Technology Questions

Q:

What is JDBC Driver ?

Answer

The JDBC Driver provides vendor-specific implementations of the abstract classes provided by the JDBC API. This driver is used to connect to the database.

Report Error

View answer Workspace Report Error Discuss

Subject: Java

0 2005
Q:

Whats the difference between a NSArray and a NSMutableArray?

Answer

A NSArray’s contents can not be modified once it’s been created whereas a NSMutableArray can be modified as needed, i.e items can be added/removed from it.

Report Error

View answer Workspace Report Error Discuss

0 2004
Q:

What is Broadcast ?

Answer

To send data/info to all of the members of the network..( simple 176.16.255.255 for class B network)

Report Error

View answer Workspace Report Error Discuss

0 2002
Q:

What is the difference between an Interface and an Abstract class?

Answer

An abstract class can have instance methods that implement a default behavior. An Interface can only declare constants and instance methods, but cannot implement default behavior and all methods are implicitly abstract. An interface has all public members and no implementation. An abstract class is a class which may have the usual flavors of class members (private, protected, etc.), but has some abstract methods.

Report Error

View answer Workspace Report Error Discuss

Subject: Java

0 2000
Q:

Explain how garbage collection deals with circular referrences?

Answer

The .Net runtime knows about all the references between the objects. It can identify all the circular references that are reachable from the root and hence finalize them to free them all at once if and when needed

Report Error

View answer Workspace Report Error Discuss

Subject: .NET

0 1998
Q:

What is the difference between the communication and transmission

Answer

Transmission is a physical movement of information and concern issues like bit polarity, synchronization, clock etc.


Communication means the meaning full exchange of information between two communication media

Report Error

View answer Workspace Report Error Discuss

0 1998
Q:

What does a Business Analyst do, what are their responsibilities?

Answer

The most important responsibilities of a business systems analysts are as a communication conduit between the stakeholders and the team 


 

Report Error

View answer Workspace Report Error Discuss

0 1998
Q:

Both PL/SQL and Java (or) .NET code can be used to create Oracle stored procedures and triggers. Which of the one should be used and why?

Answer

Even though both PL/SQL and Java (or) .NET can be used, PL/SQL stands above these two in terms of integration overhead. This is because Java is an open source proprietary and Data manipulation is slightly faster in PL/SQL than in Java. 

Report Error

View answer Workspace Report Error Discuss

Subject: Oracle

0 1998