CS614-Midterm
1 / 50
Change Data Capture is one of the challenging technical issues in _____________
2 / 50
The input to the data warehouse can come from OLTP or transactional system but not from other third party database.
3 / 50
To measure or quantify the similarity or dissimilarity, different techniques are available. Which of the following option represent the name of available techniques?
4 / 50
Multidimensional databases typically use proprietary __________ format to store pre-summarized cube structures.
5 / 50
For a smooth DWH implementation we must be a technologist.
6 / 50
Normalization effects performance
7 / 50
: An optimized structure which is built primarily for retrieval, with update being only a secondary consideration is
8 / 50
It is observed that every year the amount of data recorded in an organization :
9 / 50
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:
10 / 50
Data mining evolve as mechanism to cater the limitations of _____ systems to deal massive data sets with high dimensionality, new data types, multiple heterogeneous data resources etc...
11 / 50
Many data warehouse project teams waste enormous amounts of time searching in vain for a _______.
12 / 50
NUMA stands for __________
13 / 50
In a traditional MIS system, there is an almost linear sequence of queries.
14 / 50
15 / 50
If w is the window size and n is the size of data set, then the complexity of merging phase in BSN method is___________
16 / 50
17 / 50
Pakistan is one of the five major ________ countries in the world.
18 / 50
Analytical processing uses ____________ , instead of record level access.
19 / 50
The need to synchronize data upon update is called
20 / 50
Cube is a __________ entity containing values of a certain fact at a certain aggregation level at an intersection of a combination of dimensions.
21 / 50
If every key in the data file is represented in the index file then index is :
22 / 50
________ gives total view of an organization
23 / 50
_____________, if fits into memory , costs only one disk I/O access to locate a record by given key.
24 / 50
25 / 50
A data warehouse implementation without an OLAP tool is always possible.
26 / 50
DTS allows us to connect through any data source or destination that is supported by ____________
27 / 50
The goal of ideal parallel execution is to completely parallelize those parts of a computation that are not constrained by data dependencies. The smaller the portion of the program that must be executed __________, the greater the scalability of the computation.
28 / 50
The purpose of the House of Quality technique is to reduce ______ types of risk.
29 / 50
_____________ is a process which involves gathering of information about column through execution of certain queries with intention to identify erroneous records.
30 / 50
Grain is the ________ level of data stored in the warehouse.
31 / 50
Collapsing tables can be done on the ___________ relationships
32 / 50
Naturally Evolving architecture occurred when an organization had a _______ approach to handling the whole process of hardware and software architecture.
33 / 50
Investing years in architecture and forgetting the primary purpose of solving business problems, results in inefficient application. This is the example of _________ mistake.
34 / 50
35 / 50
In _________ system, the contents change with time. :
36 / 50
Taken jointly, the extract programs or naturally evolving systems formed a spider web, also known as
37 / 50
The divide & conquer cube partitioning approach helps alleviate the ____________ limitations of MOLAP implementation.
38 / 50
Transactional fact tables do not have records for events that do not occur. These are called
39 / 50
The users of data warehouse are knowledge workers in other words they are _______in the organization.
40 / 50
41 / 50
Non uniform distribution, when the data is distributed across the processors, is called ______.
42 / 50
_______ is an application of information and data.
43 / 50
De-Normalization normally speeds up
44 / 50
There are many variants of the traditional nested-loop join, if there is an index is exploited, then it is called……
45 / 50
We must try to find the one access tool that will handle all the needs of their users.
46 / 50
To judge effectiveness we perform data profiling twice.
47 / 50
The technique that is used to perform these feats in data mining modeling, and this act of model building is something that people have been doing for long time, certainly before the _______ of computers or data mining technology.
48 / 50
To identify the __________________ required we need to perform data profiling
49 / 50
The goal of star schema design is to simplify ________
50 / 50
Execution can be completed successfully or it may be stopped due to some error. In case of successful completion of execution all the transactions will be ___________
Your score is
The average score is 0%
Restart quiz
