reduancy refers to what database condition? The same data is recorded in more than one place in the same database. which best defines the function of a primary key uniquely identify the record what best describes the function of a foreign key. the primary key repeated in another table to show relation a database entity can be best described as: something that the something the database is concerned for, and can be added into the database which best defines the term database requirement? something
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defining a new business strategy for our company that will help us succeed in a competitive market. Looking over the different options of strategies we could use for our business, we feel that the differentiation strategy will fit most with our business model. With all of the existing coffee shops, our Broadway Café has to standout in order to survive in this competitive industry. Our differentiation strategy calls for the development of a product or service that offers unique attributes that customers
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Effect of a Paper Plane’s different masses on its time on flight The following experiment (underneath) is to do with a paper plane and its mass and time of flight. Here is a chance to experiment with different masses of a paper plane to observe how it affects it’s time of flight. Research Question: How does the mass (g) of a paper plane affect the time (seconds) of its flight? Hypothesis: It is expected that, the more mass on the paper plane’s wings, the time of flight will decrease. This
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System Development Life Cycle (SDLC) SDLC is a set of activities which are perform by analyst and developer to create the system for software. SDLC is a conceptual model used in project management that describes the stages involved in information system development project from a preliminary study through maintenance of the complete application. SDLC follows six steps-: 1 Preliminary study 2 Determination of system requirement 3 System design 4 Software development 5 System testing 6 Implementation
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Cryptographic Tunneling and OSI Model Data Security means protecting a database from destructive forces and the unwanted actions of unauthorized users. (Summer, 2004) With the explosion of the World Wide Web and the need to connect various secure private networks to it, it is vital to protect private data from exploitation when it reaches the public networks for transmission. At the heart of the networks through which the information flows is the Open Systems Interconnection (OSI) model. Various techniques
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There are nearly as many WAN categories as there are LAN choices. A very simple WAN is nothing more than two PCs calling each other over a modem connection. A more complex WAN may involve connecting hundreds of organizations together with high-capacity digital circuits. Usually a WAN takes the form of something between these extremes. What expansion of network services and benefits might the library achieve? I personally believe the library can accomplish more free will in offering the Wi-Fi
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Introduction When a child is diagnosed as deaf, parents are faced with a critical decision to make in the first few years of their child’s life. Deafness as defined by the Individuals with Disabilities Education Act (IDEA), means “ a hearing impairment that is so severe that the child is impaired in processing linguistic information through hearing, with or without amplification, that adversely affects a child's educational performance” (34 Code of Federal Regulations [section]300.8[c][3] [2013])
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way of practice which is referred to as Biomedical model of health. This Model focuses solely on the disease/illness and the individual body functions and the biological processes involved. On the other hand, there is a different section of society that believes that healthy living comprises not only the body but the mind and the environment an individual is exposed to. This is defined as the Biopsychosocial Model of Health. Biomedical Model of Health works with the several assumptions put forward
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ABSTRACT Online Analytical Processing is a powerful framework for the analysis of organizational data. OLAP is often supported by a logical structure known as a data cube, a multidimen- sional data model that offers an intuitive array-based per- spective of the underlying data. Supporting efficient index- ing facilities for multi-dimensional cube queries is an issue of some complexity. In practice, the difficulty of the in- dexing problem is exacerbated by the existence of attribute hierarchies
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1. What are the layers of the TCP/IP model? Application Layer Transport Layer Network Layer Network Access Layer 2. Which layer of the TCP/IP model processes requests from hosts to make sure a connection is made to the appropriate port? Application Layer 3. What are well – known ports? Ports reserved by ICANN 4. Identify the port numbers for the following applications. a. Telnet: 23 b. HTTP: 80 c. FTP: 20, 21 d. DNS: 25 e. DHCP: 67, 68 5. Define the purpose of a connection
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