CS614 - Data Warehousing
Quiz No.1 April 26,2012
It is observed that every year the amount of data recorded in an organization
Select correct option:
Doubles
Remains same as previous year
Triples
Quartiles
Question # 2 of 10 ( Start time: 06:50:55 PM ) Total M a r k s: 1
_______ is an application of information and data.
Select correct option:
Knowledge
Intelligence
Power
Education
Question # 3 of 10 ( Start time: 06:52:16 PM ) Total M a r k s: 1
Data Warehouse is about taking / colleting data from different ________ sources.
Select correct option:
Harmonized
Identical
Homogeneous
Heterogeneous
Question # 4 of 10 ( Start time: 06:53:46 PM ) Total M a r k s: 1
The need to synchronize data upon update is called
Select correct option:
Data Imitation
Data Manipulation
Data Replication
Data Coherency
Question # 5 of 10 ( Start time: 06:54:29 PM ) Total M a r k s: 1
________ gives total view of an organization
Select correct option:
OLAP
OLTP
Data Warehouse
Database
Suppose the amount of data recorded in an organization is doubled every year. This increase is __________ .
Select correct option:
Linear
Quadratic
Exponential
Logarithmic
Node of a B-Tree is stored in memory block and traversing a B-Tree involves ______ page faults.
Select correct option:
O (n lg n)
O (lg n)
O (n)
O (n2)
The growth of master files and magnetic tapes exploded around the mid- _______.
Select correct option:
1950s.
1960s.
1970s.
1980s.
The input to the data warehouse can come from OLTP or transactional system but not from other third party database.
Select correct option:
True
False
In _________ system, the contents change with time.
OLTP
ATM
DSS
OLAP
Relational databases allow you to navigate the data in ____________ that is appropriate using the primary, foreign key structure within the data model.
Only One Direction
Any Direction
Two Direction
None of these
Naturally Evolving architecture occurred when an organization had a _______ approach to handling the whole process of hardware and software architecture.
Relaxed
Good
Not Relaxed
None
A single database, couldn't serve both operational high performance transaction processing and DSS, analytical processing, all at the same time.
True
False
Data Warehouse is about taking / colleting data from different Heterogeneous sources.
Harmonized
Identical
Homogeneous
Heterogeneous
________ gives total view of an organization
Select correct option:
OLAP
OLTP
Data Warehouse
Database
The input to the data warehouse can come from OLTP or transactional system but not from other third party
database.
Select correct option:
True
False
The need to synchronize data upon update is called
Select correct option:
Data Imitation
Data Manipulation
Data Replication
Data Coherency
B-Tree is used as an index to provide access to records
Select correct option:
Without scanning the entire table
By scanning the entire meta data
By scanning the entire table
None of these
For good decision making, data should be integrated across the organization to cross the LoB (Line of Business). This is to give the total view of organization from:
Owner's Perspective
Decision Maker Perspective
Customer's Perspective
Employee's Perspective
________ gives total view of an organization
OLAP
OLTP
Data Warehouse
Database
Relational databases allow you to navigate the data in ____________ that is appropriate using the primary, foreign key structure within the data model.
Select correct option:
Only One Direction
Any Direction
Two Direction
None of these
B-Tree is used as an index to provide access to records
Without scanning the entire table
By scanning the entire meta data
Scanning the entire table
None of these
In _________ system, the contents change with time.
OLTP OLTP
ATM
DSS
OLAP
The input to the data warehouse can come from OLTP or transactional system but not from other third party database.
Select correct option:
True
False
Ad-hoc access means to run such queries which are known already.
True
False
The need to synchronize data upon update is called
Data Imitation
Data Manipulation
Data Replication
Data Coherency
The users of data warehouse are knowledge workers in other words they are _________ in the organization.
DWH Analyst
Decision maker
Database Administrator
Manager
Data Warehouse is about taking / colleting data from different ________ sources.
Harmonized
Identical
Homogeneous
Heterogeneous
It is observed that every year the amount of data recorded in an organization
Doubles
Remains same as previous year
Triples
Quartiles
Zindagi mein 2 Logo ka buhat khayal rahkoooo
2nd woh jiss ko tum ney har dukh me pukaara hoo (Mother)
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