CSIT 142 QUESTIONS WITH COMPLETE SOUTIONS!!

Hardware - Answer-the physical parts of a computer e.g monitor, cpu Software - Answer-Software is the set of instructions that tells the hardware what to do e.g excel Personal Info Security - Answer-Protecting your data by making strong passwords, installing antivirus, backing up your data Security Policies - Answer-Guidelines for employees when using the company's information resources. Firewalls - Answer-Hardware firewall is a device that is connected to the network and filters the packets based on a set of rules. A software firewall run on the operating systems and intercepts packets as they arrive to a computer Password Security - Answer-The user name and the strong password should enable the system to be secure. Tools for Information Security - Answer-1) Authentication: something the know, " " they have, " " they are. 2) Access control determines which users are authorized to read, modify, add/delete info. 3) Encryption is process of encoding data upon its transmission or storage soonly authorized individuals can read it. Info security triad CIA - Answer-Confidentiality - ability to restrict access to only those who are allowed to see it. Privacy Integrity - assurance that the information being accessed has not been altered and truly represents what is intended. It can be both, intentional or unintentional (accident). Availability- information can be accessed and modified by anyone authorized to do so in an appropriate time-frame. data mining - Answer-the process of finding patterns in a given data set. Used in context of fraud detection. data warehouse - Answer-Provide generalized and consolidated data in multidimensional view. Also supply online analytical processing (OLAP) tools. A data warehouse helps business executives to organize, analyze and use their data for decision making. Database - Answer-an organized body of related information Primary key's function - Answer-This key is the unique identifier for each record in the table. Characteristic features for information quality - Answer-Reliability − It should be verifiable and dependable.Timely − It must be current and it must reach the users well in time, so that important decisions can be made in time. Relevant − It should be current and valid information and it should reduce uncertainties. Accurate − It should be free of errors and mistakes, true, and not deceptive. Complete − It should meet all the needs in the current context Supply Chain Management (SCM) - Answer-The management of information flows between and among activities in a supply chain to maximize total supply chain effectiveness and profitability Customer Relationship Management (CRM) Enterprise application module - Answer-A means of managing all aspects of a customer's relationship with an organization to increase customer loyalty and retention and an organization's profitability. Disadvantages of ERP - Answer-Expense and time in implementation Difficulty in integration with other system Risk of implementation failure Difficulty in implementation change Risk in using one vendor Advantages of ERP - Answer-Better customer satisfactionIncreased flexibility, quality, and efficiency Improved information accuracy and decision making capability Improve supplier performance Reduced quality costs Quick decision-making Forecasting and optimization