1z0-595.oracle. Number: 1z0-595 Passing Score: 800 Time Limit: 120 min.

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1 1z0-595.oracle Number: 1z0-595 Passing Score: 800 Time Limit: 120 min

2 Exam A QUESTION 1 Which function call would return the area of a geometry, geom1, in square kilometers? A. SDO_GEOM.SDO_AREA(geom1,.05) B. SDO_GEOM.SDO_AREA(geom1,.05, unit=sq_km ) C. SDO_GEOM.SDO_AREA(geom1, unit=sq_km ) D. SDO_GEOM.SDO_AREA_SQ_KM(geom1,.05) E. SDO_GEOM.SDO_AREA_SQ_KM(geom1) Correct Answer: B /Reference: SDO_GEOM.SDO_AREA Format SDO_GEOM.SDO_AREA( geom IN SDO_GEOMETRY, dim IN SDO_DIM_ARRAY [, unit IN VARCHAR2] ) RETURN NUMBER; or SDO_GEOM.SDO_AREA( geom IN SDO_GEOMETRY, tol IN NUMBER [, unit IN VARCHAR2] ) RETURN NUMBER; Description Returns the area of a two-dimensional polygon. Parameters geom Geometry object. dim Dimensional information array corresponding to geom, usually selected from one of the xxx_sdo_geom_metadata views.

3 unit Unit of measurement: a quoted string with unit= and an SDO_UNIT value from the MDSYS.SDO_AREA_UNITS table (for example, 'unit=sq_km'). If this parameter is not specified, the unit of measurement associated with the data is assumed. For geodetic data, the default unit of measurement is square meters. tol Tolerance value References: QUESTION 2 You have defined a number of Web Map Service (WMS) and Web Feature Service (WFS) themes by using the MapBuilder tool of Oracle MapViewer. Which two actions can you perform with those themes? A. Overlay a WMS theme with the data from your database. B. Overlay a WMS theme with the data from a WFS theme. C. Perform SQL searches on the WFS themes. D. Reproject the WFS geometries to a different coordinate system. E. Copy data from a WFS theme into your database. Correct Answer: AD /Reference: A: Regardless of what type of data is associated with a theme (except for WMS themes, which represent externally rendered map layers), the MapViewer styling rules still need to be defined for each theme, and the styles referenced by the styling rules must exist and be stored in the database as part of the mapping metadata. D: A WFS theme is a special kind of MapViewer theme that supports the rendering of data delivered using the Open GIS Consortium (OGC) Web Feature Service (WFS) protocol, specifically the WFS implementation specification. WFS theme are conceptually similar to geometry themes, and users are able to render and label features. The WFS operations GetCapabilities,

4 DescribeFeatureType, and GetFeature are used when rendering a WFS theme. When a WFS service is accessed, MapViewer caches the information about capabilities and feature types. References: QUESTION 3 Identify four OGC vector data formats that Oracle Spatial can translate to and from natively. A. GML B. SHP C. WKT D. WKB E. GWT F. KML Correct Answer: ACDF /Reference: Oracle Spatial provides different types of converters to convert the geometry data to GML (both Version 2.1 and Version 3.1.1), KML, and the well-known text and binary (WKT and WKB) representations. These converters are provided as PL/SQL functions and Java APIs. References: QUESTION 4 Which two requests will you use to update records in a catalog that is published via the Catalog Service for the Web (CSW)? A. GetRecords B. GetRecordsWithLock C. Transaction D. Harvest Correct Answer: CD

5 /Reference: Operations defined by the CSW standard include: Transaction (optional): create/edit metadata by 'pushing' the metadata to the server Harvest (optional): create/update metadata by asking the server to 'pull' metadata from somewhere GetCapabilities: "allows CSW clients to retrieve service metadata from a server" DescribeRecord: "allows a client to discover elements of the information model supported by the target catalogue service. The operation allows some or all of the information model to be described". GetRecords: search for records, returning record IDs GetRecordById: "retrieves the default representation of catalogue records using their identifier" GetDomain (optional): "used to obtain runtime information about the range of values of a metadata record element or request parameter" Note: Catalog Service for the Web (CSW), sometimes seen as Catalog Service - Web, is a standard for exposing a catalogue of geospatial records in XML on the Internet (over HTTP). The catalogue is made up of records that describe geospatial data (e.g. KML), geospatial services (e.g. WMS), and related resources. References: QUESTION 5 What does Oracle Spatial use to generate the R-tree spatial index entry for a polygon geometry? A. the perimeter of the geometry B. the minimum bounding rectangle of the geometry C. the number of ordinates in the geometry D. the area of the geometry E. SDO_GTYPE of the geometry Correct Answer: B /Reference: A spatial R-tree index can index spatial data of up to four dimensions. An R-tree index approximates each geometry by a single rectangle that minimally encloses the geometry (called the minimum bounding rectangle, or MBR), as shown in figure below. For a layer of geometries, an R-tree index consists of a hierarchical index on the MBRs of the geometries in the layer, as shown in the figure below.

