bt8901 smu bsc it summer 2016 (oct/nov 2016 exam) Vth sem assignment

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Bt8901

summer 2016

1. Explain State charts and Activity Diagrams with examples

Answer:

The name of the diagram itself clarifies the purpose of the diagram and other details. It describes different states of a component in a system. The states are specific to a

2 What is Booch methodology? Explain its macro and micro development processes.

Answer: The Booch Methodology

The Booch methodology is a widely used object-oriented method that helps you design your system using the object paradigm. The Booch method consists of the following diagrams:

Ø  Class diagrams

3 Explain the structural things in UML.

Answer: Structural Things

Structural things are the nouns of UML models. These are mostly static parts of a model, representing elements that are either conceptual or physical. In all, there are seven kinds of structural thing

4 Discuss about Extracting Entity Classes. Draw necessary diagram.

Answer: Entity class extraction consists of three steps that are carried out iteratively and incrementally:

Ø  Functional Modeling. Present

5. Explain the Elaboration Phase and Construction Phase of unified process.

Answer:

Elaboration phase:

The primary goal of the Elaboration phase is to establish the ability to build the new system given the financial constraints, schedule constraints, and other kinds of constraints that the development

6. Explain Synchronize-and-Stabilize Team Organization with an example.

Answer:

The systems development life cycle (SDLC), or software development life cycle in systems engineering, information systems and software engineering, is a process of creating or altering

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bt0083 smu bsc it summer 2016 (oct/nov 2016 exam) IVth sem assignment

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PROGRAM

BSc IT

SEMESTER

FOURTH

SUBJECT CODE & NAME

BT0083, Server Side Programming-Theory

Qus:1List and brief any FIVE HTTP Request Methods

Answer:

Qus:2 Explain handling the form elements to retrieve the data from form using servlet API. Give some examples

Answer:

Handling the form elements to retrieve the data from form using servlet API:

HTML forms are used to create good GUI for user interaction. Here you can create Textbox, checkboxes, radio buttons, combo box, and various kinds of GUIs on the forms. After creating forms and GUI, the important step is to consider is the methods to retrieve inform of these forms in servlet. This data can be retrieved either by GET or POST method. In GET method data will be appended in

Q3. Write a note on tracking the sessions using cookies. Give advantages and disadvantages of cookies.

ANS:

There are various techniques of session tracking, they are as follows:

1. Using Cookies

2. Using URL-Rewriting

3. Using Hidden Form Fields

Using Cookies

Definition: Cookies are pieces of data that web server adds in the client browser and later in the web server for

Qus:4 Explain the two JSP architectures.

Answer:

The two JSP architectures:

There are two general approaches you can take when developing Web applications using JSP.

I. Page-centric (Model 1) and

II. Servlet-

Qus:5 Draw and explain the diagram of custom tag life cycle.

Answer:

The diagram of custom tag life cycle:

Q6. Describe the process of deactivating individual expression language statements with example.

Answer:

Deactivating individual expression language statements: In JSP 1.2 pages that need to be ported unmodified across multiple JSP versions (with no web.xml changes), you can replace $ with $, the HTML character entity for $. In JSP 2.0 pages that contain both expression language statements and

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bt0082 smu bsc it summer 2016 (oct/nov 2016 exam) IVth sem assignment

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PROGRAM

BSc IT

SEMESTER

FOURTH

SUBJECT CODE & NAME

BT0082, Visual Basic

Q1. Explain the process of extracting and drawing images using Image list control.

Answer:

The ImageList control is most often used as a container for images and icons that are employed by other controls, such as TreeView, ListView, TabStrip, and ImageCombo controls. For this reason, it makes sense to describe it before any other controls. The ImageList control is invisible at run time, and to display one of the images it contains you must draw it on a form, a PictureBox control, or an Image control, or

Q2. Explain the concept of Inheritance in VB.Net.

Answer:

Although inheritance is hardly the be-all, end-all of OOP, and interfaces are often a better choice, you absolutely should not get the idea that you should avoid using inheritance. Inheritance is a powerful tool that saves you a lot of work if you use it correctly.

“Correctly” simply means

Qus:3 Describe the concept of Exit Try statement in VB.NET with an example.

Answer:

The concept of Exit Try statement in VB.NET with an example:

The Exit Try statement will, under a given circumstance, break out of the Try or Catch block and continue at the Finally block. In the following example, you are going to exit a Catch block if the value of iItems is 0,

Qus:4 Define SQL. Explain the select statement of SQL with examples.

Answer:

SQL:

SQL (pronounced SeeKwel), is short for Structured Query Language, and is a way to query and write to databases (not just Access). The basics are quite easy to learn. If you want to grab all of the records from a

Qus:5 Describe the concept of record navigation in VB.NET.

