Solution:
Database integrity ensures that each row is uniquely identified by the primary key, which means that a proper search for an existing tuple (row) will always be successful.
Thus the required answer is D
Answer:
The above given statement is a fact.
Explanation:
A fact is nothing but a real statement which can never be false or imaginary or told in a future perspective. Let us analyze other options
Option 2: Opinion => An opinion can be anything and it can differ. A opinion is the way one people understand or perceive and give a statement according to that. An opinion always differs.
Option 3: Graphic => This is computer generated file, which can be true or false or imaginary. So this option is invalid
Option 4: Text => A text is nothing but words written together to convey a meaning. Though we feel like it suits the question, since the question speaks about the place, then it must definitely be fact and not just text.
UDP = connectionless vs. TCP is connection oriented.
the answer to the question is c. i hope this helps.
