...NT1210: INTRO TO NETWORKING WEEK 5 ESSAY Microsoft and VMware Comparison Tyler Reed In today’s world of cloud storage, cloud computing, and virtualization; I think it is important to understand what virtualization is before comparing the different options. Virtualization first started in the 1960’s as a way to logically divide the system resources provided by mainframe computers between different applications. It is very important to remember that computer strength and hardware performance wasn’t as strong or efficient when this method was introduced. While today’s smartphones are inherently stronger than the best computer during that time, the base problem still exists. Mainly because of the amount of resources needed to run multiple applications, allow server access to potentially thousands of computers and devices accessing the same computer or hardware. Since the concept’s inception the meaning has broadened into hardware virtualization, mobile virtualization, and desktop virtualization. Virtualization has helped organizations reduce cost and increase efficiency in the data center. New virtualization products allow for different benefits and challenges and must be carefully considered for businesses to realize the long term benefits, such as increasing user productivity and decreasing IT costs. Microsoft has the largest range of desktop virtualization and management products that can be integrated into a flexible solution for many different scenarios. Microsoft...
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...List Problems By Nick Parlante Copyright ©1998-2002, Nick Parlante Abstract This document reviews basic linked list code techniques and then works through 18 linked list problems covering a wide range of difficulty. Most obviously, these problems are a way to learn about linked lists. More importantly, these problems are a way to develop your ability with complex pointer algorithms. Even though modern languages and tools have made linked lists pretty unimportant for day-to-day programming, the skills for complex pointer algorithms are very important, and linked lists are an excellent way to develop those skills. The problems use the C language syntax, so they require a basic understanding of C and its pointer syntax. The emphasis is on the important concepts of pointer manipulation and linked list algorithms rather than the features of the C language. For some of the problems we present multiple solutions, such as iteration vs. recursion, dummy node vs. local reference. The specific problems are, in rough order of difficulty: Count, GetNth, DeleteList, Pop, InsertNth, SortedInsert, InsertSort, Append, FrontBackSplit, RemoveDuplicates, MoveNode, AlternatingSplit, ShuffleMerge, SortedMerge, SortedIntersect, Reverse, and RecursiveReverse. Contents Section 1 — Review of basic linked list code techniques Section 2 — 18 list problems in increasing order of difficulty Section 3 — Solutions to all the problems 3 10 20 This is document #105, Linked List Problems, in the Stanford...
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...Priya Nathan Copyright © Oracle Corporation, 1999, 2000, 2001. All rights reserved. This documentation contains proprietary information of Oracle Corporation. It is provided under a license agreement containing restrictions on use and disclosure and is also protected by copyright law. Reverse engineering of the software is prohibited. If this documentation is delivered to a U.S. Government Agency of the Department of Defense, then it is delivered with Restricted Rights and the following legend is applicable: Restricted Rights Legend Use, duplication or disclosure by the Government is subject to restrictions for commercial computer software and shall be deemed to be Restricted Rights software under Federal law, as set forth in subparagraph (c)(1)(ii) of DFARS 252.227-7013, Rights in Technical Data and Computer Software (October 1988). This material or any portion of it may not be copied in any form or by any means without the express prior written permission of Oracle Corporation. Any other copying is a violation of copyright law and may result in civil and/or criminal penalties. If this documentation is delivered to a U.S. Government Agency not within the Department of Defense, then it is delivered with “Restricted Rights,” as defined in FAR 52.227-14, Rights in Data-General, including Alternate III (June 1987). The information in this document is subject to change without notice. If you find any problems in the documentation, please report them in writing to Education Products...
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...Face Interviews Confidently! Technical Aptitude Questions Table of Contents Data Structures Aptitude ............................................................................. 3 C Aptitude .................................................................................................. 12 C++ Aptitude and OOPS ............................................................................ 75 Quantitative Aptitude............................................................................... 104 UNIX Concepts ......................................................................................... 121 RDBMS Concepts ..................................................................................... 135 SQL .......................................................................................................... 153 Computer Networks ................................................................................. 161 Operating Systems .................................................................................. 169 2 Copyright©: Vyom Network (http://www.vyomworld.com) - All Rights Reserved Technical Aptitude Questions Data Structures Aptitude Data Structures Aptitude 1. What is data structure? A data structure is a way of organizing data that considers not only the items stored, but also their relationship to each other. Advance knowledge about the relationship between data items allows designing of efficient algorithms for the manipulation of data...
