CS601 Short Notes – Data Communication Notes PDF

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CS601 Short Notes - Data Communication Notes PDF
CS601 Short Notes – Data Communication Notes PDF

 

Database systems offer excellent facilities for restoring data to the nearest point data backups and a good recovery mechanism for those backups to get back what was backed up data. Sometimes it happens that the database that was used, and a very important transaction were created after the last backup was done  suddenly due to any catastrophic situation database crashes (improper shutdown, invalid disk access, etc.

Now in such situation, the database management system should be able to restore the database to a
consistent state so that transactions made after the last backup are not lost. Costs:
Exploiting all these advantages of database systems entails certain additional costs an organization that is about to adopt a database environment. These fees can also be known as database system disadvantages.

Different types of costs (financial and Personnel) that organizations face when implementing a database system are listed below:
o High costs:
Database systems have a number of inherent fees that everyone bears the organization that is going to accept it. High costs are one of these inherent charges includes the need for specialized software that is used to operate database systems.

Additional and specialized hardware and technically qualified personnel are required to be accepted into the database system, all these requirements must be invested by the organization a nice amount of money to meet all the requirements of database systems. o Conversion cost: Once an organization decides to operate a database system, it is not only the finance and technical staff needed to move to the database
system, it also has some conversion fees needed to adopt the database system.

CS601 Short Notes – Data Communication Notes PDF