Technology Questions

Q:

What are the different models used in cluster analysis?

Answer

There are many algorithms that can be used to analyze the database to check the maintenance of all the data sets that are already present. The different types of cluster models include as follows:


- Connectivity models: these are the models that connect one cluster to another cluster. This includes the example of hierarchical clustering that is based on the distance connectivity of one model to another model. 


- Centroid models: these are the models that are used to find the clusters using the single mean vector. It includes the example of k-means algorithm.


- Distribution models: it includes the specification of the models that are statistically distributed for example multivariate normal distribution model.


- Density models: deals with the clusters that are densely connected with one another in the regions having the data space. 


- Group models: specifies the model that doesn’t provide the refined model for the output and just gives the grouping information

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Q:

What is the difference between class and structure?

Answer

Structure: Initially (in C) a structure was used to bundle different type of data types together to perform a particular functionality. But C++ extended the structure to contain functions also. The major difference is that all declarations inside a structure are by default public.
Class: Class is a successor of Structure. By default all the members inside the class are private.

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Subject: C++

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Q:

What is TDM?

Answer

TDM is a digital process that can be applied when the data rate capacity of the transmission  medium is greater than the data rate required by the sending and receiving devices.

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Q:

Describe the use of PL/SQL table?

Answer

PL/SQL tables are scalar arrays that can be referenced by a binary digit. They can be used to store values for later queries and calculations.

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Subject: SQL

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Q:

How would you reverse a doubly-linked list?

Answer

This problem isn't too hard. You just need to start at the head of the list, and iterate to the end. At each node, swap the values of pNext and pPrev. Finally, set pHead to the last node in the list.


Node * pCurrent = pHead, *pTemp;


while (pCurrent)


{


  pTemp = pCurrent->pNext;


  pCurrent->pNext = pCurrent->pPrev;


  pCurrent->pPrev = temp;  


  pHead = pCurrent;


  pCurrent = temp;


}

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Q:

Which platforms does Silverlight support?

Answer

  • Mac OS 

  • Windows Vista 

  • Windows XP SP2 

  • Windows 2000 

  • Windows Server 2003 

  • Linux (Moonlight) 



 

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Subject: Web Technology

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Q:

What is the difference between a contract and a scheduling agreement?

Answer

A scheduling agreement can be made for Consignment, Subcontracting and stock transfer. A contract, also known as a blanket PO, can be made for standard items and can be restricted to a Value or QTY.

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Subject: SAP

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Q:

Are Java and JavaScript the Same?

Answer

No.java and javascript are two different languages.
Java is a powerful object - oriented programming language like C++,C whereas Javascript is a client-side scripting language with some limitations.

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Subject: Web Technology

0 2788