MCQ Bank
In context of clustering, the term “distance” means:
- A) The relation of a record with corresponding record in child table
- B) None of the given options
- C) The difference between the primary keys of two records
- D) Similarity/dissimilarly of records
In context of data mining definition, the term “value” means:
- A) Importance of hidden patterns discovered
- B) The index location of the record
- C) Numerical or string measure assigned to an attribute
- D) The primary key of table
Waterfall model is appropriate when
- A) When resources are limited
- B) When the budget is low
- C) Requirements are clearly defined
- D) When the deadline is strict
Goal driven approach of data warehouse development was result of ______ work
- A) Bill Inmon
- B) Ralph Kimball
- C) Böhnlein and Ulbrich-vom
- D) Westerman
Users do not care, how advance the front end of your DWH is, what they care is that:
- A) Tables should be properly denormalized
- B) They should get information in timely manner and the way they want
- C) Proper partitioning technique should be used
- D) At least star or snow flake schema should be implemented
“What means What”. The phrase refers to:
- A) Transformed data
- B) Internal representations
- C) Meta data
- D) External data
In context of requirement definition phase of Kimball’s DWH development approach, ________ is positioned as a findings review and prioritization meeting.
- A) Requirement configuration
- B) Requirements wrap-up presentation
- C) Scope definition
- D) System analysis
A typical cycle of implementing the change in DWH comprises of the sequence:
- A) Production -> QA -> Development
- B) Production -> Development -> QA
- C) Development-> QA -> Production
- D) Development -> Production -> QA
Which of the following is/are example(s) of static attributes?
- A) Employee Date of Birth
- B) Employee Name
- C) Employee blood Group
- D) All of the given options
Which of the following is NOT one of the methodologies for Data Warehouse project development?
- A) Data Driven
- B) Goal Driven
- C) System Driven
- D) User Driven
In data mining, initially you _____ what you are looking for.
- A) May or may not know
- B) None of the given options
- C) Know
- D) Don’t know
Which of the following is NOT one of the three parallel tracks in Kimballs approach?
- A) Lifecycle Maintenance track
- B) Lifecycle Data track
- C) Lifecycle technology track
- D) Lifecycle Analytical Applications track
________ refers to the overall process of discovering useful knowledge from data and data mining refers to a particular step in this process.
- A) Statistics
- B) Clustering
- C) Information cleansing
- D) Knowledge discovery in database
In ________learning you don’t know the number of clusters and no idea about their attributes.
- A) Supervised learning
- B) Multi Dimension modeling
- C) None of the given options
- D) Unsupervised learning
A top down implementation approach is useful when
- A) Technology is mature and well understood
- B) Business objectives are unclear
- C) Problem to be solved are not well documented
- D) Organization can not implement latest technologies
_____ says that as far as company goals are concerned, the entire company pursues in the same direction
- A) Bohnlein
- B) Kimball
- C) Bill Inmon
- D) Westerman
Horizontally wide data means:
- A) Dataset has large no. of records
- B) Dataset has attribute skews
- C) Dataset has large no. of attributes
- D) Dataset has partitioning skews
Spiral model is ________
- A) All of the given options
- B) An iterative model
- C) Risk oriented model
- D) Sequence of waterfall model
In Four Cell Quadrant Technique, The quadrant's vertical axis refers to:
- A) The potential impact or value to the business
- B) Scope
- C) Feasibility
- D) Resources available
Which of the following is the most ignored step during data warehouse development
- A) Schema validation
- B) The requirement verification
- C) The vision definition
- D) Success criteria development