Podcast
Questions and Answers
Define a Field or data item and provide an example.
Define a Field or data item and provide an example.
A Field or data item represents an attribute of some entity. Example: Salary, Job Title.
What is the type of relationship for the Hierarchical structure in databases?
What is the type of relationship for the Hierarchical structure in databases?
The type of relationship for the Hierarchical structure is one-to-many.
What are the logical data elements in a database?
What are the logical data elements in a database?
Logical data elements include Character, Field or data item, Record, File or table, and Database.
Define a Record and provide an example.
Define a Record and provide an example.
Signup and view all the answers
What are the common database structures?
What are the common database structures?
Signup and view all the answers
Telecommunication is the exchange of information in any form over networks.
Telecommunication is the exchange of information in any form over networks.
Signup and view all the answers
Internet is the most widely visible form of Telecommunications in daily life.
Internet is the most widely visible form of Telecommunications in daily life.
Signup and view all the answers
Network is an interconnected or interrelated chain, group, or system.
Network is an interconnected or interrelated chain, group, or system.
Signup and view all the answers
The formula for the number of connections in a network is $N(N-1)$ or $N^2 - N$.
The formula for the number of connections in a network is $N(N-1)$ or $N^2 - N$.
Signup and view all the answers
The critical mass is attained when social, political, and economic systems change.
The critical mass is attained when social, political, and economic systems change.
Signup and view all the answers
