What is the role of hub in networks, What is the role of hub in networks? ...

What is the role of hub in networks? The network traffic controller - elements of convential computer networks. Hub is used to link the different computers within the network i

What is a portal?, A portal is a service or a Web site that gives broad ran...

A portal is a service or a Web site that gives broad range of services and resources like e-mail, forums, search engines, weather information, news, on-line shopping, stock quotes.

Map objects to a relational database? , Due to impedance mismatch between r...

Due to impedance mismatch between relational technology and object you need to understand the progress of mapping classes (objects) and their relationships to tables and relationsh

Pessimistic and Optimistic concurrency control?,

Java error handling mechanism, Errors: When a dynamic linking failure or ...

Errors: When a dynamic linking failure or some other "hard" failure in the virtual machine happens, the virtual machine gives an Error. Typical Java programs could not find Error

Explain the order of evaluation of logic operators, Explain the Order of Ev...

Explain the Order of Evaluation of Logic Operators ? When Java sees a && operator or a ||, the expression on the left side of the operator is evaluated first. For instance, con

I want an ehospital project, I am preparing ehopsital project. For the need...

I am preparing ehopsital project. For the needs of hospital in that billing module and patient registration and stores module and e.t.c module is there for hospital needs. Skill

Conditional Operators, I need a chart and how this works with java? The fun...

I need a chart and how this works with java? The functions itself.

Assignement, data structure

data structure

Want a graph database for relationship mapping of entities, Want a graph da...

Want a graph database for relationship mapping of entities Project Description: I want a graph database for relationship mapping of entities, liable peoples. Also, the databa