6 1 through 9 are geometries in a layer. a, b, c, and d are the leaf nodes of the R-tree index, and contain minimum bounding rectangles of geometries, along with pointers to the geometries. For example, a contains the MBR of geometries 1 and 2, b contains the MBR of geometries 3 and 4, and so on. A contains the MBR of a and b, and B contains the MBR of c and d. The root contains the MBR of A and B (that is, the entire area shown). References: QUESTION 6 Which command will load a shapefile named states.shp by using the GDAL/ORG command-line utilities? Assume that the database name, username, and password are mvdemo. A. gdal_translate of oracle mvdemo/mvdemo@mvdemo states.shp B. ogr2ogr f OCI:mvdemo/mvdemo@mvdemo states.shp C. ogr2oracle f OCI mvdemo/mvdemo@mvdemo states.shp D. ogr2oracle f ORACLE mvdemo/mvdemo@mvdemo states.shp E. gdal_translate of OCI mvdemo/mvdemo@mvdemo states.shp Correct Answer: B /Reference: Example Simple translation of a shapefile into Oracle. The table 'ABC' will be created with the features from abc.shp and attributes from abc.dbf. % ogr2ogr -f OCI OCI:warmerda/password@gdal800.dreadfest.com abc.shp References:

7 QUESTION 7 Which two are benefits of partitioning in Oracle Spatial? A. reduced CPU utilization B. reduced network utilization C. query parallelism D. faster index builds E. reduced storage needs Correct Answer: CD /Reference: Partitioning is used in data management solutions to address issues of manageability, scalability, and performance C: Here are some Oracle partitioning capabilities that can enhance scalability and performance: Search multiple table or index partitions in parallel Spread the I/O load associated with table or index accesses across multiple controllers Store data physically on disk so that data that is likely to be processed together is close together on disk Eliminate partitions from consideration based on a partition key D: There are many meaningful benefits of partitioning to enhance manageability in a DBMS solution. These benefits include the ability to: Backup data on a partition-by-partition basis Restore data on a partition-by-partition basis Load a partition at a time Store data in different tablespaces on a partition-by-partition basis Rebuild indexes on a partition-by-partition basis References: page 4 QUESTION 8 Identify two compression types that are not natively supported by GeoRaster, but are supported through the Lizardtech GeoRaster plugin.

8 A. BMP B. MrSID C. JPEG 2000 D. ECW E. TIFF F. JPEG Correct Answer: BC /Reference: Oracle Spatial GeoRaster 10g Release 2 provides a plugin architecture to support wavelet compression schemes such as those from LizardTech. Users who install the LizardTech plugin may compress GeoRaster objects using any of three wavelet compression types: MrSID Generation 2, MrSID Generation 3 and LizardTech JPEG References: QUESTION 9 In Spatial Analysis and Mining, what does the term binning mean? A. binary searches B. partitioning data by size C. compressing data D. simple sort E. classifying data based on location Correct Answer: E /Reference: The spatial analysis and mining features in Oracle Spatial let you exploit spatial correlation by using the location attributes of data items in several ways: for binning (discretizing) data into regions (such as categorizing data into northern, southern, eastern, and western regions), for materializing the influence of neighborhood (such as number of customers within a two-mile radius of each store), and for identifying colocated data items (such as video rental stores and pizza restaurants). References:

