?

A. 5%B. 10%C. 20%D. 50%



QUESTION 65If you perform an ALTER on a cell disk or grid disk, you must also modify any ASM group that uses that entity.

A. TRUEB. FALSE



QUESTION 66Which two features provide performance benefits in a similar way?

A. Partitioning and Storage IndexesB. Storage Indexes and ParallelismC. Partitioning and parallelismD. Model scoring and Partitioning



QUESTION 67When do you specify the type of interleaving for a grid disk?

A. When you create the cell diskB. When you create the grid diskC. Through ASMD. When you create a tablespace



QUESTION 68Why would you reduce the default disk_repair_time parameter?

A. To extend the availability of your ASM disk groups.B. To reduce the need for high redundancyC. To reduce the amount of data collected for a fast resynchD. To increase performance of anExadata Storage Server.




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1Z0-536 V9.02_formatted - GRATIS EXAM