ISDS 1100 : ISDS Lecture Exam2
15 Mar 2019
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Document Summary
Isps connect: no matter what modem, individuals enter an isp through a. Enable the purchase of goods and services over the web. Protect credit card numbers: file servers. Data: packets can each follow their own route to their final destination. Coding e-mail so only person with the key can decode. Private: only the 2 parties have code. Renting cloud services allows companies to process large amount of data once in a while or seasonally: need to investigate the security policies of the third party. Alphabetic check: ensures that a field contains only letters of the alphabet. Numeric check: ensures that a field contains only numbers. Range check: verifies that entered data falls within a certain range. Consistency check: determines whether incorrect data has been entered. Multidimensional: rdbms (relational database management systems) Primary key field used as index to locate records. Data dictionary lists all tables in database.