9 QUESTION 10 What is the following query best suited for? A. listing partitions by size B. visualizing the partitions C. clustering the partitions D. virtualizing the partitions E. normalizing the data Correct Answer: B /Reference: Sdo_aggr_mbr returns the minimum bounding rectangle (MBR) of the specified geometries, that is, a single rectangle that minimally encloses the geometries. References: QUESTION 11 To refresh workspace E1 you use the command DBMS_WM.RefreshWorkspace( E1 ); What is the impact of that command? Identify the two correct answers. A. It applies all the changes made in the child to the parent because the child was created or refreshed last. B. When a workspace or table is refreshed, all conflicts are automatically resolved. C. When a workspace or table is refreshed, all conflicts must be resolved. D. It applies all the changes made in the parent to the child because the child was created or refreshed last. Correct Answer: CD /Reference: RefreshWorkspace applies to a workspace all changes made in its parent workspace. This procedure applies to workspace all changes made to version-enabled tables in the parent workspace since the time when workspace was created or last refreshed.

10 If there are conflicts between the workspace being refreshed and its parent workspace, the refresh operation fails and the user must manually resolve conflicts using the <table_name>_conf view. References: QUESTION 12 Oracle Spatial expects the ring of a polygon boundary to be oriented. A. clockwise B. counterclockwise C. true north D. grid north E. low to high elevation Correct Answer: B /Reference: Oracle Spatial expects the ring of the polygon boundary to be oriented counterclockwise. References: Pro Oracle Spatial for Oracle Database 11g (3 Jan 2012), page QUESTION 13 Always store two or three dimensional point data in SDO_POINT. To ensure less storage and faster query access to such point data, set SDO_ELEM_INFO and SDO_ORDINATES to? A. SDO_GEOMETRY B. SDO_FAST C. NULL D. NUM_DIMENSIONS E. SDO_POINT

11 Correct Answer: C /Reference: The SDO_POINT attribute is defined using the SDO_POINT_TYPE object type, which has the attributes X, Y, and Z, all of type NUMBER. If the SDO_ELEM_INFO and SDO_ORDINATES arrays are both null, and the SDO_POINT attribute is non-null, then the X, Y, and Z values are considered to be the coordinates for a point geometry. Otherwise, the SDO_POINT attribute is ignored by Spatial. References: QUESTION 14 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. EDGE B. NODE C. PARTITION D. SIGN_POST Correct Answer: D /Reference: The SIGN_POST table stores sign information that is used to generate driving directions. For example, a sign might indicate that Exit 33A on US Route 3 South goes toward Winchester. A SIGN_POST row might correspond to a physical sign at an exit ramp on a highway, but it does not need to correspond to a physical sign. References: QUESTION 15 In the following function, what is the location?

12 A. an St_Geometry object B. a VARRAY of characters C. an index entry D. an SDO_GEOMETRY object E. shapefile Correct Answer: D /Reference: SDO_GCDR.REVERSE_GEOCODE Format SDO_GCDR.REVERSE_GEOCODE( username IN VARCHAR2, location IN SDO_GEOMETRY, country IN VARCHAR2 ) RETURN SDO_GEO_ADDR; Description Reverse geocodes a location, specified by its spatial geometry object and country, and returns the result as an SDO_GEO_ADDR object. References: QUESTION 16 The J2EE geocoder processes geocoding requests and generates responses. To enable this geocoding service, which file (in $ORACLE_HOME/md/jlib) must be deployed in your application server? A. geocoder_ws.ear B. geocoder.war

13 C. geocoder.html D. geocoder.xml E. geocoder.ear Correct Answer: E /Reference: The J2EE geocoder processes geocoding requests and generates responses. To enable this geocoding service, a geocoder.ear.zip file must be deployed using Oracle WebLogic Server. Note: To deploy and configure the geocoding service, follow these steps. Deploy the geocoder using Oracle WebLogic Server: 1. Unzip the geocoder.ear.zip file found in your $ORACLE_HOME/md/jlib directory into a suitable directory. Your resulting directory structure should be: $geocoder.ear/web.war/... Log on to the WebLogic Server console (for example, and from Deployments install the geocoder.ear file, accepting the Name geocoder for the deployment and choosing the Location option Make the deployment accessible from the following location. References: QUESTION 17 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. partition pruning B. index elimination C. hash indexing D. partition flux E. deterministic function selection Correct Answer: A /Reference: Spatial partition pruning is similar to the pruning the optimizer does, but it is based on location 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.