Answer:

The concept of record navigation in VB.NET:

(i) Move Back One Record at a Time:

To move backwards through the DataSet, we need to decrement the inc counter. This means is deducting 1 from whatever is currently in inc. But we also need to check that inc doesn't go past zero, which is the

Qus:6 Describe the concept of jagged arrays in visual basic with an example.

Answer:

The concept of jagged arrays in visual basic with an example:

Definition – 1: An array of which each element is itself an array is called an array of arrays, or a jagged array.

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bt0081 smu bsc it summer 2016 (oct/nov 2016 exam) IVth sem assignment

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PROGRAM- BSc IT

SEMESTER- FOURTH

SUBJECT CODE & NAME- BT0081, Software Engineering

CREDIT-4

BOOK ID- B1090

MAX. MARKS- 60

Q.1: Explain different kinds of software applications.

ANS:

Software applications can be neatly compartmentalized into different categories.

System software:System software is a collection of programs written to service other programs. Some system software processes complex information structures. Other systems applications process largely indeterminate data. It is

Q.2: What are the Limitations of waterfall model? Explain in brief.

ANS:

1.      The linear sequential model or waterfall model assumes the requirement of a system which can be frozen (baseline) before the design begins. This is possible for systems designed to automate an existing manual system. But for a new system, determining the requirements is difficult as the user does not even know the requirements.

2.       

Q.3: Describe the operation of Data flow model with the help of a block diagram

ANS:

Data-flow model is a way of showing how data is processed by a system. At the analysis level, they should be used to model the way in which data is processed in the existing system. The notations used in these models represents functional processing, data stores and data movements between functions. Data-flow models are

Q.4: Explain the various activities involved in Software Reengineering process model

ANS:

Software reengineering process model that defines size activities, shown in figure. In some cases, these activities occur in a linear sequence, but this is not always the case. For e.g., it may be that reverse engineering may have to

Q.5: Explain Black-Box Testing in detail

ANS:

Black-box testing, also called behavioral testing, focuses on the functional requirements of the software. That is, black-box testing enables the software engineer to derive sets of input conditions that will fully exercise all functional

Q.6: With the help of bock diagram explain how global problem solving can apply a software-driven approach to enhance the efficiency of problem solving.

ANS:

Global problem solving can apply a software-driven approach to enhance the efficiency of problem solving. The effectiveness of these approaches on business performance in terms of the business value created and software project optimization achieved was projected. Business value and project performance

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bt0080 smu bsc it summer 2016 (oct/nov 2016 exam) IVth sem assignment

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PROGRAM

BSc IT

SEMESTER

FOURTH

SUBJECT CODE & NAME

BT0080, Fundamentals of Algorithms

Q1. Explain the Greedy Method and concept of Optimal Storage on Tapes.

Answer:

A greedy algorithm is a mathematical process that looks for simple, easy-to-implement solutions to complex, multi-step problems by deciding which next step will provide the most obvious benefit.

Such algorithms are called greedy because while the optimal solution to each smaller instance will provide an immediate

Q2. Write a note on the following:

a) Multistage Graphs

b) Concept of travelling Salesman Problem

Answer:

A multistage graph is a graph

• G=(V,E) with 

Qus:3 Explain knapsack problem. Write algorithm for it.

Answer:

Knapsack Problem:

Given n objects and a knapsack or bag. Object i has a weight wi, and the knapsack has a capacity m. If a fraction xi, 0 xi 1, of object i is placed into the knapsack, then a profit of Pi xi is earned. The objective is to obtain a

Qus:4 Explain trees and subgraphs with examples.

Answer:

Trees and Subgraphs:

Trees:

A tree is a connected graph without any circuits. The graph in Fig. A, for instance, is a tree. Trees with one, two, three and four vertices are shown in Fig. B. A graph must have at least one vertex, and therefore so must a tree. Some authors allow the null tree, a tree without any vertices. It follows immediately from the definition that a tree has to be a simple graph, that is, having neither a self-loop nor parallel

Q5. State Cook’s theorem.

Prove the theorem “CNF satisfiability is polynomially transformable to the clique problem. Therefore, the clique problem is NP complete.”

Answer:

Proof: Let F=F₁ F₂…….Fq be an expression in CNF, where the Fi’ s are the factors, each Fi is of the form (x_i1+x_i2+…..x_ik) where xij is a literal. Construct an undirected graph G=(V,E) whose vertices are pairs of integers [i,j] for 1≤

Qus:6 Define and explain Hamiltonian circuit and path.

Answer:

Hamiltonian circuit and path:

Hamiltonian Circuit: A Hamiltonian circuit in a connected graph is defined as a closed walk that traverses every vertex of G exactly once, except of course, the starting vertex, at which the walk also terminates. A circuit in a connected graph G is said to be Hamiltonian as it includes every vertex of G. Hence a

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