mca5043 smu mca Fall 2015 V sem assignment

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PROGRAM-MCA

SEMESTER-V

SUBJECT CODE & NAME-mca5043– Data Warehousing and Data Mining

CREDIT-4

BK ID-B1633

MAX. MARKS-60

Q1. Differentiate between OLTP and Data Warehouses.

Answer:

Differentiate Data Warehouse database and OLTP Databases:

2. Explain the Data Warehouse Kimball life cycle. 10

Answer.

Data Warehouse Kimball life cycle

The Kimball Lifecycle is a

3. Describe about Hyper Cube and Multicube 5+5

Answer.

Hyper Cube and Multicube

Multidimensional databases can present their data to an application using two types of cubes: hypercubes and multicubes.

4. List and explain the Strategies for data reduction. 5*2

Answer.

Strategies for data reduction

Data reduction: Obtain a reduced representation of the data set that is much smaller in volume but yet produces the same (or almost the

5. Describe K-means method for clustering. List its advantages and drawbacks. 5+5

Answer.

K-means method for clustering

k-means clustering is a method of vector quantization, originally from signal processing, that is popular for cluster analysis in data mining. k-means clustering aims to partition n observations into k clusters in which each observation belongs to the cluster with the nearest mean, serving as a prototype of the cluster. This results in a partitioning of the data space

6. Describe about Multilevel Databases and Web Query Systems 5+5

Answer.

Multilevel Databases and Web Query Systems

Multilevel Databases

A multilevel database system (MDBMS) supports the application of a multilevel policy for regulating access to the database objects. In this approach

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mca5033 smu mca Fall 2015 V sem assignment

Mca5033

Fall 2015

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1 Explain different concurrency control problems.

Answer: In information technology and computer science, especially in the fields of computer programming, operating systems, multiprocessors, and databases, concurrency control ensures that correct

2 What are the different strategies of OSS licensing? Explain briefly.

Answer: OSS licensing strategies which are given below:

Ø  Expansion strategy: It is an open source demonstration of the “law of conservation of modularity” which says that a single layer of a software stack is "modular and agreeable" permitting adjacent software layers to be "expanded”.

Ø  Dual license strategy: In the

3 Explain the SELECT and PROJECT operations.

Answer: Relational Algebra Operators are

4 What is a Trigger? Describe trigger creation in detail.

Answer: SQL trigger is a set of SQL statements stored in the database catalog and is executed or fired whenever an

5 Write short notes on:

a) Ingres

b) Postgres

c) Postgres95

d) PostgreSQL7

e) PostgreSQL8

Answer: Ingres

Ingres, a research project to create a relational database, was a project in the early 1970s at the University of California, Berkeley. This was the starting of the research and later many other databases were

6 Describe briefly about the experimental evaluation. Write the significance of generic benchmarks.

Answer: The performance of a database system can be evaluated with bench marks. Probably the most popular and widely accepted is TPC-C (it is a benchmark tool by TPC (Transaction processing Performance Council)) on-line transaction processing benchmark. Usually a benchmark is run on several systems. The

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mca5020 smu mca Fall 2015 V sem assignment

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Fall 2015 ASSIGNMENT

PROGRAM-MCA(REVISED FALL 2012)

SEMESTER-V

SUBJECT CODE & NAME-MCA5020-ADVANCED SOFTWARE ENGINEERING

CREDIT-4

BK ID-B1636

MAX. MARKS-60

Q1. Explain the following :

a) Evolutionary prototyping model

b) Reusable software model

Answer:

a) Evolutionary prototyping model:

It is a company’s goal to stay ahead of its competitors. As such, there has to be some processes that will provide customized service to

Qus: 2 List any ten major principles of agile software.

Answer.

 Principles of agile software:

The major principles of agile software are:

·         Satisfying the customers with early and continuous delivery of valuable software is agile software’s major priority.

·         Welcoming varying requirements, even during the later phases of development. Agile processes also support change for the customer’s

Qus: 3. List the four developer practices of XP. Explain briefly about Adopt test-driven development

Answer:

Developer practices of XP:

XP values and the significance of time and resource for an XP practitioner. As a development model, the XP empowers the developers and stakeholders, associated with the project, to successfully carry out the project and develop efficient software. However, just like any other programming model, even in the XP, you must follow certain practices to

Qus:4. Briefly explain about tracker and coach in XP.

Answer.

Tracker and coach in XP:

Tracker:

A tracker is a person who

Qus:5. Which are the prerequisites for adopting XP? Explain.

Answer.

XP prerequisites:

The following are the prerequisites for adopting XP:

Ø  Team agreement

Ø  A collocated team

Ø  On-site customers

Ø  The right team size

Ø  Use all XP practices

·         Team agreement: The team’s agreement to use XP is as important as management support. If team members do not

Qus:6. List and explain any five basic principles of DSDM

Answer:

Principles of DSDM:

DSDM consists of nine basic principles. These principles form the cornerstones of development using DSDM and direct how

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mca5010 smu mca Fall 2015 V sem assignment

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PROGRAM- Mca (REVISED FALL 2012)

SEMESTER-V

SUBJECT CODE & NAME-mca5010-WEB TECHNOLOGIES

CREDIT-4

BK ID-B1547

MAX. MARKS-60

1. Describe the following protocols:

a) IP

b) HTTP

c) FTP

d) SMTP

Answer.

a) IP

IP is the protocol that controls how data moves around on the network. After TCP divides the message into segment, IP labels

Q2. a) What are the features of XML? Explain.

b) Describe XML declaration

Answer:

XML is popular for many features and few of them are listed here:

1.      Easy Data Exchange: In XML, data and markup are stored as text that we can configure. If we like, we can use XML

3. List and explain the Components of XML processor. 4*2.5

Answer.

Components of XML processor

a) Parser

Every XML processor has a parser. An XML parser converts an XML document into an XML DOM object - which can then be

Q4. Explain how to fetch data from XML to HTML. Give an example.

Answer.

Procedure of fetching data from XML to HTML

The process of fetching data from an XML files to be filled in an HTML table, using DSO (Data Source Object) and JavaScript. DSO is an object that operates like a database on the client side. It will accept information that is organized in a certain way and will manipulate it with its own database engine.

DSO allows data binding to HTML table elements. When a table element is bound there is no need to write out the code for individual

5. Describe five different categories of PHP Operators. 5*2

Answer.

Categories of PHP Operators

In all programming languages, operators are used to manipulate or perform operations on variables and values. There are many operators used in PHP, so we have separated them into the following categories to make it easier to learn them all.

·         Assignment

·          

6. Write short note on ASP. 10

Answer.

ASP

The page on the server called by the JavaScript is an ASP file called AJAX server page. The server file could easily be rewritten in PHP, or some other server languages. Look at the example in PHP. The source code in "getcustomer.asp" runs a

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mca2040 smu mca Fall 2015 IInd sem assignment

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Fall 2015

mca2040

1 Explain the process of communication with a diagram.

Answer: Process of Communication

Normally, the communication is meant for Interpersonal purpose. This is also known as interpersonal communication, where the information or message is transferred from one person to the other(s). The

2 What is the difference between listening and hearing? Name the different types of listening.

Answer: Listening is a highly complex, interactive process, “by which spoken language is converted to meaning in the mind” (Lundsteen, 1979). As this definition suggests, listening is more than just hearing, although children and adults often use the two terms, hearing and listening, synonymously.

3 Describe five types of Reading.

Answer: Types of Reading

Skimming

Let’s say that you need to buy a reference book for English grammar as suggested by your professor. You go to a book store and see a rack full of books, with the same title, but different authors. You don’t have time

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