14 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: page 8 QUESTION 18 What kind of geometries cannot be stored in the Oracle database? A. points with x, y, and z coordinates B. polygons with holes C. polylines with straight lines and arcs D. 3D objects, including point clouds and TINs E. LRS polygons with gaps Correct Answer: E /Reference: The linear referencing system (LRS) application programming interface (API) in Oracle Spatial provides server-side LRS capabilities at the cartographic level. The linear measure information is directly integrated into the Oracle Spatial geometry structure. Geometric segments are basic LRS elements in Oracle Spatial. A geometric segment can be any of the following: Line string: an ordered, nonbranching, and continuous geometry (for example, a simple road) Multiline string: nonconnected line strings (for example, a highway with a gap caused by a lake or a bypass road) Polygon (for example, a racetrack or a scenic tour route that starts and ends at the same point) Incorrect Answers: A: Effective with Oracle9i, Spatial provides a rational and complete treatment of geodetic coordinates. Effective with release 9.2, ellipsoidal surface computations consider the curvatures of the Earth in the specified geodetic coordinate system and return correct, accurate results. In other words, Spatial queries return the right answers all the time.

15 B: For a polygon with holes, the outer boundary must be stored first in the SDO_ORDINATES definition, followed by coordinates of the inner boundaries. C: A Polyline object is a shape defined by one or more paths, in which a path is a series of connected segments. D: Oracle Spatial supports the creation and storage of three-dimensional geometry objects, Effective with Oracle Database Release 11.1, Oracle Spatial supports the storage and retrieval of three-dimensional spatial data, which can include points, point clouds (collections of points), lines, polygons, surfaces, and solids. References: QUESTION 19

16 The following diagram shows an Oracle Spatial Topology example. Items labeled E1, E2, and so one are edges; items labeled N1, N2, and so on are nodes. What are items labeled F1, F2, and so on? A. frames B. faces C. elevations D. features E. named areas

17 Correct Answer: B /Reference: The topology data model of Oracle Spatial lets you work with data about nodes, edges, and faces in a topology. A node, represented by a point, can be isolated or it can be used to bound edges An edge is bounded by two nodes: the start (origin) node and the end (terminal) node. The start node of the positive directed edge is the end node of the negative directed edge. An edge also lies between two faces and has references to both of them. Each directed edge contains a reference to the next edge in the contiguous perimeter of the face on its left side. A face, corresponding to a polygon, has a reference to one directed edge of its outer boundary. If any island nodes or island edges are present, the face also has a reference to one directed edge on the boundary of each island. Examples of geographic entities that might be represented as faces include parks, lakes, counties, and states. References: QUESTION 20 Identify one operation of the sdo_geom.sdo_arc_densify function. A. Returns the approximate distance between two points along a circular arc B. Returns a circle that approximates the minimum bounding rectangle of a polygon C. Converts between spherical polar coordinates and cartesian coordinates D. Converts the line segments of a polygon into circular arcs E. Converts the circular arcs of a polygon into an approximation consisting of line segments. Correct Answer: E /Reference: The sdo_geom.sdo_arc_densify function returns a geometry in which each circular arc in the input geometry is changed into an approximation of the circular arc consisting of straight lines, and each circle is changed into a polygon consisting of a series of straight lines that approximate the circle. References: QUESTION 21 Which two statements correctly describe the storage model of point clouds in Oracle Spatial? A. Each point cloud requires a specific point cloud table and point cloud block table. B. A separate point cloud table is required for each point cloud, but its blocks can be in any number of point cloud block tables.

18 C. A point cloud block table can store parts of multiple point clouds. D. All point clouds in a point cloud table must be stored in the same point cloud block table. E. A point cloud table can store many point clouds. Correct Answer: BE /Reference: Point Cloud-Related Object Types This section describes the following object types related to support for point clouds: SDO_PC This is the point cloud table. The description of a point cloud is stored in a single row, in a single column of object type SDO_PC in a user-defined table. One of the columns is BLK_TABLE, which is the name of the table that contains information about each block in the point cloud. SDO_PC_BLK This is the point cloud block table. References: QUESTION 22 Which two spatial predicates return all the cities that are located in a given county? A. SDO_CONTAINS (city_geom, county_geom) = TRUE B. SDO_INSIDE (county_geom, city_geom) = TRUE C. SDO_ANYINTERACT (county_geom, city_geom) = TRUE D. SDO_ANYINTERACT (city_geom, county_geom) = TRUE Correct Answer: AB /Reference: A: Format: SDO_CONTAINS(geometry1, geometry2); Checks if any geometries in a table have the CONTAINS topological relationship with a specified geometry. The expression SDO_CONTAINS(geometry1,geometry2) = 'TRUE' evaluates to TRUE for object pairs that have the CONTAINS topological relationship, and FALSE otherwise. B: Format: SDO_INSIDE(geometry1, geometry2); Checks if any geometries in a table have the INSIDE topological relationship with a specified geometry.