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...Object oriented programming refers to a method of programming in which individual objects, usually called "methods" and "functions", are created and used in junction with each other to perform a function. These objects are organized within the program through use of things called structures or classes. A class is something we use to create a blueprint of sorts for a assortment of variables and components. Similarly, a structure serves the same purpose. The only difference between a structure and a class is that a structure's members are public by default and a classes members are private by default. Another form of "blueprint" used by programmers is the data union. While a union is very primitive in comparison to a structure or class, it is a good tool to use to conserve memory in larger applications. A union uses the same memory block for multiple variables at different points. While two variables in a union cannot be accessed at the same time, a union is a good way to re-use blocks of memory that would normally be left void after a variable is finished with. Now that I have covered the basic points of classes, structures and unions, I will go into more detail of just how powerful a class or structure can be. In basic reference, a class is simply a blueprint to something we create instances of later in the program. This is a very vague statement however, because in object-oriented programming the class is the backbone of the program. It is what makes the...
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...To: Rosemary Worth From: Re: misplaced trust on Kate Hoffman causing money loss issue Date: September 17, 2012 This memo is in response to your questions concerning money loss issue raised by Kate Hoffman and any related operating problems. After an in depth study of your company’s daily operation procedure and a situation that you are unable to step in a managerial role because of family responsibilities, I suggest you hire a new manager to take care of daily operation management, focus on 3-4 popular classes, shorten opening hours, and base commissions on performance. My suggestion is based on obtaining better management controls in the following three aspects. People Controls You trust Kate Hoffman so much that you let her take multiple tasks such as marketing, facility up-keeping, scheduling of appointments and record keeping. Kate was paid a salary plus a commission based on gross revenues just as other instructors. Kate might have thought that she did more work than other instructors and deserved more commission. When her expectation was not met, she lacked the motivation to handle multiple tasks and turned to an unethical way – stealing money from unrecorded revenue. If a new manager is hired, Kate can be released from administrative work and concentrate on her instructor job. Thus, further money loss can be avoided, and you can still keep the friendship between Kate and you as before. Furthermore, the newly hired manager can take place of the part time clerical...
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...Lab # 4 OVERLOADING Coding : using System; using System.Collections.Generic; using System.Linq; using System.Text; namespace ConsoleApplication1 {//*********************************multiplication************************************ class A { public int multiply(int a,int b) { return a * b; } public double multiply(int a, double b) { return a * b; } public double multiply(double a, double b) { //1 argument type different OVERLOADING can be performed return a * b; } }//*********************************fraction************************************ #region fraction class fraction { int numerator, denominator; //field public void display() { Console.WriteLine(numerator + "/" + denominator); } public fraction() { numerator = 0; denominator = 1; } public fraction( int n, int d) { numerator = n; denominator = d; } public fraction(int n) { numerator = n; denominator = 1; } } #endregion //*********************************length************************************ #region length class length { int feet, inches; public void display() { ...
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...structured programming and data structuring. 2) SQL (Structured Query Language) designed by, Donald D. Chamberlin, and Raymond F. Boyce. The motivation behind this language was designed for managing data held in a relational database management system. ( RDBMS) 3) C, Designed by Dennis Ritchie. the motivation behind this language is structured programming and allows lexical variable scope and recursion. 4) Applesoft BASIC, developed by Marc McDonald, and Ric Weiland. The motivation with this language was it was designed to be backwards-compatible with integer BASIC and used the core of Microsoft’s 6502 BASIC implementation. 5) GRASS, Developed by Thomas A. DeFanti. GRASS is similar to BASIC in sytax, but added numerous instructions for specifying 2D object animation, including scaling, translation, rotation and color changes over time. 1980’s 1) BASICA, Designed by Thomas E. Kurtz. Designed to offer support for the graphics and sound hardware of the IBM PC line. 2) Turbo Pascal, developed by Borland, under Philippe Kahn’s leadership. This is a software development system that includes a compiler and an integrated development environment for the Pascal programming language. 3) C++, designed by Bjarne Stroustrup. This is a general purpose programming language that is free-form and compiled. It is regarded as an intermediate-level language, as it comprises both high-level and low-level language features. It provides imperative, object-oriented and...
