Correct Answer: - Physical Data Integration is all about creating new system that replicates data from the source systems - This process is done to manage the data independent of the original system - Data Warehouse is the example of Physical Data Integration - The benefits of PDI include data version management, combination of data from various sources, like mainframes, flat files, databases - A separate system is needed for handling vast data volumes
Correct Answer: - UDAI places the data in the source systems - A set of views are defined for providing access the unified view to the clients / customers - Zero latency of data can be propagated from the source system - The generated consolidated data need not require separate storage space - Data history and version management is limited and applied only to the similar type of data - Accessing to the user data overloads on the source systems
3. How do we measure progress in Data Integration?
Correct Answer: Look for the existence of the following items: - Generic Data Models - An Enterprise Data Platform - Identify the Data Sources - Selection of a MDM Product - Implementation of a Customer Master Index or appropriate alternative
4. What are the factors that are addressed to integrate data?
Correct Answer: Following are the data integration factors: - Sub set of the available data should be optimal - Noise/distortion estimation levels because of sensory/processing conditions at the time of data collection - Accuracy, spatial and spectral resolution of data - Data formats, storage and retrieval mechanisms - Efficiency of computation for integrating data sets to reach the goals
Correct Answer: Following are the benefits of data integration: - Makes reporting, monitoring, placing customer information across the enterprise flexible and convenient - Data usage is efficient - Cost Effective - Risk adjusted profitability management as it allows accurate data extraction - Allows timely and reliable reporting, as data quality is the prime technology for business challenges
Correct Answer: Optimized code tends to run faster and make more efficient use of the system?s resources Optimized codes are also less susceptible to errors and take lesser space in memory and in file size
7. In Windows XP , what does the letter XP stands for?
Correct Answer: The letters XP actually stands for eXPerience It was designed as an enhancement of Windows 2000, with a totally different and more attractive user interface/console
Correct Answer: NTFS is short for New Technology File System It is the standard file system that is being used by operating systems starting from Windows NT, Windows 2000, Windows XP, and even the newer versions like Vista and 7 It was originally designed to have a better performance on file storage and retrieval under the Windows NT family
10. Why is it that you cannot overload the scope resolution operator (::)?
Correct Answer: The main reason why the scope resolution operator (::) cannot be overloaded is that only operators that take in values as parameters can be overloaded The scope resolution operator does not take a value as parameter