19 The expression SDO_INSIDE(geometry1,geometry2) = 'TRUE' evaluates to TRUE for object pairs that have the INSIDE topological relationship, and FALSE otherwise. Note: Some topological relationships CONTAINS: The interior and boundary of one object is completely contained in the interior of the other object. INSIDE: The opposite of CONTAINS. A INSIDE B implies B CONTAINS A. ANYINTERACT: The objects are non-disjoint. DISJOINT: The boundaries and interiors do not intersect. Figure of Topological Relationships References: QUESTION 23 When you use tile layer, how does the map cache server provide correct results? Identify two correct statements. A. When an end-user application asks for a region, the map cache server generates an image from the defined map. B. The map cache server returns the tiles available in the tile cache, and generates new tiles if they are not yet in the cache.

20 C. Using the mesh code, the map cache server identifies a list of tiles that need to be retrieved by the end-user application. D. MapViewer cannot give you local tiles and will always connect to an external tile cache server. Correct Answer: BC /Reference: B: When the map tile server receives a map image tile request, it first checks to see if the requested tile is already cached. If the tile is cached, the cached tile is returned to the client. If the tile is not cached, the map tile server fetches the tile into the cache and returns it to the client. Tiles can be fetched either directly from the MapViewer map rendering engine or from an external Web map services provider. C: The map tile server is a map image caching engine that caches and serves pregenerated, fixed-size map image tiles. It is implemented as a Java servlet that is part of the MapViewer server. The map tile server accepts requests that ask for map image tiles specified by tile zoom level and tile location (mesh code), and it sends the requested tiles back to clients. Note: The map tile server (map image caching engine) automatically fetches and caches map image tiles rendered by Oracle MapViewer or other Web-enabled map providers. It also serves cached map image tiles to the clients, which are Web applications developed using the Oracle Maps client API. The clients can then automatically stitch multiple map image tiles into a seamless large map. Because the map image tiles are pregenerated and cached, the application users will experience fast map viewing performance. References: QUESTION 24 Identify two correct ways to define Spatial metadata. A. Metadata is filled in ALL_SDO_GEOM_METADATA by the MDSYS user for all database layers. B. Metadata is filled in USER_SDO_GEOM_METADATA to define boundaries for each layer. C. Metadata defines the coordinate system and indirectly associates units to layers. D. Metadata is automatically filled in when you create spatial indexes and takes the footprint of layers as default boundaries. Correct Answer: AB /Reference: A: The geometry metadata describe for each dimensions (axis): the lower bound the upper bound, and the tolerance.

21 This data are stored in a global table owned by MDSYS (which users should never directly update). Once the metadata are filled, you can and must create the index. AB: Each Spatial user has the following views available in the schema associated with that user: USER_SDO_GEOM_METADATA contains metadata information for all spatial tables owned by the user (schema). This is the only view that you can update, and it is the one in which Spatial users must insert metadata related to spatial tables. ALL_SDO_GEOM_METADATA contains metadata information for all spatial tables on which the user has SELECT permission. Spatial users are responsible for populating these views. For each spatial column, you must insert an appropriate row into the USER_SDO_GEOM_METADATA view. Oracle Spatial ensures that the ALL_SDO_GEOM_METADATA view is also updated to reflect the rows that you insert into USER_SDO_GEOM_METADATA. References: QUESTION 25 Which PL/SQL block will create pyramid levels for each taster object (column GEOR) in table IMAGES? A. B.

22 C. D. E.

23 A. Option A B. Option B C. Option C D. Option D E. Option E Correct Answer: E /Reference: The following example creates pyramid data for a GeoRaster object. DECLARE gr sdo_georaster; BEGIN SELECT georaster INTO gr FROM georaster_table WHERE georid = 6 FOR UPDATE; -- Generate pyramids. sdo_geor.generatepyramid(gr, 'rlevel=5, resampling=nn'); -- Update the original GeoRaster object.

