What is the difference between an external iterator and an internal iterator? Describe an advantage of an external iterator.

An internal iterator is implemented with member functions of the class that has items to step through. An external iterator is implemented as a separate class that can be “attach” to the object that has items to step through. An external iterator has the advantage that many difference iterators can… Continue reading

Can anyone tell me about Secure Socket Layer? How to make use of the technology?

Secure Sockets Layer (SSL) and Transport Layer Security (TLS), its successor, are cryptographic protocols which provide secure communications on the Internet. There are slight differences between SSL 3.0 and TLS 1.0, but the protocol remains substantially the same. The term “SSL” as used here applies to both protocols unless clarified… Continue reading

What are web services?

Web services are a core technology provided by the .NET Framework. By using web services, companies can more easily integrate internal applications, but they can also access services exposed by other businesses. By combining web services exposed on the Internet with internally built services, companies can create a wide variety… Continue reading