CS614-Midterm
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If every key in the data file is represented in the index file then index is :
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30.Data Warehouse is about taking / colleting data from different ________ sources:
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in agriculture extension is that pest population beyond which the benefit of spraying outweighs levels
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To measure or quantify the similarity or dissimilarity, different techniques are available. Which of the following option represent the name of available techniques?
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The goal of ______is to look at as few block as possible to find the matching records.
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5 million bales.
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_________ breaks a table into multiple tables based upon common column values.
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DTS allows us to connect through any data source or destination that is supported by ____________
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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 ___________
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Suppose the amount of data recorded in an organization is doubled every year. This increase is __________ .
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The purpose of the House of Quality technique is to reduce ______ types of risk.
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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.
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The Kimball s iterative data warehouse development approach drew on decades of experience to develop the _________.
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When performing objective assessments, companies follow a set of principles to develop metrics specific to their needs, there is hard to have “one size fits all” approach. Which of the following statement represents the pervasive functional forms?
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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.
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The goal of star schema design is to simplify ________
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_____________ is a process which involves gathering of information about column through execution of certain queries with intention to identify erroneous records.
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The degree of similarity between two records, often measured by a numerical value between _______, usually depends on application characteristics.
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Pre-computed _______ can solve performance problems
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Pipeline parallelism focuses on increasing throughput of task execution, NOT on __________ sub-task execution time.
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The users of data warehouse are knowledge workers in other words they are _______in the organization.
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The input to the data warehouse can come from OLTP or transactional system but not from other third party database.
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Which statement is true for De-Normalization?
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Analytical processing uses ____________ , instead of record level access.
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Data mining is a/an ______ approach , where browsing through data using mining techniques may reveal something that might be of interest to the user as information that was unknown previously.
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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...
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During the application specification activity, we also must give consideration to the organization of the applications.
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For a DWH project, the key requirement are ________ and product experience.
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_______________, if fits into memory, costs only one disk I/O access to locate a record by given key.
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Focusing on data warehouse delivery only often end up _________.
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Naturally Evolving architecture occurred when an organization had a _______ approach to handling the whole process of hardware and software architecture.
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If some error occurs, execution will be terminated abnormally and all transactions will be rolled back. In this case when we will access the database we will find it in the state that was before the ____________.
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A data warehouse implementation without an OLAP tool is always possible.
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People that design and build the data warehouse must be capable of working across the organization at all levels
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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.
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Slice and Dice is changing the view of the data.
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Many data warehouse project teams waste enormous amounts of time searching in vain for a _______.
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Data Transformation Services (DTS) provide a set of _____ that lets you extract, transform, and consolidate data from disparate sources into single or multiple destinations supported by DTS connectivity.
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In horizontal splitting, we split a relation into multiple tables on the basis of
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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.
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_____modeling technique is more appropriate for data warehouses.
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_______________, if too big and does not fit into memory, will be expensive when used to find a record by given key.
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The divide & conquer cube partitioning approach helps alleviate the ____________ limitations of MOLAP implementation.
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49 / 50
De-Normalization normally speeds up
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____________ in agriculture extension is that pest population beyond which the benefit of spraying outweighs its cost.
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