24 UPDATE georaster_table SET georaster = gr WHERE georid = 6; COMMIT; END; Incorrect Answers: A, C: Must use rlevel, not PyramidLevel. rlevel (for example, rlevel=2): Specifies the maximum reduction level: the number of pyramid levels to create at a smaller (reduced) size than the original object. B: Use a separate sdo_geor.generatepyramid statement to generate the pyramids, and a separate UPDATE statement to update the GeoRaster object. D: Must use a UPDATE statement to update the Georaster object. References: QUESTION 26 Which control file begindata block will successfully add a point geometry to the CUSTOMERS table when it is used in the following control file:

25 A SDO_POINT_TYPE( -77, 39) B SDO_POINT( -77, 39) C SDO_POINT ( --77, 39) D E X -77 Y 39 Correct Answer: D /Reference: Bulk Loading Point-Only Data in SDO_GEOMETRY Objects Example below shows a control file for loading a table with point data. LOAD DATA INFILE * TRUNCATE CONTINUEIF NEXT(1:1) = '#' INTO TABLE POINT FIELDS TERMINATED BY ' ' TRAILING NULLCOLS ( GID INTEGER EXTERNAL, GEOMETRY COLUMN OBJECT ( SDO_GTYPE INTEGER EXTERNAL, SDO_POINT COLUMN OBJECT (X FLOAT EXTERNAL, Y FLOAT EXTERNAL) ) ) BEGINDATA References:

26 QUESTION 27 The Spatial geocoder schema is made up of seven data tables and their indexes, as well as three profile tables. The data tables store the address and coordinate information. What information do the profile tables store that is used by the geocoder to parse the addresses entered by a user? A. country B. elevation C. address format D. length E. GPS Correct Answer: A /Reference: The GC_COUNTRY_PROFILE table stores country-profile information used by the Oracle Geocoder. References: page 17 QUESTION 28 Identify two kinds of information that can be stored in an SDO_GEORASTER object. A. raster cell data B. the blocks of a raster object C. the spatial extent of a raster object D. any changes detected in a raster object E. the name of the raster s RDT (raster data table) Correct Answer: AC /Reference: A: The core data in a raster is a multidimensional matrix of raster cells. C: The spatial extent (footprint) of a GeoRaster object is part of the metadata, but it is stored separately as an attribute of the GeoRaster object. References:

27 QUESTION 29 Which two data providers have data available today for the Oracle Spatial Geocoder and Router schemas? A. Google B. Nokia/Navteq C. TomTom D. Yahoo Maps E. OpenStreetMaps Correct Answer: BE /Reference: Possible data providers are OSM and Nokia. Note in German: Der Oracle Geocoder liefert dabei nur ein leeres Schema für die Referenzdaten und die Geocoding-Algorithmen. Die unabdingbaren Referenzdaten müssen vom Anwender durch eine selbst implementierte Funktion in die Datenbank eingespielt werden. Mögliche Datensätze sind OSM oder Daten von Nokia. References: QUESTION 30 You want to generate KML from a table (buildings) to show it on Google Earth (CS 4327). This table contains 3D objects in a 3D projected coordinated system (CS 7405). Which SQL statement will generate this KML? A.

28 B. C.

29 D. A. Option A B. Option B C. Option C D. Option D Correct Answer: D /Reference:

30 Sdo_util.to_kmlgeometry converts a Spatial geometry object to a KML (Keyhole Markup Language) document. Format SDO_UTIL.TO_KMLGEOMETRY( geometry IN SDO_GEOMETRY ) RETURN CLOB; Sdo_cs.transform transforms a geometry representation using a coordinate system (specified by SRID or name). Format here: SDO_CS.TRANSFORM( geom IN SDO_GEOMETRY, to_srid IN NUMBER ) RETURN SDO_GEOMETRY; Parameters Geom: Geometry whose representation is to be transformed using another coordinate system. to_srid: The SRID of the coordinate system to be used for the transformation. References: QUESTION 31 MapViewer uses many parameters to configure its behavior. Identify two ways to specify those parameters. A. using environment variables B. by editing a configuration file C. by having the end user dynamically set them D. via a web configuration console Correct Answer: BD /Reference: If the default configuration settings for running MapViewer are not adequate, you can configure MapViewer by editing the MapViewer configuration file,

