Technology Questions

Q:

What gross data rate does GPRS provide?

Answer

- GPRS provide gross data rate of 22.80 KBPS / time slot
- Voice uses only 13KBPS/ time slot and the rest is consumed by Error Correction Code
- Error connection code is utilized for detecting and correcting the transmission errors
- As voice is compressed, the usage of Error connection code is mandatory

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Q:

The EIB field which gives the last CICS command executed is?

Answer

EIBRCODE

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Q:

Which kind of inheritance is not supported directly through classes in java?

A) Multilevel B) Multiple
C) Single D) Hirarcheal
 
Answer & Explanation Answer: B) Multiple

Explanation:

Multiple inheritance is not supported directly but it is achieved through the concept of Interface

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Filed Under: Java
Job Role: Software Architect

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Q:

Why do we need wrapper classes in Java?

Answer

Dealing with primitives as objects is easier at times. Most of the objects collection store objects and not primitive types. Many utility methods are provided by wrapper classes. To get these advantages we need to use wrapper classes. As they are objects, they can be stored in any of the collection and pass this collection as parameters to the methods.


 


Features of the Java wrapper Classes:


- Wrapper classes convert numeric strings into numeric values.


- The way to store primitive data in an object.


- The valueOf() method is available in all wrapper classes except Character


- All wrapper classes have typeValue() method. This method returns the value of the object as its primitive type.

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Subject: Java

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Q:

What is the purpose of Buffer class in Node.js?

Answer

Buffer class could be a global class and may be accessed in application without importing buffer module. A Buffercould be a quite an array of integers and corresponds to a raw memory allocation outside the V8 heap. A Buffer can not be resized.

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Subject: Web Technology
Job Role: Software Architect

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Q:

What is a linked server in SQL server?

Answer

It enables SQL server to address diverse data sources like OLE DB similarly. It allows Remote server access and has the ability to issue distributed queries, updates, commands and transactions.

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Subject: SQL

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Q:

What is the difference in responsibilities of Programmers and QA analyst?

Answer

The differences in responsibilities are listed below:


 


- QA is concern for Process Quality and Programmers are concern for Product Quality.


- QA ensure that the processes used for developing the product of high quality where as programmers used these processes so that end product is of good quality.


- Processes are decided by QA. Programmers are supposed to follow the processes so that they can produce a good quality product.


- Any issue found during execution of process by the programmers is communicated to the QA so that they can improve the process.

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Subject: QA Testing

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Q:

What is the diff between RDO and ADO?

Answer

RDO is Hierarchy model where as ADO is Object model. ADO can access data from both flat files as well as the data bases. I.e., It is encapsulation of DAO, RDO , OLE that is why we call it as OLE-DB Technology. 

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