MCA 2nd sem NEW COURSE
2008

SOME SAMPLES ARE GIVEN BELOW

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Data and File Structures- Some Samples

Q.1. Define the term array. How are two-dimensional arrays represented in memory? Explain how address of an element is calculated in a two dimensional array.
Answer. In computer programming languages, an array is a group of objects with the same attributes that can be addressed individually, using such techniques as subscripting.

Arrays can be classified as fixed-sized array.................

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Question 2: What is a sparse matrix? How is it stored in the memory of a computer? Write a function to find the transpose of a sparse matrix using this representation.
Answer. A sparse matrix is a matrix that allows special techniques to take advantage of the large number of zero elements.

When storing and manipulating sparse matrices on a computer, ....................

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Operating System Concepts and Networking - Some Samples

Question 1. Describe the basic characteristics of modern operating system with appropriate examples.

Answer. An operating system (OS) is a software program that manages the hardware and software resources of a computer. A key component of system software, the OS performs basic tasks, such as controlling and allocating memory, prioritizing the processing of instructions, controlling input and output devices, facilitating networking, and managing files. Modern operating systems are able to simulate execution of many processes at once (multi-tasking) even under a ........
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Question 2. Examine the LAN set up at your study centre and answer the following questions: (i) Sketch the diagram showing various components: Switch, Hub, Nods, Cables, Router, and Bridges. (ii) LAN topology (iii) Bandwidth of the channel. (iv) What Networking O/S is installed?

Answer. ................

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Question 3.
(i) What is the difference between network and O/S security?
(ii) List and describe networking supports in Windows 2000 O/S.

Answer. i) Network security: It is protection of networks and their services from unauthorized modification, destruction, or disclosure, and provision of assurance that the network ...........................

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Object Oriented Technologies and Java Programming - Some Samples

(i) What is Object Oriented paradigm? Explain two differences between Object Oriented paradigms of programming languages over Structured paradigm.
Answer. Object oriented is a different approach to programming. It is rather a natural way of programming because in our day to day life, we take notice of the world around us in terms of distinct objects such as: books, ....................................
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(ii) What is message passing? Explain the advantages of message passing.
Answer. Essentially, a message is a structured piece of information sent from one agent to another over a communication channel. Some message................

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