Introduction Objectives Objectives Upon completion of this chapter‚ you should be able to: Define security Describe Describe an information system and its components Define database management system functionalities Outline the concept of information security Identify the major components of information security architecture Define database security Describe security methods Security Security Definition Security is defined as the level and degree of being free from danger and
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| | | | | | | | | |Information Technology Department | | | |SCHOOL OF INFORMATION AND TECHNOLOGY
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Short Answered Questions: 1. What is the purpose of having foreign key(s) in a relational database table? i. Represent a relationship between tables ii. Foreign key in one table has the same value‚ referencing another table’s primary key iii. Referential integrity 2. What is the purpose of having a primary key in the relational database table? i. Primary key is used as a unique identifier to represent the data in that row. ii. It is also used to provide
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misusing the funds. One of the biggest flaws with the current system is that the lawmakers‚ including the senators and the representatives‚ are responsible for deciding which agencies and beneficiaries the appropriated allowance will go to. Even if the DBM (Department of Budget and Management) will directly release the funds to the respective NGOs and implementing agencies‚ these agencies were personally handpicked by the legislators. This means that they could have picked their “favorite” NGOs‚ set-up
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By Arun Sen and Atish P. Sinha A Comparison of Data Warehousing Methodologies Using a common set of attributes to determine which methodology to use in a particular data warehousing project. DATA INTEGRATION TECHNOLOGIES have experienced explosive growth in the last few years‚ and data warehousing has played a major role in the integration process. A data warehouse is a subjectoriented‚ integrated‚ time-variant‚ and nonvolatile collection of data that supports managerial decision making
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with which we are all familiar. How does this concept apply to electronic business and the emergence of the digital firm? Support your contentions. (Points : 25) 8. (TCO C) List and describe three main capabilities or tools of a DBMS. (Points : 25)
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Homework 7_1 ECET310 For a QPSK system and the given parameters‚ determine Carrier power in dBm Noise power in dBm Noise power density in dBm Energy per bit in dBJ Carrier-to-noise power ratio Eb/No ratio PC=10-12 W‚fb=20Kbps PN=10-16 W‚B=60 KHz 10 log (10^-12/.001)=-90dBm 10 log(10^-16/.001)= -130dBm 10 log(pn/.001)- 10logB= NdBm- 10logB = -130dBm-10log(60khz)= -177.8dBm 10 log(pc/fb)= 10 log(10^-12/20kbps)= -163dBj Pc/pn= 10 log (pc/pn)= 10 log (10^-12/10^-16)= 40dB‚ 41dB Eb/No
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Final Report Walk-In-Clinic Table of Contents Introduction to the Company 3 Description of the company 4 Problems 5 Justification 6 Description of Database and Application Design 7 Entities: 8 Implementing to MS ACCESS: 9 Referential Integrity: 9 Forms 10 Query and Report: 10 Database Application Utilization: 11 Database Administration Issues 11 Conclusion 13 Appendix 14 Introduction to the Company These days walk in clinics and hospitals‚ are under strong pressures from
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available by the Admin or BSG team. • 1st set of key(s) will be in the custody of the BM/DBM. • 2nd set of key (s) will be in the custody of designated person in the branch Ops (BSG) team. • For branches having Banca presence a 3rd set of key(s) can be requested from Admin • Custodian of the key(s) should be a permanent employee. • The responsibility for opening and closing the branch will rest between the BM/DBM and BSG. It is suggested this be locally coordinated in a manner that is equitable
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a set of programs which access that data. A DBMS coordinates both the physical and the logical access to the data‚ whereas a file-processing system coordinates only the physical access. * A DBMS reduces the amount of data duplication by ensuring that a physical piece of data is available to all programs authorized to have access to it‚ whereas data written by one program in a file-processing system may not be readable by another program. * A DBMS is designed to allow flexible access to data
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