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# CS614 QUIZ NO: 4 END DATE: 18-06-2012

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Quiz no# 4              cs614 bu UMAIR SID

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.

OLTP            100%

OLAP

DSS

DWH

________ is the technique in which existing heterogeneous segments are reshuffled, relocated into homogeneous segments.

Clustering

Aggregation

Segmentation

Partitioning

If someone told you that he had a good model to predict customer usage, the first thing you might try would be to ask him to apply his model to your customer _______, where you already knew the answer.

Base

Drive

File

Log

With data mining, the best way to accomplish this is by setting aside some of your data in a ________ 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 validity.

Cell

Disk

Folder

Vault

In nested-loop join case, if there are ‘M’ rows in outer table and ‘N’ rows in inner table, time complexity is

O (M log N)

O (log MN)

O (MN)

O (M + N)

In contrast to statistics, data mining is ______ driven.

Assumption

Knowledge

Human

Database

The automated, prospective analyses offered by data mining move beyond the analyses of past events provided by _____________ tools typical of decision support systems.

Introspective

Intuitive

Reminiscent

Retrospective

The technique that is used to perform these feats in data mining is called modeling, and this act of model building is something that people have been doing for a long time, certainly before the _________ of computers or data mining technology.

Access

Ascent

Avowal

The automated, prospective analyses offered by data mining move beyond the analyses of past events provided by retrospective tools typical of ______________ .

OLTP

OLAP

Decision Support Systems

None of these

Data mining derives its name from the similarities between searching for valuable business information in a large database, for example, finding linked products in gigabytes of store scanner data, and mining a mountain for a _________ of valuable ore.

Furrow

Streak

Trough

Vein

Classification consists of examining the properties of a newly presented observation and assigning it to a predefined ____________.

Class

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

Mathematical

Computational

Statistical

Data mining derives its name from the similarities between searching for valuable business information in a large database, for example, finding linked products in gigabytes of store scanner data, and mining a mountain for a _________ of valuable ore.

Furrow

Streak

Trough

Vein

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 _______.

Validity

Security

Integrity

There are many variants of the traditional nested-loop join. If there is an index and that index is exploited, then it is called

Naive nested-loop join

Index nested-loop join

Temporary index nested-loop join

There are many variants of the traditional nested-loop join. When the entire table is scanned it is called

Index nested-loop join

Naive nested-loop join

Temporary index nested-loop join

hi dear here is the quiz of the day .. of CS614 #4

THX ........

UMAIR SID

Attachments:

thanks

thanks a lot

tell me plz

yah to 1st aur 2nd and 3rd quiz hy jb ky abi to 4th quiz hy kia repat huy quiz

solve my problem

CS614 - Data Warehousing

Quiz No.4 June 18,2012

Attachments:

thanks a lot

yah to 1st aur 2nd and 3rd quiz hy jb ky abi to 4th quiz hy kia repat huy quiz

tell me

yes check akre ley yehi question same aa rahey hain

koi to 4th quiz load kr dy

yah to 1st aur 2nd and 3rd quiz hy jb ky abi to 4th quiz hy kia repat huy quiz

b

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