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Updated Oracle - 1Z1-591 - Actual Oracle Business Intelligence Foundation Suite 11g Essentials Test Answers

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Oracle Business Intelligence Foundation Suite 11g Essentials Sample Questions (Q59-Q64):

NEW QUESTION # 59
What are the two disadvantages of implementing Query Caching?

A. Cache results being old
B. Needs a lot of administrators' time
C. Reduction in BI server processing time
D. Increased network traffic
E. Storage space for cache

Answer: A,E

Explanation:
Explanation/Reference:
B: The problem with caching of any kind is how to deal with stale data. How you decide to deal with this depends on how time critical your business intelligence queries happen to be. OBIEE provides a wide variety of mechanisms for dealing with stale data. The cache can be purged automatically at intervals.
Caching can be enabled selectively for individual physical tables, so that data in a frequently updated table is never cached. OBIEE provides a set of ODBC procedures that can be called when ETL processes complete to programmatically purge designated tables. But, by far the best way to selectively purge the cache is to use an event polling table. This table is populated by the client database whenever changes are made to any table (by an ETL process for a data warehouse or by a table-based trigger for an OLTP database). At specified intervals the BI Server polls this event polling table and deletes from its cache any query results that are dependent on the changed data.
Incorrect answers:
A: Processing time reduction is an advantage.
D: Network traffic decreases with caching.
E: Administration overhead is low.

NEW QUESTION # 60
Which two steps are needed to set up Failover support for an OBIEE deployment?

A. Use Installer to affect Horizontal scale out of an existing instance
B. Use Installer to set up separate single instances, then apply Horizontal scale out clustering
C. Apply OBIEE Clustering option
D. Leverage spare hardware capacity of single machine by using Vertical scale out option
E. Employ WebLogic Enterprise Edition, licensed separately

Answer: A,C

Explanation:
Explanation/Reference:
Horizonal Scaleout of System Components
* Used for adding additional managed servers (Java components) and
system components to an existing cluster
* Used for scalability and failover
* Set up via the Universal Installer > Scale Out BI System option

NEW QUESTION # 61
You do not have a physical time table in your database but would like to use the time series functions that OBIEE offers. What two options do you have?

A. Create a time table that is joined through a intervening Table so there is no foreign key relationship.
B. Create a Logical Table that is sourced from the time key in the fact table.
C. Create a physical time table in your database.
D. Create a Logical Table that is sourced from a time field in one of your dimension tables.
E. Create an "Opaque View" in the physical layer that contains the time columns from the fact and map it into your physical model.

Answer: C,D

Explanation:
Modeling Time Series Function in OBIEE
Modeling Time Series Data
Time series functions provide the ability to compare business performance with previous time periods, allowing you to analyze data that spans multiple time periods. For example, time series functions enable comparisons between current sales and sales a year ago, a month ago, and so on.
Because SQL does not provide a direct way to make time comparisons, you must model time series data in the Oracle BI repository. First, set up time dimensions based on the period table in your data warehouse. Then, you can define measures that take advantage of this time dimension to use the AGO, TODATE, and PERIODROLLING functions.

NEW QUESTION # 62
Query limits tab can be accessed through________.

A. Security Manager, Application Roles tab, Application role dialog box, Permissions
B. Security Manager, Application Roles tab, Query dialog box, Permissions
C. Security Manager, Application Roles tab, Application role dialog box, Query Properties
D. Security Manager, Query tab, Application role dialog box, Permissions

Answer: A

Explanation:
Explanation/Reference:
Query environment can be managed by setting query limits (governors) in the Repository (RPD) for particular Application Roles. You should always set query limits for particular application roles rather than for individual users.
Steps:
1. Login to Repository using OBIEE Admin Tool
2. Navigate to Manage > Identity
3. Go to Application Role tab, choose the role and double click on it to open.

4. Click on Permissions tab

5. Set the Query Limits. You can limit queries by the number of rows received, by maximum run time, and by restricting to particular time periods. You can also allow or disallow direct database requests or the Populate privilege.

NEW QUESTION # 63
A customer has a requirement for rolling period calculations. What two additional steps will need to be done to enable this in the repository?

A. Designating a chronological keyfor every logical column in the Logical Table Source
B. Designatingachronological key for every level of every dimension hierarchy
C. Clicking the "Time" option in theLogical Dimension Dialog
D. Clicking the "Time" option in the LogicalTable Source Dialog
E. Specifying a sort order in theLogicalTable dialog

Answer: B,C

Explanation:
Creating Logical Time Dimensions
Compared to modeling an ordinary dimension, the time dimension requires just two additional
steps: selecting the Time option in the Logical Dimension dialog, and designating a chronological
key for every level of every dimension hierarchy.
Note: Time dimensions and chronological keys. You can identify a dimension as a time dimension.
At least one level of a time dimension must have a chronological key. The following is a list of
some guidelines you should use when setting up and using time dimensions:
*At least one level of a time dimension must have a chronological key.
*All time series measures using the AGO, TODATE, and PERIODROLLING functions must be on
time levels. AGO, TODATE, and PERIODROLLING aggregates are created as derived logical
columns.
Reference:Oracle Fusion Middleware Metadata Repository Builder's Guide for Oracle Business
Intelligence Enterprise Edition. Working with Logical Dimensions

NEW QUESTION # 64
......

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