31 mapviewerconfig.xml, which is located in the $ORACLE_HOME/lbs/mapviewer/web/WEB-INF/conf directory. To modify this file, you can use a text editor, or you can use the MapViewer Administration page. Example: Maximize tile generation throughput: Increase the number of concurrent threads fetching tiles. To do this, adjust MapViewer configuration parameter concurrent_fetching_threads (default 4): <map_tile_layer name="demo_map" image_format="png" http_header_expires="168.0" concurrent_fetching_threads="4">... </map_tile_layer> References: page 46 QUESTION 32 Identify three metadata tables that are used to find information about the spatial indexes in a schema. A. user_sdo_index_info B. user_indexes C. user_sdo_geom_metadata D. user_sdo_index_metadata E. user_sdo_indexes F. user_sdo_columns Correct Answer: ACD /Reference: AD: There are two sets of spatial index metadata views for each schema (user): xxx_sdo_index_info and xxx_sdo_index_metadata, where xxx can be USER or ALL. These views are read-only to users; they are created and maintained by the Spatial indexing routines. C: USER_SDO_GEOM_METADATA contains metadata information for all spatial tables owned by the user (schema). This is the only view that you can update, and it is the one in which Spatial users must insert metadata related to spatial tables. References:

32 QUESTION 33 The MapViewer administration console can be used to define a dynamic database connection (data source). Which two options indicate how long this data source is preserved? A. forever B. until the user logs out C. until the application server is shut down D. until MapViewer restarts Correct Answer: CD /Reference: C: If you use the container_ds attribute, and if you want MapViewer to resume normal operation (for example responding to map requests with properly created maps) automatically after the database on which you defined a data source on is restarted, you must instruct the container data source to always validate a connection before it can be returned to the application. D: You can use apviewer Administration Page to perform administrative tasks, such as configuring MapViewer to your site's specific requirements, adding predefined data sources so that MapViewer will automatically connect to the specified target database whenever it is started. Incorrect Answers: A: Permanent map data sources, defined in the <map_data_source> element. References: QUESTION 34 Which three approaches can be used to make areas of a raster transparent when displayed using MapViewer? A. Create a bitmap mask and use the bitmap_mask attribute of a georaster theme. B. Set the pixels of the area to be made transparent to nodata values and use the transparent_nodata attribute in a georaster theme. C. Update the spatial extent of the raster to the polygonal area that should not be transparent. D. Delete the raster cells that should be transparent.

33 E. Specify a polygon representing an area that should be transparent and use the polygon_mask attribute of a georaster theme. Correct Answer: ABE /Reference: B: transparent_nodata attribute (optional): Specifies if any GeoRaster NODATA value is to be rendered as transparent. The default value is "false". E: polygon_mask attribute (optional): Specifies a set of two-dimensional coordinates representing a polygon, to be used as a mask to make transparent the part of the GeoRaster image that is outside the polygon mask. The coordinates are defined as x1,y1,x2,y2,.... The mask coordinates must be in the data coordinate space. A: The <bitmap_masks> element contains one or more <mask> elements, each with a mask definition for a specific GeoRaster object. The <mask> element has the following attributes: zeromapping specifies the transparency value to be applied during rendering on bitmap pixels with a value of 0 (zero). The attribute value can be from 0 (completely transparent) to 255 (completely opaque). onemapping specifies the transparency value to be applied during rendering on bitmap pixels with a value of 1. The attribute value can be from 0 (completely transparent) to 255 (completely opaque). References: QUESTION 35 Which command will update the spatial extent associated with each raster object (column GEOR) in table IMAGES? A. sdo_geor.generatespatialextent( IMAGES, GEOR ) B. UPDATE images set geor.spatialextent = sdo_geor.generatespatialextent(geor) C. UPDATE images a set a.geor.spatialextent = sdo_geor.generatespatialextent(geor) D. sdo_geor_admin.registergeorasterobjects( IMAGES, GEOR ) E. UPDATE images a set a.geor.spatialextent = sdo_geor_utl.calcoptimizedblocksize(geor) Correct Answer: C /Reference: The following example updates the spatial extent geometry of a specified GeoRaster object in the CITY_IMAGES table to the generated spatial extent (reflecting the model coordinate system) of that object:

