BT9003, Data Storage management

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ASSIGNMENT

PROGRAM BSc IT
SEMESTER FOURTH
SUBJECT CODE & NAME BT9003, Data Storage management
CREDIT 4
BK ID B1190
MAX.MARKS 60

 

 

Q.1 State the reasons for data loss in some business corporations.

 

Answer: Risk is a measure of potential economic loss, lack of return on an investment or asset, or material injury. Another way to state this is that risk is a measure of exposure to harm.

 

The Effect of Lost Data on Business Operations

Companies recognize that data loss represents a business risk. Even if a monetary value is not assigned to the data, the negative effects on operations can be significant. In many cases, corporate operations can be so adversely affected that companies feel the ne

 

 

 

Q.2 How ILM supports implementation of regulatory concerns? Explain with an example.

 

Answer: Informatica ILM Nearline is highly scalable, high-performance software that empowers IT organizations to cost-effectively manage the explosion of data growth in their SAP BW systems. The software enables IT teams to easily and safely move infrequently-accessed data from SAP BW into an integrated nearline data store. Nearlined data can

 

 

 

 

Q.3 Describe the two product classes in storage networking.

 

Answer: Storage networking is the practice of linking together storage devices and connecting them to other IT networks. Storage networks provide a centralized repository for digital data that can be accessed by many users, and they use high-speed connections to provide fast performance. It’s most common to find storage networks in enterprise settings, although some vendors do sell networked storage products for consumers and small businesses.

 

 

 

Q.4 Briefly explain redundant I/O path elements.

 

Answer: Multipath I/O (MPIO) is a Microsoft framework designed to mitigate the effects of a host bus adapter (HBA) failure by providing an alternate data path between storage devices and a Windows operating system. MPIO enables up to 32 alternate paths to add redundancy and load balancing for Windows storage environments.

Pathing is a networking approach used to address the specific needs of storage networks by changing the way that communication paths are managed and

 

 

 

  1. 5 Describe file system hierarchy and parsing the file system.

 

Answer: The File system Hierarchy Standard (FHS) defined the directory structure and directory contents in Unixand Unix-like operating systems. It is maintained by the Linux Foundation. The latest version is 3.0, released on 3 June 2015.  Currently it is only used by Linux distributions. A File System defines a logical way to read and write information. In this way, it can be considered a specification. Most PC file systems are based off of the desktop concept of files and folders.

 

There are alot of different kinds of file systems. Some are widely use (Like FAT12, FAT16, FAT32, NTFS, ext (Linux), HFS (Used in older MACs); other file

 

 

 

Q.6 Explain RAID 0, RAID1 and RAID 0+1.

 

Answer: On most situations you will be using one of the following four levels of RAIDs.

  • RAID 0
  • RAID 1
  • RAID 10 (also known as RAID 1+0)

 

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BT0083,Server Side Programming-Theory

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ASSIGNMENT

PROGRAM BSc IT
SEMESTER FOURTH
SUBJECT CODE & NAME BT0083,Server Side Programming-Theory
CREDIT 4
BK ID B1088
MAX.MARKS 60

 

 

  1. 1. Describe java servlets and compare it with CGI.

 

Answer: A Java servlet is a Java programming language program that extends the capabilities of a server. Although servlets can respond to any types of requests, they most commonly implement applications hosted on Web servers. Such Web servlets are the Java counterpart to other dynamic Web content technologies such as PHP and ASP.NET.

 

Difference between SERVLET and CGI

 

 

 

Q.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:-

 

Request Parameters:- Each access to a servlet can have any number of request parameters associated with it. These parameters are typically name/value pairs that tell the servlet any extra information it needs to handle the request. Please don’t confuse these request parameters with init parameters, which are associated with the servlet itself.

 

 

 

 

 

Q.3 Describe the following exception handling methods in a servlet with the help of examples

  1. Using the web.xml file

Answer: When a servlet throws an exception, the web container searches the configurations in web.xml that use the exception-type element for a match with the thrown exception type.

 

We would have to use the error-page element in web.

 

 

 

Q.4 Explain the two JSP architectures.

 

Answer: – The JSP specification presents two approaches for building web applications using JSP pages: JSP Model 1 and Model 2 architectures. These two models differ in the location where the processing takes place. In Model 1 architecture, the JSP page is responsible for processing requests and sending back replies to clients.

