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PROGRAM-MCASEMESTER-V
SUBJECT
CODE & NAME-MCA5010-WEB TECHNOLOGIES
CREDIT-4
MAX.
MARKS-60
Qus:1 Differentiate
between TCP and UDP
Answer:
Differentiate between
TCP and UDP:
TCP (Transmission Control
Protocol):
The
TCP corresponds to the transport layer of OSI reference model, The TCP is known
as a connection-oriented protocol, which means that connection is established
and maintained until such time as the message or
Qus: 2 describe the
features of XML. What are the important rules to keep in mind about the XML
declaration?
Answer:
The features of XML:
XML
is popular for many features and few of them are listed here:
1.
Easy
Data Exchange: In XML, data and mark-up are
stored as text that we can configure. If we like, we can use XML editors to
2.
Qus: 3. List and explain the
Components of XML processor.
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 manipulated with a JavaScript. The parser's job
is to translate XML mark-up and data into a stream of bite-sized nuggets,
called tokens, to be used for processing. A token may be an element start tag,
a
Qus:4. Describe the procedure of
fetching 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 infor
Qus:5. Describe five different
categories of PHP Operators.
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
Qus:6. Describe about ASP.
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 "
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Winter
2017 ASSIGNMENT
PROGRAM-MCA(REVISED
FALL 2012)
SEMESTER-V
SUBJECT
CODE & NAME-MCA5020-ADVANCED SOFTWARE ENGINEERING
Qus:1 What do you mean
by product life cycle? Explain the seven stages of product life cycle
Answer:
Product life cycle:
A
series of steps is required to manufacture a product..The product developed
should satisfy the customer. The series of steps involved in developing the
product is called the product life cycle.
The stages of product
life cycle:
The
seven
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
.
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
Qus:4. Briefly explain about
tracker and coach in XP.
Answer.
Tracker and coach in XP:
Tracker:
A
tracker is a person who keeps track of the schedule. A tracker can be a manager
or a trusted developer. XP keeps track of certain metrics that include team
velocity. This is the ratio of ideal time estimated for accomplishing a task to
the actual time spent implementing them. The tracker also includes other data
such as change in velocity,
Qus:5. Explain XP prerequisites.
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
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 development progresses. Ignoring any one
of them will break with the frameworks philosophy and
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MCA5033
Winter
2017
1
Explain ACID properties in transaction management
Answer:
Transactions
In the context of a database, a transaction can be defined as a group of tasks (database operations). It is a unit of a program execution that accesses and possibly modifies various data objects (database tuples, relations). A transaction is
In the context of a database, a transaction can be defined as a group of tasks (database operations). It is a unit of a program execution that accesses and possibly modifies various data objects (database tuples, relations). A transaction is
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
3 Explain the SELECT and
PROJECT operations.
Answer: Relational Algebra Operators are
mathematical functions used to retrieve queries by describing a sequence
operations on tables or even databases(schema) involved.[1] With relational
algebra
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 event (insert, update or delete) that is associated with a table
occurs. This is a special type of
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
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 performance and
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PROGRAM-MCA(Revised
Fall 2012)
SEMESTER-V
SUBJECT
CODE & NAME-MCA5043– Data Warehousing and Data Mining
1 Explain the Top-Down and
Bottom-up Data Warehouse development Methodologies.
Answer: Despite the fact that Data
Warehouses can be designed in a number of different ways, they all share a
number of important characteristics. Most Data Warehouses are Subject Oriented.
This means that the information that is in the Data Warehouse is stored in a
way that allows it to be connected to objects or event, which occur in reality.
Another
2. Explain the Functionalities
and advantages of Data Warehouses. 5+5
Answer.
Functionalities and advantages of
Data Warehouses
Functionalities
A data warehouse functions as a repository for all the data
held by an organisation. The main functions are to reduce cost of data storage,
facilitate data mining, and facilitate ability to back up data at an
organisational level. A data warehouse is
the main
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
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 same) analytical results.
Why data
reduction?
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
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 at the
bottom level database the semi structured data is stored in web repositories as
hyper text .The generalizations are
extracted at the higher level so as to
organize in structured collections as relational and Object Oriented
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