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...Reusability of Code To be able to compare and contrast procedural programming modules and object-oriented programming, or OOP for short, we need to understand the two different styles. Procedural programming was the most commonly used programming language early on with a top-down model. This programming module places its attention on procedures or actions, which take place within the program. A few examples of procedural programming are FORTRAN and BASIC. OOP although has become the preferred method of use. OOP focuses on objects, which are self-contained unit containing date and data operations. When it comes to the reusability of codes OOP makes this task much easier. As procedural programming is a line-by-line programming style as if to be writing out simple instructions. OOP however allows the programmer to utilize inheritance. Inheritance gives the programmer the ability to create new classes, known as subclasses, based on an existing class, known as the superclass. This ability enables the programmer to utilize the data and methods of the original class or superclass. This whole process is where the programmer is able to utilize code that already was written saving them time and eliminating the opportunity for programming errors. Another benefit to OOP over procedural programming is security and the ability to hide code. Within OOP, the programmer is able to label certain data fields as private. Once these data fields are labeled as private, their data and methods...
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...Let Us C Fifth Edition Yashavant P. Kanetkar Dedicated to baba Who couldn’t be here to see this day... About the Author Destiny drew Yashavant Kanetkar towards computers when the IT industry was just making a beginning in India. Having completed his education from VJTI Mumbai and IIT Kanpur in Mechanical Engineering he started his training company in Nagpur. Yashavant has a passion for writing and is an author of several books in C, C++, VC++, C#, .NET, DirectX and COM programming. He is a much sought after speaker on various technology subjects and is a regular columnist for Express Computers and Developer 2.0. His current affiliations include being a Director of KICIT, a training company and DCube Software Technologies, a software development company. In recognition to his contribution Microsoft awarded him the prestigious “Best .NET Technical Contributor” award recently. He can be reached at kanetkar@kicit.com. Preface to the Fifth Edition It is mid 2004. World has left behind the DOTCOM bust, 9/11 tragedy, the economic downturn, etc. and moved on. Countless Indians have relentlessly worked for close to two decades to successfully establish “India” as a software brand. At times I take secret pleasure in seeing that a book that I have been part of, has contributed in its own little way in shaping so many budding careers that have made the “India” brand acceptable. Computing and the way people use C for doing it keeps changing as years go by. So overwhelming...
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...Carnegie Mellon Course Overview 15-213 /18-213: Introduction to Computer Systems 1st Lecture, Jan. 14, 2014 Instructors: Seth Copen Goldstein, Anthony Rowe, Greg Kesden The course that gives CMU its “Zip”! 1 Carnegie Mellon Overview Course theme Five realities How the course fits into the CS/ECE curriculum Logistics 2 Carnegie Mellon Course Theme: Abstraction Is Good But Don’t Forget Reality Most CS and CE courses emphasize abstraction Abstract data types Asymptotic analysis These abstractions have limits Especially in the presence of bugs Need to understand details of underlying implementations Useful outcomes from taking 213 Become more effective programmers Able to find and eliminate bugs efficiently Able to understand and tune for program performance Prepare for later “systems” classes in CS & ECE Compilers, Operating Systems, Networks, Computer Architecture, Embedded Systems, Storage Systems, etc. 3 Carnegie Mellon Great Reality #1: Ints are not Integers, Floats are not Reals Example 1: Is x2 ≥ 0? Float’s: Yes! Int’s: 40000 * 40000 1600000000 50000 * 50000 ?? Source: xkcd.com/571 4 Carnegie Mellon Great Reality #1: Ints are not Integers, Floats are not Reals Example 1: Is x2 ≥ 0? Float’s: Yes! Int’s: 40000 * 40000 1600000000 50000 * 50000 ?? Example 2: Is (x + y) + z = x + (y + z)? Unsigned & Signed Int’s: Yes! Float’s: ...
