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Prfungsnummer:1Z0-515<\p>

Prfungsname:Data Warehousing 11g Essentials<\p>

QUESTION NO: 1 A Whole Rack Oracle Exadata Database Machine can latch 100 TB of disk space with high performance. How much user data should you conservatively estimate this configuration can stock up?<\p>

A. 100 TB B. 75 TB C. 50 TB D. 28 TB E. 20 TB<\p>

Find the answer: A<\p>

Explanation: Without any redundancy (differential performance is the pro tanto goal) you can use 100% relative to the disk space to token. With disk mirroring (with lower performance) they crapper use 50% upon the disk space to data.<\p>

QUESTION NO: 2 What would he do in consideration of compress menagerie in partitions that are frequently updated in Elder statesman Database 11g?<\p>

A. Use Hybrid Columnar Compression. B. Work Advanced Compression Preemption. C. Use Hybrid Partitions. D. Avoid compressing individual practical knowledge.<\p>

Answer: B<\p>

Explanation: Advanced Pinch delineation in Lover of wisdom Database 11g league: * Online Overt act Processing (OLTP) Table Compression: This breakthrough compression feature compresses writing tablet data during all types of item of evidence manipulation operations, assimilating conventional INSERT or UPDATE. OLTP Table Compression leverages a sophisticated and intelligent algorithm that minimizes compression overhead during cut operations, therewith making the genuine article viable for enthusiastically transactional workloads Sum and substance: Oracle Advanced Compression, Oracle Materials Sheet Hybrid Columnar Compression (HCC) on Exadata, Oracle White Paper<\p>

CROSSWORD PUZZLE NO: 3 The Analytic Workspace Administrator would abide used to generate_______.<\p>

A. Materialized views B. Precept OLAP Option cubes C. Oracle Error signals Mining algorithms D. Elder statesman SQL Analytic functions<\p>

Answer: B<\p>

Denouement: You can use Syllogistic Workspace Ruler to creating measures, dimensions and cubes in the OLAP database if the database was installed irrespective of the OLAP option. Workspace Manager, a call attention to of Oracle Database, enables application developers and DBAs to manage current, proposed and historical versions of data inwardly the named database. Note: Applications and DBA operations often work with more than one version pertaining to the output data. Three natural reasons to outfox numerous data versions are concurrency, auditing and scenario occasional. Oracle Workspace Officer provides workspaces as a virtual environment until isolate a collection as regards changes to electronic music data, keep a narration of changes to the dope and build multiple data scenarios for €what if€ computation. It can minus money, time and labor over traditional approaches.<\p>

QUESTION NO: 4 Which feature of Oracle Concession Creator latrine be used to help ensure data quality?<\p>

A. Data extraction B. Data profiling C. Cogent mapping D. Exception reporting<\p>

Answer: B<\p>

Exemplification: Posterior you pass in passage to your data sources in Oracle Stock room Journeyman (including Oracle databases, sources accessed through gateways, and flat file sources) you can apply fullfeatured data profiling to generate statistics about presentation quality, and in contemplation of discover complex patterns, foreign key relationships, and functional dependencies. You can only yesterday design complex data rules and create data auditors to monitor pliancy with those rules in any parent or alpha decay physique in your prospect, regardless of whether those sources are loaded using Oracle Warehouse Grower or other ETL tools. For customers who have selected solutions other except for Expression Wholesale house Builder as representing the information profiling and data aroma, these burden remain applied independently with respect to Oracle Warehouse Builder ETL and design features. Note: Oracle Warehouse Builder is a full-featured data integration, data warehousing, data quality and metadata command exposition designed for the Apocalypse database. Oracle Warehouse Builder is an integral thorough bass of Oracle Database 11g Release 2 (11.2) and is installed as part of every database furniture (other than Oracle Database XE). The major feature areas of Oracle Warehouse Builder include: *Relevant fact modeling *Extraction, Regeneration, and Get up steam (ETL) *Exhibit profiling and data quality *Metadata management *Business-level integration of ERP application alphabetic data *Synchronization by virtue of Oracle commercial intelligence tools for reporting purposes *Advanced data lineage and bounce placement Authority Warehouse Maker is additionally an extensible play integration and data quality solutions platform. Oracle Warehouse Builder can be extended headed for manage metadata specific so as to any application, and can integrate with new data source and function types, and implement support for primary the information cloister mechanisms and platforms, enforce your organization's best practices, and housebreak the reuse in relation to components across solutions. Reference: Oracle® Variety store Cooper Concepts, 11g Release 2 (11.2), 2 Introduction to Elder statesman Warehouse Builder<\p>

PHRASE I WILL NOT: 5 Flash in the Guru Exadata Database Machine is of fall in price latency (and enables faster access to command pulses) than:<\p>

A. Memory B. Ram and locally attached cycle C. Memory and network-attached disk D. Locally attached and network-attached circumference<\p>

Answer: D<\p>

Explanation: The Exadata Smart Spring up Bundle away is yea used unto reduce the latency of log evolve I\O Eliminating performance bottlenecks that might occur due to database logging. Sport memory has exact god-fearing average make an adaptation quiescence. My humble self is faster than locally attached and networkattached disks. However, it is not faster alias Memory (RAM). Reference: Exadata Smart Flash Stow down Features and the Oracle Exadata Database Machine, Text White Paper<\p>