best alternative in the following: Q.1 In the relational modes‚ cardinality is termed as: (A) Number of tuples. (B) Number of attributes. (C) Number of tables. (D) Number of constraints. Ans: A Q.2 Relational calculus is a (A) Procedural language. (C) Data definition language. Ans: B Q.3 The view of total database content is (A) Conceptual view. (C) External view. Ans: A Q.4 Cartesian product in relational algebra is (A) a Unary operator. (B) a Binary operator. (C) a Ternary operator. (D) not defined
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Data transmission‚ digital transmission‚ or digital communications is the physical transfer of data (a digital bit stream) over a point-to-point or point-to-multipoint communication channel. Examples of such channels are copper wires‚ optical fibres‚ wireless communication channels‚ and storage media. The data are represented as an electromagnetic signal‚ such as an electrical voltage‚ radiowave‚ microwave‚ or infrared signal. Data representation can be divided into two categories: Digital
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steps possible is one of the principal challenges in programming. Algorithms has three different use‚ it is use for calculating‚ data processing and automated reasoning. However‚ there are lots of applications that are still missing in the Mobile App Industry which is indeed helpful for the user of smartphones. This study will develop an algorithm which will fall under the data processing which will be applied to a mobile applications. The Mobile Application that are being develop has something to do
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What is Data Communications? Next Topic | TOC The distance over which data moves within a computer may vary from a few thousandths of an inch‚ as is the case within a single IC chip‚ to as much as several feet along the backplane of the main circuit board. Over such small distances‚ digital data may be transmitted as direct‚ two-level electrical signals over simple copper conductors. Except for the fastest computers‚ circuit designers are not very concerned about the shape of the conductor or
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Outline Introduction Distributed DBMS Architecture Distributed Database Design Distributed Query Processing Distributed Transaction Management Data Replication Consistency criteria Update propagation protocols Parallel Database Systems Data Integration Systems Web Search/Querying Peer-to-Peer Data Management Data Stream Management Distributed & Parallel DBMS M. Tamer Özsu Page 6.1 Acknowledgements Many of these slides are from notes prepared by Prof. Gustavo
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.......................................................... 2 1.4 Assumption .......................................................................................................................... 2 2. Online Shopping System Requirement Analysis..................................................................... 2 2.1 Requirement Definition ....................................................................................................... 2 2.2.1 Functional Requirement ..........
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at 42.2mL in the data table. 7. The volume the pennies occupied was recorded as 10.6mL by subtracting the final volume of water from the initial volume of water. 8. Steps 1-7 was repeated after emptying the graduated cylinder and drying the pennies thoroughly. A different set of 30 pennies was used. 9. The average density of a penny was calculated at 6.8462g mL. Observations: The unknown liquid that was classified as Methanol was clear in color and had no scent. The recorded data for all 4 procedures
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Citizen-generated data Diedre Brown‚ Dawn Claggett‚ Emmanuel Lea‚ Peggy Sasso‚ and Lucretia William HCS/535 May 25‚ 2015 Jamila Jones‚ Instructor The health care industry is committed to supporting its communities. The industry continues to seek avenue to keep professionals and the public informed. The use of citizen-generated data is proving to be an increasing avenue to increase this awareness. The purpose of this paper is to provide a Team discussion about citizen-generated data and its advantages
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Assignment #2 EC1204 Economic Data Collection and Analysis Student No. 110393693 Part 1: Question 2 From analysing the Data on the Scatter Plot the relationship between the GDP and the Population of Great Britain from 1999-2009 appears to be a moderate positive correlation relationship. Both variables are increasing at a similar rate and following a similar pattern which would indicate this relationship. This relationship would tend to be a positive one as more people are available to the
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After watching the Data-Based Decision Making webinar presented by Amy Elledge‚ I am more aware of the importance of collecting data and how to use it to properly address students’ needs. Data-Based Decision Making is one of the most important factors/roles within Response to Intervention/Instruction (RTI). It is an essential component of RTI. If not utilized using logic and with a purpose/goal in mind‚ the data that is being/has been collected will be no good. Data-Based Decision Making can
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