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Exam Code: C2090-914
Exam Name: IBM (System Administration for Red Brick Decision Server Version 6)
One year free update, No help, Full refund!
Total Q&A: 153 Questions and Answers
Last Update: 2014-01-20
C2090-914 Free Demo Download: http://www.itcertking.com/C2090-914_exam.html
NO.1 Views are useful for a wide variety of purposes, including:
A.Decreasing security
B.Simplifying query constraints
C.Making administrative changes, such as database schema design changes, visible to the
users
D.None of the above
Correct:B
IBM C2090-914 C2090-914
NO.2 Which of the following describes a conformed dimension:
A.Dimensions that have built-in hierarchies
B.A dimension table that can be shared by one or more fact tables
C.A set of attributes that change over time
D.All of the above
Correct:B
IBM C2090-914 C2090-914
NO.3 What operation is not performed as part of single pass loading by the Red Brick TMU?
A.Datatype Conversion
B.Referential Integrity Checking
C.Index building
D.Table Reorganization
Correct:D
IBM C2090-914 C2090-914
NO.4 A logical model contains which of the following attributes:
A.technology dependent
B.includes data types and other technology components
C.a picture representation of business rules and relationships
D.contains an indexing strategy
E.a and b
F.b and c
Correct:C
IBM C2090-914 C2090-914
NO.5 In cases where data is known to be skewed, the recommended target index domain
should be:
A.small
B.normal
C.large
D.hybrid
Correct:D
IBM C2090-914 C2090-914
NO.6 The _____________ collects statistics for the dynamic statistic tables (DSTs) and
performs the
actions specified by ALTER SYSTEM commands.
A.listener thread (rbwlsnr)
B.process checker thread (rbwpchk)
C.administration Daemon Process (rbwadmd)
D.Red Brick API thread (rbwapid)
Correct:C
IBM C2090-914 C2090-914
NO.7 Decision-Support systems have (among others) the following characteristics
A.Relational integrity
B.Join paths based on business relations
C.No redundancy
D.Both A and B
E.A, B and C
Correct:D
IBM C2090-914 C2090-914
NO.8 Fact tables in a data warehouse generally contain:
A.aggregate data
B.descriptive text
C.detail data
D.both a and b
E.both a and c
Correct:E
IBM C2090-914 C2090-914
NO.9 The fillfactor should always be set to 100% in cases of:
A.Data spaces
B.Star indexes
C.TMU_REORG TEMPSPACE
D.Small domain target indexes
Correct:D
IBM C2090-914 C2090-914
NO.10 An ideal DSS STAR schema is said to be ___________ whereas a typical OLTP
schema is said to
be highly _______________.
A.Normalized/denormalized
B.Factual/Dimensional
C.Denormalized/normalized
D.Currrent/historical
Correct:C
IBM C2090-914 C2090-914
NO.11 The 'default' Red Brick Decision Server index is a:
A.Star Index
B.Target Index
C.B-Tree Index
D.Deferred Index
Correct:C
IBM C2090-914 C2090-914
NO.12 Red Brick Decision Server is implemented on Windows NT by a ___________ that runs
as a
___________.
A.single multithreaded process, Windows NT service
B.Windows NT service, single multithreaded process
C.NTFS file system, Windows NT service
D.none of the above
Correct:A
IBM C2090-914 C2090-914
NO.13 Which of the following definitions describe the STAR index?
A.A sorted list of concatenated row IDs from the dimension tables named in the index key
B.A bitmap index based on fact table rows
C.An index built over multiple fact table columns
D.A multi-table join index based on fact table foreign key values
E.a and b
F.a, b, c, and d
G.a, c, and d
H.c and d
Correct:G
IBM C2090-914 C2090-914
NO.14 For a dimension table to participate in a STAR index, the table must be created with
the ____
specification.
A.CONSTRAINT
B.MAX ROWS PER SEGMENT
C.DATA IN
D.DEFAULT
Correct:B
IBM C2090-914 C2090-914
NO.15 The purpose of the fill factor is:
A.To tell a node when to split
B.To reserve extra space in each node
C.To specify when a node is 100% full
D.None of the above
Correct:B
IBM C2090-914 C2090-914
NO.16 Target indexes and multi-column B-Tree on the foreign key columns of a fact table
support:
A.Natural join
B.TARGETJoin
C.Star index
D.Clustered index
Correct:B
IBM C2090-914 C2090-914
NO.17 The size of the memory work area for building indexes is set by which parameter?
A.INDEX TEMPSPACE
B.INDEX TEMPSPACE THRESHOLD
C.INDEX MAXSPILLSPACE
D.INDEX DIRECTORY MAXSIZE
Correct:B
IBM C2090-914 C2090-914
NO.18 Which of the following is NOT a valid Table Management Utility format?
A.FORMAT UNLOAD
B.FORMAT IBM SEPARATED BY
C.FORMAT AGGREGATED
D.FORMAT IBM VARIABLE
E.FIXED
Correct:C
IBM C2090-914 C2090-914
NO.19 To specify that the input file is to be read from standard-in, the following INPUTFILE
clause
should be used
A.INPUTFILE ' '
B.INPUTFILE '<'
C.INPUTFILE 'STDIN'
D.INPUTFILE '-'
Correct:D
IBM C2090-914 C2090-914
NO.20 Any table that is referenced by another table must have a:
A.TARGETindex
B.STARindex
C.Foreign key
D.Primary key
Correct:D
IBM C2090-914 C2090-914
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