The Model 2 architecture, integrates the use of both servlets and JSP pages. In this mode, JSP pages are used for the presentation layer, and servlets for

 

 

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

 

Answer: The life cycle of a JavaServer Faces page is somewhat similar to that of a JSP page: The client makes an HTTP request for the page, and the server responds with the page translated to HTML. However, the JavaServer Faces life cycle differs from the JSP life cycle in that it is split up into multiple phases in order to support the sophisticated UI component model. This model requires that component data be converted and validated, component events be

 

 

 

 

6 Describe the usage of EL (Expression Language) operators with suitable examples.

 

Answer: JSP Expression Language (EL) makes it possible to easily access application data stored in JavaBeans components. JSP EL allows you to create expressions both (a) arithmetic and (b) logical. Within a JSP EL expression, you can use integers, floating point numbers, strings, the built-in constants true and false for boolean values, and null.

 

 

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BT0082, Visual Basic

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ASSIGNMENT

PROGRAM BSc IT
SEMESTER FOURTH
SUBJECT CODE & NAME BT0082, Visual Basic
CREDIT 4
BK ID B1093
MAX.MARKS 60

 

Q.1  Explain the event driven applications in vb.net.

Explain common control events and common form events in vb.net.

Answer: – Event driven applications in vb.net:- Event-driven programming is a programming paradigm in which the flow of program execution is determined by events – for example a user action such as a mouse click, key press, or a message from the operating system or another program. An event-driven application is designed to detect events as they occur, and then deal with them using an appropriate event-handling procedure. The idea is an extension of interrupt-driven programming of the kind found in early command-line environments such as DOS, and in embedded systems (where the application is implemented as firmware).

 

 

Q.2  Describe the concept of Exit try statement in Vb.net with an example.

Answer: – Exit try statement: – Provides a way to handle some or all possible errors that may occur in a given block of code, while still running code.

 

 

 

 

  1. Define SQL. Explain the select statement of SQL with examples.

Answer: SQL (Structured Query Language) is a standard interactive and programming language for getting information from and updating a database. Although SQL is both an ANSI and an ISO standard, many database products support SQL with proprietary extensions to the standard language. Queries take the form of a command language that lets you select, insert, update, find out the location of data, and so forth. There is also a programming interface.

 

  1. Describe the concept of record navigation in VB.NET.

Answer:

Q.5 Describe the concept of jagged arrays in visual basic with an example.

Answer: – jagged arrays: – A jagged array is an array whose elements are arrays. The elements of a jagged array can be of different dimensions and sizes. A jagged array is sometimes called an “array of arrays.” The following examples show how to declare, initialize, and

 

 

  1. Describe the features of List View Control. Also describe how to set its design time properties.

Answer: The ListView control displays data in a format that you define by using templates and styles. It is useful for data in any repeating structure, similar to the DataList and Repeater controls. However, unlike those controls, with the ListView control you can enable users to edit, insert, and delete data, and to sort and page data, all without code.

You can bind the ListView control to data in these ways:

 

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BT0081, SOFTWARE ENGINEERING

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ASSIGNMENT

PROGRAM BSc IT
SEMESTER FOURTH
SUBJECT CODE & NAME BT0081, SOFTWARE ENGINEERING
CREDIT 4
BK ID B1090
MAX.MARKS 60

 

 

Q.1 Explain Information content and determinacy.

 

Answer: The kind of ‘information’ produced by a mindless computer program or a natural, physical mindless process is cheap, worthless, meaningless information. Just let it run forever and it produces an endless stream of ‘information’! That is not what humans call information. There is the real paradox.

Another way of stating the paradox is: a long random string of letters has a higher Information Content then a book of the same length. This is so because a random string is hardly compressible at all, while the content of a book can easily be compressed (as everyone knows who uses PC compression programs as pkzip, winzip, etc). In fact a random string has the

 

 

 

Q.2 Describe spiral model and its various task regions.

 

Answer: The spiral model comprises activities organized in a spiral, and has many cycles. This model combines the features of the prototyping model and waterfall model and is advantageous for large, complex, and expensive projects. The objective of the spiral model is to emphasize management to evaluate and resolve risks in the software project. Different areas of risks in the software project are project overruns, changed requirements, loss of key

 

 

 

 

Q.3 Explain the various steps involved in establishing a reliability specification and statistical testing.

 

Answer: Design for Reliability (DFR) is not a new concept, but it has begun to receive a great deal of attention in recent years. What is DFR? What are the ingredients for designing for reliability, and what is involved in implementing DFR? Should DFR be part of a Design for Six Sigma (DFSS) program, and is DFR the same as DFSS? In this article, we will try to answer these questions and, at the same time, we will propose a general DFR process that can be adopted

 

 

 

Q.4 Differentiate object-oriented and function oriented approaches.

