Hey it is 15 hope this helps
Answer:
The answer to this question can be described as follows:
Explanation:
Relational data model:
The use of data tables to organize sets of entities into relationships requires a relational data model. this model work on the assumption, which is a primary key or code, that is included in each table configuration. The symbol for "relational" data links and information is used by other tables.
Model Design:
This model is used for database management, it consists of structure and language consistency. It is design in 1969.
Importance of data model:
This provides a common standard for processing the potentially sound data in machines, that was usable on almost any one device.
Big Data:
It moves to locate new and innovative ways to handle large volumes of authentication tokens and to gather business insights when offering high efficiency and usability at an affordable cost at the same time.
Answer:
d) either e1 or e5
Explanation:
Here, the instruction i1 goes ahead in trying to open the given file through an input stream buffer reader. If the given file name is wrong, it will indicate that an e1 file is not found or if any other IO errors due to invalid stream, no disc in drive e5 IO exception will be drawn.
Answer:
Firewalls
Explanation:
A firewall is simply a network security system whose main duty is. to prevent unwanted access to. private network.
Firewalls is measures to protect your computer against threats from human actions.
It is also the one singular thing that prevents you from accessing the file on your friends system.
Answer:
Relationship vs N-ary Relationship
Explanation:
It is not part of the design choice in ER model because N-ary reflects an indefinite form or better still creates an identifying attribute in an ER relationship. Example is the process of creating an auto-generated ID value
