CS614 Midterm Online Quiz

The automated, prospective analyses offered by data mining move beyond the analysis of past events provided by respective tools typical of ___________.

Pre-computed _______ can solve performance problems

DSS queries do not involve a primary key

A dense index, if fits into memory, costs only ______ disk I/O access to locate a record by given key.

Companies collect and record their own operational data, but at the same time they also use reference data obtained from _______ sources such as codes, prices etc.

Slice and Dice is changing the view of the data.

Naturally Evolving architecture occurred when an organization had a _______ approach to handling the whole process of hardware and software architecture.

Change Data Capture is one of the challenging technical issues in _____________

Focusing on data warehouse delivery only often end up _________.

The goal of star schema design is to simplify ________

Grain is the ________ level of data stored in the warehouse.

The purpose of the House of Quality technique is to reduce ______ types of risk.

The key idea behind ___________ is to take a big task and break it into subtasks that can be processed concurrently on a stream of data inputs in multiple, overlapping stages of execution.

_____modeling technique is more appropriate for data warehouses.

Multi-dimensional databases (MDDs) typically use ___________ formats to store pre-summarized cube structures.

DTS allows us to connect through any data source or destination that is supported by ____________

If every key in the data file is represented in the index file then index is :

For a given data set, to get a global view in un-supervised learning we use

All data is ______________ of something real. I An Abstraction II A Representation Which of the following option is true?

The performance in a MOLAP cube comes from the O(1) look-up time for the array data structure.

The degree of similarity between two records, often measured by a numerical value between _______, usually depends on application characteristics.

_______ is an application of information and data.

_____________ is a process which involves gathering of information about column through execution of certain queries with intention to identify erroneous records.

To measure or quantify the similarity or dissimilarity, different techniques are available. Which of the following option represent the name of available techniques?

The Kimball s iterative data warehouse development approach drew on decades of experience to develop the _________.

The STAR schema used for data design is a __________ consisting of fact and dimension tables. :

Virtual cube is used to query two similar cubes by creating a third “virtual” cube by a join between two cubes.

Pipeline parallelism focuses on increasing throughput of task execution, NOT on __________ sub-task execution time.

Analytical processing uses ____________ , instead of record level access.

Data mining evolve as a mechanism to cater the limitations of ________ systems to deal massive data sets with high dimensionality, new data types, multiple heterogeneous data resources etc.

Taken jointly, the extract programs or naturally evolving systems formed a spider web, also known as

With data mining, the best way to accomplish this is by setting aside some of your data in a vault to isolate it from the mining process; once the mining is complete, the results can be tested against the isolated data to confirm the model's _______.

____________ in agriculture extension is that pest population beyond which the benefit of spraying outweighs its cost.

A single database, couldn‟t serve both operational high performance transaction processing and DSS, analytical processing, all at the same time.

Collapsing tables can be done on the ___________ relationships

Non uniform distribution, when the data is distributed across the processors, is called ______.

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 ___________

A data warehouse implementation without an OLAP tool is always possible.

Data mining uses _________ algorithms to discover patterns and regularities in data.

In a traditional MIS system, there is an almost linear sequence of queries.

In _________ system, the contents change with time. :

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.

5 million bales.

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:

The purpose of the House of Quality technique is to reduce ______ types of risk.

For a relation to be in 4NF it must be:-

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.

The users of data warehouse are knowledge workers in other words they are _______in the organization.

The goal of ideal parallel execution is to completely parallelize those parts of a computation that are not constrained by data dependencies. The __________ the portion of the program that must be executed sequentially, the greater the scalability of computation.

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...