Question 91
[QID: 929] How many layers are present in the TCP/IP Reference model?
Detailed Solution
The classic TCP/IP reference model comprises 4 layers: Application, Transport, Internet, and Network Access.
[QID: 929] How many layers are present in the TCP/IP Reference model?
The classic TCP/IP reference model comprises 4 layers: Application, Transport, Internet, and Network Access.
[QID: 930] A top-to-bottom relationship among the items in a database is established by a:
A Hierarchical schema arranges data records in top-to-bottom parent-child tree structures.
[QID: 931] Which of these is not a database object?
Tables, Indexes, Sequences, and Triggers are persistent database schema objects, while a Cursor is a temporary control pointer used in procedural SQL code.
[QID: 932] Data items grouped together for storage purposes are called a:
A Record (row or tuple) is a set of related data items/fields grouped together as a logical storage unit.
[QID: 933] A set of objects that share a common structure and a common behaviour is called:
A Class defines the common blueprint, attribute state structure, and behavioral methods shared by all instantiated objects.