 

Answer: In object oriented programming everything (or almost everything) is treated as an object that can be modified and that can perform tasks, or in OOP speak one might say objects have state and behavior. What it buys you is modularity, and data hiding.

 

According to Object Oriented Programming an object that models a ball, from above the ball can be modified for example you may be able to change the color of the ball. It can also perform tasks for example the ball can roll, or be thrown. As an

 

 

Q.5 Identify the different documents which may be produced to aid the maintenance process.

 

Answer: ABSTRACT: Software engineering has been striving for years to improve the practice of software development and maintenance. Documentation has long been prominent on the list of recommended practices to improve development and help maintenance. Recently however, agile methods started to shake this view, arguing that the goal of the game is to produce software and that documentation is only useful as long as it helps to reach this goal.

 

SOFTWARE MAINTENANCE

Software maintenance is traditionally defined as any

 

 

 

Q.6 Discuss the various test design methods used in real time software testing.

 

Answer: Real-time testing involves testing a system when it is running at its normal operating speed to ensure that operations are completed within their deadlines. When is comes to testing real time software there is not one single method for testing it because of the nature of the software and the time constraints placed on it. As a result of this the software is quite difficult to test, meaning that we have to be exhaustive with our testing, which is why there isn’t one single method in which to test it. Therefore, in order to test such software several methods need to be employed in order to do this, these could include black and white box testing, sequence testing

 

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BT0080,Fundamental of Algorithms

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ASSIGNMENT

PROGRAM BSc IT
SEMESTER FOURTH
SUBJECT CODE & NAME BT0080,Fundamental of Algorithms
CREDIT 4
BK ID B1092
MAX. MARKS 60

 

  1. Describe insertion sort algorithm with the help of an example.

Answer: It is a simple Sorting algorithm which sorts the array by shifting elements one by one. Following are some of the important characteristics of Insertion Sort.

  1. It has one of the simplest implementation
  2. It is efficient for smaller data sets, but very inefficient for larger lists.
  3. Insertion Sort is adaptive, that means it

Q.2 State the concept of divide and conquer strategy with the help of an example.

Answer: – Divide and conquer (D&C) is an algorithm design paradigm based on multi-branched recursion. A divide and conquer algorithm works by recursively breaking down a problem into two or more sub-problems of the same (or related) type, until these become simple enough to be solved directly. The solutions to the sub-problems are

 

 

 

 

 

Q.3 Explain knapsack problem. Write algorithm for it.

Answer: – The knapsack problem or rucksack problem is a problem in combinatorial optimization: Given a set of items, each with a mass and a value, determine the number of each item to include in a collection so that the total weight is less than or equal to a given limit and the total value is as large as possible. It derives its name from the problem faced by someone who is constrained by a fixed-size knapsack and must fill it with the most valuable items.

The problem often arises in resource allocation where the

 

 

Q.4 Explain trees and sub graphs with examples.

Answer:-Tree: – A tree is a connected graph without any cycles, or a tree is a connected acyclic graph. The edges of a tree are called branches. It follows immediately from the definition that a tree has to be a simple graph (because self-loops and parallel edges both form cycles). Figure 4.1(a) displays all treewith fewer than six vertices.

An AVL tree is another balanced binary search tree.

 

 

Q5. Define spanning trees.  Explain Kruskal’s algorithm to find out minimal cost spanning trees.

Answer: In the mathematical field of graph theory, a spanning tree T of an undirected graph G is a subgraph that includes all of the vertices of G that is a tree. In general, a graph may have several spanning trees, but a graph that is not connected will not contain a spanning tree (but see Spanning forests below). If all of the edges of G are also edges of a

 

 

Q.6 Define and explain Hamiltonian circuit and path.

Answer: – A graph that contains a Hamiltonian cycle is called a Hamiltonian graph. Similar notions may be defined for directed graphs, where each edge (arc) of a path or cycle can only be traced in a single direction (i.e., the vertices are connected with arrows and the edges traced “tail-to-head”).

Hamiltonian path: – a Hamiltonian path (or

 

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MB0040 – STATISTICS FOR MANAGEMENT

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ASSIGNMENT

 

 

DRIVE SPRING 2015
PROGRAM MBA
SEMESTER 1
SUBJECT CODE & NAME MB0040 STATISTICS FOR MANAGEMENT
BK ID B1731
CREDIT & MARKS 4 Credits, 60 marks
Name XXXXX

 

 

 

 

Q1 Distinguish between Classification and Tabulation. Explain the structure and components of a Table with an example.

