Hyperion Essbase Interview Questions
1.Can
we have multiple meta outlines based on one OLAP model in Integration services?
Ans: Yes
2.What
are LRO’s( Linked Reporting Objects)?
Ans:
They are specific objects like files, cell notes or URL’s associated with
specific data cells of Essbase
database. You can link multiple objects to a
single data cell. These linked objects are stored in the server.
These LRO’s can be exported or imported with
the database for backup and migration activities.
3.What
are the three primary build methods for building dimensions?
Ans:
Generation references
Level
references
Parent-Child references
4.How
does UDA’s impact database size?
Ans:
There will be no impact on the database as the UDA’s doesn’t store data in the
database.
5.Can
we have an meta outline based on two different OLAp models.
Ans:
No.
6.Can we create UDA’s and apply
it to Dense as well as Sparse dimensions?
Ans: Yes
7.Types
of Partitions available in Essbase?
Ans:
Three types of partitions are there.
Transparent
partition: A form of shared partition that provides the ability to access and
manipulate
remote data transparently as though it is part of your
local database. The remote data is retrieved from
the data source each time you request it. Any
updates made to the data are written back to the data source
and become immediately accessible to both
local data target users and transparent data source users
Replicated Partition:
Linked
Partition:
8.What
is hybrid analysis?
Ans: Lower level members and
associated data remains in relational database where as upper level members
and associated data resides in Essbase
database.
9.Why
top-down calculation less efficient than a bottom-up calculation? Being less
efficient, why do we
10.On what basis you will decide
to invoke a serial or parallel calculation method.
Ans:
If we have a single processor, we will use serial calculation but if we have
multiple processors we can break the task into threads and make them run on
different processors.
11.How can you display UDA’s in
reports?
Ans: UDA’s values are never
displayed in the reports and hence do not impact report performance.
12.While
loading the data, you have applied both the selection criteria as well as
rejection criteria to a same record. What will be the outcome?
Ans: The record will be rejected.
13.What are the specified roles
other than Administrator to view sessions, disconnect sessions or kill users
requests for a particular application?
Ans: You should have the role of
Application manager for the specified application.
14.What is block locking system?
Ans:
Analytic services(or Essbase Services) locks the block and all other blocks
which contain the child’s of that block while calculating this block is block
locking system.
15.What
are the three options specified in Username and Password management under
security tab in Essbase server properties.
Ans: 1. Login attempts allowed
before username is disabled.
2. Number of inactive days before
username is disabled.
3. Number of days before user must
change password.
16.Can we have multiple databases
in one single application? Ans: Yes. But only one database per application is recommended.
Depend on which database that you
are going to create. For Example: If you are creating ASO then we can’t create
more that 1 db per application. If you are creating BSO then you can create
more than 1 db per application
17.How is data stored in the
Essbase database?
Ans: Essbase is an file based
database where the data is stored in PAG files of 2 GB each and grows
sequentially.
18.We have created an application
as unicode mode. Can we change it later to non-unicode mode.
Ans: No