34 UPDATE city_images c SET c.image.spatialextent = sdo_geor.generatespatialextent(image) WHERE c.image_id = 100; COMMIT; References: QUESTION 36 Which procedure can be used to validate and correct most geometry errors in an Oracle Spatial geometry? A. SDO_UTIL.RECTIFY_GEOMETRY B. SDO_MIGRATE.TO_CURRENT C. SDO_GEOM.ALPHA_SHAPE D. SDO_TUNE.QUALITY_DEGRADATION E. SDO_CS.TRANSFORM F. SDO_CS.VALIDATE_WKT Correct Answer: A /Reference: SDO_UTIL.RECTIFY_GEOMETRY fixes certain problems with the input geometry, and returns a valid geometry. This function checks for the following problems that can make a geometry invalid, and fixes the problems in the returned geometry: Duplicate vertices Polygon boundary intersecting itself Incorrect orientation of exterior or interior rings (or both) of a polygon If the input geometry has any other problem that makes it invalid, the function raises an exception. If the input geometry is valid, the function returns a geometry that is identical to the input geometry. Incorrect Answers: B: SDO_MIGRATE.TO_CURRENT upgrades data from the obsolete Spatial relational model (release or earlier) to the current release, or upgrades one or more object-relational model (release or later) geometries that need to be upgraded. C: SDO_GEOM.ALPHA_SHAPE returns the alpha shape geometry of the input geometry, based on a specified radius value. D: SDO_TUNE.QUALITY_DEGRADATION returns the quality degradation for an index or the average quality degradation for all index tables for an index, or

35 returns the quality degradation for a specified index table. (Deprecated) E: SDO_CS.TRANSFORM transforms a geometry representation using a coordinate system (specified by SRID or name). F: SDO_CS.VALIDATE_WKT validates the well-known text (WKT) description associated with a specified SRID. References: QUESTION 37 Which two statements are true about Spatial operators? A. They require a spatial index on both arguments. B. They require a spatial index on the first argument. C. Both arguments must be in the same coordinate system. D. They can appear only in the WHERE clause. E. The order of arguments in unimportant. Correct Answer: BD /Reference: Example: SDO_NN(geometry1, geometry2, param [, number]); Uses the spatial index to identify the nearest neighbors for a geometry. Parameters include: geometry1 Specifies a geometry column in a table. The column must be spatially indexed. Data type is MDSYS.SDO_GEOMETRY. geometry2 Specifies either a geometry from a table or a transient instance of a geometry. The nearest neighbor or neighbors to geometry2 will be returned from geometry1. (geometry2 is specified using a bind variable or SDO_GEOMETRY constructor.) Data type is MDSYS.SDO_GEOMETRY. The operator must always be used in a WHERE clause. References: QUESTION 38 Why do you need to use the SDO_WFS_LOCK.registerFeatureTable() operation when publishing a table as a feature class in the Oracle Spatial Web Feature Service (WFS)?

36 A. It is always required when a table is published to WFS. B. It is needed only when the table is published for read-only access. C. It is needed only when the table is updated via WFS-T calls. D. It is optional to register the table in the Catalog Service for the Web (CSW) catalog. Correct Answer: A /Reference: SDO_WFS_LOCK.registerFeatureTable registers a feature table; that is, enables the feature table for WFS transaction locking. This procedure ensures that the necessary constraints for implementing WFS transaction semantics are associated with the feature table. References: QUESTION 39 Which technique does not enable parallel spatial queries? A. specifying the PARALLEL clause in the CREATE INDEX statement B. using CREATE FUNCTION in the PARALLEL statement C. using ALTER TABLE and specifying PARALLEL DEGREE D. using ALTER INDEX and specifying PARALLEL DEGREE Correct Answer: B /Reference: Incorrect Answers: B: CREATE INDEX Syntax: CREATE INDEX [schema.]index ON [schema.]table (column) INDEXTYPE IS MDSYS.SPATIAL_INDEX [PARAMETERS ('index_params [physical_storage_params]' )] [{ NOPARALLEL PARALLEL [ integer ] }]; C, D: A specific degree of parallelism (DOP) can be requested from Oracle Database for both tables and indexes. For example, you can set a fixed DOP at a table level with the following: ALTER TABLE sales PARALLEL 8;

37 ALTER TABLE customers PARALLEL 4; References: