1. Describe the relations that would be produced by the following relational algebra operations a) ПhotelNo(σprice>100(Room)) It will produce a single attribute (hotelNo) giving the number of hotels room prices greater 100. b) σHotel.hotelNo=Room.hotelNo(Hotel X Room) A join produce of hotel and room containing all the attributes of both. c) ПhotelName(Hotel Hotel.hotelNo=Room.hotelNo (σprice>100(Room))) It is a join of hotel and room with the price greater than 100. d) Guest(σdateTo>’1-June-12’(Booking)
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The Solution In Synaptics Solutions’ recommendation‚ Filton College chose to purchase some sort of Meru Networks wi-fi system. Synaptic Solutions began the changeover by disconnecting the legacy equipment thought to be causing the networking problems. Shortly thereafter‚ they began deploying the Meru Networks networking kit. Within the primary period‚ twenty-one Meru AP201 Entry Points (APs) have been set up through the entire WISE campus and a Meru MC3050 controller had been combined with
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1 Communicating in Asynchronous World with Netty In this chapter‚ we will cover asynchronous socket programming and common recipes using Netty for building network-based application. The user story is‚ you get requirements to develop a system‚ that client and server can communicate asynchronously using TCP/IP . So we will divide the problem to 6 common recipes: Building an asynchronous TCP/IP server and client Sending hello message to server when connection is ready Receiving message asynchronously
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DESIGN AND IMPLEMENTATION OF AN ONLINE STUDENT ADMISSION SYSTEM (A CASE STUDY OF FEDERAL COLLEGE OF EDUCATION‚ EHA-AMUFU‚ ENUGU STATE) TABLE OF CONTENTS Title page Certification Dedication Acknowledgement Abstract Table of contents CHAPTER ONE 1.0 INTRODUCTION of “design and implementation of an online students admission system” 1.1 Background of the study 1.2 Statement of the problem 1.3 Purpose of the study 1.4 Significance of the study 1.5 Scope of study CHAPTER TWO 2.1 LITERATURE REVIEW
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It cant be easily guessed as in passwords Don’t need to remember The user does not require to carry device (mobile/ security token) Concerns Its expensive to install The scanner is not always accurate System may produce false negative- not allowing to login Unlike passwords the biometric data cant be retracted – means- if someone knows your password‚ you can change them. If someone hacks your finger print‚ you cant change your finger. User accounts and access level
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Nicholas Pratt Professor Campbell The Unplugged Challenge Back to the Stone Age. That is what went through my mind as I prepared to begin the Unplugged Challenge and disconnect from the internet for five days. Several questions crossed my mind before I began. How will I stay connected with people? What if I miss an email naming me the Publishers Clearing House ‘Grand Prize Winner?’ Could I live for nearly a week without the search capability of Google or the hilarious videos of YouTube? It seemed
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Beej ’s Guide to Network Programming Using Internet Sockets Version 1.5.4 (17-May-1998) [http://www.ecst.csuchico.edu/~beej/guide/net] Intro Hey! Socket programming got you down? Is this stuff just a little too difficult to figure out from the man pages? You want to do cool Internet programming‚ but you don ’t have time to wade through a gob of structs trying to figure out if you have to call bind() before you connect()‚ etc.‚ etc. Well‚ guess what! I ’ve already done this nasty business
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Activity Analysis Name of activity: Sending an e-mail to a friend on a home-computer Number of individuals involved: 1 Supplies and equipment: Computer‚ internet Procedure: 1. Turn on the computer 5 min 2. Use mouse to click on the internet symbol 30 sec 3. Type yahoo.com into the search box at the top of the webpage 30 sec 4. Click on the link‚ “Mail” 30 sec 5. Type username and password to sign in 1 min 6. Click on “New” 30 sec 7. Type the
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Lab 2-1 1. NT2670-PE99A 2. Change system properties‚ configure network connections‚ computer management 3. None 4. Group Policy Management; Remote Server Admin Tools: Role Admin Tools: AD DS Controller Tools‚ Server for NIS Tools 5. Successful 6. Added an additional Role Services subsection 7. Added the Volumes to Index Role 8. Cannot have both the WSS and WS 2003 File Services installed on the same server. Checked as a stand-alone service‚ it automatically adds the File Replication Service and
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Modern life and business has become easier thanks to the contribution of the Internet technology however it was not created overnight. It took a long time until networks could be connected together. From here the Internet has had a tremendous impact all over the world. The Internet not only allows for ease communication but also ensures easy availability of information‚ images and products among other things. Every day the Internet continues to provide a new facility‚ something new that is immensely
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