  • Meaning of Classification and Tabulation
  • Differences between Classification and Tabulation
  • Structure and Components of a Table with an example

 

Answer.

Meaning of Classification and Tabulation

Classification

According to Secrist, “Classification is the process of arranging data into sequences and groups according to their common characteristics or separating them into different but related parts”. According to Stockton and Clark, “The process of grouping large number of individual facts and observations, on the basis of similarity

 

 

Q2. (a) Explain Arithmetic mean. 3

 

(b) The mean wage is Rs. 75 per day, SD wage is Rs. 5 per day for a group of 1000 workers and the same is Rs. 60 and Rs. 4.5 for the other group of 1500 workers. Find the mean and standard deviation for the entire group. 7

 

Answer:

 

(a) Arithmetic mean:  Arithmetic mean is defined as the sum of all values divided by number of values and is represented by X . Arithmetic mean is also called ‘average’. It is most commonly used measures of central tendency. Arithmetic Mean of a series is the value obtained by adding all the observations of a series and

 

 

Q3. Mr. Arun and Mr. Bhandari play a game. If Mr. Arun picks up an even number from 1 to 6, Mr. Bhandari will pay him double the amount equal to picked up number. If Mr. Arun picks up an odd number then he has to pay amount equal to double the picked up number. What is Mr. Arun’s expectation? 10

 

Solution: Let Xi be the random variable and P(Xi) be its probability. The probabilities are indicated in table.

 

Required Values for Calculating Mean and Variance for the Data

 

 

               NO.                      (Xi)                   P(Xi)                     Xi P(Xi)
               1                      -2                 1/6                  – 2/6
               2                     4                 1/6                    4/6

 

 

 

 

Q4. The probability that an employee will get an occupational disease is 20%. In a firm having five employees, what is the probability that:

  1. i) None of the employees get the disease 4
  2. ii) Exactly two will get the disease 3

iii) More than four will contract the disease 3

 

Answer: Solution

 

Given that:

p 20/100

0.2

 

 

Q5. Microsoft estimated that out of 10,000 potential software buyers, 35% wait to purchase the new OS Windows Vista, until an upgrade has been released. After an advertising campaign to reassure the public was released, Microsoft surveyed 3000 buyers and found 950 who are still skeptical. At 5% level of significance, can the company conclude that the population of skeptical people had decreased? 10

 

Answer: Solution:

 

The procedure is explained in the following steps:

 

  1. Null hypothesis Ho: p = .35

 

 

Q6. Explain Chi-square test and the conditions for applying chi-square test. (Meaning, Conditions) 5, 5

 

Answer: Chi-Square test: The Chi-square test is one of the most commonly used non-parametric tests in statistical work. The Greek Letter 2 is used to denote this test. 2 describe the magnitude of discrepancy between the observed and the expected frequencies. The value of 2 is calculated as:

 

 

Where, O1, O2, O3….On are the observed frequencies and E1, E2, E3…En are the corresponding expected or theoretical frequencies.

 

 

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Project Management

 

 

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NAME ………………………………..

BATCH……………………………….

ENTROLLMENT NO. ………….

 

 

 

Project Management

 

Each assignment carries 25 marks

 

Answer any 2 questions from the following :

 

 

 

 

Q1 ) ( A ) How can risks be prioritized in a project management ? Give any suitable example.

 

Answer:Risk impact assessment is the process of assessing the probabilities and consequences of risk events if they are realized. The results of this assessment are then used to prioritize risks to establish a most-to-least-critical importance ranking. Ranking risks in terms of their criticality or importance provides insights to the project’s management on where resources may be needed to manage or mitigate the realization of high probability/high consequence

 

 

 

 

Q1 ) ( B ) Critically examine stages of project feasibility study.

 

Answer:Feasibility study: -an assessment of proposed project. assessment (evaluation and analysis) Feasibility studies aim to objectively and rationally uncover the strengths and weaknesses of an existing business or proposed venture, opportunities and threats present in the environment, the resources required to carry through, and ultimately the prospects for success. In its simplest terms, the

 

 

 

 

Q2 ) “ A good team-work speeds up project implementation. Developing self directed project teams is the key to improving effectiveness in project management.” Comment with some examples.

 

Answer: The complexity and dynamic nature of the business environment and developments in technologies and markets pose pressure and challenges for organisations. This report seeks to explore the manner in which self-directed teams can be successfully implemented in Kodak. It also includes a review of current literature on rationale behind the increased usage of self-

 

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