MCQ Bank
Which of the following activity executes parallel with all other activities in Kimball’s DWH development approach?
- A) Deployment
- B) Project Planning
- C) Requirement elicitation
- D) Project management
As opposed to the outcome of classification, estimation deals with __________ valued outcome.
- A) Isolated
- B) Continuous
- C) Discrete
- D) Distinct
In context of data mining definition, the term “nontrivial” means:
- A) Discovering information is a simple task
- B) Discovering information is a complex task
- C) We can not discover information
- D) We simply find things rather than discovery
Bill Inmon argues that requirements are well understood only after
- A) Data warehouse is populated
- B) They extracted and verified
- C) All the schemas are defined
- D) They are documented
Which of the following activity/activities is/are part of project planning phase in Kimballs DWH development approach?
- A) Establish the preliminary scope and justification
- B) Assess organization's readiness for a data warehouse initiative
- C) All of the given options
- D) Obtain resources
In context of the most fundamental data warehouse life cycle model, which of the following is NOT one of the data warehouse design activities?
- A) End-user interviews and re-interviews
- B) Source system cataloguing
- C) System vision development
- D) Definition of key performance indicators
Mining multi dimensional databases allow users to:
- A) Analyze the data
- B) Summarize the data
- C) All of the given options
- D) Categorize the data
As per Kimball, ______ is the main operational process
- A) Schema design
- B) Requirement extraction
- C) Business process
- D) Goal design
As per Bill Inmon, a data warehouse, in contrast with classical applications is:
- A) Resource driven
- B) Time sensitive
- C) Data driven
- D) Requirement driven
The first step of the “12-steps data warehouse implementation approach” of Shaku Atre is:
- A) Data acquisition and cleansing
- B) Planning system resources
- C) Finding system scope
- D) Finding user needs
Vertically wide data means:
- A) Dataset has partitioning skews
- B) Dataset has attribute skews
- C) Dataset has large no. of attributes
- D) Dataset has large no. of records
Which of the following is NOT one of the activities of “Maintenance and Growth” phase in Kimball’s DWH development approach?
- A) Technical Education
- B) Program Support
- C) Education
- D) Interface Deployment
Waterfall is a/an ______ model
- A) Iterative
- B) Object Oriented
- C) Rapid development
- D) Simple linear sequential
The _______ phase of fundamental data warehouse life cycle model includes data warehouse daily maintenance activities
- A) Enhancement
- B) Deployment
- C) Maintenance
- D) Operation
An effective user education program includes, among others, the following guideline(s):
- A) All of the given options
- B) Understand the audience, don’t overwhelm
- C) Train after delivery of data and analytic applications
- D) Postpone education, if DWH not ready
________ is the technique in which existing heterogeneous segments are reshuffled, relocated into homogeneous segments.
- A) Aggregation
- B) Partitioning
- C) Segmentation
- D) Clustering
Which of the following is NOT one of the possible pitfalls in DWH Life Cycle & Development?
- A) Not having multiple servers
- B) None of the given options
- C) Low priority for OLAP Cube Construction
- D) Improper documentation
Technical architecture design supports the communication about technical requirements:
I) Within the team
II) Upward to management
III) Outward to vendors
- A) (I) only
- B) (III) Only
- C) (II) Only
- D) (I), (II) and (III)
Normally the term “DWH face to the business user” refers to:
- A) Lifecycle technology track
- B) Lifecycle Analytical Applications track
- C) Lifecycle Maintenance track
- D) Lifecycle Data track
Normally the input data structure (a database table) for a data mining algorithm:
- A) Has more number of records than attributes
- B) Has more number of attributes than records
- C) Has limited amount of relations
- D) Has limited amount of data