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CS614 Data Warehousing Quiz No. 1 Solution and Discussion Fall 2014 Close Date 21st November 2014
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
Question # 8 of 10 ( Start time: 06:57:45 PM ) Total M a r k s: 1
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.
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
Sponsored Links
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
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