Sunday 24 September 2017

mca5041 smu mca summer 2017 (oct/nov 2017 exam) Vth sem assignment

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Mca5041
summer 2017
1 What is reflective middleware? Write its advantages.

Answer: Reflective middleware is also known as component-based middleware. A component is termed as a program that performs a particular function and is designed in such a manner that it can easily be


2 Define Client/server computing. In Client/server computing, list the responsibilities of client and server.

Answer: Client/server computing is technology that facilitates an organisation to effectively manage its

3 Describe about 3G. What are the typical 3G standards? List few applications used on a 3G network.

Answer: 3G, also called Tri-Band 3G, is a set of standards which is used for mobile telecommunication services and mobile devices related to the IMT-2000 specifications formulated by ITU. This standard is used to offer various services on cell phones, such as video calls, internet

4 Describe briefly:
a) HTTP
b) CGI
c) Servlet
d) RMI
e) Socket

Answer: a) HTTP
The Hypertext Transfer Protocol (HTTP) is a protocol for distributed, collaborative, information systems. In


5 Differentiate between Stateful and Stateless session bean

Answer: Stateful session beans are used where the state of the bean requires to be retained so that the same client can use it for further method invocations. A good example of a Stateful session bean is the shopping cart

6 Explain the different components of the Android operating system. What are native Android applications?

Answer: Some of the components used to develop an Android application are as follows:
·         Activities: It is implemented when an application has a visible user interface (UI).
·         Services: It


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