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...ArrayList Johnnie L. Bagley III PRG/420 October 09, 2013 Dr. Orenthio K. Goodwin ArrayList The differences between the Array and an ArrayList is a common question asked by beginners, just starting to code using Java. The Array and ArrayList are both used to store elements, which can be a primitive or an object in the case of ArrayList in Java. A main difference between the ArrayList and an Array in Java would be the static nature of the Array, but the ArrayList has a dynamic nature. Once an Array is created, programmers cannot change the size of it, but an ArrayList will be able to re-size itself at any time. There is one more notable difference between ArrayList and an Array (Paul, 2012). The Array is a core part of Java programming that has a special syntax and a semantics support within Java. An ArrayList is a part of the collection framework of popular classes, such as HashMap, Hashtable, and Vector. There are six more differences between Array and ArrayList which will be listed in numeral order: 1. First and Major difference between Array and ArrayList in Java would be that Array is a fixed length data structure, while ArrayList is a variable length collection class. 2. Another difference is that an Array cannot use Generics, due to it cannot store files, unlike the ArrayList that allows users to use Generics to ensure storage. 3. Programmers can compare the Array vs. ArrayList on how to calculate length of Array or size of an ArrayList. 4....
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...PHP Tutorial - Learn PHP If you want to learn the basics of PHP, then you've come to the right place. The goal of this tutorial is to teach you the basics of PHP so that you can: • • • Customize PHP scripts that you download, so that they better fit your needs. Begin to understand the working model of PHP, so you may begin to design your own PHP projects. Give you a solid base in PHP, so as to make you more valuable in the eyes of future employers. PHP stands for PHP Hypertext Preprocessor. PHP - What is it? Taken directly from PHP's home, PHP.net, "PHP is an HTML-embedded scripting language. Much of its syntax is borrowed from C, Java and Perl with a couple of unique PHP-specific features thrown in. The goal of the language is to allow web developers to write dynamically generated pages quickly." This is generally a good definition of PHP. However, it does contain a lot of terms you may not be used to. Another way to think of PHP is a powerful, behind the scenes scripting language that your visitors won't see! When someone visits your PHP webpage, your web server processes the PHP code. It then sees which parts it needs to show to visitors(content and pictures) and hides the other stuff(file operations, math calculations, etc.) then translates your PHP into HTML. After the translation into HTML, it sends the webpage to your visitor's web browser. PHP - What's it do? It is also helpful to think of PHP in terms of what it can do for you. PHP will allow you to: ...
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...Jason Latham Comparison of C, C++, and C# IADT Seattle The C family of languages has been a cornerstone in the programming field for years. So exactly what is the C family? It includes the C, C++ and C# (pronounced sharp) languages. Now that we know what they are, what are the differences between the three? Well, that is what will be discussed here. C is a minimalistic programming language because it could be compiled in a straightforward manner by a relatively simple compiler. C offers low-level access to memory via pointers and the ability to access specific hardware addresses. C generates only a few instructions of machine languages for each of its core language elements and does not require extensive run-time support. It can be concluded that C language is suitable for many systems-programming applications that had traditionally been implemented in assembly languages (Gabb, 2012). With its inherent low-level memory access and small run-time support, using C for embedded hardware systems is ideal. Many devices such as robots, machinery, and electronic tools are programmed utilizing its ability to access specific hardware addresses. However, as C is structured oriented programming language and focuses on the procedural programming paradigm, it is relatively hard to control the large-scale program. As C language has high level and machine level mixed programming capacity, it is used in most hardware related applications. It is very suitable for writing programs in embedded...
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...Minimum Shelf Problem Description At a shop of marbles, packs of marbles are prepared. Packets are named A, B, C, D, E …….. All packets are kept in a VERTICAL SHELF in random order. Any numbers of packets with these names could be kept in that shelf as in this example: bottom of shelf ---> [AAAJKRDFDEWAAYFYYKK]-----Top of shelf. All these packets are to be loaded on cars. The cars are lined in order, so that the packet could be loaded on them. The cars are also named [A, B, C, D, E,………….]. Each Car will load the packet with the same alphabet. So, for example, car ‘A’ will load all the packets with name ‘A’. Each particular car will come at the loading point only once. The cars will come at the loading point in alphabetical order. So, car ‘B’ will come and take all the packets with name ‘B’ from the shelf, then car ‘C’ will come. No matter how deep in the shelf any packet ‘B’ is, all of the ‘B’ packets will be displaced before the ‘C’ car arrives. For that purpose, some additional shelves are provided. The packets which are after the packet B, are kept in those shelves. Any one of these shelves contains only packets, having the same name. For example, if any particular shelf is used and if a packet with name X is in it, then only the packets having names X will be kept in it. That shelf will look like [XXXXXXX]. If any shelf is used once, then it could be used again only if it is vacant. Packets from the initial shelf could be unloaded from top only. Write a program...
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