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QUESTION NO: 1
Which technique will allow multiple georaster objects to be loaded simultaneously when you use GDAL?
A. using the-scalecommand-line parameter ofgdal_translate
B. creating multiple raster data tables and using the-multicommand-line parameter ofgdalwarp
C. using the-multicommand-line parameter ofgdalwarp
D. building a process that creates multiple threads that rungdal_translate
Answer: C
Explanation:
Use the -multi option with gdalwarp to enable multithreading, as opposed to only multiple cores.
References: https://trac.osgeo.org/gdal/changeset/38196

QUESTION NO: 2
When creating a partitioned spatial index, which syntax parameter determines the number of parallel processes?
A. NUMPROCESSORS
B. NUMCORES
C. AFFINITY
D. DEGREE
E. PARALLEL_CPUs
Answer: D
Explanation:
Parallel query on multiple partition searching
The degree of parallelism is the value from the DEGREE column in the row for the index in the
USER_INDEXES view (that is, the value specified or defaulted for the PARALLEL keyword with the
CREATE INDEX, ALTER INDEX, or ALTER INDEX REBUILD statement).
References: https://docs.oracle.com/database/121/SPATL/using-partitioned-spatial- indexes.htm#SPATL586

QUESTION NO: 3
The Spatial routing engine must have the following tables in its schema: EDGE, NODE,
PARTITION, and SIGN_POST. Which table will contain the name and numbers of the highway exists?
A. SIGN_POST
B. NODE
C. PARTITION
D. EDGE
Answer: A

QUESTION NO: 4
One of the best ways to optimize queries by using Spatial operators is to always use a ______ as your query window.
A. circular buffer
B. grid cell
C. join
D. polygon
E. NULL
Answer: A

QUESTION NO: 5
When using a partitioned index on a spatially partitioned table, a first level of optimization is performed making use of SDO_ROOT_MBR in the spatial index metadata. What is this optimization called?
A. hash indexing
B. index elimination
C. partition flux
D. partition pruning
E. deterministic function selection
Answer: D
Explanation:
Spatial partition pruning is similar to the pruning the optimizer does, but it is based onlocation and does not require a partitioning key to be specified on the input query. When a user does a spatial query using SDO_FILTER, SDO_RELATE, or
SDO_WITHIN_DISTANCE, a query window specifies an area-of-interest. Normally, the minimum bounding rectangle around that area-of-interest is compared with the minimum bounding rectangles associated with geometries in a layer using fast searches into the spatial index. When a partitioned spatial index is used, each partition's index metadata includes a column called SDO_ROOT_MBR, which contains the minimum bounding rectangle around all of the data in that index partition. At query time, Spatial indexing examines the SDO_ROOT_MBR column of each partition, and if the MBR of the area-of- interest does not overlap the SDO_ROOT_MBR, spatial partition pruning will occur and the index associated with that partition will never be searched.
References: http://download.oracle.com/otndocs/products/spatial/pdf/spatial_wp10_bestprac.pdf, page 8

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1Z0-595 考試重點 & Oracle Spatial 11G Essentials 認證資料

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考試編碼:1z0-595
考試名稱:Oracle Spatial 11g Essentials
更新時間:2018-04-19
問題數量:77題
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考試編碼:1z0-595
考試名稱:Oracle Spatial 11g Essentials
更新時間:2018-04-19
問題數量:77題
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考試編碼:1z0-595
考試名稱:Oracle Spatial 11g Essentials
更新時間:2018-04-19
問題數量:77題
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